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MAHLE 3021293B Performance Steel Napier Ring Set Bore - 4.065

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021293B
11 reviews
Sale Price

$6.76

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021293B is a high-performance piston ring set engineered with premium steel construction for demanding racing and high-output applications. This Napier-style ring set is designed for 4.065-inch bore diameter cylinders and features MAHLE's THM-13 thermal barrier coating for superior heat resistance and reduced friction.

Key Specifications:

  • Bore Size: 4.065 inches
  • Ring Thickness: 0.043 inches
  • Radial Wall: 0.135 inches
  • Configuration: Plain ring design
  • Material: Performance-grade steel construction
  • Coating: THM-13 thermal barrier treatment
  • Style: Napier profile for optimized oil control

Performance Features:

  • Steel construction provides exceptional durability under high cylinder pressures and temperatures
  • THM-13 coating reduces friction and improves thermal management
  • Napier profile design delivers superior oil control in performance applications
  • Precision-manufactured to MAHLE's exacting motorsports standards
  • Ideal for racing, turbocharged, and supercharged engine builds

MAHLE performance ring sets are trusted by professional engine builders and racers worldwide for their consistent quality, precise tolerances, and proven durability in extreme conditions. Each ring set is manufactured using advanced materials and coatings developed through decades of motorsports experience.

A+++++++++++

some sizes were not available as with this item

esy order - good pricing

Always great to do business with

Great easy to use site!

Good

Simple!

First time buying at this wed site and was pretty simple

Great sources,very easy ordering,outstanding prices, <br>I will always check their prices first !!

Lightning fast service! Good prices.

Great price on product sold out at my "regular" place. My only negative was that I didn't get info to track the package or know when it would be delivered -- until AFTER it had been delivered. But that's not such a bad thing; it was a nice surprise when it showed up! I'll be recommending you to friends.

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