Standard Ignition TS-85 Engine Coolant Temperature Sender

Brand Standard Ignition TS-85
Attachment Method Bolt On
Connector Gender Female
Connector Shape Round
Connector Type Plug In
Terminal Gender Male
Terminal Type Cylindrical tube
Thread Size 3/8-18 "
Fits Chevrolet, GMC, Cadillac, and Pontiac · 17 vehicles

Bolt-on installation. Plug-in connector and single female round connector simplify replacement.

Factory-calibrated. Calibrated and tested to confirm actuation at the specified temperature.

Precise performance. Creep-action bimetal design delivers consistent electrical contact.

Cross-references CSF 3736, FEL-PRO 35937 and 1S4346 for the same application. See all 13.

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Engine Coolant Temperature Sender Overview

Standard Ignition TS-85 is an engine coolant temperature sender built for vehicles that use a dashboard coolant temperature indicator light. It uses a bolt-on design with a round female plug-in connector and a single male cylindrical tube terminal for straightforward service replacement. This TS-85 sender is a direct-fit option for select Chevrolet, Cadillac, and GMC applications, including Camaro, P30, and P3500 models.

Key Features

  • Engine coolant temperature sender for indicator-light applications
  • Bolt-on attachment method for secure mounting
  • Round female connector with plug-in connection
  • Single male cylindrical tube terminal
  • 3/8-18 thread size
  • Factory-calibrated and tested for switch actuation at the specified temperature
  • Uses a formed bimetallic contact arm for precise electrical contact movement

Product Details

Standard Ignition TS-85 is engineered for accurate temperature signaling in cooling-system warning circuits. The internal thermal design uses calibrated wax and bimetallic contact movement to transfer the electrical signal at the specified lower-temperature set point. That makes it a practical replacement when the original sender no longer triggers the coolant warning light correctly. This part cross-references FEL-PRO 35937 for the same application.

Fits 1989-1992 Chevrolet Camaro, N/A; Fits 1988-1991 Chevrolet P30, N/A; Fits 1991 GMC P3500, N/A; Fits 1990 Cadillac Brougham, N/A; Fits 1988-1989 Chevrolet P20, N/A; Fits 1985 Chevrolet Citation II, N/A; Fits 1982-1983 Chevrolet Celebrity, N/A; Fits 1982-1983 Pontiac Firebird, N/A.

Common Problems This Part Can Address

  • Coolant temperature warning light stays on or does not illuminate
  • Incorrect temperature signal to the dashboard indicator circuit
  • Intermittent sender operation caused by worn internal contacts
  • Failed original sender on vehicles with a coolant temperature indicator light
  • Service issues related to inaccurate thermal switch actuation

Installation Notes and Tips

Verify the connector style, terminal type, and 3/8-18 thread size before installation. This sender is specified for vehicles equipped with a coolant temperature indicator light, so confirm the original circuit uses a light-based warning function rather than a gauge-only setup. Clean the mounting surface and inspect the connector for corrosion before connecting the harness. Standard Ignition TS-85 is also referenced by part number TS-85 for catalog and service lookup.

Quality Assurance

Standard Ignition manufactures this sender with controlled materials, calibrated temperature settings, and production testing to confirm switch actuation at the specified temperature. As an OE ignition product manufacturer, Standard Ignition maintains quality control from component selection through finished-unit testing.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
1992ChevroletCamaro——5.0LV8N/ACompatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1991ChevroletCamaroRS—5.0LV8N/ACompatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1991ChevroletP30—Stripped Chassis——N/ACoolant Temp; With Light
1991GMCP3500————N/ACompatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1990CadillacBrougham——5.7LV8N/AOne Blade Terminal with Light Engine Coolant Temperature Sender
1990ChevroletCamaro——5.0LV8N/ACompatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1990ChevroletP30—Stripped Chassis——N/ACoolant Temp; With Light
1989ChevroletCamaroRS—5.0LV8N/ACompatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
1989ChevroletP20—Stripped Chassis——N/ACoolant Temp; With Light
1989ChevroletP30—Stripped Chassis——N/ACoolant Temp; With Light
1988ChevroletP20—Stripped Chassis——N/ACoolant Temp; With Light
1988ChevroletP30—Stripped Chassis——N/ACoolant Temp; With Light
1985ChevroletCitation II——2.8LV6N/Aw/ Bullet Terminal; With Light
1983ChevroletCelebrity——2.8LV6N/Aw/ Bullet Terminal; With Light
1983PontiacFirebird——2.8LV6N/Aw/o 2 Speed Cooling Fan; w/ Heavy Duty Cooling; Low Speed; w/ Canada Emissions; With Light
1982ChevroletCelebrity——2.8LV6N/Aw/ Bullet Terminal; With Light
1982PontiacFirebird——2.8LV6N/Aw/o 2 Speed Cooling Fan; w/ Heavy Duty Cooling; Low Speed; w/ Canada Emissions; With Light
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
CSF — 3736FEL-PRO — 359371S43463-193253-138091404237514043275FS112FS112SBMT0772RF5SW505TFS4