HomeAir and Fuel Delivery > Electrical ConnectorsStandard Ignition S-668 Fuel Level Sensor Connector
Part #: S-668

Standard Ignition S-668 Fuel Level Sensor Connector

⚙️ 158 vehicles fit this part
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🚗Fitment: Chevrolet, GMC, Cadillac, Oldsmobile, Buick, and Pontiac, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Jimmy, Yukon, Allante, Commercial Chassis, Eldorado, Seville, Beretta, Camaro, Caprice, Cavalier, Corsica, Corvette, Monte Carlo, Nova, Spectrum, Sprint, 98, Custom Cruiser, Cutlass Calais, Cutlass Ciera, Cutlass Cruiser, Cutlass Supreme, Delta 88, Toronado, Regal, Riviera, Skylark, Somerset, Chevette, El Camino, Calais, Cutlass, Grand Prix, Century, Electra, DeVille, Cutlass Salon, Somerset Regal, Citation II, Impala, 6000, Bonneville, Grand Am, Fleetwood, and Omega
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Reliable Fuel Level Sensor Connector for GM Vehicles

The Standard Ignition S-668 fuel level sensor connector is designed to provide a secure and efficient electrical connection for fuel level sensors in various General Motors vehicles. Engineered with a male connector and female terminals, this pigtail assembly ensures accurate fuel level readings and reliable performance.

  • Connector Gender: Male
  • Terminal Gender: Female
  • Terminal Type: 4 blade terminals
  • Terminal Quantity: 4
  • Wire Quantity: 4
  • Includes one pigtail assembly

Durable Design and Precise Fitment

This fuel level sensor connector (part number S-668) is compatible with a wide range of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models, including popular vehicles such as the Chevrolet Blazer, Cadillac DeVille, Buick Century, and GMC Yukon. The connector features four blade terminals and four wires, providing a stable and secure connection to the fuel level sensor. Its male connector design mates with female terminals to ensure proper electrical contact and signal transmission.

Compatible GM Models and Applications

The Standard Ignition S-668 is suitable for use in multiple GM vehicles, including but not limited to:

  • Buick Century, Skylark, and Regal
  • Cadillac Allante, DeVille, Eldorado, and Seville
  • Chevrolet Camaro, Caprice, Impala, and C1500 series trucks
  • GMC Sierra K1500, K2500, and Yukon
  • Oldsmobile Cutlass, Delta 88, and Omega
  • Pontiac Grand Am, Grand Prix, and Bonneville

Common Issues Addressed by This Connector

  • Intermittent or inaccurate fuel gauge readings
  • Corroded or damaged fuel level sensor wiring
  • Loose or faulty electrical connections in the fuel tank
  • Replacement of worn or broken fuel sensor pigtail assemblies
  • Electrical faults causing fuel gauge malfunctions

Installation Notes and Tips

When installing the Standard Ignition S-668 fuel level sensor connector, ensure the vehicle’s battery is disconnected to prevent electrical shorts. Carefully remove the old connector and inspect the wiring harness for damage. Connect the male connector securely to the fuel level sensor, verifying that all four blade terminals are properly seated. Use dielectric grease on terminals to prevent corrosion and improve conductivity. Reconnect the battery and test the fuel gauge for proper operation before completing the installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The S-668 fuel level sensor connector undergoes rigorous quality control testing to guarantee fitment and function. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberS-668
Connector GenderMale
ContentsPigtail Assembly
Terminal GenderFemale
Terminal Type4 Blade Terminals

This part fits 158 vehicles. Search below:

YearMakeModelPositionNotes
1994ChevroletBlazerN/A
1994ChevroletC1500N/A
1994ChevroletC1500 SuburbanN/A
1994ChevroletC2500N/A
1994ChevroletC2500 SuburbanN/A
1994ChevroletC3500N/A
1994ChevroletK1500N/A
1994ChevroletK1500 SuburbanN/A
1994ChevroletK2500N/A
1994ChevroletK2500 SuburbanN/A
1994ChevroletK3500N/A
1994GMCC1500N/A
1994GMCC1500 SuburbanN/A
1994GMCC2500N/A
1994GMCC2500 SuburbanN/A
1994GMCC3500N/A
1994GMCJimmyN/A
1994GMCK1500N/A
1994GMCK1500 SuburbanN/A
1994GMCK2500N/A
1994GMCK2500 SuburbanN/A
1994GMCK3500N/A
1994GMCYukonN/A
1988CadillacAllanteN/A
1988CadillacCommercial ChassisN/A
1988CadillacEldoradoN/A
1988CadillacSevilleN/A
1988ChevroletCamaroN/ABlack; 4 Term. Female
1988ChevroletCapriceN/A
1988ChevroletCapriceN/ABlack; 4 Term. Female
1988ChevroletCavalierN/A
1988ChevroletCorsicaN/A
1988ChevroletCorvetteN/A
1988ChevroletMonte CarloN/A
1988ChevroletNovaN/A
1988ChevroletSpectrumN/A
1988ChevroletSprintN/A
1988Oldsmobile98N/A
1988OldsmobileCustom CruiserN/A
1988OldsmobileCutlass CalaisN/A
1988OldsmobileCutlass CalaisN/ABlack; 4 Term. Female
1988OldsmobileCutlass CieraN/A
1988OldsmobileCutlass CruiserN/A
1988OldsmobileCutlass SupremeN/A
1988OldsmobileDelta 88N/A
1988OldsmobileToronadoN/A
1987BuickRegalN/ABlack; 4 Term. Female
1987BuickRivieraN/A
1987BuickSkylarkN/A
1987BuickSkylarkN/ABlack; 4 Term. Female
1987CadillacAllanteN/A
1987CadillacCommercial ChassisN/A
1987CadillacEldoradoN/A
1987CadillacSevilleN/A
1987ChevroletCamaroN/A
1987ChevroletCapriceN/A
1987ChevroletCavalierN/A
1987ChevroletChevetteN/A
1987ChevroletCorsicaN/A
1987ChevroletCorvetteN/A
1987ChevroletEl CaminoN/A
1987ChevroletMonte CarloN/A
1987ChevroletNovaN/A
1987ChevroletSpectrumN/A
1987ChevroletSprintN/A
1987Oldsmobile98N/A
1987OldsmobileCalaisN/A
1987OldsmobileCustom CruiserN/A
1987OldsmobileCutlassN/A
1987OldsmobileCutlass CieraN/A
1987OldsmobileCutlass SupremeN/A
1987OldsmobileDelta 88N/A
1987OldsmobileToronadoN/A
1987PontiacGrand PrixN/A
1986BuickCenturyN/ABlack; 4 Term. Female
1986BuickRegalN/ABlack; 4 Term. Female
1986BuickRivieraN/A
1986CadillacCommercial ChassisN/A
1986CadillacDeVilleN/A
1986CadillacEldoradoN/A
1986CadillacSevilleN/A
1986ChevroletCamaroN/A
1986ChevroletCapriceN/A
1986ChevroletCavalierN/A
1986ChevroletChevetteN/A
1986ChevroletCorvetteN/A
1986ChevroletEl CaminoN/A
1986ChevroletMonte CarloN/A
1986ChevroletNovaN/A
1986ChevroletSpectrumN/A
1986ChevroletSprintN/A
1986Oldsmobile98N/A
1986OldsmobileCalaisN/A
1986OldsmobileCustom CruiserN/A
1986OldsmobileCutlassN/A
1986OldsmobileCutlass CieraN/A
1986OldsmobileCutlass SalonN/A
1986OldsmobileCutlass SupremeN/A
1986OldsmobileDelta 88N/A
1986OldsmobileToronadoN/A
1985BuickCenturyN/ABlack; 4 Term. Female
1985BuickRegalN/ABlack; 4 Term. Female
1985CadillacCommercial ChassisN/A
1985CadillacDeVilleN/A
1985CadillacEldoradoN/A
1985CadillacSevilleN/A
1985ChevroletCamaroN/A
1985ChevroletCapriceN/A
1985ChevroletCavalierN/A
1985ChevroletChevetteN/A
1985ChevroletCitation IIN/A
1985ChevroletCorvetteN/A
1985ChevroletEl CaminoN/A
1985ChevroletImpalaN/A
1985ChevroletMonte CarloN/A
1985ChevroletNovaN/A
1985ChevroletSpectrumN/A
1985ChevroletSprintN/A
1985Oldsmobile98N/A
1985OldsmobileCalaisN/A
1985OldsmobileCustom CruiserN/A
1985OldsmobileCutlassN/A
1985OldsmobileCutlass CieraN/A
1985OldsmobileCutlass SalonN/A
1985OldsmobileCutlass SupremeN/A
1985OldsmobileDelta 88N/A
1985OldsmobileToronadoN/A
1985Pontiac6000N/A
1985PontiacBonnevilleN/A
1985PontiacGrand AmN/A
1985PontiacGrand PrixN/A
1984BuickCenturyN/ABlack; 4 Term. Female
1984BuickRegalN/ABlack; 4 Term. Female
1984CadillacCommercial ChassisN/A
1984CadillacDeVilleN/A
1984CadillacEldoradoN/A
1984CadillacFleetwoodN/A
1984CadillacSevilleN/A
1984ChevroletCamaroN/A
1984ChevroletCapriceN/A
1984ChevroletCavalierN/A
1984ChevroletChevetteN/A
1984ChevroletCitation IIN/A
1984ChevroletCorvetteN/A
1984ChevroletEl CaminoN/A
1984ChevroletImpalaN/A
1984ChevroletMonte CarloN/A
1984Oldsmobile98N/A
1984OldsmobileCustom CruiserN/A
1984OldsmobileCutlass CalaisN/A
1984OldsmobileCutlass CieraN/A
1984OldsmobileCutlass SupremeN/A
1984OldsmobileDelta 88N/A
1984OldsmobileOmegaN/A
1984OldsmobileToronadoN/A
1984Pontiac6000N/A
1984PontiacBonnevilleN/A
1984PontiacGrand PrixN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

120855301P1359350-33957-51387278538888862257EC131PT323PTA1945

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.