Specifications
- Brand
- Mahle OE
- Part #
- 3021204
- UPC
- 027067902269

Mahle Rings Steel Napier THM 4.000 x 1.5MM .151 RW Plain Ring Set
$39.62
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Mahle OE steel Napier piston rings. Part# 3021204. Direct fit.
Key Features
- Fits a 4.000 inch bore.
- Top ring thickness is 1.5mm.
- Ring groove width is .151 inches.
- Features a plain ring finish.
- Includes Napier hook design for improved oil control.
Product Details
Mahle OE steel Napier piston rings are designed for a 4.000 inch bore. These rings feature a 1.5mm top ring thickness and a .151 inch ring groove width, with a plain finish. They are a well-built replacement for your engine's piston rings.
The Napier hook design on the top ring helps to improve oil control and reduce blow-by, which can lead to better engine performance and efficiency. This set is a solid option for engine rebuilds where reliable ring seal is critical. Remember that these rings are not CARB approved and cannot be shipped to California.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021204
- UPC
- 027067902269
Frequently Asked Questions
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Mahle Rings Steel Napier THM 4.000 x 1.5MM .151 RW Plain Ring Set






