Description
- Multiple Layer Steel Gaskets
- Direct Factory Replacement Part
- Multiple K Series Applications
- Genuine Honda Product
- Description
- Vehicle Fitment
- Included
-
Genuine Honda K20/K24 Head Gaskets
When you’re refreshing that high-revving K-Series, the last thing you want is a leaky seal between block and head. Genuine Honda K20/K24 head gaskets are the same multi-layer-steel (MLS) units that left the factory on every performance-minded RSX, Civic Si, TSX, Accord, CR-V and Element listed below, so you can bolt the head back on with total confidence.
Why Builders Choose the Factory Gasket
- OEM engineering, OEM reliability – three stainless-steel layers with a Viton-coated surface bite into both deck and head for a rock-solid seal under vacuum, boost or 9,000 RPM pulls.
- Exact bore & thickness options – 86 mm (K20) and 87 mm (K24) sizes maintain proper quench and compression without machining tricks.
- Boost- and nitrous-friendly – the embossed fire rings tolerate elevated cylinder pressures far better than composite aftermarket copies.
- No guesswork – every gasket carries the correct Honda part number stamped on the tab, so you know it fits the casting on your bench.
- Ready the moment your block’s cleaned – no messy sealants or additional coating required.
Variant Guide
- 12251-PRB-A01 – 86 mm K20A2/K20Z1 (02-06 RSX-S)
- 12251-PNC-003 – 86 mm K20A3 (02-05 Civic Si & Base RSX)
- 12251-RBC-004 – 86 mm K20Z3 (06-11 Civic Si)
- 12251-PPA-004 – 87 mm K24A1/A4 (02-06 CR-V, 03-07 Accord, 03-11 Element)
- 12251-RBB-004 – 87 mm K24A2 (04-08 TSX)
Installation Snapshot
Intermediate+ skill, 2–3 hrs; includes OEM MLS gasket only; reuse OE head bolts or upgrade as desired; no cutting, tuning or sealant required.
- 2002-2006 Acura RSX (Base, Type-S)2004-2008 Acura TSX2003-2007 Honda Accord
2002-2005 Honda Civic Si (EP3)2006-2011 Honda Civic Si (FG2/FA5)2002-2006 Honda CRV2003-2011 Honda Element - (1) MLS Head Gasket
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