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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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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
4.5 ★★★★★
Based on 967 reviews
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Product Reviews
★★★★★ 5
Good oil and price
Size: Single of 2.6 fl. oz, Number of Items: 1
Good oil good price. †
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 4
Stinky, but Made in USA
Size: 2.6 fl. oz (Pack of 12), Number of Items: 12
I bought this product because it was one of the few 40:1/50:1 synthetic 2 cycle oils on Amazon. I have machines that take both, so it's a nice thing to have just 1 gas mix. Anyway, I'd say this product works. My leaf blower hasn't seized up or anything after hours of use, but this oil is noticeably more stinky than the last random, generic product I bought at the farm store. It's a kind of harsh pollution kind of smell. It's hard to describe. It doesn't put out a cloud of smoke. It's just stinky. Not the smell of what I'm familiar with the old, non-synthetic 2-cycle oils of the past. Anyway, I thought you should know. I gave this review an extra star for Made in USA.
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Reviewed in the United States on October 5, 2024
★★★★★ 5
Reasonable price
Size: Single of 13 fl. oz, Number of Items: 1
Great product
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Worked great
Size: Single of 13 fl. oz, Number of Items: 1
That’s what I needed it to do
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Get the larger one if you use more than a gallon a year.
Size: Single of 2.6 fl. oz, Number of Items: 1
Exactly as ordered. Price point is fine for mixing in 1 gallon of gas. I only use 1 gallon of this mix every year in my weed wackers.
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Reviewed in the United States on April 26, 2026
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