What does the +0.25mm size mean for this bearing set?

The +0.25mm designation indicates that these bearings are sized to fit crankshaft journals that have been machined down by 0.25mm. This is common during engine rebuilds when the crankshaft needs to be resurfaced due to wear or damage.

What type of engine is this bearing set best suited for?

This bearing set is made with a lead-free composite and bi-metal aluminum material, making it ideal for engines that operate under low to medium loads. It's a solid option for many standard engine rebuilds where extreme performance isn't the primary goal.

Does this bearing set come with all the necessary components for installation?

This product is a set of main bearings. While it includes the bearings themselves, it does not typically include engine assembly lubricant, sealants, or other installation hardware. Always refer to your vehicle's service manual for a complete list of required parts and procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5559AM0.25
UPC: 611500204418

King Engine Bearings Isuzu 4Zb1 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Isuzu 4Zb1 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-isuzu-4zb1-size-0-25mm-main-bearing-se-t14-770829
Price: 50.12 USD
Availability: BackOrder

$50.12

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Fits 1986-1995 Isuzu Pickup. King Engine Bearings main bearing set, size +0.25mm. Features lead-free composite for low to medium-load engines.

Key Features

Fits 1986-1995 Isuzu Pickup, 1989-1993 Isuzu Amigo, 1985-1989 Isuzu Impulse, and 1986-1987 Isuzu Trooper.
Main bearing set with a +0.25mm size for use with machined crankshafts.
Constructed with a bi-metal aluminum material.
Features a lead-free, environmentally safe composite surface.
Designed for low to medium-load engine applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

King Engine Bearings has been a specialist in engine bearings since 1960, focused on supplying well-built bearings to the market. This main bearing set is specifically for Isuzu Pickup models from 1986-1987 and 1989-1995, as well as other compatible Isuzu vehicles. It's designed to be a direct replacement for your worn-out main bearings, helping to ensure proper crankshaft support and oil clearance.

This particular set is sized at +0.25mm, meaning it's intended for use when the crankshaft journals have been machined down by that amount during an engine rebuild. The bearings are constructed from a bi-metal aluminum material and feature a lead-free, environmentally safe composite. This design is ideal for engines that operate under low to medium loads, providing reliable performance for these applications.