What is the compression ratio with these pistons?

These Mahle pistons feature a -10.0cc dish volume. When used with an 88.0mm stroke and a 150mm connecting rod, this results in a compression ratio of 8.7:1.

What material are these pistons made from?

The pistons are constructed from 4032 aluminum. This material is commonly used for forged pistons as it offers a good balance between strength and controlled thermal expansion, making it suitable for performance applications.

Can these pistons be shipped to California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle 4G63 Piston Set 85.50mm Bore 930130066

Name: Mahle Piston Set 93-09 4G63 85.50mm Bore 88.0mm Stroke 150mm Rod 22mm Pin -10cc 8.7 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-piston-set-93-09-4g63-85-50mm-bore-88-0mm-stroke-150mm-rod-22mm-pin--t14-211333
Price: 637.08 USD
Availability: BackOrder

Mahle Piston Set 93-09 4G63 85.50mm Bore 88.0mm Stroke 150mm Rod 22mm Pin -10cc 8.7 CR Set of 4

$637.08

On Backorder — Expected to ship by May 13, 2026

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

Mahle 4G63 2.0L forged piston set. 85.50mm bore, 8.7 CR. Not CARB approved.

Key Features

Fits Mitsubishi 4G63 2.0L engines.
Set includes four forged pistons.
85.50mm bore size.
Features a -10.0cc dish volume for an 8.7:1 compression ratio.
Designed for an 88.0mm stroke and 150mm connecting rod.
Utilizes a 22mm wrist pin.

This piston set is designed for Mitsubishi 4G63 2.0L engines. Please verify compatibility with your specific vehicle model and year.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're rebuilding the engine in your Mitsubishi 4G63 2.0L, this Mahle piston set is a solid option for getting the job done right. Mahle is a well-known name in engine components, and this set is built for performance and reliability. These pistons are designed with a 85.50mm bore and a -10.0cc dish, which works out to a compression ratio of 8.7:1 when paired with an 88.0mm stroke and a 150mm connecting rod. The 22mm pin size is standard for many performance applications, and each piston weighs in at 311g. The material is 4032 aluminum, which is a good choice for forged pistons because it offers a balance of strength and thermal expansion properties suitable for demanding use.

This set includes four pistons, ready to be installed in your 4G63 engine. The -10cc dish volume is important for tuning your compression ratio, especially if you're planning on forced induction or higher octane fuels. The 150mm rod length specification is also key to achieving the desired compression and stroke combination. Remember that these pistons are not CARB approved, so they cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.