MAHLE Performance HV385 Steel Top Compression Ring 4.500in Bore 1/16in
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$374.56
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
A top compression ring from MAHLE's open-stock performance ring program, sized for 4.500in bore at 1/16in axial height. It is built from steel with MAHLE's patented HV385 HVOF thermal spray face coating.
Key Features
- Barrel face profile for fast break-in and continued cylinder wall contact as the piston rocks at TDC and BDC
- HV385 is MAHLE's patented high velocity oxygen fuel thermal spray face coating, applied at supersonic speed to produce a dense, well-bonded ring face. Coated top rings are micro-polished on the side and face sealing surfaces for quick seating and a uniform barrel face profile.
Product Details
- Brand: MAHLE Performance
- Product type: Top Compression Ring
- Bore diameter: 4.500 in
- Axial height: 1/16in
- Radial wall thickness: .190 in
- Face coating: HV385
- Position: Upper compression ring (top)
- Manufacturer Part Number: 301-1278
Shipping Height: 1.13
Shipping Length: 4.75
Shipping Width: 4.75