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Standard Ignition TW-40 Turn Signal SwitchOE Quality 60-Day Returns
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Part #: TW-40

Standard Ignition TW-40 Turn Signal Switch

⚙️ 122 vehicles fit this part
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🚗Fitment: Chevrolet, GMC, Oldsmobile, American Motors, Buick, and Pontiac, P30, P3500, P20, P2500, G10, G20, G30, G1500, G2500, G3500, P10, P1500, Cutlass Salon, P10 Van, P20 Van, P30 Van, Ambassador, Gremlin, Hornet, Javelin, Matador, AMX, Rebel, Rambler, Electra, LeSabre, Riviera, Skylark, Special, Wildcat, Bel Air, Biscayne, Camaro, Caprice, Chevelle, Chevy II, Corvair, El Camino, Impala, 442, 98, Cutlass, Delmont 88, Delta 88, F85, Toronado, Vista Cruiser, Bonneville, Catalina, Executive, Firebird, Grand Prix, GTO, LeMans, Tempest, and Malibu
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Reliable Turn Signal Switch for Select GM Vehicles

The Standard Ignition TW-40 turn signal switch is designed to provide dependable performance for a range of Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. This new switch features a male connector and blade terminals to ensure secure electrical connections and consistent operation.

  • New Standard Ignition turn signal switch, part number TW-40
  • Male connector gender with 4 connector cavities
  • 27 blade-type terminals with male terminal gender
  • Compatible with multiple GM makes and models including Camaro, Impala, Firebird, and more
  • Functions as a switch for turn signal operation

Product Details and Specifications

The TW-40 turn signal switch from Standard Ignition is engineered with 27 blade terminals arranged in 4 connector cavities, all featuring male terminal gender for reliable electrical contact. This switch is a new replacement part designed to restore proper turn signal functionality in vehicles such as the Chevrolet Camaro, Buick LeSabre, Pontiac Grand Prix, and GMC Sierra models. The male connector ensures a secure fit with the vehicle’s wiring harness, reducing the risk of loose connections or intermittent signal issues.

Compatible Vehicles and Applications

This turn signal switch is compatible with a variety of GM vehicles, including but not limited to:

  • Buick models like LeSabre, Skylark, and Riviera
  • Chevrolet models including Bel Air, Caprice, Impala, and El Camino
  • GMC trucks such as G10, G20, G30, P1500, P2500, and P3500
  • Oldsmobile Cutlass, Delta 88, and Toronado
  • Pontiac Firebird, Grand Prix, GTO, and LeMans

Common Issues Addressed by the TW-40 Turn Signal Switch

  • Intermittent or non-functioning turn signals
  • Turn signals that fail to cancel after a turn
  • Electrical connection problems due to worn or damaged terminals
  • Malfunctioning switch causing dashboard indicator issues
  • Replacement for broken or faulty original equipment switch

Installation Notes and Tips

  • Ensure the vehicle’s battery is disconnected before installation to prevent electrical shorts
  • Verify connector gender and terminal count match the vehicle’s wiring harness
  • Use appropriate tools to avoid damaging blade terminals during installation
  • Test turn signal operation after installation to confirm proper function
  • Consult vehicle-specific service manuals for detailed removal and installation procedures

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The TW-40 turn signal switch is a new component backed by Standard Ignition’s quality standards. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to ensure reliable service life.

BrandStandard Ignition
Part NumberTW-40
Connector GenderMale
DisplayedYes
FunctionsSwitch
New or RemanNew
Number Of Connector Cavities4
Terminal GenderMale; Male
Terminal TypeBlade Terminals

This part fits 122 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
1990ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1990GMCP3500Standard Cargo VanN/A
1989ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1989ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1989GMCP2500Standard Cargo VanN/A
1989GMCP3500Standard Cargo VanN/A
1988ChevroletP20Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1988ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1988GMCP2500Standard Cargo VanN/A
1988GMCP3500Standard Cargo VanN/A
1987ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1987ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1987GMCP2500Standard Cargo VanN/A
1987GMCP3500Standard Cargo VanN/A
1986ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1986ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1986GMCP2500Standard Cargo VanN/A
1986GMCP3500Standard Cargo VanN/A
1985ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1985ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1985GMCP2500Standard Cargo VanN/A
1985GMCP3500Standard Cargo VanN/A
1984ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1984ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1984GMCP2500Standard Cargo VanN/A
1984GMCP3500Standard Cargo VanN/A
1983ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1983ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1983GMCP2500Standard Cargo VanN/A
1983GMCP3500Standard Cargo VanN/A
1982ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1982ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1982GMCP2500Standard Cargo VanN/A
1982GMCP3500Standard Cargo VanN/A
1981ChevroletG10N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981ChevroletG20N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981ChevroletG30N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1981ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1981GMCG1500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981GMCG2500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981GMCG3500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1981GMCP2500Standard Cargo VanN/A
1981GMCP3500Standard Cargo VanN/A
1980ChevroletG10N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980ChevroletG20N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980ChevroletG30N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1980ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1980ChevroletP30Standard Cargo VanN/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1980GMCG1500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980GMCG2500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980GMCG3500N/ANot compatible with vehicles equipped with a Tilt Wheel.
1980GMCP1500N/A
1980GMCP2500Standard Cargo VanN/A
1980GMCP3500Standard Cargo VanN/A
1979ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1979ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1979ChevroletP30N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1978ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1978ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1978ChevroletP30N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1977ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1977ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1977ChevroletP30N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1976ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1976ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1976ChevroletP30N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1976OldsmobileCutlass SalonN/A
1975ChevroletP10N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1975ChevroletP20N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1975ChevroletP30N/Aw/ Tilt Steering Wheel; Hazard Knob Not Included
1968BuickLeSabreN/A
1968BuickRivieraN/A
1968BuickSkylarkN/A
1968ChevroletBel AirN/A
1968ChevroletCamaroN/A
1968ChevroletCapriceN/A
1968ChevroletEl CaminoN/A
1968ChevroletImpalaN/A
1968Oldsmobile98N/A
1968OldsmobileCutlass4.1LL6N/A
1968OldsmobileCutlass5.7LV8N/A
1968OldsmobileCutlass6.6LV8N/A
1968OldsmobileDelta 88N/A
1968OldsmobileToronadoN/A
1968PontiacBonnevilleN/Aw/o Cornering Lights
1968PontiacCatalinaN/Aw/o Cornering Lights
1968PontiacFirebirdN/Aw/o Cornering Lights
1968PontiacGrand PrixN/Aw/o Cornering Lights
1968PontiacGTO6.6LV8N/Aw/o Cornering Lights
1968PontiacLeMans4.1LL6N/Aw/o Cornering Lights
1968PontiacLeMans5.7LV8N/Aw/o Cornering Lights
1968PontiacLeMans6.6LV8N/Aw/o Cornering Lights
1968PontiacTempestN/Aw/o Cornering Lights; w/ Floor Shift; Floor Shift
1967BuickLeSabreN/A
1967BuickRivieraN/A
1967BuickSkylarkN/A
1967ChevroletBel AirN/A
1967ChevroletCamaroN/A
1967ChevroletCapriceN/A
1967ChevroletEl CaminoN/A
1967ChevroletImpalaN/A
1967ChevroletMalibuN/A
1967Oldsmobile98N/A
1967OldsmobileCutlass4.1LL6N/A
1967OldsmobileCutlass5.4LV8N/A
1967OldsmobileCutlass6.6LV8N/A
1967OldsmobileDelta 88N/A
1967OldsmobileToronadoN/A
1967PontiacBonnevilleN/Aw/o Cornering Lights
1967PontiacCatalinaN/Aw/o Cornering Lights
1967PontiacFirebirdN/Aw/o Cornering Lights
1967PontiacGrand PrixN/Aw/o Cornering Lights
1967PontiacGTO6.6LV8N/Aw/o Cornering Lights
1967PontiacLeMans3.8LL6N/Aw/o Cornering Lights
1967PontiacLeMans5.3LV8N/Aw/o Cornering Lights
1967PontiacTempestN/Aw/o Cornering Lights; w/ Floor Shift; Floor Shift
1966ChevroletBel AirN/ACompatible with vehicles with tilt steering wheel.
1966ChevroletCapriceN/ACompatible with vehicles with tilt steering wheel.
1966ChevroletEl CaminoN/A
1966ChevroletMalibuN/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:

0189359218935921S320953-58739DL6187DS159S3245SM229SW351

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

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