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MAHLE 3021274 Performance Steel Napier Piston Ring Set Bore - THM-13 4.175

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021274
11 reviews
Sale Price

$42.97

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021274 is a high-performance steel piston ring set designed for precision engine builds requiring a 4.175-inch bore diameter. This professional-grade ring set features MAHLE's advanced Napier THM-13 design, engineered to deliver superior sealing, reduced friction, and enhanced durability in demanding applications.

Key Specifications:

  • Bore Size: 4.175 inches
  • Top Ring Width: 1.5mm
  • Oil Ring Width: 0.150 inches (radial width)
  • Material: Performance-grade steel construction
  • Design: Napier THM-13 profile for optimized oil control
  • Surface Finish: Plain (uncoated) ring surface

Features and Benefits:

  • Precision-manufactured to MAHLE's strict tolerances for consistent performance
  • Steel construction provides excellent wear resistance and heat dissipation
  • Napier profile oil ring design ensures optimal lubrication and reduced oil consumption
  • Plain finish offers reliable sealing in standard bore applications
  • Ideal for performance rebuilds, racing applications, and high-compression engines

MAHLE is a globally recognized leader in piston ring technology, supplying OEM and aftermarket solutions for automotive, marine, and powersports applications. This ring set meets the demanding requirements of professional engine builders and performance enthusiasts.

Super, I am restoring an 1985 ford 150xl I order more!!!!

A+

What a good find, very satisfied. Good prices, good service. Will be ordering from Autoplicity in the future.

Great

First time ordering with you

Was pretty easy finding what I needed. Couldn't find info on number of days it would take to get here, but I assume ETA of 5-7 days?

Good experience. Will come back for some goodies soo

Good!

Able to edit cart and check shipping cost as I added. Nice!

Love the Amazon pay option. Best price I could find on the net was through autoplicity. Great service thus far.

Y'all is Awesome!

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