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MAHLE 3021327B Performance Steel Napier 2nd Ring Set 3.3563in x 1.2mm

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021327B
11 reviews
Sale Price

$5.04

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021327B is a performance piston ring set featuring a steel Napier (taper hooked groove) second ring designed for high-output performance and racing applications. With a bore size of 3.3563 inches, a ring width of 1.2mm, and a radial wall of .135 inches, this plain ring set is precision-engineered to deliver superior sealing, oil control, and durability under demanding operating conditions.

Key Features:

  • Steel Napier (THG) second ring design for superior oil control and combustion gas management
  • Taper hooked groove (THG) profile acts as a check valve to relieve excess combustion pressure buildup beneath the top ring
  • Precision-ground to ultra-flat ring flanks for maximum ring-to-piston groove sealing
  • 3.3563 in. bore diameter with 1.2mm ring width and .135 in. radial wall
  • Plain (uncoated) ring finish for broad compatibility
  • Engineered to minimize friction and provide measurable performance gains

MAHLE performance piston rings are developed using advanced piston ring simulation and computer modeling tools to reduce parasitic friction and maximize power output. The steel Napier second ring handles up to 80% of oil control duties while also contributing to compression retention, making it a critical component in any performance engine build.

thank you

Easy to find what I'm looking for.

Good xp

Awesome

Great place buy what you need for your vehicle. They mad it easy and simple to purchase exactly what I needed right away. Confirmed and shipped it within 24 hours. I would highly recommend using them for all your vehicle needs.

I hop eit doesn't take too long to arrive =)

Prices are comparable to other retailers. And they have items in stock that others were saying it would take a month. Fast shipping and great communication. Thank

Autoplicity was plenty cheaper than competitors for the springs I needed. I was shopping around and left the website after beginning a transaction and they sent me a coupon for 25% off shipping if I would return and purchase from them, which was cool. Unfortunately the coupon code didn't change the price and I didn't receive 25% off, but it was still cheaper than others.

Smooth transaction. Would definitely do business with again in the future.

Got my order fast and everything was correct. Thanks for the good deal, just need some rear ones next.

Wow super fast shipping and I ordered over a holiday weekend. Will be doing business with this site again soon.

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