Enginetech BC186J25 Main Bearing Set Ford 6.7L 406 Powerstroke Diesel .025 Oversize

The Enginetech BC186J25 is a .025" (0.635mm) oversize crankshaft main bearing set designed for the Ford 6.7L Power Stroke diesel engine (406 CID), covering 2011–2020 applications. This oversize set is intended for use with crankshafts that have been reground or turned down to the corresponding undersize, restoring proper oil clearances during an engine rebuild.

Key Features:

• .025" oversize inner diameter — designed for use with a reground crankshaft at the matching undersize
• Available in the complete BC186J family alongside standard (BC186JSTD) and .050" oversize (BC186J50)
• Advanced aluminum-silicon alloy construction — superior performance and durability compared to traditional copper/tin/lead tri-metal bearings
• Precision-controlled parting line chamfers cut at the correct angle for optimal oil bleed-through without sacrificing oil pressure
• Manufactured to tight thickness tolerances for consistent and correct oil clearances
• Sold as a complete main bearing set
• Cross-references: MS2350A, LC3Z-6D309-B (OE Ford Motorcraft oversize reference)

Enginetech main and rod bearings have been a trusted choice among professional engine rebuilders for over 25 years. The BC186J25 delivers a precision-fit solution for rebuilt Ford 6.7L Power Stroke diesels where the crankshaft has been turned, ensuring a reliable foundation for long engine life after overhaul.