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![Water Pump Block Adapters for Small Block Chevy Engines [3/4 in. NPT Female, Black]](https://www.jegs.com/images/mini_750/600/680/680-wp81s.jpg)
Vehicle Info NeededMEZIEREPART NUMBER: 680-WP81S
Water Pump Block Adapters for Small Block Chevy Engines [3/4 in. NPT Female, Black]
$7375
Ships on 11/19/2026
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Water Pump Block AdaptersSmall Block Chevy 3/4 in. NPT Female Port Black Anodized Finish Pair
These Meziere block adapters are the cleanest way to connect coolant lines to the engine when using a remote or radiator mounted water pump. They bolt to the water pump ports on Small Block Chevy engines.
Meziere WP81S Water Pump Block Adapters Features:
- Fits Small Block Chevy
- 3/4 in. NPT female connection
- Fully machined on all surfaces
- Clean connection for remote or radiator mounted electric pumps
- Black anodized finish
- Sold as a pair
Part TypeAdapter Fitting
BrandMEZIERE
Part CategoryPerformance Parts
Water Pump Adapter Block MaterialAluminum
Outlet QuantityOne
QuantityPair
Fitting Attachment 2Female Threads
MaterialAluminum
Inlet QuantityOne
Fitting Attachment 1Block connection
Part FitmentSemi Universal
Water Pump Adapter Block FinishBlack anodized
Fitting Size 2 (In.)3/4 NPT
FinishBlack Anodized
Vendor Part NumberWP81S
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
