Corvette Belt. Water Pump/Idler - 327 SB 365hp - Reproductn - GM# 3845643: 1964

Corvette Belt. Water Pump/Idler - 327 SB 365hp - Reproductn - GM# 3845643: 1964

Marsoni

M251S

$62.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Corvette Belt. Water Pump/Idler - 327 SB 365hp - Reproductn - GM# 3845643: 1964For the 1964 Corvette, this Corvette Belt for Water Pump Idler is a faithful reproduction designed specifically for the 327 smallblock (327 SB) with 365hp. Carrying GM# 3845643, its built to align with the original factory drive under the hood, ensuring the water pump and idler pulley operate with authentic timing and tension. Why this matters for your restoration or maintenance project: authentic fitment minimizes fitment issues and keeps the engine

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Comfy but cheaply made. I bought these for the price and expected them to be not the best quality but they are even less than I expected. Please also note that they run small. I got a 10-11 since I wear 11 shoe and Amazon recommended this size. I think a size larger would have been better. Not worth returning though. I’ll just wear them this winter if they last that long and get a better brand next time.

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Reviewed in the United States on December 25, 2025

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L R

Belleville, US

★★★★★ 5

I will buy these again.

Size: 12-13, Color: Cable Knit Brown

These are great. They’re warm and comfortable.

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Reviewed in the United States on May 5, 2026

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