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1969-70 Ford Mustang Boss 429 rebuilt water pump cast # C8SE with 3.750" dia Imp

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SKU 331818574396

Rebuild Services

Up for bid is a professionally rebuilt water pump for the following application:

1969-70 Ford Mustang Boss 429 with 429 Cid V8 engine

This water pump has a casting number C8SE-8505-E and we have 2 dates available with casting date of  8-A-11 (Jan 11 1968) which is the Blue one pictured above and 0-G-14 (July 14 1970) which is correct for a 1970 model year.

This Boss Hi-Po water pump comes with a 3.750" diameter 6-fin cast iron impeller. The standard 429 Cid impeller is 4.500" in diameter.
This is similar to the Holman Moody and the Nascar version except this has a straight bypass tube not the 90 degree modified bypass tube.

There is a $200.00 refundable core charge upon the return of your rebuildable OEM C8SE-8505-E core with the original 3.750" impeller or $100.00 refund for the standard 4.500" impeller core.

This may fit other makes and models using the 429 Cid engine.

This pump comes with a new mounting gasket and a 90 day warranty against leaking.

NOTE: We can rebuild your old water pump, just inquire through the link on the top menu and we can give you a quote.

If you have any questions regarding this pump contact us by email

Hart Bros Core sells and rebuilds automotive water pumps


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