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![RS-MR100-4000 Performance 4 in. Moly Ring Set [5/64, 5/64, 3/16 in.]](https://www.jegs.com/images/mini_750/900/915/915-rs-mr1004000.jpg)
Vehicle Info NeededDSS RACINGPART NUMBER: 915-RS-MR1004000
RS-MR100-4000 Performance 4 in. Moly Ring Set [5/64, 5/64, 3/16 in.]
$8300
Ships on 09/14/2026
Lowest Price Guarantee4 in.
- Performance Moly Ring Set
- Fits 4 in. Bore
- Naturally Aspirated, Street/Strip, Mild Performance Applications
- Cast Iron 5/64 in. Moly Faced Top Ring
- Cast Iron 5/64 in. 2nd Ring
- Standard Tension 3/16 in. Oil Rings
- 8-Cylinder Set
This DSS Racing RS-MR100-4000 Piston Ring Set is designed to meet the rigorous demands of performance enthusiasts and racers. With a focus on precision engineering and durability, they are trusted by racing teams, engine builders, and automotive professionals worldwide.
Rings for Mild Street Machines
DSS Racing MR-Moly Ring Sets are high-quality rings for mild performance engines.
Part TypePiston Ring
Product LineDSS Racing MR-Moly Ring Sets
BrandDSS RACING
Package Height2.0
Package Width4.0
Package Length8.5
Weight1.5 PG
Part CategoryPerformance Parts
Oil Ring MaterialStainless Steel
2nd Ring Width5/64 in.
2nd Ring Facing MaterialCast Iron
File FitNo
Oil Ring Width3/16 in.
GaplessNo
Top Ring Width5/64 in.
2nd Ring MaterialCast Iron
Top Ring Facing MaterialMoly
Gas PortedNo
Top Ring MaterialCast Iron
Part FitmentSemi Universal
Oil Ring TensionStandard
Bore4 in. (101.60 mm)
Vendor Part NumberRS-MR100-4000
Package Qty1
Package TypeEA
No Questions
No Reviews
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