Toyota 4U-GSE (Scion FR-S 2013–2016, Toyota 86 2017+) -- FA20 platform
Fitment Notes
Main crankshaft bearings only; rod bearings sold separately.
Standard size (STD); not compatible with stroker/crankshaft ground later than OEM tolerance.
Requires correct OEM or aftermarket size journals; oversize version is MB5745XPGC.026.
Features
pMaxKote ceramic-nano composite coating enhances wear resistance and seizure protection.
Alloy construction with King’s pMaxBlack overlay and tri-metal substrate for strength and durability.
Unique lug-free oil-pad design ensures full oil film coverage and optimized lubrication.
Factory wall thickness maintained--no modifications needed for crank geometry.
High load capacity (17,000 psi) and hardness (~115 HV) for racing-grade reliability.
U-groove and oil-slot improve oil flow and reduce cavitation risk under high RPM.
Specifications
Part Number: MB5745XPGC
Type: Crankshaft main bearing set, standard size
Material: Tri-metal with pMaxBlack overlay & pMaxKote coating
Load Capacity: 17,000 psi
Hardness: ~115 HV
Oil Management: U-groove and integrated oil slots
Wall Thickness: OEM (no size change)
Warranty: 12 months
Included Components
Set of crankshaft main bearings (5 shells: positions 1, 2, 3, 4, center thrust)
Product Description
The King MB5745XPGC main bearing set delivers race-bred reliability for FA20/4U-GSE engines used in Subaru BRZ, Toyota 86, Scion FR-S, and FA20 WRX models. Featuring a tri-metal construction with a proven pMaxBlack overlay and advanced pMaxKote ceramic-nano coating, these bearings boost durability and resistance to wear and seizure--particularly under high-load or high-RPM conditions.
King’s innovative lug-free design improves oil film retention while U-groove and oil-slots ensure consistent lubrication across the split-main and thrust bearings. Designed to OEM tolerances, no crankshaft modifications are necessary. Rated to 17,000 psi load and hardened to ~115 HV, this set meets the demands of performance builds while retaining standard wall thickness and journal fit. Included in the kit are five main shells needed to replace the crankshaft bearings reliably.
*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.
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Any returns received installed, mounted, used or missing components will be subject to return fee's.
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