What does the '-20' in the part number mean?

The '-20' suffix on this ACL bearing set indicates that the bearings are 0.020 inches undersize. This is important if your crankshaft journals have been machined to a smaller size during an engine rebuild.

What is the material of these main bearings?

These main bearings are constructed from an aluminum alloy, denoted by the 'AL' in the part number. This material is chosen for its combination of strength and ability to conform to the crankshaft journals.

What is the importance of main bearings in an engine?

Main bearings support the crankshaft within the engine block and are critical for reducing friction and wear. They help maintain proper oil pressure and ensure the crankshaft rotates smoothly, which is vital for engine performance and longevity.

ACL Engine Crankshaft Main Bearing Set 4M1419AL-20

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-t14-633104
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 offers a good balance of strength and conformability.
Main bearings reduce friction and wear between the crankshaft and engine block.
Part number 4M1419AL-20 indicates a 0.020 inch undersize bearing set.
Essential for engine rebuilds and maintaining proper oil pressure.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

ACL has been making engine bearings for decades, and this Crankshaft Main Bearing Set for your Chrysler product is one of their staples. These bearings are crucial for keeping your crankshaft spinning smoothly within the engine block. They sit between the crankshaft journals and the engine block, reducing friction and wear on these critical components. If you're rebuilding an engine or dealing with worn-out bearings, a fresh set like this is essential for proper oil pressure and engine longevity.

This set is made with a durable aluminum alloy, designed to handle the pressures and temperatures found in your engine. The 'AL' in the part number indicates the aluminum alloy construction, which is a popular choice for its good balance of strength and conformability. The '-20' suffix means these bearings are 0.020 inches undersize, which is important if your crankshaft journals have been ground undersize during a rebuild. Always confirm your crankshaft journal size before ordering bearings.

This set fits a wide range of Chrysler, Dodge, and Plymouth vehicles from the mid-70s to the late-80s. Make sure to check the fitment list to confirm compatibility with your specific year and model. When installing, proper cleaning of the bearing surfaces and crankshaft journals is key, along with using the correct oil weight for initial startup.