What is the difference between standard size and undersize bearings?

Standard size bearings are meant to be used when the crankshaft journals are still within their original factory dimensions. Undersize bearings, like 0.010" or 0.020" undersize, are used when the crankshaft has been machined (ground down) to remove wear or damage. This set is standard size, meaning it's for cranks that haven't been machined undersize.

Do these bearings come with assembly lube?

This ACL main bearing set typically does not include assembly lube. It is highly recommended to use a quality engine assembly lube when installing these bearings to ensure proper lubrication during initial startup and break-in.

What other engine components should I consider replacing during a main bearing job?

When replacing main bearings, it's a good time to also inspect and potentially replace rod bearings, piston rings, and engine seals. Checking the crankshaft for straightness and wear is also crucial. Always consult your vehicle's service manual for a complete list of recommended replacement parts during an engine overhaul.

Specifications

Brand: ACL
Part #: 4M1149HX-STD
UPC: 9315726426173

ACL Mitsubishi/Hyundai 6G72/6G73 2.5/3.0L V6 Standard Size Main Bearing Set

Name: ACL Mitsubishi/Hyundai 6G72/6G73 2.5/3.0L V6 Standard Size Main Bearing Set
Brand: ACL
SKU: acl-acl-mitsubishi-hyundai-6g72-6g73-2-5-3-0l-v6-standard-size-main-bearing-set-t14-509050
Price: 136.50 USD
Availability: BackOrder

$136.50

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ACL Main Bearing Set for Mitsubishi/Hyundai 6G72/6G73 2.5/3.0L V6 engines. Standard size.

Key Features

Fits numerous Chrysler, Dodge, Plymouth, Mitsubishi, and Hyundai vehicles with 6G72/6G73 2.5/3.0L V6 engines.
Standard size bearings for use with factory-spec crankshaft journals.
ACL's specialized overlay material bonded to a steel backing manages friction and heat.
Designed to meet original equipment specifications for proper fit and function.
Includes a complete set of main bearings for the specified engine applications.

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About this part

Product Details

When you're rebuilding or refreshing an engine, especially one with a 6G72 or 6G73 V6 like those found in many Mitsubishi and Hyundai models, the main bearings are critical. These ACL main bearings are built to the original equipment specifications, ensuring a proper fit and function for your 2.5L or 3.0L engine. They are designed to handle the loads and stresses of daily driving and performance use, helping to keep your crankshaft spinning smoothly within the engine block.

ACL uses a specialized overlay material that's bonded to a steel backing. This construction helps manage friction and heat, which are key factors in bearing longevity. Because these are standard size bearings, they are intended for use when the crankshaft journals are still within their original factory specifications, meaning no machining or grinding of the crank is needed. This makes them a straightforward replacement part for many engine rebuilds.

This set includes all the main bearings needed to replace the set in your engine. If you're already diving into the bottom end of your engine, it's a good idea to have these on hand. Always refer to your vehicle's specific service manual for detailed installation procedures and torque specifications.