MAHLE Performance RBT Grey Iron Second Compression Ring 4.030in Bore 5/64in
⚠ Call for Availability
This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$99.50
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.
MAHLE 302-0271 is sold as an individual second compression ring sized for 4.030in bore with a 5/64in cross section. It is built from grey iron.
Key Features
- Second ring duty is roughly 80% oil control and up to 20% compression control
- Grey iron works well in moderate performance service and is a common choice for second ring duty.
- The reverse-twist taper faced design uses an inside bevel to create torsional twist, which limits oil migration up behind the ring while the taper face scrapes the cylinder wall.
Product Details
- Brand: MAHLE Performance
- Product type: Second Compression Ring
- Bore diameter: 4.030 in
- Axial height: 5/64in
- Base material: Grey iron
- Ring type: RBT
- Position: Lower compression ring (second)
- Manufacturer Part Number: 302-0271
Shipping Height: 1.13
Shipping Length: 4.75
Shipping Width: 4.75