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MAHLE 3021257 Performance Piston Ring Set Napier Bore - THM-13 4.160

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021257
11 reviews
Sale Price

$32.68

Estimated ship date Friday, November 20

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The MAHLE 3021257 is a high-performance piston ring set engineered for demanding racing and performance applications. This Napier-style ring set features THM-13 coating technology designed for maximum durability and reduced friction in high-stress environments.

Key Specifications:

  • Bore Size: 4.160 inches
  • Top Ring Thickness: .043 inches
  • Oil Ring Thickness: .135 inches
  • Ring Width: Plain style
  • Napier configuration for improved oil control
  • THM-13 thermal barrier coating for enhanced heat resistance

MAHLE performance ring sets are precision-manufactured to exacting tolerances and feature advanced coatings that reduce friction while maximizing ring seal and cylinder wall protection. The Napier second ring design provides superior oil control characteristics, making this set ideal for high-performance street and racing engines where reliability and power output are critical.

Great!!!

Easy process

easy to order!

Great website navigation

First purchase with your company

Very easy and simple check out

very good price

Service was fast, shipping was fast, price was very reasonable. There was a problem with the item and I am contacting them today about it. I will let you know how it goes. The keys do not fit one of the locks.

Very easy to find the parts I need

Love the prices will come back again

excellent... best deal I could find.

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