Custom solid machined brass. This will last much longer than the original thin brass stamping. .75” diameter restrictor hole dimension like original. Works with all correct 351C, 351M, 400 thermostats.
See 8575-5BH for correct thermostat.
Ford Mustang & Pantera Years:
1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.
Mercury Cougar Years:
1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.
Ford Falcon and Ranchero Years:
1970 (70)
Above years shown are used for searches and are not application listings.
Ford Fairlane and Ranchero Years:
1970 (70)
Above years shown are used for searches and are not application listings.
Ford Torino and Ranchero Years:
1970 (70), 1971 (71)
Above years shown are used for searches and are not application listings.
Ford Truck F1, F2, F3, F100, F150, F250, F350 Years:
1978 (78), 1979 (79), 1980 (80), 1981 (81), 1982 (82)
Above years shown are used for searches and are not application listings.
Ford Bronco Years:
1978 (78), 1979 (79), 1980 (80), 1981 (81), 1982 (82)
Above years shown are used for searches and are not application listings.
NPD Part Number : 8K517-1 Manufacturer Reference #'s: TBP/BPP, D0AZ-8K517-A
1970-1973 MUSTANG 351C
1970-1973 COUGAR 351C
1970-1971 TORINO 351C
1977-1979 F100-F350 351M, 400, ** NOT USED, RESTRICTOR IS CAST INTO BLOCK **
1980-1982 F100-F350 351M, 400, ** NOT USED, RESTRICTOR IS CAST INTO BLOCK **
1978-1981 BRONCO 351M, 400, ** NOT USED, RESTRICTOR IS CAST INTO BLOCK **
0-0 PANTERA
1970-1970 FALCON (FROM 1/1/70), 351C
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Fit like a glove, if I needed another one, I would definitely buy it
Submitted on August 17, 2020 by Robert D.
YES I would recommend this product.
Quality
Value
Better than original great quality part
Submitted on March 04, 2022 by Ed D.
YES I would recommend this product.
Quality
Value
The exact part required for my 351 C engine. This part was not available from other vendors.
Submitted on July 09, 2022 by Ed B.
YES I would recommend this product.
Quality
Value
Fit perfectly
Submitted on June 11, 2023 by John M.
YES I would recommend this product.
Quality
Value
Works great easy to install solve my running hot problems 351 Cleveland
Submitted on July 04, 2023 by David C.
YES I would recommend this product.
Quality
Value
If you’re Cleveland doesn’t have this in the cooling system NPD has your back.
Submitted on March 16, 2024 by Joe L.
YES I would recommend this product.
Quality
Value
Waterflow restricter did not fit. Diameter was to small and was not a press fit like original. Could be removed with finger. Installed original back in block.
Submitted on November 30, 2024 by William S.
Quality
Value
In Stock!