Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 506 seal has a .610" OD and fits applications with 11/32" valves and .494" OD guides.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1969-1974 | Ford | Country Sedan | Base |
| 1969-1974 | Ford | Country Squire | Base |
| 1969-1972 | Ford | Custom | Base |
| 1969-1976 | Ford | Custom 500 | Base |
| 1975-1976 | Ford | Elite | Base |
| 1976-1977 | Ford | F-100 | Base |
| 1975-1977,1979 | Ford | F-100 | Custom |
| 1975-1977 | Ford | F-100 | Northland |
| 1975-1977,1979 | Ford | F-100 | Ranger |
| 1979 | Ford | F-100 | Ranger Lariat |
| 1975-1977,1979 | Ford | F-100 | Ranger XLT |
| 1977 | Ford | F-100 | XLT |
| 1976-1978 | Ford | F-150 | Base |
| 1975-1979 | Ford | F-150 | Custom |
| 1975-1978 | Ford | F-150 | Northland |
| 1975-1979 | Ford | F-150 | Ranger |
| 1978-1979 | Ford | F-150 | Ranger Lariat |
| 1975-1979 | Ford | F-150 | Ranger XLT |
| 1977 | Ford | F-150 | XLT |
| 1976-1978,1983-1986 | Ford | F-250 | Base |
| 1975-1979,1987-1992 | Ford | F-250 | Custom |
| 1975-1978 | Ford | F-250 | Northland |
| 1975-1979 | Ford | F-250 | Ranger |
| 1978-1979 | Ford | F-250 | Ranger Lariat |
| 1975-1979 | Ford | F-250 | Ranger XLT |
| 1983-1994 | Ford | F-250 | XL |
| 1983 | Ford | F-250 | XLS |
| 1977,1983-1984,1993-1994 | Ford | F-250 | XLT |
| 1985-1992 | Ford | F-250 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-350 | Base |
| 1975-1979,1987-1992 | Ford | F-350 | Custom |
| 1975-1978 | Ford | F-350 | Northland |
| 1975-1979 | Ford | F-350 | Ranger |
| 1978-1979 | Ford | F-350 | Ranger Lariat |
| 1975-1979 | Ford | F-350 | Ranger XLT |
| 1983-1994 | Ford | F-350 | XL |
| 1983 | Ford | F-350 | XLS |
| 1977,1983-1984,1993-1994 | Ford | F-350 | XLT |
| 1985-1992 | Ford | F-350 | XLT Lariat |
| 1970 | Ford | Fairlane | 500 |
| 1969-1974 | Ford | Galaxie 500 | Base |
| 1969-1970 | Ford | Galaxie 500 | XL |
| 1972-1976 | Ford | Gran Torino | Base |
| 1974-1976 | Ford | Gran Torino | Brougham |
| 1974-1975 | Ford | Gran Torino | Elite |
| 1972-1975 | Ford | Gran Torino | Sport |
| 1972-1976 | Ford | Gran Torino | Squire |
| 1969-1978 | Ford | LTD | Base |
| 1970-1976 | Ford | LTD | Brougham |
| 1975-1978 | Ford | LTD | Country Squire |
| 1975-1978 | Ford | LTD | Landau |
| 1969-1971 | Ford | Mustang | Base |
| 1969-1970 | Ford | Mustang | Boss 429 |
| 1970-1971 | Ford | Mustang | Grande |
| 1970-1971 | Ford | Mustang | Mach 1 |
| 1969-1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1970-1977 | Ford | Ranchero | 500 |
| 1970-1971 | Ford | Ranchero | Base |
| 1970-1977 | Ford | Ranchero | GT |
| 1970-1976 | Ford | Ranchero | Squire |
| 1968-1976 | Ford | Thunderbird | Base |
| 1971 | Ford | Torino | 500 |
| 1970-1976 | Ford | Torino | Base |
| 1970-1971 | Ford | Torino | Brougham |
| 1970-1971 | Ford | Torino | Cobra |
| 1970-1971 | Ford | Torino | GT |
| 1970-1971 | Ford | Torino | Squire |
| 1970-1971 | Ford | Torino | Super Cobra Jet |
| 1968-1978 | Lincoln | Continental | Base |
| 1968-1971 | Lincoln | Mark III | Base |
| 1972-1976 | Lincoln | Mark IV | Base |
| 1977-1978 | Lincoln | Mark V | Base |
| 1969-1974 | Mercury | Colony Park | Base |
| 1970-1971,1973 | Mercury | Cougar | Base |
| 1970 | Mercury | Cougar | Boss 429 |
| 1970 | Mercury | Cougar | Cobra Jet |
| 1970-1971,1973-1976 | Mercury | Cougar | XR-7 |
| 1970-1971 | Mercury | Cyclone | Base |
| 1970-1971 | Mercury | Cyclone | GT |
| 1970-1971 | Mercury | Cyclone | Spoiler |
| 1975-1978 | Mercury | Grand Marquis | Base |
| 1969-1970 | Mercury | Marauder | Base |
| 1969-1970 | Mercury | Marauder | X-100 |
| 1969-1978 | Mercury | Marquis | Base |
| 1969-1978 | Mercury | Marquis | Brougham |
| 1975-1976 | Mercury | Marquis | Colony Park |
| 1970-1974,1976 | Mercury | Montego | Base |
| 1975 | Mercury | Montego | Brougham |
| 1972-1973 | Mercury | Montego | GT |
| 1970-1976 | Mercury | Montego | MX |
| 1970-1974,1976 | Mercury | Montego | MX Brougham |
| 1976 | Mercury | Montego | MX Villager |
| 1970-1975 | Mercury | Montego | Villager |
| 1969-1974 | Mercury | Monterey | Base |
| 1969-1974 | Mercury | Monterey | Custom |
- 1968-ford-thunderbird-base-esi7153999
- 1969-ford-ltd-base-esi8842149
- 1969-ford-mustang-base-esi6837111
- 1969-ford-mustang-boss-429-esi9778919
- 1969-ford-thunderbird-base-esi5081502
- 1970-ford-mustang-base-esi4006782
- 1970-ford-mustang-boss-429-esi4393128
- 1970-ford-mustang-grande-esi7163013
- 1970-ford-mustang-mach-1-esi6668959
- 1970-ford-thunderbird-base-esi4985076
- 1971-ford-ltd-base-esi3899271
- 1971-ford-ltd-brougham-esi8201426
- 1971-ford-mustang-base-esi7849033
- 1971-ford-mustang-grande-esi7516513
- 1971-ford-mustang-mach-1-esi1707348
- 1971-ford-thunderbird-base-esi1612364
- 1972-ford-thunderbird-base-esi3876593
- 1973-ford-thunderbird-base-esi3741631
- 1974-ford-thunderbird-base-esi8941832
- 1975-ford-ltd-base-esi6907593
- 1975-ford-ltd-brougham-esi7276871
- 1975-ford-ltd-country-squire-esi5089491
- 1975-ford-ltd-landau-esi1182480
- 1975-ford-thunderbird-base-esi7193865
- 1976-ford-ltd-base-esi1388679
- 1976-ford-ltd-brougham-esi6259995
- 1976-ford-ltd-country-squire-esi9866878
- 1976-ford-ltd-landau-esi8004023
- 1976-ford-thunderbird-base-esi8089651
- 1977-ford-ltd-base-esi7008829
- 1977-ford-ltd-country-squire-esi1794756
- 1977-ford-ltd-landau-esi7408150
- 1978-ford-ltd-base-esi9919113
- 1978-ford-ltd-country-squire-esi2114768
- 1978-ford-ltd-landau-esi4288457
- 1983-ford-f-250-base-esi4835777
- 1983-ford-f-250-xl-esi7611237
- 1983-ford-f-250-xls-esi5156867
- 1983-ford-f-250-xlt-esi1261246
- 1983-ford-f-350-base-esi6242336
- 1983-ford-f-350-xl-esi6756716
- 1983-ford-f-350-xls-esi9809534
- 1984-ford-f-250-base-esi6910994
- 1984-ford-f-250-xl-esi3449896
- 1984-ford-f-250-xlt-esi8345099
- 1984-ford-f-350-base-esi4764727
- 1984-ford-f-350-xl-esi5743159
- 1984-ford-f-350-xlt-esi1925503
- 1985-ford-f-250-base-esi5473160
- 1985-ford-f-250-xl-esi3482515
- 1985-ford-f-250-xlt-lariat-esi7781816
- 1985-ford-f-350-base-esi5108661
- 1985-ford-f-350-xl-esi7413774
- 1985-ford-f-350-xlt-lariat-esi7764015
- 1986-ford-f-250-base-esi6593820
- 1986-ford-f-250-xl-esi5411580
- 1986-ford-f-250-xlt-lariat-esi2425043
- 1986-ford-f-350-base-esi3301933
- 1986-ford-f-350-xl-esi7111331
- 1986-ford-f-350-xlt-lariat-esi5052622
- 1987-ford-f-250-custom-esi1167930
- 1987-ford-f-250-xl-esi2338759
- 1987-ford-f-350-custom-esi4113523
- 1987-ford-f-350-xlt-lariat-esi6640275
- 1988-ford-f-250-custom-esi8062836
- 1988-ford-f-250-xl-esi8661394
- 1988-ford-f-350-custom-esi1523977
- 1988-ford-f-350-xl-esi5743144
- 1988-ford-f-350-xlt-lariat-esi3834535
- 1989-ford-f-250-custom-esi6970188
- 1989-ford-f-250-xl-esi8290841
- 1989-ford-f-350-custom-esi8887603
- 1989-ford-f-350-xl-esi5144002
- 1989-ford-f-350-xlt-lariat-esi1370013
- 1990-ford-f-250-custom-esi8915611
- 1990-ford-f-250-xl-esi7471074
- 1990-ford-f-250-xlt-lariat-esi1011928
- 1990-ford-f-350-custom-esi5158187
- 1990-ford-f-350-xl-esi6167265
- 1991-ford-f-250-custom-esi5747421
- 1991-ford-f-250-xlt-lariat-esi5421436
- 1991-ford-f-350-custom-esi3145796
- 1991-ford-f-350-xl-esi5283246
- 1991-ford-f-350-xlt-lariat-esi7326894
- 1992-ford-f-250-custom-esi9171795
- 1992-ford-f-250-xl-esi4360360
- 1992-ford-f-350-custom-esi5023500
- 1992-ford-f-350-xl-esi7624294
- 1993-ford-f-250-xl-esi7752528
- 1993-ford-f-350-xl-esi6543130
- 1993-ford-f-350-xlt-esi4092520
- 1994-ford-f-250-xl-esi8600078
- 1994-ford-f-250-xlt-esi7639457
- 1994-ford-f-350-xl-esi8987582
- 1994-ford-f-350-xlt-esi7502036
- Bucket:Ford
- Engine Components>Valve Seals
- EPA:N/A
- LTL:N
- MPN:506-1
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y
