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MAHLE 3021309B Performance Piston Ring Set Steel Napier Bore - THM-13 4.095

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021309B
12 reviews
Sale Price

$6.24

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021309B is a high-performance piston ring set engineered for demanding applications requiring superior durability and sealing. This premium ring set features steel Napier compression rings with THM-13 coating technology, designed to provide excellent wear resistance and oil control in high-performance engines.

Key Specifications:

  • Bore Size: 4.095 inches
  • Ring Thickness: 0.043 inches
  • Radial Wall Thickness: 0.135 inches
  • Material: Performance steel construction
  • Coating: Napier THM-13 thermal treatment
  • Style: Plain ring design

MAHLE piston rings are manufactured to OEM tolerances and feature advanced surface treatments that reduce friction, improve sealing, and extend engine life. The steel construction provides exceptional strength for high-performance and racing applications where standard cast iron rings may not be adequate. Each ring set is precision-machined to ensure proper end gap and optimal cylinder wall conformity.

Applications: Suitable for custom engine builds, racing engines, and performance applications requiring a 4.095-inch bore diameter. Compatible with various engine configurations when properly matched to piston specifications.

So good so far, txs

Easy to purchase delivery was slow as it was not in stock more info on it would be great

Lowest Price available for shocks, Order process made very simple, Paid thru Amazon.

Great

Excellent, except I couldn't find where to enter my 20OFFSHIPPING Coupon Code.

Easy and straightforward purchase with excellent delivery.

Best prices I could find anywhere! Fast shipping. Will definitley buy from again.

cool sight found my part right away

Great price. Better than Amazon!

Great price. I bought the same torsion unloading tool for $30 less on Autoplicity than Amazon. So far a great first experience with Autoplicity

I ordered a WeatherTech cargo liner from Autoplicity after finding the product almost $40 cheaper than anywhere else. Usually I'm suspect of the one company with a very low price but the high number of reviews gave me enough comfort to order. The product came in a large box and was shipped for a very reasonable price and arrived in four business days. The product is as described and I couldn't be happier. I will definately keep them in mind for future orders.

Easy and quick

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