Enginetech BC170J.25 is a 0.25mm undersize main bearing set for 2007-2021 Ford, Lincoln, Mercury, Mazda 3.5L/3.7L 213-227ci V6 engines.
Important Notes:
- Sized for crankshaft main journals machined .25mm undersize. Measure journal diameter before installation - installing on the wrong journal size will cause immediate clearance failure.
- Always replace main bearings as a complete set. Never mix new bearings with used bearings - uneven wear and clearance differences will cause premature failure.
- Thrust washers included.
| Part Number | BC170J.25 |
| Bearing Size | 0.25mm Undersize |
| Quantity Per Set | 4 main bearings per set |
| Engine | 3.5L/3.7L 213-227ci V6 |
| Year Range | 2007-2021 |
| Makes | Ford, Lincoln, Mazda, Mercury |
| Country of Origin | US |
| Weight | 1.25 lbs |
| UPC | 707474000000 |
| OEM Cross-Refs | ACL:4M4382A, Clevite:MS-2302A, FEL-PRO:7445MA, King Engine Bearings:MB4549SI, MAHLE:MS-2302A |
Complete main bearing set covering all main journals for the V6 application - one set required per engine.
Fitment:
- 2007-2007 Mazda CX-9 3.5L 213ci V6
- 2007-2010 Lincoln MKX 3.5L 213ci V6
- 2007-2014 Ford Edge 3.5L 213ci V6
- 2008-2009 Ford Taurus X 3.5L 213ci V6
- 2008-2009 Mercury Sable 3.5L 213ci V6
- 2008-2012 Ford Taurus 3.5L 213ci V6
- 2008-2014 Mazda CX-9 3.7L 227ci V6
- 2009-2012 Ford Flex 3.5L 213ci V6
- 2009-2012 Lincoln MKS 3.7L 227ci V6
- 2009-2013 Mazda 6 3.7L 227ci V6
- 2010-2012 Ford Fusion 3.5L 213ci V6
- 2010-2012 Lincoln MKT 3.7L 227ci V6
- 2010-2013 Lincoln MKT 3.5L 213ci V6
- 2010-2017 Ford Taurus 3.5L 213ci V6
- 2010-2019 Ford Flex 3.5L 213ci V6
- 2011-2013 Ford Edge 3.7L 227ci V6
- 2011-2013 Ford F-150 3.7L 227ci V6
- 2011-2014 Ford F-150 3.5L 213ci V6
- 2011-2017 Ford Explorer 3.5L 213ci V6
- 2011-2017 Ford Mustang 3.7L 227ci V6
- 2013-2013 Lincoln MKX 3.7L 227ci V6
- 2015-2015 Lincoln MKX 3.7L 227ci V6
- 2013-2014 Ford Police Interceptor Sedan 3.5L 213ci V6
- 2013-2014 Ford Taurus 3.5L 213ci V6
- 2013-2016 Lincoln MKS 3.7L 227ci V6
- 2013-2016 Lincoln MKZ 3.7L 227ci V6
- 2013-2017 Ford Flex 3.5L 213ci V6
- 2013-2017 Ford Police Interceptor Sedan 3.7L 227ci V6
- 2013-2017 Lincoln MKT 3.7L 227ci V6
- 2014-2019 Ford Police Interceptor Utility 3.5L 213ci V6
- ...and 15 additional applications
Enginetech main bearings are engineered to OEM specifications, drawing on over 40 years of engine rebuilding expertise to deliver the precise clearance, crush, and eccentricity required for long-term durability under both stock and moderate-performance loads. Each set is application-specific: materials, wall thickness, oil clearance, and surface finish are all matched to the crankshaft main journal geometry and operating loads of the engine family it serves. Main bearings are a wear component and must be selected to match the crankshaft main journal size - bearings sized for standard journals will not seat correctly on undersize-machined journals and vice versa, so verify your journal measurement with a precision micrometer before ordering or installing. Always replace main bearings as a complete set. Mixing new bearings with used bearings produces uneven oil clearance across the crankshaft and accelerates wear on the freshly installed bearings - the small cost of a complete set is insurance against premature failure on the bearings you just paid to install. Enginetech documents every set with clear application-specific notes, journal-size designation, and cross-references so the right part lands on the bench the first time.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
