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MAHLE 3021216B Performance Piston Ring Set Bore Napier Steel - 4.065

Manufacturer

Picture for manufacturer MAHLE

Part Number

3021216B
12 reviews
Sale Price

$5.31

Estimated ship date Saturday, November 21

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Product Details

The MAHLE 3021216B is a high-performance piston ring set engineered for precision engine builds requiring a 4.065-inch bore diameter. This bulk plain ring set features advanced Napier-style steel construction on the second ring for superior oil control and durability in demanding applications.

Key Specifications:

  • Bore Size: 4.065 inches
  • Ring Thickness: 1.0mm
  • Radial Wall Thickness: 0.136 inches
  • Second Ring Design: Napier steel construction for enhanced oil control
  • Configuration: Bulk plain ring set (individual rings, not pre-gapped)

MAHLE piston rings are manufactured to OEM specifications and feature premium materials designed to reduce friction, improve sealing, and extend engine life. The Napier-style second ring provides a scraping action that effectively manages oil consumption while maintaining proper cylinder wall lubrication. These rings are ideal for performance rebuilds, racing applications, and high-compression engine builds where precise tolerances are critical.

Note: Bulk ring sets are sold as individual components and require proper fitting, gapping, and installation according to engine specifications.

Easy to navigate thanks

Easy to complete order process. Delivery was much quicker and cheaper than anticipated.

Very easy

This company is pretty good even when I found what I was looking for cheaper then some other websites

fast and easy

Easy to order. Immediate confirmation w/details, including shipping info. Great price and great service. I ordered a couple oil filters for my motorcycle (KN204) and the price was 60% of what I often pay from moto-specific web vendors. I took a chance and came up a winner.

I've been looking for this item to protect my Dixon high pressure gauge and hope it fit.

Shopping was quick and easy with the link to Amazon to pay.

Best Prices

Great convenience with the pay by Amazon option. Easy transaction :)

Quick and easy checkout THANKS

Thanks

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