What does '0.25mm oversized' mean for these rod bearings?

This means the bearings are slightly larger than standard size. They are intended for use when the crankshaft journals have been machined down by 0.25mm (approximately 0.010 inches) during an engine rebuild. This allows for a new, precise fit and proper oil clearance.

Are these bearings suitable for a stock crankshaft?

No, these bearings are specifically 0.25mm oversized. They are meant for a crankshaft that has been machined down to this undersize to accommodate the larger bearing surface.

What is the primary benefit of using ACL bearings?

ACL is a popular manufacturer known for producing engine bearings. Using their bearings helps ensure you have the correct oil clearance and a well-built foundation for your engine, especially important for performance or rebuilt engines.

ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM and EVO I-IX 0.25mm Oversized Rod Bearing Set

Specifications

Brand: ACL
Part #: 4B1185A-.25
UPC: 084777700036

ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM and EVO I-IX 0.25mm Oversized Rod Bearing Set

Name: ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM and EVO I-IX 0.25mm Oversized Rod Bearing Set
Brand: ACL
SKU: acl-acl-mitsubishi-4g63-4g64-7-bolt-2nd-gen-dsm-and-evo-i-ix-0-25mm-oversized-ro-t14-329353
Price: 10.36 USD
Availability: BackOrder

$10.36

On Backorder

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

Fits 2001-2006 Kia Optima. ACL 0.25mm oversized rod bearing set for Mitsubishi 4G63/4G64 engines.

Key Features

Fits 2001-2006 Kia Optima.
ACL brand rod bearing set.
Designed for Mitsubishi 4G63 and 4G64 7-bolt engines.
Bearings are 0.25mm (.010 inch) oversized for reconditioned crankshafts.
Set includes rod bearings for a complete engine build.

Secure CheckoutFast Shipping631-982-0042

Fits this vehicle

Kia Optima 2001-2006

Product Details

When you're rebuilding or refreshing the engine in your 2001-2006 Kia Optima, especially if it's a performance build based on the Mitsubishi 4G63 or 4G64 engine, getting the right bearings is crucial. These ACL rod bearings are designed to be 0.25mm (which is about .010 inches) oversized. This means they're intended for crankshafts that have been machined down to match this size, allowing for a fresh, tight fit in the connecting rods.

ACL is a well-known name in engine bearings, and these are built to handle the demands of these popular engines. They are a solid option for anyone looking to ensure proper oil clearance and a reliable foundation for their engine build. Because they are oversized, they are specifically for engines where the crankshaft journals have been reconditioned to this specific dimension.