Enginetech BC1048.25 is a 0.25mm undersize main bearing set for 2008-2020 Toyota, Pontiac, Lexus, Scion 1.8L 110ci I4 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.
| Part Number | BC1048.25 |
| Bearing Size | 0.25mm Undersize |
| Quantity Per Set | 5 main bearings per set |
| Engine | 1.8L 110ci I4 |
| Year Range | 2008-2020 |
| Makes | Lexus, Pontiac, Scion, Toyota |
| Country of Origin | TW |
| Weight | 0.75 lbs |
| UPC | 707474000000 |
| OEM Cross-Refs | King Engine Bearings:MB5656SI, Topline:MBTO55, Safety Auto Parts Corp:BM15-114, DNJ:MB928 |
Complete main bearing set covering all main journals for the I4 application - one set required per engine.
Fitment:
- 2008-2014 Scion xD 1.8L 110ci I4
- 2009-2009 Toyota Corolla 1.8L 110ci I4
- 2013-2015 Toyota Corolla 1.8L 110ci I4
- 2009-2010 Pontiac Vibe 1.8L 110ci I4
- 2009-2013 Toyota Corolla 1.8L 110ci I4
- 2009-2013 Toyota Matrix 1.8L 110ci I4
- 2010-2017 Toyota Prius 1.8L 110ci I4
- 2011-2013 Lexus CT200h 1.8L 110ci I4
- 2012-2017 Toyota Prius V 1.8L 110ci I4
- 2014-2020 Toyota Corolla 1.8L 110ci I4
- 2016-2018 Toyota Corolla 1.8L 110ci I4
- 2017-2020 Toyota Prius Prime 1.8L 110ci I4
- 2018-2020 Toyota Prius 1.8L 110ci I4
- 2019-2020 Toyota Prius AWD-e 1.8L 110ci I4
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 likely lead/nickel — verify, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
