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Raypak Universal Governor Bypass Assembly for 336–408 Heaters — Part 018758F

Marsoni M251S
Sale price$125.00
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Get it in 3 business days with 1 day shipping. Friday, May 29
Raypak Universal Governor Bypass Assembly for 336–408 Heaters — Part 018758FThe Raypak 018758F Universal Governor Bypass Assembly Kit is a factory original replacement designed for Raypak pool heater models 336 through 408. This assembly plays a central role in regulating water flow and maintaining accurate temperature management inside the heater, shielding internal parts and boosting overall heating performance. Fabricated from materials that resist both high heat and corrosive pool chemicals, the kit comes complete with
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  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 1675 reviews
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john markisz
Carnegie, US
★★★★★ 5
Fits Well!
Size: 1 Count (Pack of 1)
Perfect replacement for my 2024 Honda Ridgeline OEM cabin air filer. Easy install via the glove box too. I also purchased their engine air filter which fits too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
J
Verified Purchase
JC
Cuba, US
★★★★★ 5
Save money
Size: 1 Count (Pack of 1)
Perfect fit. Took under two minutes to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
D
Verified Purchase
David J. Collins
Grantham, US
★★★★★ 4
Did not fit right out of box. Had to trim with scissors.
Size: 1 Count (Pack of 1)
Good value. A little flimsy but pretty much what I expected. My only real complaint is that out of the box it did not drop right in to my Honda Odyssey. I had to trim the tabs on one end with scissors for it to fit in to the filter housing.
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Reviewed in the United States on April 6, 2024
B
Verified Purchase
B. Renken
Charlottesville, US
★★★★★ 5
2016 Honda Accord fits perfect!
Size: 1 Count (Pack of 1)
Works great and fits perfect for my 2016 Honda Accord 2.4L
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
S
Verified Purchase
San Diego Jack
Chelsea, US
★★★★★ 5
Good Quality, Easy to Install
Size: 1 Count (Pack of 1)
Good product, easy to install, but make sure to locate the direction arrow for proper installation. This one didn't have a very clear arrow but figured it out quickly and the install was done in seconds. I recommend this product.
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Reviewed in the United States on February 24, 2026

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