Dorman Steel Cup Expansion Plug 9/16 In., Height 0.250

SKU: 1MJ0E | MPN:  555-008
Only 5 units left
Sale price$23.36 USD

Steel Cup Expansion Plug 9/16 In., Height 0.250

Application Summary: Chevrolet 1977-71, GMC 1959-55, Oldsmobile 1977-76, Pontiac 1977-75, Pontiac 1957-55

Dorman's Engine Expansion Plugs are available in multiple styles, including Cup Type, Pilot Seal, Reverse Taper, Concave, Quick-Seal Rubber and Quick-Seal Copper. Our uniquely designed Pilot Seal Expansion Plug ensures a leak-proof fit. We also offer Engine Expansion Plug Kits.

  • Many sizes available
  • Conveniently available in packs of different quantities
  • Constructed from high quality steel, copper, brass, or rubber
  • Dorman's Engine Expansion Plugs are constructed to strict engineering quality standards


Product Specifications

Closed End Diameter: 0.558 In.

Describe Type: Cup Type

Material: Steel

Open End Diameter (in): 0.574 In.

Package Contents: Expansion Plug

Packaging Type: Box

Package Quantity: 10

Brand: Dorman - AutoGrade - Boxed



Vehicle Fitments:

Year Make Model Submodel
1962 - 1963 Buick Special Base, Deluxe
1954 Chevrolet 1500 Base
1959 Chevrolet 3B 3200
1959 Chevrolet 3C 3400
1959 Chevrolet 3D 3500
1959 Chevrolet 3E 3600
1959 Chevrolet 3F 3700
1959 Chevrolet 3G 3800
1950 - 1963 Chevrolet Bel Air Base
1955 - 1956 Chevrolet Bel Air Beauville
1955 - 1957 Chevrolet Bel Air Nomad
1958 - 1963 Chevrolet Biscayne Base
1960 Chevrolet Biscayne Fleetmaster
1946 Chevrolet BK Base
1959 - 1961 Chevrolet Brookwood Base
1960 - 1963 Chevrolet C10 Panel Base
1960 - 1963 Chevrolet C10 Pickup Base
1960 - 1963 Chevrolet C20 Pickup Base
1960 - 1963 Chevrolet C30 Panel Base
1960 - 1963 Chevrolet C30 Pickup Base
1960 - 1962 Chevrolet C40 Base
1960 - 1963 Chevrolet C50 Base
1960 - 1963 Chevrolet C60 Base
1962 - 1963 Chevrolet C80 Base
1962 - 1963 Chevrolet Chevy II Nova, Base
1946 Chevrolet CK Base
1961 - 1963 Chevrolet Corvair 95
1960 - 1961 Chevrolet Corvair Deluxe
1961 Chevrolet Corvair Lakewood
1962 - 1963 Chevrolet Corvair Monza Spyder
1960 - 1963 Chevrolet Corvair Monza, Base
1961 - 1963 Chevrolet Corvair Truck 95
1953 - 1955 Chevrolet Corvette Base
1957 - 1958 Chevrolet Del Ray Base
1946 Chevrolet DJ Base
1946 Chevrolet DP Base
1946 Chevrolet DR Base
1946 Chevrolet DS Base
1959 - 1960 Chevrolet El Camino Base
1946 - 1948 Chevrolet Fleetline Base
1949 - 1952 Chevrolet Fleetline Deluxe, Special
1946 - 1948 Chevrolet Fleetmaster Base
1958 - 1963 Chevrolet Impala Base
1960 - 1963 Chevrolet K10 Pickup Base
1960 - 1963 Chevrolet K20 Pickup Base
1959 - 1961 Chevrolet Kingswood Base
1975 Chevrolet Monza S, 2+2
1955 - 1961 Chevrolet Nomad Base
1953 - 1957 Chevrolet One-Fifty Series Base
1960 - 1963 Chevrolet P10 Series Base
1960 - 1963 Chevrolet P20 Series Base
1960 - 1963 Chevrolet P30 Series Base
1959 - 1961 Chevrolet Parkwood Base
1947 - 1958 Chevrolet Sedan Delivery Base
1949 - 1952 Chevrolet Styleline Deluxe Base
1949 - 1952 Chevrolet Styleline Special Base
1946 - 1948 Chevrolet Stylemaster Series Base
1960 - 1963 Chevrolet Suburban Base
1947 - 1959 Chevrolet Truck 3100
1955 - 1958 Chevrolet Truck 3500, 3200, 3400
1948 - 1958 Chevrolet Truck 3700
1947 - 1958 Chevrolet Truck 3800, 3600
1948 - 1954 Chevrolet Truck 3900
1946 - 1960 Chevrolet Truck Base
1953 - 1957 Chevrolet Two-Ten Series Base
1954 - 1957 Chevrolet Two-Ten Series Del Ray
1971 - 1977 Chevrolet Vega Base
1975 - 1976 Chevrolet Vega Cosworth
1976 - 1977 Chevrolet Vega GT, Estate, Sport
1971 - 1974 Chevrolet Vega Panel
1975 Chevrolet Vega Panel Express, LX, Estate Wagon
1958 Chevrolet Yeoman Base
1951 - 1959 GMC 100 Base
1947 - 1955 GMC 100-22 Base
1953 - 1954 GMC 100-24 Base
1960 - 1963 GMC 1000 Series Base
1952 - 1953 GMC 102-22 Base
1951 - 1959 GMC 150 Base
1947 - 1955 GMC 150-22 Base
1953 - 1954 GMC 150-24 Base
1960 - 1963 GMC 1500 Series Base
1951 - 1959 GMC 250 Base
1951 - 1955 GMC 250-22 Base
1953 - 1954 GMC 250-24 Base
1960 - 1963 GMC 2500 Series Base
1952 - 1953 GMC 253-22 Base
1951 - 1955 GMC 280-22 Base
1951 - 1959 GMC 300 Base
1953 - 1954 GMC 300-24 Base
1960 - 1963 GMC 3000 Base
1951 - 1954 GMC 350-24 Base
1951 - 1954 GMC 350-27 Base
1960 - 1963 GMC 3500 Base
1951 - 1959 GMC 370 Base
1946 - 1947 GMC CC100 Base
1946 - 1947 GMC CC101 Base
1946 - 1947 GMC CC102 Base
1946 - 1947 GMC CC150 Base
1946 - 1947 GMC CC250 Base
1946 - 1947 GMC CC260 Base
1946 - 1947 GMC CCV100 Base
1946 - 1947 GMC CCX250 Base
1946 - 1947 GMC EC100 Base
1946 - 1947 GMC EC101 Base
1946 - 1947 GMC EC102 Base
1946 - 1947 GMC EC150 Base
1946 - 1947 GMC EC152 Base
1947 GMC EC250 Base
1947 GMC EC251 Base
1947 GMC EC252 Base
1947 GMC EC280 Base
1947 GMC EC282 Base
1947 GMC EC283 Base
1946 GMC EC350 Base
1947 GMC EF240 Base
1947 - 1949 GMC EF241 Base
1948 - 1949 GMC EF242 Base
1946 GMC EF350 Base
1947 GMC EFP240 Base
1953 - 1959 GMC F350 Base
1951 - 1954 GMC F350-24 Base
1951 - 1954 GMC F350-27 Base
1951 - 1959 GMC F370 Base
1947 - 1952 GMC FC100 Base
1952 GMC FC100-22 Base
1947 - 1950 GMC FC101 Base
1947 - 1950 GMC FC102 Base
1947 - 1952 GMC FC150 Base
1947 - 1950 GMC FC152 Base
1947 - 1950 GMC FC250 Base
1947 - 1950 GMC FC251 Base
1947 - 1950 GMC FC252 Base
1947 - 1950 GMC FC253 Base
1947 - 1950 GMC FC280 Base
1947 - 1950 GMC FC281 Base
1947 GMC FC283 Base
1947 - 1950 GMC FC300 Base
1947 - 1950 GMC FC350 Base
1947 - 1950 GMC FCS300 Base
1947 - 1950 GMC FCS350 Base
1947 - 1950 GMC FF350 Base
1949 - 1950 GMC FP152 Base
1963 GMC G1000 Series Base
1954 - 1959 GMC M300 Base
1951 - 1954 GMC M350-24 Base
1951 - 1954 GMC M350-27 Base
1951 - 1954 GMC P150-22 Base
1950 - 1951 GMC P152 Base
1951 GMC P252 Base
1951 GMC P253 Base
1961 - 1963 GMC PB1000 Series Base
1963 GMC PB1500 Series Base
1963 GMC PB2500 Series Base
1953 - 1959 GMC PM150 Base
1952 - 1954 GMC PM150-22 Base
1952 - 1954 GMC PM150-24 Base
1955 - 1959 GMC PM151 Base
1952 - 1959 GMC PM152 Base
1952 - 1954 GMC PM152-22 Base
1955 - 1959 GMC PM153 Base
1955 - 1959 GMC PM250 Base
1954 GMC PM250-24 Base
1956 - 1959 GMC PM251 Base
1952 - 1958 GMC PM252 Base
1952 - 1958 GMC PM253 Base
1960 GMC PV1000 Base
1955 - 1959 GMC S300 Base
1951 - 1954 GMC S300-24 Base
1951 - 1959 GMC S370 Base
1960 - 1963 GMC Suburban Base
1950 - 1960 GMC Truck Base
1960 - 1962 GMC V3000 Forward Control Base
1947 Oldsmobile F-47 Base
1947 Oldsmobile G-47 Base
1946 Oldsmobile Series 60 Base
1946 - 1948 Oldsmobile Series 66 Base
1946 - 1950 Oldsmobile Series 76 Base
1977 Oldsmobile Starfire Firenza
1976 - 1977 Oldsmobile Starfire GT, Base, SX
1962 - 1963 Pontiac Acadian Base
1975 - 1976 Pontiac Astre Custom
1975 Pontiac Astre GT, GT Safari, S Safari, SJ, SJ Safari, S
1975 - 1977 Pontiac Astre Safari, Base
1957 Pontiac Bonneville Base
1950 - 1957 Pontiac Catalina Base
1949 - 1957 Pontiac Chieftain Base
1957 Pontiac Chieftain Custom Safari Transcontinental, Custom Safari
1951 - 1954 Pontiac Chieftain Deluxe
1955 Pontiac Chieftain Safari
1953 - 1954 Pontiac Chieftain Special, Custom
1951 - 1952 Pontiac Chieftain Super Deluxe
1955 - 1962 Pontiac Laurentian Base
1959 - 1962 Pontiac Parisienne Base
1955 - 1958 Pontiac Pathfinder Base
1948 - 1952 Pontiac Silver Streak Base
1955 - 1961 Pontiac Star Chief Base
1955 - 1957 Pontiac Star Chief Custom
1958 Pontiac Star Chief Custom Safari, Super Deluxe
1958 - 1962 Pontiac Strato-Chief Base
1946 - 1952 Pontiac Streamliner Base
1949 Pontiac Streamliner Deluxe
1976 - 1977 Pontiac Sunbird Base
1976 Pontiac Sunbird SJ
1957 Pontiac Super Chief Base
1946 - 1948 Pontiac Torpedo Base