Standard Ignition TS-50 Engine Coolant Temperature Sender - Left

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Standard Ignition TS-50 Engine Coolant Temperature Sender - Left

Brand	Standard Ignition TS-50
Position	Left
Attachment Method	Bolt On
Connector Gender	Male
Connector Shape	Round
Connector Type	Plug In
Terminal Gender	Male
Terminal Type	Blade
Thread Size	1/2-14 "
Thread Size - NPT	1/2" - 14 Thread
Fits	Cadillac, Chevrolet, Pontiac, GMC, and Oldsmobile · 104 vehicles

Bolt-on installation. Plug-in connector and single blade terminal simplify replacement.

Factory-calibrated precision. Calibrated and tested to switch at the specified temperature.

OE-quality manufacturing. Built with robust materials and complete quality control throughout production.

Cross-references 1T1071, 3-1880 and 53-7714 for the same application. See all 8.

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Not what you need? See all Engine Coolant Temperature Sender options

Engine Coolant Temperature Sender for Classic GM Vehicles

Standard Ignition TS-50 is an engine coolant temperature sender built for vehicles that use a dashboard coolant temperature indicator light. It uses a calibrated thermal design with factory-tested actuation points for consistent electrical signaling in the cooling system.

1/2-14 NPT thread size for the specified application
Male round connector with plug-in connection
Male blade terminal, 1 terminal
Bolt-on attachment method
Factory-calibrated and tested for switch actuation at the specified temperature
Thermal switch design uses a formed bimetal contact arm for precise movement

Fitment and Application Details

Standard Ignition TS-50 is used in coolant temperature indicator light circuits on select Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models from 1973-1980. Fits 1979-1980 Cadillac Eldorado, N/A; Fits 1980 Cadillac Seville, N/A; Fits 1979 Chevrolet Caprice, N/A; Fits 1979 Chevrolet Impala, N/A; Fits 1973-1979 Pontiac Firebird, N/A; Fits 1977-1978 Chevrolet Camaro, N/A; Fits 1977-1978 Chevrolet Monza, N/A; Fits 1973-1978 Pontiac Catalina, N/A; Fits 1975-1977 Pontiac Grand LeMans, N/A; Fits 1976-1977 Pontiac Laurentian, N/A; Fits 1973-1977 Pontiac LeMans, N/A; Fits 1976-1977 Pontiac Parisienne, N/A; Fits 1976 Chevrolet Caprice, N/A; Fits 1973 Chevrolet Caprice, N/A; Fits 1976 Chevrolet G20, N/A; Fits 1976 Chevrolet G30, N/A; Fits 1976 Chevrolet Impala, N/A; Fits 1975-1976 Chevrolet Monza, N/A; Fits 1976 GMC G25, N/A; Fits 1973-1976 Pontiac Bonneville, N/A; Fits 1973-1976 Pontiac Grand Prix, N/A; Fits 1973-1975 Pontiac Grand Am, N/A; Fits 1973-1974 Chevrolet Bel Air, N/A; Fits 1974 Chevrolet El Camino, Left; Fits 1973-1974 Chevrolet Impala, Left; Fits 1973-1974 Chevrolet Monte Carlo, Left; Fits 1973-1974 Oldsmobile Omega, N/A; Fits 1973 Chevrolet El Camino, N/A; Fits 1973 Chevrolet Malibu, Left; Fits 1973 Pontiac GTO, N/A.

This part cross-references TU239 and TS7234 for the same application.

What This Sender Helps Address

Inoperative coolant temperature warning light
Incorrect temperature signal to the dash indicator circuit
Intermittent warning light operation caused by a worn thermal sender
Hard-to-diagnose cooling system warning issues on classic GM vehicles
Replacement needs for original-style temperature sender service

Installation Notes and Tips

Verify the thread size, connector style, and terminal configuration before installation. Match the vehicle’s original coolant temperature indicator-light setup and confirm the mounting location, especially on applications listed with a left-side position or top-of-engine note. Clean the threads and inspect the connector for corrosion before connecting the harness.

Quality Assurance

Standard Ignition manufactures this sender with controlled materials, calibrated thermal elements, and testing at the specified actuation temperature. As an OE ignition product manufacturer, Standard Ignition maintains quality control from component production through final inspection.

This part fits 104 vehicles

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

Year	Make	Model	Transmission	Liters	Cylinders	Fuel Type	Position	Notes
1980	Cadillac	Eldorado	—	—	—	GAS	N/A	Coolant Temp; With Light
1980	Cadillac	Eldorado	—	—	—	DIESEL	N/A	Coolant Temp; With Light
1980	Cadillac	Seville	—	5.7L	V8	GAS	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1980	Cadillac	Seville	—	5.7L	V8	DIESEL	N/A	With Light; Top of Engine
1979	Cadillac	Eldorado	—	5.7L	V8	—	N/A	Coolant Temp; With Light
1979	Chevrolet	Caprice	—	4.1L	L6	—	N/A	Metal Temp; w/ Calif. Emissions; With Light
1979	Chevrolet	Impala	—	4.1L	L6	—	N/A	Metal Temp; w/ Calif. Emissions; With Light
1979	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1978	Chevrolet	Camaro	—	4.1L	L6	—	N/A	Metal Engine Coolant Temperature Sender with Light
1978	Chevrolet	Monza	—	2.5L	L4	—	N/A	Metal Engine Coolant Temperature Sender with Light
1978	Pontiac	Catalina	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1978	Pontiac	Catalina	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1978	Pontiac	Catalina	—	4.9L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1978	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Chevrolet	Camaro	—	4.1L	L6	—	N/A	Metal Engine Coolant Temperature Sender with Light
1977	Chevrolet	Monza	—	2.3L	L4	—	N/A	Metal Engine Coolant Temperature Sender with Light
1977	Pontiac	Catalina	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Catalina	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Catalina	—	4.9L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Firebird	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Firebird	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Firebird	—	4.9L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Grand LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Grand LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Grand LeMans	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Grand LeMans	—	4.9L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Laurentian	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Laurentian	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	LeMans	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	LeMans	—	4.9L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Parisienne	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1977	Pontiac	Parisienne	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Chevrolet	Caprice	—	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Chevrolet	G20	—	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Chevrolet	G30	—	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Chevrolet	Impala	—	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Chevrolet	Monza	—	2.3L	L4	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	GMC	G25	—	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Bonneville	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Catalina	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Firebird	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Firebird	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand LeMans	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand LeMans	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand LeMans	—	4.3L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Grand Prix	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Laurentian	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	LeMans	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	LeMans	—	5.0L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	LeMans	—	4.3L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1976	Pontiac	Parisienne	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Chevrolet	Monza	—	2.3L	L4	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Bonneville	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Catalina	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Firebird	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Firebird	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Grand Am	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Grand LeMans	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	Grand Prix	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1975	Pontiac	LeMans	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Chevrolet	Bel Air	Automatic	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Chevrolet	El Camino	Automatic	7.4L	V8	—	Left	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Chevrolet	Impala	Automatic	7.4L	V8	—	Left	1 Terminal, with Light
1974	Chevrolet	Monte Carlo	Automatic	7.4L	V8	—	Left	1 Terminal, with Light
1974	Oldsmobile	Omega	Automatic	4.1L	L6	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Bonneville	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Catalina	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Firebird	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Firebird	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Grand Am	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	Grand Prix	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	LeMans	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1974	Pontiac	LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Chevrolet	Bel Air	Automatic	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Chevrolet	Caprice	Automatic	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Chevrolet	El Camino	Automatic	7.4L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Chevrolet	Impala	Automatic	7.4L	V8	—	Left	1 Terminal, with Light
1973	Chevrolet	Malibu	Automatic	7.4L	V8	—	Left	1 Terminal, with Light
1973	Chevrolet	Monte Carlo	Automatic	7.4L	V8	—	Left	1 Terminal, with Light
1973	Oldsmobile	Omega	Automatic	4.1L	L6	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Bonneville	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Catalina	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Firebird	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Firebird	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Firebird	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Firebird	Automatic	4.1L	L6	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Grand Am	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	Grand Prix	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	GTO	—	—	—	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	LeMans	Automatic	4.1L	L6	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	LeMans	—	7.5L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	LeMans	—	6.6L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1973	Pontiac	LeMans	—	5.7L	V8	—	N/A	Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
No rows match your filter.

Directly replaces or cross-references 8 part numbers

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

1T10713-188053-771425036982TS7234TU239TW35WT7234