What does the .25mm undersize mean for these rod bearings?

The .25mm undersize specification means these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This allows for a proper fit and oil clearance on a crankshaft that has been resurfaced due to wear or damage.

Do these bearings come with assembly lube?

This set includes the rod bearings only. It is recommended to use a high-quality engine assembly lubricant when installing these bearings to ensure proper initial lubrication and protection.

Are these bearings suitable for a stock engine rebuild?

Yes, these ACL bearings are a solid option for a stock engine rebuild, especially if the crankshaft journals have been machined to the .25mm undersize specification. They offer reliable performance and durability.

ACL 82-91 Porsche 944 2.5/2.7/3.0L .25mm Oversized Rod Bearing Set

Specifications

Brand: ACL
Part #: 4B2475H-001
UPC: 9315726455821

ACL 82-91 Porsche 944 2.5/2.7/3.0L .25mm Oversized Rod Bearing Set

Name: ACL 82-91 Porsche 944 2.5/2.7/3.0L .25mm Oversized Rod Bearing Set
Brand: ACL
Price: 113.16 USD
Availability: InStock

$113.16

On Backorder

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

1985-1995 Porsche 928/944/968 .25mm Oversized Rod Bearing Set

Key Features

Fits 1985-1991, 1993-1995 Porsche 928, 1987-1991 Porsche 944, and 1992-1995 Porsche 968.
Set includes rod bearings that are 0.25mm (.010 inch) undersize.
Manufactured by ACL, a popular brand for engine components.
Designed to provide proper oil clearance for rebuilt or performance engines.
Helps ensure smooth crankshaft rotation and reduces friction.

Secure CheckoutFast Shipping631-982-0042

Fits these vehicles

Porsche 928 1985-1991, 1993-1995
Porsche 944 1987-1991
Porsche 968 1992-1995

Product Details

Rebuilding the top end of your Porsche 928, 944, or 968? If you're honing the crankshaft journals to a 0.25mm undersize, you'll need these ACL rod bearings to match. These bearings are crucial for maintaining the correct oil clearance between the crankshaft and connecting rod, which is essential for proper engine lubrication and longevity. Using the right size bearing ensures that the crankshaft spins freely without excessive play, preventing premature wear.

ACL is a well-known name in engine bearings, and this set is built to meet the demands of performance and rebuilt engines. They are manufactured with precision to ensure they fit right and perform reliably. When you're doing an engine rebuild, especially if you've had to machine the crankshaft journals, using a quality bearing set like this from ACL is a critical step in getting your engine back to its best. This set is specifically sized at 0.25mm undersize to accommodate crankshafts that have been machined to that specification.