What material are these pistons made from?

These Mahle MS pistons are forged from 2618 aluminum. This material is chosen for its strength and ability to withstand high temperatures and pressures common in performance engines.

What is the compression ratio with these pistons?

When installed with the stock stroke and rod length for the BMW B58 3.0L engine, these pistons result in a 10.6:1 compression ratio due to their -11.0cc dish volume.

Can these pistons be shipped to California?

No, this part is not CARB approved and cannot be shipped to California. Please check local regulations for emissions compliance in your area.

Mahle MS B58 3.0L Piston Set 197883929T

Name: Mahle MS BMW B58 3.0L 82.00mm x 33.27mm CH -11cc 299g 10.6CR Pistons (Set of 6)
Brand: Mahle
SKU: mahle-mahle-ms-bmw-b58-3-0l-82-00mm-x-33-27mm-ch-11cc-299g-10-6cr-pistons-set-of-t14-537491
Price: 1489.47 USD
Availability: BackOrder

Mahle MS BMW B58 3.0L 82.00mm x 33.27mm CH -11cc 299g 10.6CR Pistons (Set of 6)

$1489.47

On Backorder

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

Mahle MS forged piston set for BMW B58 3.0L engines. 82.00mm bore, 10.6:1 CR.

Key Features

Fits BMW B58 3.0L engines.
Forged from 2618 aluminum for strength and durability.
Features an 82.00mm bore and a -11.0cc dish volume.
Achieves a 10.6:1 compression ratio with stock stroke and rod.
Each piston weighs 299g.
Includes TBC coating to help reduce friction.

⚠️ 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

Mahle is a well-known name in engine components, often supplying parts for original equipment manufacturers. This expertise translates into their aftermarket performance parts, like this set of MS forged pistons specifically for the BMW B58 3.0L engine. If you're rebuilding the top end of your B58, these pistons are built to handle increased demands.

These pistons are forged from 2618 aluminum, a strong material commonly used in high-performance applications because of its durability and resistance to expansion under heat. They feature a 82.00mm bore and a dish volume of -11.0cc, which contributes to a 10.6:1 compression ratio when paired with the stock stroke and rod length. Each piston weighs in at 299g, and they come with a TBC coating, which helps reduce friction in the cylinder bore. This set includes six pistons, ready for your engine build.

When installing these pistons, remember they are designed for a specific fitment with the BMW B58 3.0L engine. It's always a good idea to consult your service manual for the correct installation procedures and torque specifications. Please note that this part is not CARB approved and cannot be shipped to California.