Enginetech BC258J100 1.00mm Undersize Main Bearing Set for 1982-1995 Toyota 2.4L I4 – Complete OEM-Spec Main Bearing Set

Description

Enginetech BC258J100 is a 1.00mm undersize main bearing set for 1982-1995 Toyota 2.4LI4 engines.

Important Notes:

• Sized for crankshaft main journals machined 1.00mm 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.
• From 3/82. Thrust washers not Included use TW1133.
• From 4/84. Thrust washers included.

Complete main bearing set covering all main journals for the I4 application – one set required per engine.

Fitment:

• 1982-1982 Toyota Corona 2.4L Noneci I4
• 1982-1983 Toyota Celica 2.4L Noneci I4
• 1983-1985 Toyota Celica 2.4L Noneci I4
• 1984-1995 Toyota 4Runner 2.4L Noneci I4
• 1984-1995 Toyota Pickup 2.4L Noneci I4
• 1985-1988 Toyota 4Runner 2.4L Noneci I4
• 1985-1988 Toyota Pickup 2.4L Noneci 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 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.