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COMP Cams Umbrella Seals Guide Size: Stock

COMP Cams 502-12

249-502-12

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COMP Cams Umbrella Seals Guide Size: Stock $8.99
Umbrella Seals
  • Guide Size: Stock
  • Valve Size: 11/32''
  • 12/pkg

  • COMP Cams 502-12 Details

    Umbrella Seals

    Specifications:

    Diameter (in.)
    0.34375
    Machine Work Required
    No
    Quantity
    Sold as a set of 12
    Valve Stem Diameter (in.)
    0.344
    Valve Stem Seal Material
    Rubber
    Valve Stem Seal Type
    Umbrella
    Manufacturer's Part Number:
    502-12

    Comp Cams offers a complete line of valve stem seals, from the stock GM O-ring to the positive stop PTFE seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. O-ring seals use the standard retainer and oil splash shield. Umbrella seals are normally used when a larger-than-stock diameter spring is used; in the case of a double spring, positive stop PTFE seals are used. There is also a smaller diameter Viton seal available for triple spring applications. O-rings and umbrella seals require no machining, but PTFE seals require the heads to be disassembled so the top guides can be machined with a special .530" diameter cutter. Whenever you're planning an overhaul or cam change, don't forget the valve seals!

    Features:
  • Excellent Sealing Properties
  • O-Ring & Umbrella Seals Require No Machining

  • Does COMP Cams 502-12 fit your vehicle?

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    Aspiration

    1972 FORD E-300 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CLUB WAGON
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1978 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984 BUICK CENTURY

    • Fitment_Note: 50-State Legal
    • Liter: 3.0
    • SubModel: OLYMPIA LIMITED
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1965-1974 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1986 BUICK SOMERSET

    • Fitment_Note: 50-State Legal
    • Liter: 3.0
    • SubModel: T-TYPE
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1975-1981 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1994-1995 CHEVROLET K2500 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1972-1974 FORD E-200 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1982 FORD E-350 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977-1983 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    2003 CHEVROLET SILVERADO 1500

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1995-1996 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1993-1994 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1992-2003 CHEVROLET S10 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1970-1973 FORD RANCHERO

    • Liter: 4.1
    • SubModel: 500
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1977 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984 FORD E-350 ECONOLINE

    • EngineType: ALL
    • SubModel: XLT

    1975-1977 BUICK CENTURY

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1975-1977 FORD MAVERICK

    • Liter: 4.1
    • SubModel: GRABBER
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1996-1997 CHEVROLET EXPRESS 1500

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1982 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLS
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1976 OLDSMOBILE STARFIRE

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: SX
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1995 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: EDDIE BAUER
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    2003 CHEVROLET S10 BLAZER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ZR2

    1977 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1985 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT LARIAT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975 OLDSMOBILE STARFIRE

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1977 OLDSMOBILE DELTA 88

    • CC: 3800
    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: ROYALE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1985 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT LARIAT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984-1985 FORD E-350 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977-1982 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1976-1977 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1981 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977 PONTIAC VENTURA

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: SJ
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1992-1995 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1982 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1985-1989 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1985 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1981 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1983 FORD E-100 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977 OLDSMOBILE CUTLASS

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: COLONNADE S
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1992-1998 CHEVROLET K1500 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: CHEYENNE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1975-1982 FORD E-150 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1981 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1972-1974 FORD GRAN TORINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU HD
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1978 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: NORTHLAND
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    2002-2003 CHEVROLET SILVERADO 1500

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1999-2003 CHEVROLET EXPRESS 2500

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: LS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1991-1992 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1992-1993 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM HD
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977-1978 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: NORTHLAND
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1977 PONTIAC LEMANS

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1992-1995 CHEVROLET G30 VAN

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: HI-CUBE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT HD
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1999-2003 CHEVROLET S10 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: XTREME
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1975-1981 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1978 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1980-1981 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1992 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT NITE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1992-1998 CHEVROLET K1500 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1984-1985 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1978 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: NORTHLAND
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1996-2001 OLDSMOBILE BRAVADA

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1985-1989 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: EDDIE BAUER
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1986 BUICK LESABRE

    • Fitment_Note: 50-State Legal
    • Liter: 3.0
    • SubModel: LIMITED
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1984 BUICK CENTURY

    • Fitment_Note: 50-State Legal
    • Liter: 3.0
    • SubModel: ESTATE
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1999-2002 CHEVROLET SILVERADO 1500

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1976 BUICK SKYLARK

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: S
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1993-1996 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1986 BUICK LESABRE

    • Fitment_Note: 50-State Legal
    • Liter: 3.0
    • SubModel: CUSTOM
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    2000-2001 CHEVROLET S10 BLAZER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: TRAILBLAZER

    1977 PONTIAC VENTURA

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1975-1978 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: NORTHLAND
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1976 OLDSMOBILE STARFIRE

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1986-1996 FORD E-150 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1974 FORD E-200 ECONOLINE

    • EngineType: ALL
    • SubModel: CLUB PASSENGER WAGON

    1984-1985 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1983-1984 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1973 FORD GRAN TORINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BROUGHAM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1977 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1990 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1965-1974 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1987-1995 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    2002-2003 CHEVROLET S10 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: ZR5
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1970 MERCURY MONTEGO

    • CC: 4098
    • Liter: 4.1
    • SubModel: VILLAGER
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975-1982 FORD E-100 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1986-1994 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1986-1991 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984-1989 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1992-1998 CHEVROLET C1500 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1975-1982 FORD E-100 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1969-1974 MERCURY MONTEGO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1988-1996 FORD E-150 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1994-2003 CHEVROLET S10 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 4.3
    • SubModel: LS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1978 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1987 FORD BRONCO

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1977 BUICK CENTURY

    • Fitment_Note: 50-State Legal
    • Liter: 3.8
    • SubModel: CUSTOM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1978-1981 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER LARIAT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations