What does the '0.030' mean in the part number?

The '0.030' indicates that these bearings are 0.030 inches undersize. This means they are intended for use with a crankshaft that has been machined down by 0.030 inches to correct for wear or damage during an engine rebuild.

What is the material of these main bearings?

These main bearings are constructed from an aluminum alloy. This material is chosen for its ability to withstand the high pressures and temperatures found within an operating engine while providing good wear characteristics.

What is the primary function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. Their main job is to reduce friction between the rotating crankshaft and the stationary engine block, allowing for smooth operation and preventing excessive wear.

ACL Engine Crankshaft Main Bearing Set 4M1419AL-30

Name: ACL Chrysler Prod. 6 225 1976-87 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-chrysler-prod-6-225-1976-87-engine-crankshaft-main-bearing-set-t14-633105
Price: 25.96 USD
Availability: BackOrder

ACL Chrysler Prod. 6 225 1976-87 Engine Crankshaft Main Bearing Set

$25.96

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

ACL Chrysler Prod. 6 225 1976-87 Engine Crankshaft Main Bearing Set

Key Features

Fits 1976-1987 Chrysler, Dodge, and Plymouth vehicles.
Aluminum alloy construction for durability.
0.030 inch undersize for use with machined crankshafts.
Supports the crankshaft and reduces friction in the engine.

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Will this fit your vehicle?

Product Details

ACL has been making engine bearings for decades, and this Crankshaft Main Bearing Set for your Chrysler, Dodge, or Plymouth is one of their staples. These bearings are critical for keeping your engine running smoothly by supporting the crankshaft and reducing friction. When it's time to rebuild or repair your engine, especially if you're dealing with wear or noise, a fresh set of main bearings is a key part of the job.

This set is built with a durable aluminum alloy material, designed to handle the pressures and heat inside your engine. They are precision-sized to meet original equipment specifications, ensuring a proper fit and function. The 0.030 inch undersize means these bearings are intended for crankshafts that have been machined down by 0.030 inches to correct for wear or damage. This is a common step in engine rebuilding to restore proper clearances and oil pressure.

When you're putting an engine back together, getting the right bearings is essential for longevity. Make sure to follow the manufacturer's installation instructions and use the correct assembly lube to protect these new bearings during initial startup.