What does '0.25mm undersize' mean for these bearings?

This means the bearings are slightly smaller than standard size by 0.25mm. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm during an engine rebuild to ensure a fresh, properly sized surface for the new bearings.

What is the pMax Black overlay mentioned in the description?

The pMax Black overlay is a feature of the XP-Series bearings, indicating a specific material composition that offers improved durability and performance compared to standard bearing materials. It's part of the tri-metal construction.

Are these bearings suitable for a stock engine rebuild?

Yes, these King XP-Series bearings are a well-built option for stock engine rebuilds, especially if you anticipate harder use or want an improved component over standard bearings. They are also an option for performance builds.

Specifications

Brand: King Engine Bearings
Part #: CR4119XP0.25
UPC: 611500570933

King Mitsubishi 4G91/4G92/4G93 16V (Size 0.25mm) XP - Series Performance Rod Bearing Set

Name: King Mitsubishi 4G91/4G92/4G93 16V (Size 0.25mm) XP - Series Performance Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-mitsubishi-4g91-4g92-4g93-16v-size-0-25mm-xp-series-pe-t14-321250
Price: 51.38 USD
Availability: BackOrder

$51.38

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Fits 1993-2002 Mitsubishi Mirage. King XP-Series performance rod bearings, 0.25mm undersize, for engine rebuilds.

Key Features

Fits 1993-2002 Mitsubishi Mirage, 1992-1996 Eagle Summit, 1992-1994 Dodge Colt, 1992-1994 Plymouth Colt, and 1992-1994 Mitsubishi Expo LRV.
King XP-Series performance rod bearings are designed for demanding engine applications.
Features a tri-metal construction with a pMax Black overlay for improved durability.
These bearings are 0.25mm undersize, intended for use with a machined crankshaft.
Set includes connecting rod bearings for Mitsubishi 4G91, 4G92, and 4G93 16V engines.

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About this part

Product Details

If you're rebuilding the engine in your 1993-2002 Mitsubishi Mirage, especially if you're aiming for more power or just want a solid refresh, paying attention to your connecting rod bearings is crucial. These King XP-Series bearings are a step up from standard bearings, designed for engines like the 4G91, 4G92, and 4G93 16V that might see harder use.

The XP-Series uses a tri-metal construction with a pMax Black overlay, which is a tougher material compared to standard bearings. This means they can handle more stress and friction, which is important when you're pushing an engine harder or if you're dealing with a performance build. These bearings are also 0.25mm undersize, meaning they're meant for crankshafts that have been machined down by that amount during an engine rebuild to ensure a fresh, perfectly sized surface for the bearings to run on.

When you're putting an engine back together, especially one that's been rebuilt or modified, using well-built bearings like these King XP-Series is a smart move. They're a popular choice for those who want reliable performance from their engine internals.