Pioneer Cables 749114 Automatic Transmission Valve Body Cover Gasket

Brand Pioneer Cables 749114
Fits Chevrolet, GMC, Buick, Oldsmobile, Pontiac, and Cadillac · 218 vehicles

Exact fit replacement. No-compromise valve body cover gasket for straightforward service.

Automatic transmission gasket for sealing the valve body cover.

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Automatic Transmission Valve Body Cover Gasket

Pioneer Cables 749114 is an automatic transmission valve body cover gasket for lower cover applications. It is an exact-fit replacement part from Pioneer Transmission Components, built for direct service on a wide range of classic GM cars and trucks.

  • Lower automatic transmission valve body cover gasket
  • Exact-fit replacement from Pioneer Cables
  • Compatible with select THM250C/M31, THM350, and THM350C applications where noted
  • Fits many Chevrolet, GMC, Buick, Oldsmobile, Pontiac, and Cadillac models
  • Part number 749114 for catalog and service lookup

Vehicle Fitment

  • Fits 1986 Chevrolet C10, lower.
  • Fits 1980-1984 Chevrolet C10, lower.
  • Fits 1986 Chevrolet C20, lower; only fits THM250C/M31, THM350.
  • Fits 1986 Chevrolet C20 Suburban, lower.
  • Fits 1980-1984 Chevrolet C20 Suburban, lower.
  • Fits 1986 Chevrolet C30, lower.
  • Fits 1980-1981 Chevrolet C30, lower.
  • Fits 1986 Chevrolet G10, lower.
  • Fits 1984 Chevrolet G10, lower.
  • Fits 1980-1982 Chevrolet G10, lower.
  • Fits 1986 Chevrolet G20, lower.
  • Fits 1984 Chevrolet G20, lower.
  • Fits 1980-1982 Chevrolet G20, lower.
  • Fits 1986 Chevrolet K10, lower.
  • Fits 1980-1983 Chevrolet K10, lower.
  • Fits 1986 Chevrolet K20 Suburban, lower.
  • Fits 1980-1981 Chevrolet K20 Suburban, lower.
  • Fits 1986 Chevrolet K5 Blazer, lower.
  • Fits 1980-1982 Chevrolet K5 Blazer, lower.
  • Fits 1986 GMC C1500, lower.
  • Fits 1980-1984 GMC C1500, lower.
  • Fits 1986 GMC C2500, lower.
  • Fits 1980-1984 GMC C2500, lower.
  • Fits 1986 GMC C2500 Suburban, lower.
  • Fits 1980-1984 GMC C2500 Suburban, lower.
  • Fits 1986 GMC C3500, lower.
  • Fits 1980-1981 GMC C3500, lower.
  • Fits 1986 GMC G1500, lower.
  • Fits 1980-1984 GMC G1500, lower.
  • Fits 1986 GMC G2500, lower.
  • Fits 1984 GMC G2500, lower.
  • Fits 1980-1982 GMC G2500, lower.
  • Fits 1985-1986 GMC G3500, lower.
  • Fits 1980-1981 GMC G3500, lower.
  • Fits 1986 GMC Jimmy, lower.
  • Fits 1980-1982 GMC Jimmy, lower.
  • Fits 1986 GMC K1500, lower.
  • Fits 1980-1982 GMC K1500, lower.
  • Fits 1980-1985 Buick LeSabre, lower.
  • Fits 1980-1985 Buick Regal, lower.
  • Fits 1985 Oldsmobile Cutlass Salon, lower.
  • Fits 1980 Oldsmobile Cutlass Salon, lower.
  • Fits 1980-1984 Chevrolet C10 Suburban, lower.
  • Fits 1980-1984 Chevrolet C20, lower.
  • Fits 1983-1984 Chevrolet Caprice, lower.
  • Fits 1980 Chevrolet Caprice, lower.
  • Fits 1980-1984 Chevrolet El Camino, lower.
  • Fits 1984 Chevrolet G30, lower.
  • Fits 1980-1982 Chevrolet G30, lower.
  • Fits 1980-1984 Chevrolet Impala, lower.
  • Fits 1981-1984 Chevrolet Monte Carlo, lower; only fits THM350.
  • Fits 1980-1984 GMC C1500 Suburban, lower.
  • Fits 1984 Oldsmobile Cutlass Ciera, lower; only fits THM250C/M31, THM350, THM350C.
  • Fits 1982-1984 Oldsmobile Cutlass Supreme, lower.
  • Fits 1980-1984 Oldsmobile Delta 88, lower.
  • Fits 1980-1984 Pontiac Bonneville, lower.
  • Fits 1980-1984 Pontiac Grand Prix, lower.
  • Fits 1983-1984 Pontiac Parisienne, lower.
  • Fits 1982-1983 Chevrolet Malibu, lower.
  • Fits 1980 Chevrolet Malibu, lower.
  • Fits 1980-1983 Oldsmobile 98, lower.
  • Fits 1980-1983 Oldsmobile Custom Cruiser, lower.
  • Fits 1981-1983 Oldsmobile Cutlass Cruiser, lower.
  • Fits 1982 Cadillac DeVille, lower.
  • Fits 1980 Cadillac DeVille, lower.
  • Fits 1982 Cadillac Fleetwood, lower.
  • Fits 1980 Cadillac Fleetwood, lower.
  • Fits 1981-1982 Chevrolet Caprice, lower; only fits THM350.
  • Fits 1980-1982 Chevrolet K10 Suburban, lower.
  • Fits 1980-1982 GMC K1500 Suburban, lower.
  • Fits 1982 Pontiac Parisienne, lower; only fits THM250C/M31, THM350, THM350C.
  • Fits 1980-1981 Buick Century, lower.
  • Fits 1981 Chevrolet Bel Air, lower; only fits THM250C/M31, THM350, THM350C.
  • Fits 1980-1981 Chevrolet Camaro, lower.
  • Fits 1980-1981 Chevrolet Corvette, lower.
  • Fits 1980-1981 Chevrolet K20, lower.
  • Fits 1980-1981 Chevrolet K30, lower.
  • Fits 1981 Chevrolet Malibu, lower; only fits THM350.
  • Fits 1980-1981 GMC K2500, lower.
  • Fits 1980-1981 GMC K2500 Suburban, lower.
  • Fits 1980-1981 GMC K3500, lower.
  • Fits 1980-1981 Oldsmobile Cutlass, lower.
  • Fits 1980-1981 Pontiac Catalina, lower.
  • Fits 1980-1981 Pontiac Firebird, lower.
  • Fits 1980-1981 Pontiac LeMans, lower.
  • Fits 1980 Buick Skyhawk, lower.
  • Fits 1980 Chevrolet Monte Carlo, lower.
  • Fits 1980 Chevrolet Monza, lower.
  • Fits 1980 Chevrolet P10, lower.
  • Fits 1980 Chevrolet P20, lower.
  • Fits 1980 Chevrolet P30, lower.
  • Fits 1980 GMC P1500, lower.
  • Fits 1980 GMC P2500, lower.
  • Fits 1980 GMC P3500, lower.
  • Fits 1980 Oldsmobile Starfire, lower.
  • Fits 1980 Pontiac Grand Am, lower.
  • Fits 1980 Pontiac Sunbird, lower.

Common Repair Uses

  • Sealing a leaking lower valve body cover on a GM automatic transmission
  • Restoring proper transmission fluid containment during service
  • Replacing a damaged or flattened gasket during transmission maintenance
  • Addressing seepage around the lower transmission valve body cover
  • Supporting service work on THM250C/M31, THM350, and THM350C-equipped vehicles where listed

Installation Notes

Confirm the transmission family and the lower-cover application before installation. Clean the mating surfaces thoroughly, inspect the cover for warpage, and verify the gasket seats evenly before reassembly. Use the fitment notes to match THM250C/M31, THM350, or THM350C requirements where specified.

Quality Assurance

Pioneer Transmission Components markets this gasket as an exact-fit replacement part, built for direct service without compromise. Part number 749114 helps confirm the correct lower valve body cover gasket for the listed Chevrolet, GMC, Buick, Oldsmobile, Pontiac, and Cadillac applications.

This part fits 218 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1986ChevroletC10N/APosition: Lower
1986ChevroletC20N/APosition: Lower; Only Fits THM250C/M31, THM350
1986ChevroletC20 SuburbanN/APosition: Lower
1986ChevroletC30N/APosition: Lower
1986ChevroletG10N/APosition: Lower
1986ChevroletG20N/APosition: Lower
1986ChevroletK10N/APosition: Lower
1986ChevroletK20 SuburbanN/APosition: Lower
1986ChevroletK5 BlazerN/APosition: Lower
1986GMCC1500N/APosition: Lower
1986GMCC2500N/APosition: Lower
1986GMCC2500 SuburbanN/APosition: Lower
1986GMCC3500N/APosition: Lower
1986GMCG1500N/APosition: Lower
1986GMCG2500N/APosition: Lower
1986GMCG3500N/APosition: Lower
1986GMCJimmyN/APosition: Lower
1986GMCK1500N/APosition: Lower
1985BuickLeSabreN/APosition: Lower
1985BuickRegalN/APosition: Lower
1985GMCG3500N/APosition: Lower
1985OldsmobileCutlass SalonN/APosition: Lower
1984BuickLeSabreN/APosition: Lower
1984BuickRegalN/APosition: Lower
1984ChevroletC10N/APosition: Lower
1984ChevroletC10 SuburbanN/APosition: Lower
1984ChevroletC20N/APosition: Lower
1984ChevroletC20 SuburbanN/APosition: Lower
1984ChevroletCapriceN/APosition: Lower
1984ChevroletEl CaminoN/APosition: Lower
1984ChevroletG10N/APosition: Lower
1984ChevroletG20N/APosition: Lower
1984ChevroletG30N/APosition: Lower
1984ChevroletImpalaN/APosition: Lower
1984ChevroletMonte CarloN/APosition: Lower; Only Fits THM350
1984GMCC1500N/APosition: Lower
1984GMCC1500 SuburbanN/APosition: Lower
1984GMCC2500N/APosition: Lower
1984GMCC2500 SuburbanN/APosition: Lower
1984GMCG1500N/APosition: Lower
1984GMCG2500N/APosition: Lower
1984OldsmobileCutlass CieraN/APosition: Lower; Only Fits THM250C/M31, THM350, THM350C
1984OldsmobileCutlass SupremeN/APosition: Lower
1984OldsmobileDelta 88N/APosition: Lower
1984PontiacBonnevilleN/APosition: Lower
1984PontiacGrand PrixN/APosition: Lower
1984PontiacParisienneN/APosition: Lower
1983BuickLeSabreN/APosition: Lower
1983BuickRegalN/APosition: Lower
1983ChevroletC10N/APosition: Lower
1983ChevroletC10 SuburbanN/APosition: Lower
1983ChevroletC20N/APosition: Lower
1983ChevroletC20 SuburbanN/APosition: Lower
1983ChevroletCapriceN/APosition: Lower
1983ChevroletEl CaminoN/APosition: Lower
1983ChevroletImpalaN/APosition: Lower
1983ChevroletK10N/APosition: Lower
1983ChevroletMalibuN/APosition: Lower
1983ChevroletMonte CarloN/APosition: Lower; Only Fits THM350
1983GMCC1500N/APosition: Lower
1983GMCC1500 SuburbanN/APosition: Lower
1983GMCC2500N/APosition: Lower
1983GMCC2500 SuburbanN/APosition: Lower
1983GMCG1500N/APosition: Lower
1983Oldsmobile98N/APosition: Lower
1983OldsmobileCustom CruiserN/APosition: Lower
1983OldsmobileCutlass CruiserN/APosition: Lower
1983OldsmobileCutlass SupremeN/APosition: Lower
1983OldsmobileDelta 88N/APosition: Lower
1983PontiacBonnevilleN/APosition: Lower
1983PontiacGrand PrixN/APosition: Lower
1983PontiacParisienneN/APosition: Lower
1982BuickLeSabreN/APosition: Lower
1982BuickRegalN/APosition: Lower
1982CadillacDeVilleN/APosition: Lower
1982CadillacFleetwoodN/APosition: Lower
1982ChevroletC10N/APosition: Lower
1982ChevroletC10 SuburbanN/APosition: Lower
1982ChevroletC20N/APosition: Lower
1982ChevroletC20 SuburbanN/APosition: Lower
1982ChevroletCapriceN/APosition: Lower; Only Fits THM350
1982ChevroletEl CaminoN/APosition: Lower
1982ChevroletG10N/APosition: Lower
1982ChevroletG20N/APosition: Lower
1982ChevroletG30N/APosition: Lower
1982ChevroletImpalaN/APosition: Lower
1982ChevroletK10N/APosition: Lower
1982ChevroletK10 SuburbanN/APosition: Lower
1982ChevroletK5 BlazerN/APosition: Lower
1982ChevroletMalibuN/APosition: Lower
1982ChevroletMonte CarloN/APosition: Lower; Only Fits THM350
1982GMCC1500N/APosition: Lower
1982GMCC1500 SuburbanN/APosition: Lower
1982GMCC2500N/APosition: Lower
1982GMCC2500 SuburbanN/APosition: Lower
1982GMCG1500N/APosition: Lower
1982GMCG2500N/APosition: Lower
1982GMCJimmyN/APosition: Lower
1982GMCK1500N/APosition: Lower
1982GMCK1500 SuburbanN/APosition: Lower
1982Oldsmobile98N/APosition: Lower
1982OldsmobileCustom CruiserN/APosition: Lower
1982OldsmobileCutlass CruiserN/APosition: Lower
1982OldsmobileCutlass SupremeN/APosition: Lower
1982OldsmobileDelta 88N/APosition: Lower
1982PontiacBonnevilleN/APosition: Lower
1982PontiacGrand PrixN/APosition: Lower
1982PontiacParisienneN/APosition: Lower; Only Fits THM250C/M31, THM350, THM350C
1981BuickCenturyN/APosition: Lower
1981BuickLeSabreN/APosition: Lower
1981BuickRegalN/APosition: Lower
1981ChevroletBel AirN/APosition: Lower; Only Fits THM250C/M31, THM350, THM350C
1981ChevroletC10N/APosition: Lower
1981ChevroletC10 SuburbanN/APosition: Lower
1981ChevroletC20N/APosition: Lower
1981ChevroletC20 SuburbanN/APosition: Lower
1981ChevroletC30N/APosition: Lower
1981ChevroletCamaroN/APosition: Lower
1981ChevroletCapriceN/APosition: Lower; Only Fits THM350
1981ChevroletCorvetteN/APosition: Lower
1981ChevroletEl CaminoN/APosition: Lower
1981ChevroletG10N/APosition: Lower
1981ChevroletG20N/APosition: Lower
1981ChevroletG30N/APosition: Lower
1981ChevroletImpalaN/APosition: Lower
1981ChevroletK10N/APosition: Lower
1981ChevroletK10 SuburbanN/APosition: Lower
1981ChevroletK20N/APosition: Lower
1981ChevroletK20 SuburbanN/APosition: Lower
1981ChevroletK30N/APosition: Lower
1981ChevroletK5 BlazerN/APosition: Lower
1981ChevroletMalibuN/APosition: Lower; Only Fits THM350
1981ChevroletMonte CarloN/APosition: Lower; Only Fits THM350
1981GMCC1500N/APosition: Lower
1981GMCC1500 SuburbanN/APosition: Lower
1981GMCC2500N/APosition: Lower
1981GMCC2500 SuburbanN/APosition: Lower
1981GMCC3500N/APosition: Lower
1981GMCG1500N/APosition: Lower
1981GMCG2500N/APosition: Lower
1981GMCG3500N/APosition: Lower
1981GMCJimmyN/APosition: Lower
1981GMCK1500N/APosition: Lower
1981GMCK1500 SuburbanN/APosition: Lower
1981GMCK2500N/APosition: Lower
1981GMCK2500 SuburbanN/APosition: Lower
1981GMCK3500N/APosition: Lower
1981Oldsmobile98N/APosition: Lower
1981OldsmobileCustom CruiserN/APosition: Lower
1981OldsmobileCutlassN/APosition: Lower
1981OldsmobileCutlass CruiserN/APosition: Lower
1981OldsmobileDelta 88N/APosition: Lower
1981PontiacBonnevilleN/APosition: Lower
1981PontiacCatalinaN/APosition: Lower
1981PontiacFirebirdN/APosition: Lower
1981PontiacGrand PrixN/APosition: Lower
1981PontiacLeMansN/APosition: Lower
1980BuickCenturyN/APosition: Lower
1980BuickLeSabreN/APosition: Lower
1980BuickRegalN/APosition: Lower
1980BuickSkyhawkN/APosition: Lower
1980CadillacDeVilleN/APosition: Lower
1980CadillacFleetwoodN/APosition: Lower
1980ChevroletC10N/APosition: Lower
1980ChevroletC10 SuburbanN/APosition: Lower
1980ChevroletC20N/APosition: Lower
1980ChevroletC20 SuburbanN/APosition: Lower
1980ChevroletC30N/APosition: Lower
1980ChevroletCamaroN/APosition: Lower
1980ChevroletCapriceN/APosition: Lower
1980ChevroletCorvetteN/APosition: Lower
1980ChevroletEl CaminoN/APosition: Lower
1980ChevroletG10N/APosition: Lower
1980ChevroletG20N/APosition: Lower
1980ChevroletG30N/APosition: Lower
1980ChevroletImpalaN/APosition: Lower
1980ChevroletK10N/APosition: Lower
1980ChevroletK10 SuburbanN/APosition: Lower
1980ChevroletK20N/APosition: Lower
1980ChevroletK20 SuburbanN/APosition: Lower
1980ChevroletK30N/APosition: Lower
1980ChevroletK5 BlazerN/APosition: Lower
1980ChevroletMalibuN/APosition: Lower
1980ChevroletMonte CarloN/APosition: Lower
1980ChevroletMonzaN/APosition: Lower
1980ChevroletP10N/APosition: Lower
1980ChevroletP20N/APosition: Lower
1980ChevroletP30N/APosition: Lower
1980GMCC1500N/APosition: Lower
1980GMCC1500 SuburbanN/APosition: Lower
1980GMCC2500N/APosition: Lower
1980GMCC2500 SuburbanN/APosition: Lower
1980GMCC3500N/APosition: Lower
1980GMCG1500N/APosition: Lower
1980GMCG2500N/APosition: Lower
1980GMCG3500N/APosition: Lower
1980GMCJimmyN/APosition: Lower
1980GMCK1500N/APosition: Lower
1980GMCK1500 SuburbanN/APosition: Lower
1980GMCK2500N/APosition: Lower
1980GMCK2500 SuburbanN/APosition: Lower
1980GMCK3500N/APosition: Lower
1980GMCP1500N/APosition: Lower
1980GMCP2500N/APosition: Lower
1980GMCP3500N/APosition: Lower
1980Oldsmobile98N/APosition: Lower
1980OldsmobileCustom CruiserN/APosition: Lower
1980OldsmobileCutlassN/APosition: Lower
1980OldsmobileCutlass SalonN/APosition: Lower
1980OldsmobileDelta 88N/APosition: Lower
1980OldsmobileStarfireN/APosition: Lower
1980PontiacBonnevilleN/APosition: Lower
1980PontiacCatalinaN/APosition: Lower
1980PontiacFirebirdN/APosition: Lower
1980PontiacGrand AmN/APosition: Lower
1980PontiacGrand PrixN/APosition: Lower
1980PontiacLeMansN/APosition: Lower
1980PontiacSunbirdN/APosition: Lower