What is the size of these main bearings?

These are standard size (STD) main bearings. They are designed to replace the original bearings without needing any machining, assuming the crankshaft journals are within factory specifications.

What material are these bearings made from?

The bearings are made from a bi-metal aluminum material with a lead-free composite layer. This construction is well-suited for the load requirements of many Isuzu engines.

Does this set include everything needed for installation?

This is a main bearing set, meaning it includes the bearings themselves. You will typically need to purchase a separate engine gasket set and potentially assembly lube for proper installation. Always refer to your vehicle's service manual for complete installation procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5559AM
UPC: 611500204401

King Engine Bearings Isuzu 4ZB1 (Size STD) Main Bearing Set

Name: King Engine Bearings Isuzu 4ZB1 (Size STD) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-isuzu-4zb1-size-std-main-bearing-set-t14-367928
Price: 50.12 USD
Availability: BackOrder

$50.12

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Fits 1986-1995 Isuzu Pickup. King Engine Bearings STD Main Bearing Set. Well-built aluminum bearings for your engine.

Key Features

Fits 1986-1995 Isuzu Pickup, 1989-1993 Isuzu Amigo, 1985-1989 Isuzu Impulse, and 1986-1987 Isuzu Trooper.
Standard (STD) size main bearing set.
Constructed with a bi-metal aluminum material.
Features a lead-free, environmentally safe composite.
Suitable for low to medium-load engines.

⚠️ 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

If you're rebuilding the engine in your 1986-1995 Isuzu Pickup, these standard size main bearing sets from King Engine Bearings are a solid option. King has been specializing in engine bearings since 1960, focusing on supplying well-built components for a variety of applications.

This particular set uses a bi-metal aluminum material, which is ideal for low to medium-load engines like those found in many Isuzu trucks. The lead-free composite construction is also environmentally safe. These bearings are designed to fit right and perform reliably in your engine's bottom end.