How many pistons do I need for my Jeep engine?

For the 2.5L engine, you will need to purchase four pistons. If your Jeep has the 4.0L engine, you will need six pistons for a complete rebuild.

What does 'standard bore' mean for this piston?

Standard bore means this piston is the same diameter as the original piston from the factory. It's intended for engines where the cylinders have not been enlarged (bored out) during a previous rebuild.

Does this piston come with rings?

This Omix piston includes the wrist pin but does not come with piston rings. You will need to purchase piston rings separately for your engine rebuild.

Specifications

Brand: OMIX
Part #: 17427.12
UPC: 804314032166

OMIX

Omix Piston 2.5L & 4.0L Standard 96-06 Jeep Models

Name: Omix Piston 2.5L & 4.0L Standard 96-06 Jeep Models
Brand: OMIX
SKU: omix-omix-piston-2-5l-4-0l-standard-96-06-jeep-models-t14-441565
Price: 83.57 USD
Availability: BackOrder

$83.57

On Backorder

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

Fits 1997-2002 Jeep Wrangler. Omix standard bore piston for 2.5L & 4.0L engines, essential for engine rebuilds.

Key Features

Fits 1997-2002 Jeep Wrangler, 1996-2000 Jeep Cherokee, and 1996-2000 Jeep Grand Cherokee models with 2.5L or 4.0L engines.
Standard bore size for direct replacement of worn pistons.
Includes the necessary wrist pin for installation.
OE style replacement helps restore original engine performance.
Sold individually; order four for 2.5L engines or six for 4.0L engines.
Backed by a limited 5-year warranty from Omix.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're rebuilding a worn-out engine in your 1997-2002 Jeep Wrangler, replacing internal components is key to restoring lost performance. This Omix standard bore piston is designed to be a direct replacement for your original equipment, helping you get your Jeep's engine back to its full potential. Whether you have the 2.5L or 4.0L engine, these pistons are built to fit right and perform as expected.

Internal engine parts like pistons wear down over time, affecting compression and overall power. By choosing Omix replacement pistons, you're opting for a well-built part that includes the necessary wrist pin and is made to OE specifications. This ensures a straightforward installation process when you're putting your engine back together, and it helps you achieve a solid rebuild that brings back that lost power you need, especially for Jeeps.

This piston is sold individually, so be sure to order the correct quantity for your engine – four for the 2.5L or six for the 4.0L. It's a standard bore size, meaning it's meant to replace pistons that haven't been bored out. Omix backs this part with a limited 5-year warranty, giving you confidence in your engine rebuild.