Fits select 1971-2005 Mitsubishi, Dodge, Hyundai, Eagle, and Plymouth models equipped with the 6-bolt 4G63 or 4G64 engine, including 1st Gen DSM applications.

King XP Series main bearings are engineered for high-performance environments where standard OE-style bearings may lack the capacity for increased loads. These performance bearings are specifically designed for racing and forced induction builds that demand superior fatigue resistance. The STDX sizing provides .001" of additional oil clearance compared to standard bearings, facilitating improved oil flow and thermal management in high-RPM conditions.

• Manufacturer Part Number: MB5227XPSTDX
• Engine Compatibility: Mitsubishi 4G63 / 4G64 (6-Bolt Crankshaft)
• Bearing Series: XP Series Performance
• Size: STDX (Standard with .001" extra oil clearance)
• Construction: High-load tri-metal performance material

Fits select 1971-2005 Mitsubishi, Dodge, Eagle, Hyundai, and Plymouth models with 4G63 or 4G64 6-bolt engines.

The King Engine Bearings performance main bearing set is engineered for high-load engine builds and precision performance. Specifically designed for the 6-bolt crankshaft configuration found in 1st Gen DSM and various Mitsubishi-powered applications, this set provides the durability and precise oil clearances required for reliable engine operation under stress. These bearings are a direct replacement for worn OE components, offering superior fatigue resistance during high-RPM or turbocharged use.

• Specifically for 4G63 and 4G64 6-bolt crankshaft engines
• Designed for high-performance rebuilds and increased durability
• Maintains consistent oil film and critical clearances
• Size: STD (Standard)
• Manufacturer Part Number: MB5227XP

Fits select 1993-2002 Ford Probe, Mazda 626, and Mazda MX-6 (FS-DE / FP / FS L4 DOHC 16V).

King Engine Bearings main bearing sets are engineered for precise oil clearance and reliable crankshaft support. This standard size set is designed to replace worn factory bearings, restoring engine geometry and ensuring durable performance for L4 DOHC 16-valve engines. Manufactured to rigorous tolerances, the MB5171AM set provides the consistent surface quality required for high-stress automotive environments.

• Manufacturer Part Number: MB5171AM
• Bearing Size: STD (Standard)
• Engine Families: Mazda FS-DE L4, FP L4, FS L4 DOHC 16-Valve
• Application: Full crankshaft main bearing set

Fits select 1973-2001 Honda Accord, Civic, Odyssey, and Prelude, Acura CL, and Isuzu Oasis.

This King Engine Bearings crankshaft main bearing set (MPN MB5168XPSTDX) is engineered for high-performance engine builds utilizing 50mm journals. As part of King's performance line, these bearings are designed to handle higher loads and RPMs than standard OE components. The STDX sizing provides standard extra clearance, which is critical for maintaining an optimal oil film in racing applications where thermal expansion and high-speed lubrication are primary concerns.

• Manufacturer Part Number: MB5168XPSTDX
• Bearing Size: STDX (Standard Extra Clearance)
• Journal Diameter: 50mm
• Material: Performance-grade tri-metal construction
• Configuration: Complete set for one crankshaft

Fits select 1973-2001 Acura CL, Honda Accord, Civic, Odyssey, Prelude, and Isuzu Oasis (F22A1 / F22A6 / F22B1 / F22B2 / F22B6).

Maintain precise crankshaft alignment and critical oil pressure with the King Engine Bearings MB5168AM Main Bearing Set. Designed as a direct replacement for worn factory bearings, this standard-size (STD) set ensures the tight tolerances required for high-mileage refreshes or engine rebuilds. These bearings are engineered to provide superior load distribution and heat dissipation, protecting your engine's bottom end during operation.

• Standard size (STD) for original equipment crankshaft dimensions
• High-quality materials designed for consistent oil film retention and reduced friction
• Precision-engineered for F-series and vintage Honda engine architectures
• Manufacturer Part Number: MB5168AM

Fits select 1991-2004 Toyota 4Runner, Previa, T100, and Tacoma models equipped with 1RZ, 2RZ, or 3RZ engines.

Engineered for consistent oil clearance and high-load durability, this King Engine Bearings crankshaft main bearing set is a critical component for engine refreshes or performance builds. These bearings are designed to meet or exceed OE tolerances, ensuring proper lubrication and rotational stability for the crankshaft. As part of the XP series, the MB5089XP features advanced metallurgy to handle the increased cylinder pressures found in modified or high-mileage Toyota 4-cylinder engines.

• Manufacturer Part Number: MB5089XP
• Quantity: Set of 5 (complete main journal coverage)
• Engine Compatibility: Toyota 1RZ, 2RZ, and 3RZ series
• Construction: High-strength tri-metal material for superior load capacity

Fits select 1991-2004 Toyota 4Runner, Previa, T100, and Tacoma models.

Maintain the health of your engine's bottom end with this King Engine Bearings crankshaft main bearing set. Specifically engineered for the Toyota 1RZ engine, these standard-size (STD) bearings are designed to restore proper oil pressure and ensure smooth crankshaft rotation. This set replaces worn factory bearings with high-precision components that meet or exceed OE tolerances, making them ideal for standard engine overhauls and rebuilds.

• Manufacturer Part Number: MB5089AM
• Engine Application: Toyota 1RZ
• Bearing Size: STD (Standard)
• Bearing Type: AM-Series Main Bearing Set

King Engine Bearings are known for their consistent metallurgy and precise fitment, ensuring reliable performance in both passenger and commercial applications. This set provides the necessary shells for a complete crankshaft main journal service.

Fits select 1997-2026 Chevrolet, GMC, Cadillac, Hummer, Buick, and Isuzu vehicles equipped with LS-based V8 engines (including LS1, LS3, and LS6).

The King Engine Bearings XP-Series performance main bearing set is engineered for high-output competition engines that demand extreme precision and durability. This MB5013XPSTDX set is designed specifically for the GM LS platform, providing the structural integrity required to handle high RPMs and increased cylinder pressures. The STDX sizing provides standard journal diameter with .001-inch extra oil clearance, making it a critical choice for engine builders who need to optimize oil flow and thermal management in high-performance or racing applications.

• Manufacturer Part Number: MB5013XPSTDX
• Series: XP Performance
• Bearing Size: STDX (Standard with .001" Extra Clearance)
• Material: Advanced pMax Black tri-metal construction for superior load capacity
• Engine Compatibility: LS1, LS6, LS3, and related GM LS-series blocks
• Application: Replaces factory main bearings with high-tolerance performance alternatives
• Quantity: Complete set for one engine block

Fits select 1997-2020 Chevrolet, GMC, Cadillac, Buick, Hummer, Isuzu, and Avanti vehicles equipped with LS-series engines including LS1, LS2, LS6, and other Gen III/IV variants.

The King Engine Bearings MB5013XPC XP-Series performance main bearing set is engineered for high-load, high-RPM racing and performance applications. These bearings feature King’s exclusive pMaxKote, a nano-composite polymer coating designed to reduce friction and minimize wear during cold starts or momentary oil starvation. This standard size (STD) set uses a tri-metal copper-lead construction to handle the extreme cylinder pressures associated with modified LS engines.

• Manufacturer Part Number: MB5013XPC
• Series: XP-Series Performance
• Coating: pMaxKote nano-composite polymer
• Size: STD (Standard)
• Construction: Tri-metal copper-lead
• Compatible with factory main journals
• Engineered for superior fatigue resistance and load capacity

Fits select 1997-2026 GM vehicles, including Chevrolet Camaro, Corvette, Silverado, GMC Sierra, Yukon, and Cadillac Escalade (LS1/LS3/LS6 and LS-based engines).

The King Engine Bearings XP-Series performance main bearing set is engineered for high-output engines that demand superior load-carrying capacity. Part of King's Racing line, the MB5013XP bearings feature a tri-metal construction designed to withstand the rigors of high-RPM operation and increased cylinder pressures. These bearings are a critical upgrade for performance street builds and dedicated track vehicles using the GM LS platform.

• Series: XP-Series Performance
• Size: STD (Standard)
• Material: High-strength tri-metal
• MPN: MB5013XP
• Quantity: Full Main Bearing Set

Each set is manufactured with strict tolerances to ensure consistent oil clearance and reliable lubrication across the crankshaft journals. Whether you are refreshing a high-mileage LS1 or building a forced-induction LS3, King XP-Series bearings provide the durability required for extreme automotive environments.

Fits select 2011-2019 Ford Fiesta and 2013-2014 Ford Fusion models (1.25i Zetec).

This King Engine Bearings crankshaft main bearing set (MB5009AM) provides a precision-engineered solution for engine rebuilds and routine maintenance. Designed to meet or exceed OE tolerances, these bearings are manufactured to provide consistent oil clearances and reliable thermal stability for the Zetec engine's bottom end. Whether you are performing a standard refresh or a complete engine overhaul, these main bearings ensure the crankshaft remains properly supported and aligned.

• Manufacturer Part Number: MB5009AM
• Engine Series: 1.25i Zetec
• Provides critical support for the crankshaft and maintains optimal oil pressure
• High-quality construction designed for durability and consistent performance

Vehicle Fitment:

• 2011-2019 Ford Fiesta (S, SE, SEL, SES, ST Line, Titanium)
• 2013-2014 Ford Fusion (SE)

Designed for the Ford 3.5L V6 EcoBoost engine, this King Engine Bearings Performance Main Bearing Set (MB4570MC) provides the durability and precision required for high-output engine builds. These bi-metal bearings are engineered to handle the increased cylinder pressures and thermal loads associated with turbocharged applications, making them an essential upgrade for both performance street use and track environments.

Constructed with King's specialized bi-metal material, these bearings offer superior fatigue resistance and load-carrying capacity compared to standard replacement parts. The set ensures consistent oil clearance across the main journals, maintaining critical oil film thickness and pressure during high-load operation. Whether you are performing a standard refresh or a full performance build, these bearings deliver the reliability needed to protect your rotating assembly.

• Fits Ford 3.5L V6 EcoBoost engines
• Performance bi-metal construction for enhanced fatigue strength
• Engineered to withstand high-RPM and high-load turbo conditions
• Maintains precise oil clearances and consistent oil pressure
• Manufacturer Part Number: MB4570MC

Fits select 2014-2019 Jeep Grand Cherokee, Ram 1500, and Ram 1500 Classic models with the 3.0L EcoDiesel (VM Motori A630/L630) engine. This King Engine Bearings main bearing set is engineered for precision engine rebuilds where the crankshaft journals have been ground to an undersized specification.

The +0.25mm (+.010") oversize allows you to restore critical oil clearances and maintain consistent oil pressure in high-torque diesel applications. Manufactured to exacting tolerances, these bearings ensure a proper fit within the engine block's main bores, providing a reliable surface for the rotating assembly during heavy load conditions.

• Manufacturer Part Number: MB4556SX0.25
• Engine Fitment: VM Motori A630 / L630 3.0L V6 EcoDiesel
• Bearing Size: +0.25mm Undersize
• Set Includes: Complete main bearing set for one engine
• Replaces worn OE bearings to restore proper crankshaft clearance

This King Engine Bearings Main Bearing Set (MB4556SX) is designed specifically for the VM Motori A630 and L630 3.0L EcoDiesel engines. Engineered to provide precise clearances and reliable crankshaft support, this set is a direct replacement for worn factory bearings in heavy-duty and daily driving applications. Fits select 2014-2019 Jeep Grand Cherokee, Ram 1500, and Ram 1500 Classic (3.0L).

• Manufacturer Part Number: MB4556SX
• Engine Compatibility: VM Motori A630 / L630 3.0L EcoDiesel
• Material: High-strength alloy for optimized load capacity and heat dissipation
• Fitment: Full set for main journal positions

Fits select 2007-2019 Ford, Lincoln, and Mazda vehicles (3.5L / 3.7L V6 engines) including F-150, Explorer, Mustang, and Taurus SHO.

This King Engine Bearings Main Bearing Set is engineered to provide reliable crankshaft support and consistent oil clearance for high-volume 3.5L and 3.7L V6 engines. As part of King's SI-series, these bearings are designed for OE-replacement and performance applications where precision fitment and durability are required to prevent premature engine wear.

• Manufacturer Part Number: MB4549SI
• Bearing Size: STD (Standard)
• Engine Compatibility: Ford 3.5L and 3.7L V6 (including EcoBoost variants)
• Direct replacement for worn factory main bearings
• Constructed for optimized oil flow and thermal fatigue resistance

Fits select 2007-2022 Mercedes-Benz, Dodge, and Freightliner models equipped with the OM642 V6 diesel engine (3.0L).

The King Engine Bearings Main Bearing Set (MB4532XA) provides the precision and durability required for bottom-end rebuilds on high-torque Mercedes-Benz diesel applications. These bearings are engineered to maintain consistent oil clearances and support the crankshaft under the heavy loads characteristic of the OM642 V6. This set is a direct replacement for engines requiring high-performance main bearing tolerances to ensure long-term engine reliability and reduced internal friction.

• Manufacturer Part Number: MB4532XA
• Compatible Engine Codes: OM 642.822, 642.836, 642.910, 642.920, 642.930, 642.970
• Includes complete set of main bearings for the engine block
• Designed for OE-quality fit and performance in Sprinter vans and luxury diesel sedans/SUVs

Vehicle Fitment Summary:

• 2007-2009 Dodge Sprinter 2500/3500
• 2007-2021 Freightliner Sprinter 2500/3500/3500XD
• 2010-2022 Mercedes-Benz Sprinter 2500/3500/3500XD
• 2007-2016 Mercedes-Benz E320, E350, GL320, GL350, ML320, ML350, R320, R350, S350 (Diesel)

Fits select 2003-2024 Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra models equipped with the 1GR-FE 4.0L V6 engine.

When rebuilding a Toyota 1GR-FE engine where the crankshaft journals have been machined, precision is critical for maintaining oil pressure and long-term reliability. This King Engine Bearings crankshaft main bearing set is engineered to +0.25mm specifications, providing the necessary thickness to compensate for a turned crankshaft while maintaining factory oil clearances.

• Manufacturer Part Number: MB4526SI0.25
• Engine Application: Toyota 1GR-FE 4.0L V6
• Bearing Size: +0.25mm Oversize
• Position: Crankshaft Main Bearings
• Kit Contents: Complete set of main bearings for one engine

Built for durability and consistent performance, these bearings are a direct choice for engine builders and specialists performing bottom-end overhauls on Toyota's 4.0L workhorse engine.

Fits select 2007-2024 Nissan 350Z, 370Z, GT-R and Infiniti EX, FX, G, M, Q, and QX series (VR38DETT and VQ engines).

King Engine Bearings' pMaxKote is a factory-applied nano-composite coating designed to enhance seizure resistance and reduce friction in high-performance environments. This coating is applied directly over the pMax Black tri-metal structure, providing a secondary layer of protection that maintains clearance while protecting against metal-to-metal contact and temporary oil starvation. These bearings are 0.25mm undersize, specifically engineered for engine builds where the crankshaft journals have been reground to restore surface integrity.

• Manufacturer Part Number: MB4524XPC0.25
• Product Series: pMaxKote Performance
• Size: 0.25mm Undersize
• Set Quantity: 8 Main Bearings
• Material: Tri-metal pMax Black with nano-composite overlay
• Application: Precision-engineered for high-load forced induction and naturally aspirated platforms