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MAHLE 3021349B Performance Piston Ring Set Bore Steel Napier Ring - 4.325 2nd

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021349B
12 reviews
Sale Price

$6.46

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021349B is a high-performance piston ring set designed for precision engine builds requiring a 4.325-inch bore diameter. This ring set features advanced steel Napier-style second rings engineered to deliver superior oil control and compression sealing in demanding performance applications.

Key Specifications:

  • Bore Size: 4.325 inches
  • Ring Thickness: 0.043 inches
  • Radial Wall Thickness: 0.135 inches
  • Second Ring Design: Steel Napier profile for enhanced oil control
  • Ring Face: Plain (non-coated) finish
  • Configuration: Complete ring set for one cylinder

Performance Features:

  • Steel Napier second ring provides aggressive oil control while minimizing friction
  • Precision-ground ring faces ensure optimal cylinder wall sealing
  • Engineered radial wall design delivers consistent tension and conformability
  • Plain ring finish suitable for standard cylinder wall finishes

MAHLE is a globally recognized OEM supplier known for producing premium piston rings that meet the exacting standards of professional engine builders and performance enthusiasts. This ring set is ideal for custom engine builds, racing applications, and high-performance rebuilds where precise bore sizing and reliable sealing are critical.

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a little slow. Had to refresh a few times to make everything work.

Best Price

QUICK AND EASY TO USE

Best price should have free shipping on whole order if 1 qualifies.

Needs better search engine for parts within the site

Fast and easy

Had the product on the website...had a 10% off coupon code so we're good to go.

All good

Autoplicity had the best price anywhere! I looked everywhere for the airaid intake system and they had it in stock. Great company!

Super easy ordering and quick shipping. This is my second time purchasing from Autoplicity.

Sweet price and in stock :

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