Enginetech BC1028STD is a standard size main bearing set for 2007-2021 Toyota, Lexus 4.6L-5.7L 303-345ci V8 engines.
Important Notes:
- Standard size - for standard (unmachined) crankshaft main journals only. Measure journal diameter before installation to confirm fit.
- 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 | BC1028STD |
| Bearing Size | Standard |
| Quantity Per Set | 5 main bearings per set |
| Engine | 4.6L-5.7L 303-345ci V8 |
| Year Range | 2007-2021 |
| Makes | Lexus, Toyota |
| Country of Origin | TW |
| Weight | 0.75 lbs |
| UPC | 707474000000 |
| OEM Cross-Refs | Topline:MBTO50, Safety Auto Parts Corp:BM15-122, MAHLE:MS-2365A, DNJ:MB978 |
Complete main bearing set covering all main journals for the V8 application - one set required per engine.
Fitment:
- 2007-2017 Lexus LS460 4.6L Noneci V8
- 2007-2019 Toyota Tundra 5.7L 345ci V8
- 2008-2011 Lexus GS460 4.6L Noneci V8
- 2008-2011 Lexus LX570 5.7L 345ci V8
- 2013-2013 Lexus LX570 5.7L 345ci V8
- 2008-2011 Toyota Land Cruiser 5.7L 345ci V8
- 2013-2019 Toyota Land Cruiser 5.7L 345ci V8
- 2008-2014 Lexus LS600h 5.0L Noneci V8
- 2008-2019 Toyota Sequoia 5.7L 345ci V8
- 2009-2014 Lexus IS F 5.0L 303ci V8
- 2009-2018 Toyota Sequoia 5.7L 345ci V8
- 2009-2019 Toyota Tundra 5.7L 345ci V8
- 2010-2012 Toyota Sequoia 4.6L Noneci V8
- 2010-2018 Toyota Tundra 4.6L Noneci V8
- 2010-2021 Lexus GX460 4.6L Noneci V8
- 2015-2021 Lexus RC F 5.0L 303ci V8
- 2016-2020 Lexus GS F 5.0L 303ci V8
- 2018-2021 Lexus LC500 5.0L 303ci V8
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.
