What is the primary function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while maintaining the correct oil clearance, which is crucial for proper lubrication and preventing friction.

Are these bearings a direct replacement for the original equipment?

Yes, these ACL main bearings are designed as a direct replacement for the original equipment in the specified 4.0L V6 SOHC Ford engines. They are precision-sized to fit correctly during an engine rebuild.

What is the recommended procedure for installing these bearings?

It is important to carefully clean the crankshaft and engine block surfaces before installation. Always refer to the manufacturer's service manual for the correct installation procedure, including proper lubrication of the bearings and crankshaft journals before assembly.

Specifications

Brand: ACL
Part #: 4M2006A-20

ACL Ford Tr. V6 177-244 1990-97 Engine Crankshaft Main Bearing Set

Name: ACL Ford Tr. V6 177-244 1990-97 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-tr-v6-177-244-1990-97-engine-crankshaft-main-bearing-set-t14-630682
Price: 25.11 USD
Availability: BackOrder

$25.11

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Fits 1990-2011 Ford Ranger. ACL crankshaft main bearing set for 4.0L V6 engines. Essential for engine rebuilds.

Key Features

Fits 1990-2011 Ford Ranger, 1997-2010 Ford Explorer, 2001-2005 and 2008-2010 Ford Explorer Sport Trac, and 1998-2002 and 2004-2010 Mercury Mountaineer.
Designed for 4.0L V6 SOHC engines (VIN E, K, X).
Features a specialized overlay material for improved durability and wear resistance.
Precision sized for proper crankshaft and engine block fitment.
Helps maintain correct oil clearance for reliable engine operation.
Essential component for engine rebuilds and overhauls.

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About this part

Product Details

When you're rebuilding the engine in your 1990-2011 Ford Ranger, Explorer, or Mercury Mountaineer with the 4.0L V6 SOHC engine, the crankshaft main bearings are critical. These ACL main bearings are built to handle the loads and stresses of daily driving and more demanding use. They are a key component for ensuring your engine runs smoothly and reliably after a rebuild.

ACL uses a specialized overlay material that's designed for durability and to work well with various crankshaft finishes. This means they offer good protection against wear, even under high mileage conditions. The precision sizing ensures a proper fit on the crankshaft and in the engine block, which is essential for maintaining correct oil clearance and preventing premature failure. If you're doing a full engine overhaul, replacing these bearings is a standard and important step.

This set includes all the main bearings needed for your specific 4.0L V6 engine. Make sure to follow the manufacturer's installation instructions carefully, paying close attention to oil clearances and lubrication during assembly.