King MB5734XPCSTDX STDX XPC pMaxKote Main Bearings Ford Coyote 5.0L 302 CID V8

Vehicle Fitment

• 2011-2026 Ford Mustang GT (Base, Premium, California Special, RWD, 5.0L V8 Coyote Gen 1/2/3/4)
• 2012-2013 Ford Mustang Boss 302 (Base, Laguna Seca, RWD, 5.0L V8 Coyote)
• 2011-2026 Ford F-150 (XL, XLT, Lariat, King Ranch, Platinum, Limited, STX, FX2, FX4, RWD/4WD, 5.0L V8 Coyote Gen 1/2/3/4)

Fitment Notes

• Fits Ford 302 CID (5.0L) Coyote V8 engines across all four generations (Gen 1: 2011-2014 / Gen 2: 2015-2017 / Gen 3: 2018-2023 / Gen 4: 2024-2026) - confirm generation before ordering
• STDX size - shells are 0.001" (0.025mm) thinner than standard (STD), providing 0.001" of additional total oil clearance on a standard-diameter crankshaft without grinding; consult your machine shop before selecting this size
• XPC Series = pMaxBlack tri-metal race construction + factory-applied pMaxKote nano-composite ceramic polymer coating; pMaxKote adds no additional wall thickness
• 1/2 groove design - upper shells half-grooved; thrust washers included in set
• Does not fit the supercharged 5.0L GT500 Shelby (Voodoo/Predator) - verify engine build specification before ordering
• For crankshafts at factory journal diameter needing standard clearance, use MB5734XPC (STD); for ground crankshafts, use the appropriate undersize variant

Features

• XPC Series pMaxBlack tri-metal overlay is 24% harder than conventional race bearings, rated up to 10,200 PSI load capacity
• pMaxKote nano-composite ceramic polymer coating adds a fourth layer of seizure, cavitation, and wear resistance with zero added wall thickness
• STDX extra clearance eliminates the need to buy multiple sets to dial in oil clearance - a single set delivers the target clearance on standard-diameter journals
• SecureBond micro-etch adhesion process prevents delamination under sustained high-RPM and thermal cycling
• Narrowed design accommodates large-radius aftermarket and OE forged steel crankshafts in Coyote performance builds
• EccentriX eccentricity profiling ensures a stable hydrodynamic oil film across all 5 main journals
• Bull's Eye Tolerance wall thickness held to ±0.0001" for consistent clearance shell-to-shell
• Lead-free construction meets current environmental compliance standards

Specifications

• Part Number: MB5734XPCSTDX
• Size: STDX (Standard with 0.001" / 0.025mm Extra Oil Clearance)
• Series: XPC (pMaxBlack Tri-Metal + pMaxKote Nano-Composite Polymer Coating)
• Engine: Ford 302 CID / 5.0L Coyote V8 (DOHC, 32-Valve, Ti-VCT)
• Additional Clearance vs. STD: 0.001" (0.025mm) total
• Groove: 1/2 groove (upper shells half-grooved)
• Overlay Load Capacity: Up to 10,200 PSI
• Wall Thickness Tolerance: ±0.0001"
• Position: Crankshaft Main (Upper and Lower shells)
• Quantity: 5 pairs (10 shells total - full V8 main bearing set)
• Available Sizes: STD / STDX / .026mm / +0.25mm / +0.50mm

Included Components

• 5x Upper Main Bearing Shells
• 5x Lower Main Bearing Shells
• 2x Thrust Washers

Product Description

The King MB5734XPCSTDX is the STDX variant of the top-spec XPC Series crankshaft main bearing set for the Ford 302 CID Coyote 5.0L V8, covering the Mustang GT, Boss 302, and F-150 5.0L from 2011 through 2026. The XPC designation combines King's pMaxBlack tri-metal structure - 24% harder than conventional race bearings at up to 10,200 PSI - with the factory-applied pMaxKote nano-composite ceramic polymer coating for maximum seizure and cavitation resistance without any added wall thickness.

The STDX size designation means each shell is produced 0.0005" thinner than standard on each side, providing 0.001" of additional total oil clearance on a factory-diameter crankshaft. This eliminates the need to trial multiple bearing sizes to achieve a target clearance - builders running high-output Coyote builds who prefer slightly looser-than-stock main clearance can achieve it in a single set. Thrust washers are included. Always consult your machine shop or engine builder to confirm the correct size for your specific clearance target before ordering.