Specifications
- Brand
- Mahle OE
- Part #
- 3021265
- UPC
- 027067002860

Mahle Rings Performance Napier THM-13 4.140 x .043 Plain Ring Set
$56.45
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Mahle OE Piston Rings THM-13 set for 4.140" bore. Not CARB approved.
Key Features
- This is a Mahle Rings Performance Napier THM-13 plain ring set.
- Features a 4.140-inch bore size.
- Ring thickness is 0.043 inches.
- Includes Napier hook design on the oil ring for improved oil control.
- Not CARB approved and cannot be shipped to California.
Product Details
These Mahle Performance Napier piston rings feature a 4.140-inch bore size and a 0.043-inch ring thickness, designed for improved oil control. The Napier hook design on the oil ring helps to scrape oil from the cylinder walls more effectively, reducing oil consumption and blow-by. This set is a solid option for engine rebuilds where reliable performance and proper sealing are key.
Crafted with durable materials, these rings are built to withstand the rigors of engine operation. The precise manufacturing ensures a good seal between the piston and cylinder wall, which is crucial for maintaining compression and power. Proper installation is important for these rings to function as intended, ensuring they seat correctly in the piston grooves and cylinder bore.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021265
- UPC
- 027067002860
Frequently Asked Questions
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Mahle Rings Performance Napier THM-13 4.140 x .043 Plain Ring Set






