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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Golden Eagle Mfg Advanced Seal K-Series Head Gasket (PRB-A01 Style, 86-90mm BoreGolden Eagle Mfg Advanced Seal K Series Head Gaskets (PRB A01 Style) are engineered for high horsepower K series builds and reliable daily driving. Designed to replace OEM part numbers 12251 PRB A01, 12251 PNA 004, and 12251 PNC 003, these gaskets are perfect for performance enthusiasts and professional racers alike. Fitment: Honda Acura K20A2, K20A3, K20Z1: 2001 2006 Acura RSX, RSX Type S, Honda Civic Si (2. 0L, PRB head, 86mm stock bore). Honda
Golden Eagle Mfg Advanced Seal K-Series Head Gaskets (PRB-A01 Style) are engineered for high-horsepower K-series builds and reliable daily driving. Designed to replace OEM part numbers 12251-PRB-A01, 12251-PNA-004, and 12251-PNC-003, these gaskets are perfect for performance enthusiasts and professional racers alike.
Fitment:
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Honda/Acura K20A2, K20A3, K20Z1: 2001-2006 Acura RSX, RSX Type-S, Honda Civic Si (2.0L, PRB head, 86mm stock bore).
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Honda/Acura K24A1, K24A2, K24A4: 2002-2008 Honda CR-V, Acura TSX, Honda Accord/Element (2.4L, 87mm stock bore).
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Note: Compatible with stock or bored/sleeved blocks up to 90mm. Not compatible with K20Z3, K20Z4, or K24Z3 engines due to coolant passage and oil return differences. For these engines or K24A/K20Z3 Frankenstein builds, see our separate listing for the K20Z3/K24Z3 Advanced Seal Head Gasket (12251-RBC-004 style, 86-91mm bore), which includes guidance for hybrid conversions requiring block modifications (e.g., oil return channel welding).
Features:
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High-Performance Design: Multi-Layer Steel (MLS) construction with pre-coated stainless steel for superior sealing in turbocharged and high-horsepower applications (drag racing, rallycross, time attack).
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Precision Manufacturing: CNC-machined cylinder bores with a ±0.001-inch tolerance, hand-deburred for perfect fitment. Thickness: 0.033 inches after crush/installation.
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Enhanced Sealing: Compatible with Golden Eagle’s copper O-ring sleeve service, providing robust sealing for high-pressure combustion chambers.
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Versatile Bore Sizes: Available in 86mm to 90mm to match stock or overbored K20A2/Z1 and K24A blocks.
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Proven Reliability: Trusted in top-tier race cars worldwide.
Installation Notes:
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Ensure block and head surfaces are properly decked for optimal sealing, especially for bored blocks.
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For K24A blocks, verify coolant and oil passage alignment with the head (PRB or RBB casting).
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Professional installation recommended for modified or high-performance builds.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 2002 reviews
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Product Reviews
★★★★★ 5
Great buy
Style: 20x25x2
Great fit, quality, construction, and less expensive than buying them at a regular store.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Fantastic Filters!!
Style: 20x25x1
Great filters for my 5 ton unit- well made and designed for airflow and hold up! Very well! MUCH BETTER than Lowes or HD FILTERS
Whistling stopped when I changed to the filters!!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
A lot of quality filters for little cost.
Style: 16x20x1, Style: 16x20x1
Been using these for months, great quality. No issues what so ever. I compared price to the 2 main big box stores and this is the best for your bucks. You get a lot more and they are of the same quality. I used to get mine from a big box store with military discount of 10% and this is still a better deal. They fit exactly like the filter I took out, so size is the same. I live FL and run my AC constantly. These last about 2-3 months each. They do no lose their rigidity. They are built with very high quality material. They catch a lot of dust, you can see how dirty they are when replaced.
PROS
- great quality and last 2-3 months in my AC running constantly
- you get a lot for your money when compared to the big box stores
- catch a lot of dirt, filters are really dirty after use
- very rigid which makes it easy to installation
- reinforced wire mesh
CONS
- None
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Top quality filters at a good price.
Style: 20x30x1
These filters are good quality. They are reinforced and hold their shape. They fit perfectly in my filter holder.
The thing I like is that the filters were bundled together and shipped in a sturdy box. Other filters I have ordered showed up in a flimsy box and were damaged.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Excellent to have on hand
Style: 16x25x1
Excellent, time-saving purchase. Sturdy, easy to install.
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Reviewed in the United States on May 27, 2026