What does '0.75mm oversized' mean for these bearings?

This means the inner diameter of the bearing is slightly larger than standard. They are intended for use when the crankshaft connecting rod journals have been machined down by 0.75mm to correct wear or achieve specific clearances.

Do I need to machine my crankshaft to use these bearings?

Yes, if your crankshaft journals have not already been machined to be 0.75mm undersize (which corresponds to these 0.75mm oversized bearings), you will need to have them professionally machined and polished to the correct size before installing these bearings.

What is the typical application for oversized bearings?

Oversized bearings are commonly used during engine rebuilds. They allow mechanics to reuse a crankshaft that has minor wear by machining the journals down to a standard oversized dimension, or they can be used in performance builds to achieve very specific oil clearances.

2002-2018 Nissan Altima Rod Bearings | ACL 4B2620A-.75

Name: ACL Nissan 0.75mm Oversized Rod Bearing Set
Brand: ACL
Price: 14.35 USD
Availability: InStock

ACL Nissan 0.75mm Oversized Rod Bearing Set

$14.35

Only 2 left in stock

Fits 2002-2018 Nissan Altima. ACL Nissan 0.75mm Oversized Rod Bearing Set.

Key Features

Fits 2002-2018 Nissan Altima, 2005-2019 Nissan Frontier, 2008-2020 Nissan Rogue, and 2002-2012 Nissan Sentra.
This is a set of 0.75mm oversized connecting rod bearings.
Designed for use with QR25DE engines.
ACL is a well-known manufacturer of engine bearings.
Features a multi-layer material construction for durability and oil control.

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Product Details

When you're rebuilding or refreshing the engine in your 2002-2018 Nissan Altima, Sentra, Frontier, or Rogue, especially with the QR25DE engine, getting the connecting rod bearings right is crucial. These ACL bearings are built to precise specifications, measuring 0.75mm oversized. This means they're designed to fit crankshaft journals that have been machined down by 0.75mm, which is common when addressing wear or when building a performance engine that requires tighter tolerances.

ACL has been making engine bearings for a long time, and they're known for their well-built products. These bearings use a multi-layer material construction that helps manage oil flow and reduce friction, which is key to keeping your engine running smoothly and preventing premature wear. The 0.75mm oversize is a specific measurement, so make sure your crankshaft journals have been machined to this size before installation. Using the correct size bearing is essential for proper oil clearance and engine longevity.