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Product Details
The Honda OEM 86mm Cylinder Head Gasket is a genuine factory replacement designed for the 2002-2006 Acura RSX Type-S equipped with the K20A2 and K20Z1 2.0L DOHC i-VTEC engines. Manufactured to Honda's original equipment specifications, this multi-layer steel (MLS) head gasket provides a reliable seal between the cylinder head and engine block, helping maintain proper cylinder compression while preventing engine oil, coolant, and combustion gases from leaking between passages.
The cylinder head gasket is one of the most critical sealing components in your K-Series engine. It must withstand high combustion pressures, extreme operating temperatures, and constant thermal expansion while maintaining a dependable seal. A damaged or failing head gasket can result in coolant loss, engine overheating, reduced compression, oil contamination, and decreased engine performance.
Featuring an 86mm bore and approximately 0.030-inch thickness, this genuine Honda head gasket is designed to maintain the factory sealing characteristics of compatible K20 engines. Its multi-layer steel construction provides durability and consistent sealing performance under normal engine operating conditions.
Whether you're repairing a blown head gasket, rebuilding your K20A2 or K20Z1, replacing a cylinder head, or completing a compatible K-Series engine swap, this genuine Honda replacement delivers the precision fitment and dependable quality expected from original equipment components.
Features
- Genuine Honda OEM Part: Manufactured to Honda's original factory specifications for reliable quality and precise fitment.
- 86mm Bore: Designed for compatible Honda K20 engines with the factory 86mm cylinder bore.
- 0.030-Inch Gasket Thickness: Maintains the original-style gasket thickness for compatible engine applications.
- Multi-Layer Steel Construction: Features durable MLS construction designed to withstand engine operating temperatures and combustion pressures.
- K20A2 / K20Z1 Compatibility: Direct factory replacement for 2002-2006 Acura RSX Type-S engines.
- Reliable Combustion Sealing: Helps maintain proper cylinder compression and prevent combustion gases from escaping.
- Oil and Coolant Passage Sealing: Helps prevent fluid leakage and cross-contamination between engine passages.
- Factory-Matched Design: Features appropriately positioned cylinder openings, coolant passages, oil passages, and mounting provisions.
- High-Temperature Durability: Engineered to maintain sealing performance through normal engine heat cycles.
- Restores Engine Sealing: Ideal for replacing damaged or failed head gaskets during engine repairs.
- Engine Rebuild Essential: Excellent replacement when rebuilding or servicing a K20 engine.
- OEM Fitment and Quality: Designed to work with compatible factory cylinder heads and engine blocks.
- Honda Part Number: 12251-PRB-A01.
| Part Number: | 12251-PRB-A01 |
| Brand: | Honda |
| Bore: | 86mm |
| Head Gasket Thickness: | .030 in |
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2002 | Acura | RSX | Type-S |
| 2003 | Acura | RSX | Type-S |
| 2004 | Acura | RSX | Type-S |
| 2005 | Acura | RSX | Type-S |
| 2006 | Acura | RSX | Type-S |
| 2006 | Honda | Civic | Si |
| 2007 | Honda | Civic | Si |
| 2008 | Honda | Civic | MUGEN Si |
| 2008 | Honda | Civic | Si |
| 2009 | Honda | Civic | Si |
| 2010 | Honda | Civic | Si |
| 2011 | Honda | Civic | Si |
3 Reviews ★★★★★
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Vanessa Balboa | November 19th, 2017
Blew my head gasket and this fix the issue no leaksat all oem is the best
ray | July 15th, 2015
Fit perfect on my k20z1
Clinton Proctor | January 13th, 2012
Perfect fit, and no leaks when applied to my new head. this was used on a a2 head going on a3 block.
Perfect!!! Better price than any autoparts house.
