What does the +0.50mm sizing mean for these bearings?

The +0.50mm designation indicates that these bearings are slightly larger than standard size. They are intended for use when the engine's crankshaft has been machined down by 0.50mm to correct wear or runout. This ensures a proper fit and oil clearance on the machined journal.

What is the construction material of these main bearings?

These main bearings are made with a bimetal construction, featuring an aluminum base. This type of material is chosen for its good bearing properties, including heat dissipation and compatibility with crankshaft surfaces.

Do I need to purchase anything else to install these bearings?

When installing main bearings, it's crucial to also have a new crankshaft seal and potentially main bearing cap bolts if the originals are stretched or damaged. Always refer to the manufacturer's specific installation instructions for your engine model.

Specifications

Brand: King Engine Bearings
Part #: MB5195AM0.5
UPC: 611500167416

King Engine Bearings Mitsubishi G25B/4G54/4G53 (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Mitsubishi G25B/4G54/4G53 (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-g25b-4g54-4g53-size-0-50mm--t14-770526
Price: 80.50 USD
Availability: BackOrder

$80.50

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King Engine Bearings main bearing set for Mitsubishi G25B, 4G54, 4G53 engines. Size +0.50mm. For engine rebuilds.

Key Features

Fits a wide range of vehicles including Dodge, Chrysler, and Mitsubishi models.
Main bearing set for Mitsubishi G25B, 4G54, and 4G53 engines.
Sized at +0.50mm for use with a machined crankshaft.
Constructed with a bimetal (aluminum base) material for reliable performance.
Supports the crankshaft, ensuring proper engine balance and alignment.

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About this part

Product Details

If you're rebuilding the bottom end of your Mitsubishi G25B, 4G54, or 4G53 engine, a fresh set of main bearings is essential. These bearings sit in the engine block and support the crankshaft, ensuring it spins smoothly and stays properly aligned. This set is specifically sized at +0.50mm, meaning it's intended for crankshafts that have been machined to that dimension during an overhaul.

King Engine Bearings uses a bimetal construction with an aluminum base for these main bearings. This design helps manage heat and provides a solid surface for the crankshaft to rotate against. They fit a wide range of vehicles, including models like the Dodge Ram 50, Mitsubishi Mighty Max, and Chrysler LeBaron, making them a popular choice for many engine projects.