Specifications
- Brand
- Mahle
- Part #
- 930070509-1
Mahle MS Piston Audi S4 81.50mm Bore 86.4mm Stroke 154mm Rod 21mm Pin -7cc (Singe Piston)
$147.64
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Mahle MS Piston for Audi S4 2.7L. Features an 81.50mm bore and 86.4mm stroke for improved engine performance.
Key Features
- Fits Audi S4 2.7L 5V Turbo engines.
- Forged from 4032 aluminum for strength and heat resistance.
- Features an 81.50mm bore and 86.4mm stroke.
- Includes a 21mm wrist pin and a 154mm connecting rod length.
- Dish volume of -7.2cc results in a 9.0:1 compression ratio.
- Each piston weighs 295g.
⚠️ 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
Product Details
This Mahle MS piston is forged from 4032 aluminum, a material known for its strength and ability to handle higher temperatures and pressures common in performance engines. It's designed for the Audi S4 with the 2.7L 5-valve turbo engine, featuring an 81.50mm bore and an 86.4mm stroke, paired with a 154mm rod and a 21mm wrist pin.
With a -7.2cc dish volume, this piston contributes to a 9.0:1 compression ratio, balancing power with reliability for boosted applications. Each piston weighs in at 295g, helping to keep rotating mass manageable for better engine response. This is a single piston, so you'll need to order the correct quantity for your engine rebuild.
Please note that this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and compatibility checks.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 930070509-1
Frequently Asked Questions
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Mahle MS Piston Audi S4 81.50mm Bore 86.4mm Stroke 154mm Rod 21mm Pin -7cc (Singe Piston)