SKU: 46860-4 | UPC: 807298041643
Manley 02+ Acura RSX K20A-A2-A3 DOHC V-Tech / Mitsubishi (Various apps) Ring Set
Manley 46860-4 piston ring set fits 02+ Acura RSX K20A2/A3 DOHC VTEC engines and Mitsubishi 4G63 applications with 86mm bore. These rings seal tightly to boost compression and cut blow-by during high-rev engine rebuilds. Deliver consistent power for Acura RSX, Honda Civic Si, Hyundai Genesis Coupe, Mitsubishi Lancer Evolution, Eclipse, and Eagle Talon platforms.
Key Features
- 86mm Bore Size: Direct match for stock and performance pistons in K20A and 4G63 engines
- Ring Thickness 1.2/1.2/2.8mm: Thin design lowers friction for fast break-in and sustains high RPM loads
- Steel Top Ring Gas Nitrided: Resists wear and holds shape under heat in turbocharged or naturally aspirated builds
- Cast Iron Napier Second Ring: Reverse bevel controls side pressure for steady operation and long service
- Three-Piece Oil Ring Flex-Vent: Low-tension setup minimizes oil consumption while controlling cylinder wall oil
Product Notes
- File rings to clearance for precise piston fitment during assembly
- Store in dry environment to maintain coatings prior to installation
- Packaged in protective plastic sleeve inside cardboard box for damage-free delivery
Installation Notes
- Professional installation recommended.
- Hone cylinders to 86.000-86.020mm with plateau finish before ring installation
- Check end gaps: Top 0.012-0.020in Second 0.012-0.020in Oil 0.015-0.055in
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Acura | RSX | Base |
| 2002-2004 | Acura | RSX | Type-S |
| 1990-1998 | Eagle | Talon | TSi |
| 2002-2005 | Honda | Civic | Si |
| 2010-2013 | Hyundai | Genesis Coupe | 2.0T |
| 2010-2013 | Hyundai | Genesis Coupe | 2.0T Premium |
| 2010-2013 | Hyundai | Genesis Coupe | 2.0T R-Spec |
| 2010 | Hyundai | Genesis Coupe | 2.0T Track |
| 2008 | Mitsubishi | Lancer Evolution | GSR |
| 2010-2014 | Mitsubishi | Lancer Evolution | GSR |
| 2008 | Mitsubishi | Lancer Evolution | MR |
| 2010-2014 | Mitsubishi | Lancer Evolution | MR |
| 2010-2011 | Mitsubishi | Lancer Evolution | MR Touring |
| 2003-2006 | Mitsubishi | Lancer Evolution | |
| 1990-1994 | Plymouth | Laser | RS |
| 1990-1994 | Mitsubishi | Eclipse | GS |
| 1990-1999 | Mitsubishi | Eclipse | GST |
| 1990-1999 | Mitsubishi | Eclipse | GSX |
| 1996-1999 | Mitsubishi | Eclipse | Spyder GST |
Why Choose Manley?
- Engineered and manufactured in the USA for consistent quality
- Proven in drag racing and circuit applications worldwide
- Advanced metallurgy handles extreme temperatures and pressures
Frequently Asked Questions
- Q: Does this fit 2002-2006 Acura RSX K20A2 engines?
A: Yes the 46860-4 ring set is direct for K20A2/A3 86mm bores in RSX Base and Type-S models - Q: What materials are used in these rings?
A: Top ring is gas nitrided steel second is cast iron Napier and oil ring uses steel rails with expander for durability - Q: What is the warranty on Manley rings?
A: Covered under Manley limited lifetime warranty against manufacturing defects when installed correctly
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: 6 x 4 x 1 inch box
- Weight: 0.45 lbs





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