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MAHLE 3021247B Performance Piston Ring Set Steel Napier Bore - THM-13 4.055

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021247B
10 reviews
Sale Price

$6.80

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021247B is a high-performance piston ring set engineered for precision engine builds requiring a 4.055-inch bore diameter. This professional-grade ring set features steel construction with Napier THM-13 ring design, delivering exceptional sealing performance and durability in demanding applications.

Key Specifications:

  • Bore Size: 4.055 inches
  • Top Ring: 0.043 inch thickness
  • Second Ring: 0.135 inch thickness
  • Ring Wall: Plain style
  • Material: Performance steel construction
  • Design: Napier THM-13 configuration

MAHLE piston rings are manufactured to OE standards with advanced materials and coatings that provide superior wear resistance, reduced friction, and optimal compression sealing. The Napier ring profile is specifically designed to manage oil control while maintaining consistent cylinder wall contact throughout the engine's operating range.

This ring set is ideal for performance engine rebuilds, racing applications, and high-compression builds where precise ring specifications are critical for achieving maximum power output and reliability.

So far so good, easily found what I was looking for.

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Great

very happy lighting fast shipping

Best Price

It was good

Very good

I was told about Autoplicity from a friend on a car forum site that I wouldn't be disappointed with the price, quality and shipping. <br><br>I ordered my part on 7-18-12 and received my item the very next day. That's about as fast as getting some parts from the local auto parts store when they have the parts stocked in an outlying warehouse.<br><br>I will certainly look to Autoplicity first when I need to order engine and other car parts for my 87' Monte Carlo SS<br><br><br><br>

I searched and searched and could not find a good price then i found Autoplicity and gave it a try, i couldn't believe i found my headers i wanted at an incredible low price, let alone the shipping was at a fair price even total price was lower than ebay or other places, definitely keeping this site on my sights for new parts and other products im keeping in mind!

Great Price and great Shipping fee!

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