My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

MAHLE 3021266 Performance Steel Napier THM-13 Piston Ring Set 4.170" Bore x .043" Plain

Manufacturer

Part Number

3021266
Sale Price

$42.96

Estimated ship date Saturday, November 21

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 3021266 Performance Steel Napier THM-13 ring set delivers race-proven technology for high-performance engine builds. Designed for 4.170-inch bore applications, this professional-grade piston ring set features advanced materials and coatings engineered to minimize friction while maximizing durability and seal integrity.

Key Features:

  • 4.170-inch bore diameter with .043-inch (1.5mm) ring width configuration
  • Steel Napier THM-13 design for superior wear resistance and compression sealing
  • Plain ring set with optimized ring tension for reduced friction
  • Positive-twist ductile iron top ring with barrel face and plasma-moly inlay coating
  • Taper Hook Groove (THG) second ring design for enhanced oil control
  • Pre-lapped rings for quick seating and reduced break-in time
  • Engineered using MAHLE's advanced piston ring simulation and computer development tools

MAHLE's performance ring sets are trusted by professional engine builders and racers worldwide. The THM-13 Napier design provides exceptional durability under high-stress conditions while maintaining precise combustion chamber sealing. This plain ring set is ideal for performance builds requiring reliable compression and efficient oil control.

Cheapest price found

Great prices, simple payment. Would highly recommend this group.Looking forward to future business dealings

so far its been quick, easy, and actually had exatcly what i needed

Very easy

very easy and great prices

Thank you

Easy shopping

Had just what I needed, discounted shipping, and was able to check out using Amazon.

ill tell you when i get the product

Good Web page

tres facile pour acheter sur se site parfait

lowest price I could find ANYWHERE. Website needs some work (login screen appears to be asking you to login again after you enter account info).

I ordered some floor mats for a Prius. Autoplicity was very competitive in their pricing. Not only that, they shipped quickly and had great feedback during and after I ordered. I would purchase from them again!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy