What does the +0.25mm size mean for these main bearings?

The +0.25mm designation means these bearings are 0.25mm larger in diameter than standard size. This is used when the engine's crankshaft has been machined down by 0.25mm during an engine rebuild to correct wear or damage.

What is the material of these main bearings?

These main bearings feature a bimetal construction with an aluminum base. This material is chosen for its ability to handle the high loads and operating temperatures within the engine's main bearing journals.

Are these bearings a direct replacement for the original main bearings?

These are a direct replacement main bearing set for the specified Honda Passport models and Isuzu 4ZE1 engine, provided the crankshaft has been machined to the +0.25mm undersize. Always confirm your crankshaft's journal size before ordering.

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Est. 1957

Specifications

Brand: King Engine Bearings
Part #: MB5586AM1.25
UPC: 611500418839

King Engine Bearings Isuzu 4Ze1 Sohc 8V (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Isuzu 4Ze1 Sohc 8V (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-isuzu-4ze1-sohc-8v-size-0-25mm-main-be-t14-770866
Price: 39.14 USD
Availability: BackOrder

$39.14

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Fits 1994-1996 Honda Passport. King Engine Bearings main bearing set for the Isuzu 4ZE1 engine. These are 0.25mm undersize for engine rebuilding.

Key Features

Fits 1994-1996 Honda Passport.
Main bearing set for the Isuzu 4ZE1 SOHC 8V engine.
Constructed with a bimetal aluminum base.
Main bearings are +0.25mm undersize, suitable for machined crankshafts.

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About this part

Product Details

If you're rebuilding the bottom end of your 1994-1996 Honda Passport's Isuzu 4ZE1 engine, a fresh set of main bearings is crucial. These bearings sit between the crankshaft and the engine block, supporting the rotating assembly and ensuring smooth operation. This set from King Engine Bearings is specifically made for the 4ZE1 SOHC 8V engine.

These main bearings are constructed with a bimetal aluminum base, which is a common and effective material for handling the loads and temperatures found in an engine's main bearing journals. They are also sized at +0.25mm, meaning they are 0.25mm larger in diameter than standard. This is important when the crankshaft has been machined and ground down to a specific undersize during an engine rebuild to correct wear or damage. Using the correct undersize bearing ensures proper oil clearance and load support.