King MB5259XPCSTDX XPC pMaxKote Main Bearing Set STDX for Honda/Acura A/B/K

Vehicle Fitment

• 1990-2001 Acura Integra (DA/DB/DC, A-Series / B-Series engines)
• 1997-2001 Acura Integra Type R (DC2, B18C5)
• 2002-2006 Acura RSX / RSX Type-S (DC5, K20A2/K20Z1)
• 2004-2014 Acura TSX (CL9/CU2, K24A2/K24Z3)
• 2006-2011 Acura CSX (K20Z2)
• 2007-2012 Acura RDX (TB1/TB2, K23A1 Turbo)
• 1994-1997 Honda Civic del Sol VTEC (EG2, B16A)
• 1999-2000 Honda Civic Si (EK4/EK9, B16A)
• 2002-2011 Honda Civic Si (EP3/FD2/FN2/FA5, K20A2/K20Z3)
• 1997-2009 Honda CR-V (RD1/RD4/RE3/RE4, B20B/K24A)
• 2015-2019 Honda CR-V (RW/RT, K24W2)
• 2003-2012 Honda Accord (CL7/CL9/CP1/CP3, K24A/K24Z2/K24Z3)
• 2003-2011 Honda Element (YH2, K24A)

Fitment Notes

• STDX size - slightly tighter than standard (STD) for optimal oil clearance; see King's application guide to confirm STD vs. STDX for your specific build
• Compatible engine blocks include: B17A1, B18A1, B18B1, B18C1, B18C5, K20A2, K20A3, K20Z1, K24A, and related A/B/K-Series variants
• Set includes 5 pairs - one complete main bearing set
• pMaxKote polymer coating does not add thickness - maintains original precision wall dimensions
• Professional engine builder or machinist installation required

Features

• XPC-Series pMaxBlack™ tri-metal structure with factory-applied pMaxKote™ ceramic nano-composite polymer coating for a fourth layer of protection
• pMaxKote coating provides superior seizure, cavitation, and wear resistance without altering the bearing's precision wall thickness
• pMaxBlack overlay is 24% harder than conventional tri-metal race bearings - rated to 10,200 PSI overlay load capacity
• 17% greater fatigue resistance compared to standard tri-metal bearings
• King Bull's Eye Tolerance™ Technology delivers wall thickness variation of ±0.0001" - tighter than conventional ±0.00025" industry standard
• Greater consistency from bearing to bearing reduces need for multiple sets to achieve target oil clearance
• Grooved upper shells for proper oil distribution; full set designed as one-set fitment solution
• Manufactured entirely in-house - raw material to polymer coating to final sorting under one roof

Specifications

• Part Type: Main Bearing Set (5 Pairs / 10 Bearings)
• Engine Compatibility: Honda / Acura A-Series, B-Series, K-Series
• Bearing Series: XPC (pMaxBlack Tri-Metal + pMaxKote Polymer Coating)
• Overlay Load Capacity: 10,200 PSI
• Size: STDX (Slightly tighter than STD - confirm with King application guide)
• Wall Thickness Tolerance: ±0.0001"
• Application: High-Performance Street / Race Engine Build

Included Components

• 5x Pairs of XPC pMaxKote main bearings (10 individual half-shells, grooved uppers)

Product Description

The King MB5259XPCSTDX is the XPC-Series pMaxKote main bearing set in STDX size for Honda and Acura A-Series, B-Series, and K-Series engines. It combines King's pMaxBlack™ tri-metal structure - a hardened Babbitt overlay 24% stronger than conventional race bearings - with a factory-applied pMaxKote™ ceramic nano-composite polymer coating. This fourth layer of protection enhances wear resistance, seizure resistance, and protection during marginal lubrication events without adding any thickness to the bearing, preserving the original precision wall dimensions critical for consistent oil clearance.

The STDX size is slightly tighter than the standard STD dimension and is used in builds where a snugger bearing-to-journal fit is needed to achieve target oil clearance - confirm the appropriate size for your application using King's online fitment guide. King's Bull's Eye Tolerance™ Technology holds wall thickness variation to ±0.0001", well beyond the industry standard, meaning greater consistency from bearing to bearing and fewer sets needed to nail your clearances. Professional installation by a qualified engine machinist is required.