What material are these Mahle pistons made from?

These Mahle MS pistons are constructed from 2618 aluminum. This material is chosen for its strength and ability to withstand the higher temperatures and pressures common in performance engine builds.

What is the compression ratio achieved with these pistons?

When installed with the appropriate components for the 4B11T engine, these pistons are designed to achieve a 9.1 compression ratio. They feature a -4.5cc dish volume to help reach this ratio.

Are these pistons compatible with all Mitsubishi 4B11T engines?

These pistons are specifically designed for the Mitsubishi 4B11T 2.0L engine. It is important to verify that your specific engine configuration and build plan align with the specifications, such as bore, stroke, and rod length, before installation. Note that they are not CARB approved.

Mahle MS Piston Set 4B11T 86.50mm Bore 929945905

Name: Mahle MS Piston Set 4B11T 86.50mm Bore 86.0mm Stroke 143.75mm Rod 23mm Pin -4.5vol 9.1 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-4b11t-86-50mm-bore-86-0mm-stroke-143-75mm-rod-23mm-pin-t14-191498
Price: 749.22 USD
Availability: InStock

Mahle MS Piston Set 4B11T 86.50mm Bore 86.0mm Stroke 143.75mm Rod 23mm Pin -4.5vol 9.1 CR Set of 4

$749.22

Only 1 left in stock

Mahle MS Piston Set for Mitsubishi 4B11T 2.0L engines. Features 86.50mm bore and 9.1 CR for improved performance.

Key Features

This product is a set of four Mahle MS forged pistons.
Each piston has a bore diameter of 86.50mm and a 23mm wrist pin.
The pistons are designed for an 86.0mm stroke and a 143.75mm rod length.
Achieves a 9.1 compression ratio with a -4.5cc dish volume.
Constructed from 2618 aluminum for strength and thermal stability.
Each piston weighs approximately 337 grams.

These pistons are designed for the Mitsubishi 4B11T 2.0L engine. They are not CARB approved and cannot be shipped to California.

⚠️ 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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Product Details

This Mahle MS Piston Set includes four forged pistons designed for the Mitsubishi 4B11T engine. Each piston measures 86.50mm in bore diameter, with a 23mm wrist pin and a 143.75mm rod length. The set is engineered to achieve a 9.1 compression ratio with a -4.5cc volume dish, making it a solid choice for engine rebuilds where enhanced performance is a goal.

Crafted from 2618 aluminum, these pistons are known for their strength and ability to handle higher cylinder pressures and temperatures often found in modified or performance-oriented 4B11T applications. The 86.0mm stroke compatibility ensures proper fitment within the engine's geometry. Each piston weighs approximately 337 grams, contributing to a well-balanced rotating assembly when installed correctly.

When rebuilding your 4B11T engine, consider the specific requirements for installation. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions and specifications to ensure proper fitment and performance.