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MAHLE 3021270 Performance Piston Ring Set Bore Steel Napier - 4.125 THM-13

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021270
12 reviews
Sale Price

$41.01

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021270 is a high-performance piston ring set engineered for precision engine builds requiring a 4.125-inch bore diameter. This professional-grade ring set features steel Napier design rings optimized for durability and reliable sealing in demanding applications.

Key Specifications:

  • Bore Size: 4.125 inches
  • Ring Configuration: THM-13 Napier design
  • Top Ring Thickness: 1.5mm
  • Ring Width: 0.150 inches radial wall (RW)
  • Material: Performance steel construction
  • Surface Finish: Plain (uncoated)

Features and Benefits:

  • Steel Napier ring design provides excellent oil control and reduced friction
  • Precision-manufactured to tight tolerances for optimal ring seal
  • Plain surface finish suitable for standard cylinder wall finishes
  • 1.5mm top ring thickness offers a balance of strength and conformability
  • Designed for high-performance and racing applications

MAHLE is a globally recognized leader in engine components, known for their engineering excellence and quality manufacturing. This ring set is ideal for engine builders and performance enthusiasts seeking reliable, professional-grade piston rings for custom engine builds.

Very Fast

Very easy and fast

Was GREAT!!!!

I hope you're right about compatibility!!!!

Very good deals

fast

quick and easy

Found what I needed a check out was super fast

I was lowering my Mustang and I was looking for a good deal. I looked around online and I found Autoplicity. I was surprised with the prices I saw. I thought it was another one of those fake websites that just take youre money and never respond, so I took the chance and ordered anyway. Dont be fooled by the cheap prices. This place is legit. Fast shipping and the package was packed so neat and looked great when it got here. Buy from these guys if you want to get a good deal. I highly recommend them.

Great prices, reasonable charges for expedited shipping

Easy to use great product and fair pricing

needs to be easier to make sure part numbers are correct for shocks for lifted and unlifted vehicles

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