★★★★★ 5
Great product
Size: CF10134&CA11476
Price great. Fit perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
Corvette Belt. Water Pump/Idler - 327 Small Block - Reprodtn - GM# 3843164: 1963-1965
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Corvette Belt. Water Pump/Idler - 327 Small Block - Reprodtn - GM# 3843164: 1963-1965Restore authentic engine bay accuracy for your Corvette with this reproduction water pump idler belt crafted for the 327 smallblock V8. Styled and measured to mirror GMs original specification, it carries GM part number 3843164, ensuring a precise, factoryfit replacement for 19631965 models. GM part number: 3843164 authentic reproduction for correct fit and appearance Year and engine coverage: fits 1963 327 smallblock with 340hp or 360hp; fits
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Your Corvette Belt. Water Pump/Idler - 327 Small Block - Reprodtn - GM# 3843164: 1963-1965 orders ship within 1-2 business days.
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Exchange/Return Notes
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4.5 ★★★★★
Based on 1232 reviews
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Product Reviews
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza.
I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph.
With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg.
Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
