Stop oil seepage at the rear cam bore with the Dorman Autograde Engine Camshaft Plug (P/N 555-070) — a steel cup-type expansion plug that presses into the rear camshaft bore and keeps engine oil where it belongs. It installs as a direct-fit replacement across a wide range of classic Ford and Mercury models, including the 1960-1979 Ford Ranchero, 1964-1973 Ford Mustang, 1966-1996 Ford Bronco, 1967-1988 Mercury Cougar, 1975-1996 Ford F-150, 1975-1997 Ford F-350, 1996-2001 Ford Explorer and 1997-2001 Mercury Mountaineer — see the Buyer's Guide tab for the full list.
The rear camshaft bore plug sits at the back of the engine block behind the camshaft and seals the cam bearing bore against engine oil loss. If this plug corrodes, works loose, or was removed and never replaced, oil can seep out at the rear of the block — signs this plug may need attention include an oil leak at the back of the engine, oil accumulating near the bellhousing area, or unexplained oil consumption with no visible external leak elsewhere. Because it is a press-fit cup plug, it should be driven squarely into the bore with an appropriate driver to the correct seating depth; consult the vehicle service information for the proper installation procedure.
Fits: 1960-1970 Ford Falcon · 1960-1979 Ford Ranchero · 1960-1969 Mercury Comet · 1961-1966 Ford Econoline · 1962-1970 Ford Fairlane · 1963-1974 Ford Galaxie 500 · 1964-1973 Ford Mustang · 1965-1986 Ford LTD · 1966-1996 Ford Bronco · 1975-1996 Ford F-150 · 1975-1997 Ford F-350 · 1996-2001 Ford Explorer — see the Buyer's Guide tab for the full list.
Replaces / cross-references: 7HA6266A · C20Z6266A · C20Z6266B · C5AZ6026H · 387027C1 · EPS-71 · model 555-070 · Part Eazy SKU P0735PA-555-070
Does this camshaft plug fit my Ford or Mercury?
This Dorman 555-070 fits 82 Ford and Mercury vehicles from 1960 through 2001, including the Mustang, Bronco, F-150, F-350, Explorer, Ranchero and many more. Check the Buyer's Guide tab for the full fitment list.
What part numbers does this plug replace or cross-reference?
It cross-references 7HA6266A, C20Z6266A, C20Z6266B, C5AZ6026H, 387027C1, and EPS-71. The Dorman manufacturer part number is 555-070.
How do I know if my camshaft plug has failed?
Signs include an oil leak at the rear of the engine block, oil pooling near the bellhousing, or unexplained oil loss with no obvious external leak. A corroded, loose, or missing plug is a common cause.
Is this a direct-fit replacement — no modification needed?
Yes. The 555-070 is engineered to match the original part's dimensions (approx. 2-1/8 in. diameter, 0.360 in. cup height) and presses into the rear cam bore without any cutting or threading.
How does a camshaft plug work?
It is a steel cup-type expansion plug press-fit into the rear camshaft bore. It seals that bore in the engine block, preventing engine oil from escaping at the back of the engine behind the camshaft.
WARNING: This product can expose you to chemicals including lead and phthalates, 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.
