My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

MAHLE 4055MDK-D Performance Piston Ring Set for Duramax Race Cast Pistons

Manufacturer

Picture for manufacturer MAHLE

Part Number

4055MDK-D
9 reviews
Sale Price

$353.24

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 4055MDK-D is a high-performance replacement piston ring set designed specifically for MAHLE Race Cast Pistons in GM Duramax diesel engines. This precision-engineered ring set is built for stock bore applications and delivers the durability and performance required for high-output diesel builds.

Key Features:

  • Designed specifically for MAHLE Race Cast Piston part number 930036055
  • Stock bore application ring set
  • Low drag performance ring design for reduced friction
  • Engineered for high-performance and race applications
  • Single piston replacement ring set (rings for one piston)
  • Compatible with GM Duramax diesel engines

Important Compatibility Note: This ring set will ONLY fit MAHLE Race Cast Pistons and will NOT fit other aftermarket pistons or factory stock pistons. Ensure proper fitment before installation.

MAHLE Motorsport ring sets feature advanced materials and coatings optimized for reduced friction and extended life in demanding performance applications. Each ring is precision-manufactured to exacting tolerances for proper sealing and long-term reliability in modified diesel engines.

Products specifications

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Easy to search on your site. Quick checkout options. Incredible prices and shipping rates

Even though it's noted the image is not correct I would rather see the correct image for the correct model number

Surprised!! I wasn't expecting this until after Christmas. What more can I say, arrive quickly, excellent product and company. I would buy from them again.

Great price, selection and Amazon payment.

GOOD

Response was a little slow - could be my computer. Layout should go back to continue shopping and not directly to checkout.

I enjoy shopping with Autoplicity as I have found they almost always have the best price available.

They had the best price on a hitch I was looking for and the shipping was fast also. The hitch was shipped bare except for taping the box of bolts to it thus leaving the hitch open and chipping the paint/powdercoating in quite a few places which I had to touch up before installing.

good price and everything i needed this is the second email ive recieved to rate my order, i dont know what happened but hoping it was a mix up

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy