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MAHLE 3021291B Performance Piston Ring Set Steel Napier Bore - THM-13 4.010

Manufacturer

Part Number

3021291B
Sale Price

$6.15

Estimated ship date Saturday, November 21

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 3021291B is a high-performance piston ring set engineered for precision engine builds requiring a 4.010-inch bore diameter. This professional-grade ring set features durable steel construction with Napier THM-13 design, specifically engineered for demanding applications where reliability and performance are critical.

Key Specifications:

  • Bore Size: 4.010 inches
  • Ring Thickness: .043 inches
  • Radial Wall: .135 inches
  • Material: Performance steel construction
  • Design: Napier THM-13 configuration
  • Finish: Plain ring surface

MAHLE's precision manufacturing ensures proper sealing, reduced blow-by, and optimal compression for high-performance and racing applications. The Napier ring design provides superior oil control and durability under extreme conditions. Each ring set is manufactured to exacting tolerances for reliable fitment and long-term performance.

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Fast & Easy, although I ordered the wrong part and am waiting for direction as to how to return it, the service was great

Fast! Received exactly what I ordered in good shape!

This is my first time ordering from Autoplicity and there's a good reason part of simplicity is the name. I buy stuff online all the time an this website is definitly easy to navigate. The price was resonable and shipping turnaround was fast.

Fast and easy selection. Good price!

Fast shipping, great product. Nothing more needs to be said.

About as easy as it comes. Love being able to use Amazon for payment.

fast shipping, lowest prices.

Did not receive any confirmation emails. However contacted them VIA chat and they provided me with information. Shipping is on the slower side.

Fast shipping and good prices. I would shop this site again.

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