Fits Nissan engines including the RB20DET, RB25DET, and RB26DETT. This HKS Fine Tune Timing Belt is engineered to maintain precise valve timing even under the extreme thermal and mechanical stresses of high-performance driving.

Standard rubber belts can stretch or fail when subjected to the high RPMs and increased heat common in tuned RB-series engines. The HKS upgraded belt features optimized material composition to prevent stretching, ensuring that your cam timing remains accurate throughout the powerband. This is a critical upgrade for any builds involving aftermarket camshafts or increased boost levels where timing belt deflection can lead to power loss or catastrophic engine failure.

• High-strength construction prevents belt stretch and tooth jumping
• Increased heat resistance for improved longevity in cramped, high-heat engine bays
• Designed for consistent tension and precise cam synchronization
• Direct replacement for the factory Nissan timing belt
• Manufacturer Part Number: 24999-AN001

Protect your engine's internal components with the HKS Upgraded Balancer Belt (24999-AM002), designed specifically for the Mitsubishi 4G63 engine. On high-performance 4G63 builds, a failed balancer belt often snaps and becomes entangled in the main timing belt, leading to catastrophic valve-to-piston contact. This HKS upgrade provides the durability required for high-RPM and high-heat environments.

Engineered with high-tensile strength cords and specialized heat-resistant rubber compounds, this belt minimizes stretch and resists thermal degradation. It is a critical reliability upgrade for any Mitsubishi 4G63 owner performing a timing service or building a performance-oriented engine.

• Specifically engineered for Mitsubishi 4G63 engine applications
• Constructed with high-strength glass fiber and heat-resistant rubber for maximum durability
• Superior resistance to heat, oil, and atmospheric conditions compared to standard belts
• Minimizes belt stretch to maintain precise engine harmonics
• Manufacturer Part Number: 24999-AM002

The HKS Fine Tune Timing Belt (24999-AM001) is engineered to provide the high-strength performance required for high-RPM Mitsubishi 4G63 engines. This belt replaces the standard OE timing belt with a reinforced design that minimizes stretching and prevents tooth shear, ensuring consistent valve timing and synchronization under extreme thermal conditions.

• Manufacturer Part Number: 24999-AM001
• Reinforced Strength: Designed to resist stretching and thermal degradation in high-horsepower applications.
• Precise Tooth Profile: Engineered to match engine-specific gear dimensions for smooth engagement and reduced friction.
• Engine Fitment: Fits Mitsubishi 4G63 engines.

By upgrading to the HKS Fine Tune series, you reduce the risk of timing skips and belt failure, protecting your valvetrain during aggressive driving or track use.

Fits 2002-2008 Subaru Impreza WRX and 2004-2008 WRX STi equipped with EJ20 or EJ25 engines.

The HKS Fine Tune Timing Belt is engineered for high-performance Subaru EJ-series engines where precise valve timing and durability are critical. Standard OE belts are prone to stretching and thermal degradation under the increased heat and tension of modified builds; this HKS upgrade uses optimized materials to prevent belt stretch even during high-RPM operation and sudden torque fluctuations.

• High-strength tensile cords significantly reduce stretching for consistent cam timing
• Heat-resistant rubber compound designed to withstand increased engine bay temperatures
• Optimized tooth profile for precise engagement with cam gears and crank sprocket
• Direct fitment for EJ20 and EJ25 dual overhead cam (DOHC) configurations
• Manufacturer Part Number: 24999-AF001

The HKS Fine Tune V-Belt 6PK1149 is engineered for high-performance applications where standard accessory belts may fail. Designed to withstand extreme temperatures and the stress of high-revving engines, this belt provides reliable power transfer for critical engine components while offering superior resistance to heat, cracking, and stretching.

• Manufacturer Part Number: 24996-AK051
• Belt Specification: 6PK1149 (6 Ribs, 1149mm length)
• Series: Fine Tune V-Belt
• High-durability construction optimized for performance driving
• Increased resistance to heat-induced wear and deformation
• Precision fitment for reliable operation of alternators, power steering, or AC compressors

The HKS Fine Tune V-Belt (6PK1710) is a high-performance serpentine belt designed for enthusiasts who demand more reliability than a standard OE rubber belt can provide. Engineered with a specialized EPDM rubber compound, this belt is built to withstand the extreme heat and stress of high-RPM operation and modified engine bays, significantly reducing the risk of stretching or slippage.

• Manufacturer Part Number: 24996-AK046
• Belt Specification: 6PK1710 (6 ribs, 1710mm length)
• Material: High-durability EPDM (Ethylene Propylene Diene Monomer) rubber
• Performance: Superior heat resistance and cold-weather durability compared to standard belts
• Reliability: Minimized stretch under load for consistent accessory drive performance

The HKS Fine Tune V-Belt 7PK1070 is a high-performance accessory drive belt engineered for modified engines and high-RPM applications. Unlike standard rubber belts, HKS Fine Tune belts are constructed from high-grade EPDM rubber, providing superior resistance to heat, cracking, and stretching under extreme engine bay temperatures.

This 7-rib belt is designed to maintain consistent tension and minimize slip, ensuring reliable operation of your alternator, power steering, or AC compressor even during spirited driving. The reinforced core provides the structural integrity needed to handle the increased loads and torque fluctuations found in tuned performance vehicles.

• Manufacturer Part Number: 24996-AK038
• Belt Type: 7PK (7 Ribs)
• Length: 1070mm
• Material: Heat-resistant EPDM rubber construction
• Performance: Reduced weight and increased durability over OE-style belts

Maintain optimal accessory drive performance under demanding conditions with the HKS Fine Tune V-Belt 7PK2109. This high-performance drive belt is engineered to replace factory belts in high-RPM or high-heat environments where standard rubber compounds often fail. Designed with advanced materials, it offers superior resistance to stretching, heat-induced cracking, and wear, ensuring your alternator, power steering, and air conditioning systems remain properly driven.

• Enhanced Durability: Specialized construction resists the extreme thermal cycles of modified engine bays.
• Optimized Grip: The 7-rib design (7PK) is precision-cut to minimize slippage and power loss during rapid acceleration and deceleration.
• Reliable Tension: Engineered to resist stretching, maintaining consistent tension and reducing the need for frequent adjustments.

• Manufacturer: HKS
• Product Line: Fine Tune V-Belt
• Belt Specification: 7PK2109
• Rib Count: 7
• Length: 2109mm
• Part Number: 24996-AK031

The HKS Fine Tune V-Belt 6PK2075 is engineered to handle the extreme thermal and mechanical stresses of high-performance engines. Standard OEM belts are often prone to stretching or slipping under rapid RPM changes; this HKS belt utilizes a high-tensile material designed to maintain consistent tension and grip, ensuring reliable operation of your alternator, water pump, and air conditioning compressor.

• Manufacturer Part Number: 24996-AK030
• Belt Specification: 6PK2075 (6 ribs, 2075mm length)
• Material: Advanced rubber compound optimized for superior heat resistance and durability in high-performance environments.
• Stability: Reduced thermal expansion and high-tensile strength minimize belt stretch and prevent slipping at high RPM.
• Aesthetics: Distinctive HKS blue finish for a premium look in the engine bay.

The HKS Fine Tune V-Belt 5PK935 is a high-performance accessory drive belt engineered to withstand the rigors of high-revving engines and extreme engine bay temperatures. Constructed from advanced EPDM (Ethylene Propylene Diene Monomer) rubber, this belt offers superior durability and resistance to cracking, heat, and ozone compared to standard automotive belts.

By utilizing a lightweight and high-grip material, the Fine Tune series minimizes power loss and prevents belt slip at high RPM, ensuring consistent operation of your alternator, power steering, or air conditioning systems. The 5-rib design and 935mm length provide a precise fit for specific performance applications requiring these dimensions.

• Manufacturer Part Number: 24996-AK014
• Belt Specification: 5PK935 (5 Ribs / 935mm)
• Material: Heat-resistant EPDM rubber construction
• Finish: Characteristic HKS Blue signature color
• Optimized for high-performance and high-RPM engine stability

Engineered for high-performance and high-RPM applications, the HKS Fine Tune V-Belt (5PK885) provides superior durability compared to standard rubber belts. Constructed from high-grade EPDM rubber, this belt offers excellent resistance to extreme temperatures and cracking, ensuring reliable power delivery to your engine's accessories even under demanding driving conditions.

The HKS Fine Tune series is designed to maintain consistent tension and reduce slip, making it a critical upgrade for tuned vehicles where increased engine heat and high rotational speeds are common.

• Brand: HKS
• Series: Fine Tune V-Belt
• Belt Profile: 5PK (5 Ribs)
• Length: 885mm
• Material: High-grade EPDM Rubber
• Manufacturer Part Number: 24996-AK013

The HKS Fine Tune V-Belt 5PK875 is a performance-grade accessory belt engineered for high-RPM stability and extreme temperature resistance. Designed to replace worn factory belts in high-performance applications, this reinforced belt minimizes stretch and prevents slipping to ensure reliable operation of engine accessories under demanding conditions.

• Product Line: Fine Tune V-Belt
• Specifications: 5-rib design with 875mm length (5PK875)
• Material: Specialized rubber compound optimized for superior resistance against heat, ozone, and cracking
• Reinforced Construction: High-tensile core reduces belt expansion at high speeds, maintaining consistent tension
• Manufacturer Part Number: 24996-AK012

The HKS Fine Tune V-Belt 4PK970 (MPN 24996-AK011) is a performance-grade serpentine belt designed to withstand the extreme heat and high-RPM conditions of tuned engines. Moving beyond standard EPDM or chloroprene belts, the Fine Tune series is engineered to reduce slip and maintain consistent accessory drive performance under aggressive driving loads.

• High-RPM Stability: Specialized core materials minimize stretch, ensuring that your alternator, power steering, or AC compressor maintains consistent operation at high engine speeds.
• Heat Resistance: Advanced rubber compounds prevent the belt from becoming brittle or cracking when subjected to high engine bay temperatures.
• Superior Grip: The 4-rib (4PK) profile is precision-cut to seat perfectly into the pulley grooves, reducing parasitic loss and belt squeal.
• Specifications: 4-rib configuration with a 970mm effective length.

As a critical component of your engine's external drive system, this HKS Fine Tune belt provides the reliability needed for both street and track applications.

The HKS Fine Tune V-Belt 4PK925 is a high-performance accessory drive belt engineered to withstand the extreme conditions of tuned and track-driven engines. Standard rubber belts often suffer from stretching and cracking under high-RPM stress and elevated engine bay temperatures; HKS solves this with a reinforced belt construction that maintains consistent tension and grip.

• Manufacturer Part Number: 24996-AK009
• Belt Type: 4PK925 (4-rib, 925mm length)
• Material: Enhanced EPDM rubber for superior heat resistance and durability
• Performance: Reduced belt stretch and slippage at high engine speeds
• Reliability: Optimized for longevity and stable accessory performance

The HKS Fine Tune V-Belt 4PK910 (24996-AK008) is a high-performance upgrade over standard factory belts, specifically engineered to withstand the increased thermal and mechanical stresses of modified engines. Designed for precision and reliability, these belts offer superior resistance to heat, cracking, and stretching, ensuring consistent performance even during high-RPM operation.

HKS utilizes advanced materials to provide a belt that maintains optimal tension and grip. This reduces the risk of slippage and belt-related failures common in high-performance or track-driven vehicles. The 4PK910 specification ensures a precise fit for specific accessory pulley configurations, replacing worn or inefficient OE belts with a specialized racing-grade component.

• Brand: HKS
• Product Line: Fine Tune V-Belt
• Part Number: 24996-AK008
• Size/Spec: 4PK910 (4 Ribs, 910mm length)
• Enhanced durability and heat resistance for performance applications
• Engineered to minimize slippage and stretch under heavy load

The HKS Fine Tune V-Belt (4PK895) is a high-performance upgrade designed to withstand the extreme thermal and mechanical stresses of high-revving and modified engines. By utilizing advanced EPDM (Ethylene Propylene Diene Monomer) rubber, HKS provides a belt that maintains its integrity in harsh engine bay environments where standard belts may crack or slip.

• High Heat Resistance: EPDM construction offers superior resistance to temperature fluctuations compared to traditional belts, preventing premature degradation.
• Increased Durability: Optimized for high-RPM operation, reducing the risk of belt stretch and ensuring consistent accessory drive performance.
• Enhanced Grip: Designed to minimize slippage, providing reliable power delivery to critical engine components.
• Precision Specifications: 4-rib configuration with an 895mm effective length (4PK895).
• Manufacturer Part Number: 24996-AK007

The HKS Fine Tune V-Belt 4PK880 is a high-performance accessory drive belt engineered to withstand the extreme conditions of high-RPM operation and high-temperature engine bays. Utilizing advanced EPDM (Ethylene Propylene Diene Monomer) rubber construction, this belt provides superior resistance to ozone, heat, and wear compared to standard OEM-grade belts. The specialized material composition reduces the risk of belt stretch and slippage, ensuring consistent power delivery to your engine accessories whether on the street or the track.

• Manufacturer Part Number: 24996-AK005
• Belt Type: 4PK (4 Ribs)
• Length: 880mm
• Construction: High-durability EPDM rubber for increased longevity
• Performance: Reduced weight and high-tension resistance to prevent slippage
• Color: Signature HKS Blue finish

The HKS Fine Tune V-Belt 4PK875 is engineered to withstand the extreme thermal and mechanical stresses of high-performance engines. This belt replaces standard OE accessory belts with a more durable EPDM rubber compound, offering superior resistance to heat-induced cracking and stretching. Designed for consistent power transmission at high RPMs, the Fine Tune series provides the reliability needed for both street and track applications.

• Manufacturer Part Number: 24996-AK004
• Belt Specification: 4PK875 (4 Ribs, 875mm)
• Material: High-durability EPDM rubber for thermal resistance
• Optimized rib profile for improved grip and reduced slippage
• Direct replacement for factory accessory belts

The HKS Fine Tune V-Belt (3PK875) is a high-performance upgrade designed to replace standard accessory belts with a more durable, reliable solution. Constructed from advanced EPDM (Ethylene Propylene Diene Monomer) rubber, this belt is engineered to withstand the extreme temperature fluctuations and high-RPM stresses common in performance engine bays. The EPDM material offers superior resistance to heat, cracking, and ozone degradation compared to traditional chloroprene rubber belts.

By providing consistent tension and a high-friction rib profile, this belt ensures stable power transmission to your vehicle's accessories while minimizing the risk of belt slip or squeal. This is an essential component for drivers who require dependable performance under demanding conditions, whether on the street or the track.

• Manufacturer Part Number: 24996-AK001
• Belt Specification: 3PK875
• Number of Ribs: 3
• Length: 875mm
• Material: High-durability EPDM rubber construction
• Optimized for heat resistance and reduced stretching over time

Fits Honda Prelude models equipped with the H22A VTEC engine.

Secure your engine's valvetrain synchronization with the GReddy High-Performance Timing Belt. Designed specifically for the high-revving Honda H22A VTEC, this belt replaces the factory component with a more durable alternative capable of resisting the extreme heat and high-tension environments found in performance applications. It ensures precise crankshaft-to-camshaft timing, which is critical for protecting interference engines from catastrophic damage during high-RPM operation.

• Manufacturer Part Number: 13554504
• Application: Honda H22A VTEC engines
• Build: High-tensile strength construction to prevent stretching and tooth shear
• Performance: Enhanced thermal stability for track use or spirited street driving
• Engine Protection: Minimizes the risk of timing slip to safeguard valves and pistons

Fits 1994-2001 Acura Integra (GS-R and Type R) and 1999-2000 Honda Civic Si with DOHC VTEC engines.

The GReddy Timing Belt (MPN 13554503) is engineered for the high-performance demands of B-series DOHC VTEC engines. Designed to resist stretching and heat soak, this belt ensures precise valve timing even under the extreme stress of high-RPM operation and high-compression builds. It is a critical upgrade for enthusiasts seeking a more durable alternative to standard factory belts during a timing service or engine overhaul.

• High-tensile strength construction reduces belt stretch for consistent timing
• Superior heat and crack resistance compared to standard OE compounds
• Optimized tooth profile for precise engagement with B16A and B18C cam gears
• Designed for high-output naturally aspirated and forced induction applications
• Manufacturer Part Number: 13554503

Maintain optimal accessory performance with the GReddy High Performance V-Belt, specifically engineered for the Subaru FA20 engine platform. This heavy-duty belt is designed as a high-performance replacement for the standard factory unit, providing the increased durability and slip resistance required for high-RPM operation and spirited driving conditions.

• Direct fit for Subaru FA20 engines
• Reinforced construction for improved heat resistance and longevity compared to OE belts
• Engineered to maintain consistent tension under high-load performance applications
• Manufacturer Part Number: 13514509

Fits select 1992-2005 Lexus GS300, IS300, SC300, and Toyota Supra (2JZ-GE / 2JZ-GTE).

The GReddy Performance Timing Belt is engineered to maintain precise valve timing and withstand the increased heat and mechanical stress of high-performance driving. Designed specifically for the Toyota 2JZ engine platform, this belt provides the durability and tensile strength required for both naturally aspirated and twin-turbocharged applications.

• Manufacturer Part Number: 13514502
• High-tensile strength construction to prevent belt stretch and timing drift
• Heat-resistant compounds for consistent performance in demanding engine bays
• Precision-molded teeth for reduced friction and optimal pulley engagement
• Direct replacement for factory timing belts

Whether performing a standard service interval on an SC300 or supporting a high-boost Twin Turbo Supra build, this GReddy belt ensures your valvetrain remains perfectly synchronized under load.

Fits Toyota 1JZ-GTE engines.

The GReddy Timing Belt (MPN 13514501) is engineered to maintain precise valve timing and synchronization under the high-load conditions common in performance tuning. For high-RPM applications, a reliable timing belt is critical to preventing belt stretch and ensuring the valvetrain remains perfectly indexed with the rotating assembly.

• Specifically designed for the Toyota 1JZ-GTE engine platform
• Engineered to resist stretching and heat fatigue during high-RPM operation
• Direct replacement for the factory unit in high-performance builds
• Manufacturer Part Number: 13514501

Fits select 2004-2009 Subaru Baja, Forester, Impreza (WRX/STI), Legacy, Outback, and 2005 Saab 9-2X.

Protect your interference engine from catastrophic failure with the Gates Performance Racing Timing Belt Component Kit with Water Pump (TCKWP328RB). Engineered for high-stress applications, this kit is specifically designed for high-RPM and high-heat environments where standard rubber belts might stretch or fail. By replacing the entire timing system simultaneously, you ensure that tensioners, idlers, and the water pump work in perfect synchronization with the reinforced belt.

The centerpiece of this kit is the Gates Racing timing belt, which is significantly stronger and more heat-resistant than original equipment belts. This makes it an essential upgrade for tuned EJ-series engines. The inclusion of a high-quality water pump ensures that your cooling system is refreshed during this critical maintenance interval, preventing future teardowns due to seal leaks or bearing failure.

• High-Performance Belt: Constructed with high-strength HNBR elastomeric compounds for increased durability and heat resistance.
• Comprehensive Solution: Includes the timing belt, hydraulic tensioner, all necessary idler pulleys, and a water pump with gaskets.
• OE-Quality Components: Tensioners and idlers meet or exceed original equipment specifications for bearing life and belt tracking.
• MPN: TCKWP328RB

Fits 2013-2021 Subaru WRX STI and 2013-2014 Impreza WRX STI models.

The Gates TCKWP328DN Timing Belt Component Kit with Water Pump provides a comprehensive solution for one of the most critical maintenance procedures on the Subaru EJ engine platform. Rather than sourcing individual components, this kit ensures all high-wear timing system parts are replaced simultaneously with matched components for optimal performance and belt tracking. The inclusion of a new water pump allows for a complete cooling and timing refresh, preventing the need for redundant labor in the future.

• Complete kit includes timing belt, water pump, tensioner, and all necessary idler pulleys
• Designed to meet or exceed OE specifications for fit, form, and function
• Simplifies maintenance by bundling all required components under one part number
• Constructed with high-grade materials to withstand engine heat and high-RPM operation
• Manufacturer Part Number: TCKWP328DN

Maintain valvetrain synchronization and cooling efficiency in your EJ-series engine with the Gates Performance Racing Timing Belt Component Kit with Water Pump (TCKWP328CRB). This comprehensive service solution fits select 2008-2014 Subaru Forester and Impreza WRX models. Unlike standard belts, the Gates Racing belt features high-strength construction designed to withstand the increased thermal loads and higher RPMs encountered in performance driving.

This all-in-one kit eliminates the guesswork of sourcing individual parts by providing the racing timing belt, a new water pump with gasket, and all necessary idler pulleys and tensioners. Replacing these components as a single system is critical for preventing catastrophic engine failure caused by worn bearings or belt stretch.

• Manufacturer Part Number: TCKWP328CRB
• Reinforced Racing Belt: Specifically engineered for high-heat and high-stress applications.
• Complete Component Set: Includes water pump, hydraulic tensioner, and all required idler pulleys.
• Direct Fitment: Designed to match OE dimensions for straightforward installation on Subaru 2.5L turbo and non-turbo engines.

Fits 2008-2014 Subaru Forester and Impreza WRX.

The Gates TCKWP328C Timing Belt Component Kit with Water Pump offers a comprehensive solution for critical engine maintenance. On Subaru interference engines, the timing belt and water pump are high-wear items that must be replaced together to prevent catastrophic engine failure. This professional-grade kit simplifies the service by providing every synchronized component needed for a complete overhaul, ensuring proper belt tension and cooling system performance.

• Includes a high-strength timing belt, hydraulic tensioner, all necessary idler pulleys, and a premium water pump with gasket
• Designed to meet or exceed OE specifications for material quality, belt tooth profile, and bearing tolerances
• Water pump is engineered for efficient coolant flow and long-term durability
• Eliminates the risk of mixing old and new components in the timing drive system
• Manufacturer Part Number: TCKWP328C

Fits 2003-2004 Subaru Impreza WRX (2.0L EJ20).

Ensure your EJ20 remains timed perfectly under high-stress conditions with the Gates TCKWP328BRB Performance Racing Timing Belt Component Kit. Designed for high-RPM and high-output applications, this comprehensive kit replaces your worn OE belt and cooling components with racing-grade hardware. The Gates Racing belt is constructed from high-strength HNBR elastomeric composites, providing up to three times the heat resistance and significantly higher teeth strength compared to standard belts.

This all-in-one solution simplifies maintenance by including the critical components that should always be replaced during a timing service to prevent catastrophic engine failure.

• Manufacturer Part Number: TCKWP328BRB
• High-Performance Belt: Blue Gates Racing belt for superior heat and stretch resistance
• Water Pump: Included to ensure optimal cooling system integrity
• Complete Components: Includes necessary idlers and tensioners for a full service
• Precision Fitment: Designed to exact OE dimensions for a straightforward installation

Fits 2002-2003 Subaru Impreza WRX.

This Gates Performance Racing Timing Belt Component Kit with Water Pump provides a complete solution for high-performance timing system maintenance. Designed to withstand the increased heat and stress of modified engines, the kit features a Gates Racing timing belt, which is significantly stronger and more heat-resistant than standard OE-equivalent belts. Replacing the water pump, tensioner, and idlers during a timing belt service is critical to preventing catastrophic engine failure on the Subaru EJ-series interference engine.

• Includes high-strength Gates Racing performance timing belt
• Heavy-duty water pump with precise fitment
• OE-quality hydraulic tensioner and idler pulleys
• Replaces manufacturer part number: TCKWP328ARB
• Engineered for high-RPM and high-temperature applications