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MAHLE 3021252B Performance Piston Ring Set Bore Steel Napier - 4.035 THM-13

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021252B
11 reviews
Sale Price

$6.91

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021252B is a high-performance piston ring set engineered for precision engine builds requiring a 4.035-inch bore diameter. This premium ring set features steel construction with Napier THM-13 ring profile technology, designed to deliver optimal sealing, reduced friction, and enhanced durability in demanding performance applications.

Key Specifications:

  • Bore Size: 4.035 inches
  • Top Ring Width: .043 inches
  • Second Ring Width: .135 inches
  • Ring Configuration: RW (Reverse Twist) Plain Ring Set
  • Material: Performance-grade steel construction
  • Profile: Napier THM-13 design for superior oil control

MAHLE ring sets are manufactured to OEM standards with advanced materials and coatings that provide excellent wear resistance and consistent performance across a wide range of operating conditions. The Napier profile second ring offers improved oil control while the reverse twist configuration ensures proper ring seating and optimal cylinder wall contact. Ideal for performance rebuilds, racing applications, and high-output street engines.

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.

SO FAR SO GOOD

very E-Z to navigate this site.

Good and quick. Very little hassle.

Easy checkout

Best price I could find by far on an Optima yellow top car battery!

quick and easy

Good service so far

very quick and easy

I found a item at Autoplicity that I could not locate on other sites. The item was shipped quickly and I was advised of this by an email detailing all of the shipping information. I am well pleased with all aspects of this transaction.

Easy as pie!

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