Sold out
  • Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

Mahle MS Piston Set for Cummins 5.9L B-Series 12V Engine – 4.055 inch Bore, 4.724 inch Stroke, 15.1 Compression Ratio

Mahle
mhl930036455
Out of stock
Engine
$962.97
The Mahle MS Piston Set designed for the Cummins 5.9L B-Series 12V engine offers high-performance enhancements...

Mahle MS Piston Set for Cummins 5.9L B-Series 12V Engine – 4.055 inch Bore, 4.724 inch Stroke, 15.1 Compression Ratio

The Mahle MS Piston Set designed for the Cummins 5.9L B-Series 12V engine offers high-performance enhancements for your engine rebuild or upgrade. Crafted with precision, these pistons feature a 4.055-inch bore and a 4.724-inch stroke, optimized for reliable power delivery and durability. The set includes six pistons, each with a 1.575-inch pin diameter, ensuring a perfect fit for your engine's specifications. The pistons are engineered with a 15.1:1 compression ratio, maximizing combustion efficiency and power output. Designed with deep valve pockets measuring 0.150 inches, these pistons accommodate larger valves for improved airflow and performance. The total displacement of 366 cubic inches makes these pistons suitable for demanding applications requiring robust power and longevity. Crafted by Mahle, a trusted name in automotive components, these pistons are built to meet high standards of quality and precision. They are ideal for enthusiasts and professionals seeking to enhance engine performance while maintaining reliability. Please note that these pistons are not carburetor approved and require proper acknowledgment during installation, ensuring compliance with relevant regulations. The set is designed for use in automotive applications, specifically tailored for Cummins 5.9L B-Series 12V engines, offering a reliable solution for engine rebuilds or performance upgrades.

Features:

  • Bore Diameter: 4.055 inches for optimal fitment and performance
  • Stroke: 4.724 inches to maximize engine displacement and power
  • Compression Ratio: 15.1:1 for improved combustion efficiency
  • Valve Pocket Depth: 0.150 inches to accommodate larger valves
  • Piston Pin Diameter: 1.575 inches designed for secure fitting
  • Engine Compatibility: Specifically engineered for Cummins 5.9L B-Series 12V engines
  • Material: High-quality construction by Mahle for durability and performance
  • Set Includes: Six pistons for complete engine rebuild or upgrade
  • Designed for automotive applications requiring high power output and reliability
Read More
Read Less

Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

Your cart

×