Fits 2000-2002 Nissan Skyline GTR (2.6L) with manual transmission (specifically for models produced from September 2000 through 2002).

This Koyo high-performance aluminum racing radiator is engineered to provide superior cooling for the R34 Skyline GTR. By replacing the stock plastic-tank radiator with a durable, high-efficiency all-aluminum core, it more effectively dissipates heat from the 2.6L twin-turbo engine during high-stress driving conditions. This direct-fit unit ensures proper engine temperature regulation and long-term reliability on the street or track.

• Specifically designed for Manual Transmission (MT) models
• All-aluminum construction for maximum thermal efficiency
• Direct replacement for the factory R34 GTR radiator
• Precision TIG-welded for maximum durability
• Manufacturer Part Number: HH023194

Fits 1968-1973 Nissan 510 Base models (1.6L).

Ensure your classic cooling system is up to the task with this Koyo replacement radiator. Engineered as a direct bolt-in solution for the 1968-1973 Nissan 510, this unit is designed specifically for manual transmission (MT) applications. It maintains factory-correct mounting points and 1.6L hose connections to ensure a seamless installation without the need for custom fabrication or modification.

• Precision fitment for 1968-1973 Nissan 510 Base models
• Specifically for Manual Transmission (MT) only
• Full compatibility with wagon body styles
• Direct bolt-in using factory 1.6L engine hose connections
• Maintains original mounting points for easy installation
• Manufacturer Part Number: HH022598

Fits 2009-2019 Nissan GT-R (3.8L) models including Base, Premium, Black Edition, Nismo, Pure, and Track Edition.

The Koyorad HH022360 Racing All Aluminum Radiator is a performance-engineered cooling solution designed specifically for the high-thermal demands of the R35 chassis. The VR38DETT engine generates extreme heat under load; this radiator addresses cooling bottlenecks by replacing the factory unit's plastic end tanks with a fully TIG-welded aluminum construction. This eliminates common failure points while significantly increasing heat dissipation efficiency for both track and spirited street use.

• Direct-fit design utilizing original mounting points and factory fan shrouds
• Full all-aluminum construction with hand-TIG-welded seams for maximum durability
• High-density core optimized for superior thermal transfer in high-stress environments
• Polished finish for enhanced corrosion resistance and engine bay aesthetics
• Precision-engineered to meet or exceed OE cooling standards for high-performance applications
• Manufacturer Part Number: HH022360

Fits select 2004-2015 Nissan Titan and 2005-2015 Nissan Armada (5.6L V8).

Maintain optimal engine temperatures and thermal efficiency with the Koyo HH021687 radiator. This unit is designed specifically for 5.6L V8 applications where a dedicated external transmission cooler is used. By focusing on engine cooling without an integrated transmission cooling circuit, this radiator provides reliable performance for high-load or towing conditions. It is engineered to meet or exceed original equipment standards for fitment and cooling capacity.

• Direct Fit: Designed to install into factory mounting points without modification.
• Technical Requirement: This model requires the use of an external transmission cooler (not included).
• Durable Construction: Built with high-quality materials to resist corrosion and handle the thermal stress of heavy-duty cycles.
• Manufacturer Part Number: HH021687

Fitment Applications:

Fits 2003-2006 Nissan 350Z models (3.5L) including Base, Enthusiast, Grand Touring, Performance, Touring, Track, and 35th Anniversary Edition.

The Koyorad HH Series Racing All Aluminum Radiator is engineered as a high-performance cooling solution for the Z33 chassis. Replacing the factory plastic-tank radiator, this all-aluminum unit provides significantly improved durability and thermal efficiency. Each radiator is manufactured using the Nocolok brazing process for a robust core bond and is fully TIG-welded by hand for maximum strength under high-pressure conditions.

• Manufacturer Part Number: HH021568
• Material: High-grade aluminum with TIG-welded tanks
• Design: Performance-grade racing core for optimized heat dissipation
• Installation: Direct-fit design utilizes factory mounting points and fan shroud locations
• Engine Compatibility: Specifically designed for the 3.5L V6 (VQ35DE)

Fits 1998 to August 2000 Nissan Skyline GT-R R34 models equipped with the 2.6L engine and manual transmission.

This Koyo radiator is engineered to provide precise fitment and reliable cooling for the R34 GT-R platform. Designed specifically for manual transmission (MT) vehicles produced within the 1998 to August 2000 date window, it serves as a robust replacement for the factory unit in high-performance turbocharged applications. Please verify your vehicle's production date and transmission type to ensure proper compatibility.

• Manufacturer Part Number: HH020879
• Fitment: 1998-Aug 2000 Nissan Skyline GT-R R34 (2.6L)
• Transmission Type: Manual Transmission Only
• Note: For R34 Non GT-R models (RB25DE / RB25DET), please refer to part number HH020442

Fits 1995-1998 Nissan 240SX (2.4L) Base, LE, and SE models equipped with manual transmissions.

This Koyo radiator is engineered as a precision direct-fit replacement for the factory cooling system in the S14 chassis. Designed to maintain critical thermal tolerances for the 2.4L KA24DE engine, it replaces aging original equipment that may be prone to fatigue or leaks. This unit ensures your cooling system remains pressurized and efficient, whether for daily street use or spirited driving.

• Direct-fit replacement for 1995-1998 Nissan 240SX S14 chassis
• Specifically designed for Manual Transmission (MT) models
• Compatible with the 2.4L KA24DE naturally aspirated engine
• Built to meet or exceed OE configuration for mounting and hose connections
• Manufacturer Part Number: HH020645

Fits select 1989-1994 Nissan 240SX (2.4L) with manual transmission.

Maintain thermal efficiency and protect your engine with the Koyo performance radiator, specifically engineered for the S13 chassis. This unit serves as a high-quality replacement for the aging factory radiator, designed to meet the cooling demands of the 2.4L KA24E and KA24DE engines. It utilizes factory mounting points for a straightforward installation in manual transmission models.

• Direct-fit replacement for OE radiator
• Compatible with factory fans and shrouds
• Engineered for manual transmission (MT) applications
• Precision-crafted for 1989-1994 S13 cooling systems
• Manufacturer Part Number: HH020539

Vehicle Fitment

Fits 1994-1998 Nissan Skyline GT-R/GT-S (2.6L) and R34 (Non GT-R) with RB25DE or RB25DET engines.

This Koyo radiator is a performance-oriented cooling solution engineered specifically for manual transmission Nissan Skylines. Designed to replace the aging factory unit, the HH020442 provides reliable thermal regulation for the high-output RB-series engines. It features precise construction to ensure a direct-fit installation into the factory mounting points while maintaining optimal coolant flow during spirited driving.

• Specifically engineered for Manual Transmission (MT) models.
• Direct fit for 1994-1998 Nissan Skyline R33 and select R34 chassis.
• Compatible with RB25DE, RB25DET, and 2.6L Turbo engine configurations.
• Manufacturer Part Number: HH020442

Fits 1995-1998 Nissan 240SX Base, LE, and SE models (2.0L).

The Koyo N-FLO Triple Pass Radiator (HH020369N) is engineered to solve the thermal management challenges of high-performance 2.0L turbocharged applications. Specifically designed for manual transmission S14 chassis builds, this radiator utilizes Koyo’s proprietary N-FLO technology. By routing coolant through three distinct passes within the core, it maximizes heat dissipation compared to standard single-pass designs, ensuring stable operating temperatures even under high load or track conditions.

• Precision fitment for 1995-1998 Nissan 240SX with manual transmission
• N-FLO Triple Pass internal baffles for superior cooling efficiency
• High-capacity aluminum core construction for improved heat rejection
• Direct replacement for the restrictive factory cooling unit
• Manufacturer Part Number: HH020369N

Fits 1989-1994 Nissan 240SX (S13) models equipped with manual transmissions and SR20DET engine configurations.

The Koyorad N-FLO Dual Pass radiator is engineered for high-performance applications where superior thermal management is critical. Unlike standard single-pass radiators, the N-FLO design utilizes internal partitions to direct coolant across the core twice. This dual-pass flow pattern significantly increases heat dissipation by keeping coolant in the core for a longer duration, providing a more efficient cooling cycle without requiring a bulky, oversized footprint. This all-aluminum performance upgrade replaces aging factory units, offering increased durability and resistance to the high pressures of spirited driving or track use.

• N-FLO Dual Pass technology for maximized cooling efficiency
• Full aluminum construction with precision TIG-welded tanks
• Designed specifically for S13 chassis with SR20DET manual transmission setups
• High-density core for improved heat transfer and airflow
• Manufacturer Part Number: HH020252N

Fits 1990-1996 Nissan 300ZX Turbo (3.0L).

Protect your Z32's engine from heat-related failure with the Koyo HH020243 radiator. Specifically engineered for manual transmission 300ZX Turbo models, this radiator serves as a precise replacement for the aging factory unit. Whether you are maintaining a stock restoration or managing increased thermal loads from performance modifications, Koyo's engineering ensures consistent heat dissipation and a perfect fit in the original engine bay configuration.

• Manufacturer Part Number: HH020243
• Transmission Type: Manual (MT)
• Engine Compatibility: 3.0L V6 Turbo
• Construction: High-grade materials for improved durability and corrosion resistance
• Installation: Direct-fit replacement for the factory radiator

Fits select 1988-1994 Nissan Cefiro, Laurel, and Skyline GT-R/GT-S (2.0L / 2.6L).

This Koyo radiator (HH020214) provides critical cooling system reliability for turbocharged and naturally aspirated Nissan applications. Designed to meet strict engineering standards, it ensures efficient heat dissipation during spirited driving or daily operation, replacing worn or clogged factory units to protect your engine from thermal stress.

• Precision engineered for Skyline (R32), Cefiro (A31), and Laurel (C33) chassis
• Designed for efficient thermal transfer and heat dissipation
• Utilizes factory mounting points for a clean installation
• Compatible with 2.6L and 2.0L engine configurations
• Manufacturer Part Number: HH020214

Fits select 1984-1995 Toyota 4Runner, Pickup, and Tacoma models (2.4L I4 22R/RE engines) equipped with a manual transmission.

This Koyo replacement radiator is designed to maintain consistent engine temperatures and restore the cooling efficiency of your Toyota drivetrain. Built to match OE specifications for mounting and performance, this unit serves as a direct-fit solution for the 22R and 22RE naturally aspirated inline-four engines. Please note that this radiator is specifically for manual transmission (MT) applications and will not fit vehicles with the 22R-ET turbo engine.

• Brand: Koyo
• Manufacturer Part Number: HH012827
• Application: Manual Transmission (MT) only
• Engine Compatibility: 2.4L I4 (22R/RE)
• Fitment Range: 1984-1995
• Constraint: Will not fit 22RET models

Fits 1976-1977 Toyota Celica GT and ST models equipped with the 2.2L engine and manual transmission.

Maintain optimal thermal efficiency in your classic Celica with this Koyo radiator. Designed to meet or exceed OE cooling requirements, this radiator serves as a direct-fit replacement for the aging factory unit in 1976-1977 models. It is specifically engineered for the 2.2L inline-four powertrain paired with a manual gearbox, ensuring proper mounting and coolant hose alignment.

• Manufacturer Part Number: HH012756
• Engine Compatibility: 2.2L I4
• Transmission Type: Manual Transmission (MT)
• Application: Cooling System
• Fitment: 1976-1977 Toyota Celica (GT/ST)

Fits 2022-2024 Toyota GR86 and Subaru BRZ.

The Koyo Competition All-Aluminum Radiator is a high-performance cooling solution engineered specifically for the demands of track use and spirited driving. By replacing the standard radiator's plastic tanks with robust, TIG-welded aluminum construction, this unit eliminates a common failure point while providing significantly better thermal management under high-load conditions.

• Direct-fit engineering ensures compatibility with factory mounting points and fan shrouds
• All-aluminum construction for maximum durability and heat dissipation
• Precision TIG welding for superior strength and pressure resistance
• Ideal for 2.4L FA24 engines subjected to high operating temperatures
• Manufacturer Part Number: HH012664

Fits 1971-1974 Toyota Celica Base, GT, LT, and ST models (2.0L).

Maintain optimal operating temperatures in your classic Toyota with this precision-engineered Koyo radiator. Specifically designed for manual transmission (MT) Celica models from 1971 to 1974, this unit provides a reliable cooling solution that meets the demands of 2.0L engines. Whether you are restoring a vintage GT or maintaining a daily-driven ST, this radiator ensures consistent thermal management and a precise fit.

• Direct replacement for factory manual transmission radiators
• High-efficiency core design for improved heat dissipation
• Manufactured with premium materials for long-term durability
• Compatible with factory mounting points and hose locations
• Manufacturer Part Number: HH012597

Fits 2008-2011 Lexus IS F (5.0L).

The Koyo HH012170 radiator is a high-efficiency cooling solution engineered for the 5.0L V8 Lexus IS F. Designed with performance in mind, this radiator provides the thermal capacity necessary to manage engine temperatures during demanding driving conditions. This is a "Race Use Only" component that features an optimized core for maximum heat dissipation.

Note: This radiator does not include an internal transmission cooler. For vehicles equipped with an automatic transmission, an external transmission oil cooler must be installed to ensure proper drivetrain cooling and operation.

• Manufacturer Part Number: HH012170
• Compatible with 2008-2011 Lexus IS F Base (5.0L)
• All-aluminum construction for increased durability and heat transfer
• Race-spec design for high-performance applications
• Requires external transmission cooler (not included)

Fits select 2007-2020 Toyota Tundra and 2008-2019 Toyota Sequoia (4.6L / 5.7L V8) with automatic transmissions.

The Koyo HH012076 Racing Radiator is engineered to provide superior thermal management for high-performance V8 Toyota trucks and SUVs. This heavy-duty radiator is designed to replace the stock unit, offering improved cooling efficiency for automatic transmission (AT) models during towing, off-roading, or high-load conditions.

• Manufacturer Part Number: HH012076
• Engine Compatibility: 4.6L and 5.7L V8
• Transmission: Automatic (AT)
• Required Component: Must be used with Koyo SK-C13 filler neck/adapter
• Cap Fitment: Not compatible with OE radiator cap; may use 16 psi radiator cap from 1998-2002 Land Cruiser

Authoritative Vehicle Fitment:

• 2008-2019 Toyota Sequoia (Limited, Platinum, SR5, TRD Sport)
• 2007-2020 Toyota Tundra (Base, Limited, Platinum, SR, SR5, 1794 Edition, TRD Pro)

Fits 1996-2000 Toyota Chaser JZX100 models equipped with the 2.5L turbocharged engine and manual transmission. This Koyo radiator (HH010860N) is engineered for precise fitment and reliable thermal management, serving as a high-quality replacement for the factory cooling unit.

Designed to handle the cooling demands of the turbocharged inline-six, this radiator utilizes factory mounting points for a straightforward installation. Whether you are maintaining a daily driver or a street-tuned JDM import, the HH010860N provides the durability and cooling efficiency expected from Koyo's engineering standards.

• Manufacturer Part Number: HH010860N
• Direct fit for 1996-2000 Toyota Chaser JZX100
• Engine Compatibility: 2.5L Inline-6 Turbo
• Transmission: Manual Transmission (MT) only
• Retains factory mounting and fan shroud points

Fits 1985-1987 Toyota Corolla Sport GTS (1.6L).

Maintain optimal operating temperatures for your 4AGE-powered AE86 with this Koyo replacement radiator. Designed specifically for the 1985-1987 Toyota Corolla Sport GTS, this unit provides a direct-fit solution to replace aged or leaking factory radiators. It utilizes factory mounting points and hose locations to ensure a straightforward installation, restoring the cooling efficiency required for the high-revving 1.6L engine.

• Manufacturer Part Number: HH010681
• Application: 1985-1987 Toyota Corolla Sport GTS (AE86)
• Engine Compatibility: 1.6L Inline-4 (4AGE)
• Direct-fit replacement for OE cooling performance

Fits 1992-1996 Toyota Chaser, Mark II, and Cresta JZX90 models with the 2.5L Turbo engine and manual transmission (JDM only).

This Koyo performance radiator is engineered as a direct replacement for the JDM JZX90 chassis, providing the thermal efficiency required for high-performance driving and forced induction applications. Designed to maintain optimal operating temperatures, it serves as a critical upgrade for aging factory units that may be prone to cracking or clogging.

• Direct Fitment: Engineered specifically for the 1992-1996 Toyota Chaser, Mark II, and Cresta (JZX90)
• Engine Compatibility: Validated for 2.5L Turbo platforms
• Transmission: Compatible with Manual Transmission (M/T) only
• JDM Spec: Confirmed fitment for Japanese domestic market vehicles
• Manufacturer Part Number: H010409

Whether you are restoring a classic JDM sedan or prepping a drift build, this Koyo radiator offers the reliability and cooling capacity needed for the 1JZ-GTE platform. Ensure your cooling system can handle the heat of the 2.5L turbo engine with this precision-manufactured component.

Fits 2006-2011 Honda Civic models.

Engineered for durability and precision, the Koyo Aluminum Filler Neck (FN2313) provides a robust replacement for factory cooling system components. Constructed from high-grade aluminum, this filler neck is designed to withstand the thermal stresses and pressures of performance driving while offering a cleaner, more professional look in the engine bay.

• Material: High-grade aluminum for superior heat and corrosion resistance
• Installation: Direct fit for specified Honda Civic applications
• Part Number: FN2313
• Required Accessory: Must be used with an SK-C13 or equivalent deep plunger style radiator cap (sold separately)

The Koyo CCS2410 Universal HyperCore Intercooler Core is engineered for custom forced induction applications where thermal efficiency and airflow are paramount. Featuring Koyo's proprietary HyperCore technology, this core utilizes a high-density fin pitch to maximize surface area for superior heat dissipation without causing significant boost pressure drop.

Constructed from high-grade brazed aluminum, this core provides a robust foundation for fabricators to weld custom end tanks, making it a versatile choice for bespoke turbocharger or supercharger cooling systems. Its 2.5-inch thickness offers a slim profile for installations with limited space while maintaining the cooling capacity needed for high-performance builds.

• Manufacturer Part Number: CCS2410
• Core Dimensions: 24in. x 10in. x 2.5in.
• Series: HyperCore High-Density Technology
• Material: Fully brazed aluminum
• Application: Universal / Custom fabrication

The Koyo HyperCore universal intercooler core (CCS2214) provides a premium foundation for custom forced induction setups requiring high-efficiency heat exchange. Constructed from lightweight, high-grade aluminum, this core features Koyo's proprietary HyperCore technology, engineered to maximize surface area and cooling capacity while maintaining a compact footprint.

As a universal component, this core is intended for fabricators building bespoke intercooler systems where specific dimensions and thermal performance are paramount. The high-density fin pitch ensures effective temperature drops for turbocharged or supercharged applications.

• Manufacturer Part Number: CCS2214
• Series: HyperCore
• Core Dimensions: 22in. x 14in. x 2.5in.
• Material: High-grade Aluminum
• Application: Universal core for custom end tank fabrication

The Koyo HyperCore Universal Aluminum Intercooler Core (CCR2810) is a high-performance solution designed for custom forced induction applications where cooling efficiency is paramount. Utilizing Koyo’s proprietary HyperCore technology, this core is engineered to maximize heat dissipation and maintain low intake air temperatures for turbocharged or supercharged engines.

Constructed from high-grade aluminum and featuring a precision-brazed design, this core offers exceptional thermal conductivity and structural integrity. At 4 inches thick, it provides a substantial cooling volume for high-horsepower builds requiring a custom-fabricated intercooler setup.

• Manufacturer Part Number: CCR2810
• Core Dimensions: 28in. x 10in. x 4in.
• Technology: Koyo HyperCore high-density fin pitch
• Material: All-aluminum construction
• Application: Universal; requires custom fabrication of end tanks and mounting

The Koyo HyperCore universal intercooler core provides a high-performance foundation for custom forced induction cooling systems. Engineered for fabricators and tuners, this core utilizes Koyo's proprietary HyperCore technology to maximize thermal transfer efficiency while maintaining a minimal pressure drop across the system.

Constructed from lightweight, high-grade aluminum, this 4-inch thick core is designed to withstand high-boost applications on both the street and the track. As a universal component, it allows for complete flexibility in end tank design and piping orientation to suit unique vehicle packaging requirements. The robust construction ensures long-term durability and consistent cooling performance under extreme thermal loads.

• Brand: Koyo
• Series: HyperCore
• Material: High-Grade Aluminum
• Core Dimensions: 23" x 11" x 4"
• Inlet/Outlet: Universal (Requires Custom End Tanks)
• Manufacturer Part Number: CCR2311