Standard Ignition Engine Coolant Temperature Sender TS-85
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 2
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Standard Ignition Engine Coolant Temperature Sender TS-85 - view 7
Standard Ignition Engine Coolant Temperature Sender TS-85
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 2
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 3
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 4
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 5
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 6
Standard Ignition Engine Coolant Temperature Sender TS-85 - view 7

Standard Ignition Engine Coolant Temperature Sender P/N:TS-85

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$24.99
MPN: TS-85
Item Package Quantity: 1
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Standard Ignition Engine Coolant Temperature Sender P/N:TS-85
Standard Ignition Engine Coolant Temperature Sender P/N:TS-85
$24.99

Keep the electric cooling fan switching on at the right coolant temperature with the Standard Ignition Engine Coolant Temperature Sender / Coolant Fan Switch TS-85. It's a direct-fit replacement for the 1982-1983 Chevrolet Celebrity, 1982-1983 Pontiac Firebird, 1985 Chevrolet Citation II, 1988-1989 Chevrolet P20, 1988-1991 Chevrolet P30, 1990 Cadillac Brougham, 1990 Chevrolet Camaro, and 1991 GMC P3500 (All engines). Because it's cataloged under both names, you may see it listed as a coolant temperature sender or a coolant fan switch.

Threaded into the engine's coolant passage, it monitors coolant temperature and closes its internal electrical contact at a calibrated set point, sending the signal that tells the fan controller to switch the cooling fan on.

  • Factory-calibrated: every unit is calibrated and tested to confirm switch actuation at its specified temperature set point.
  • Brass build: brass body with a 3/8-18 threaded fitting for installation.
  • Connection: a single round female plug-in connector paired with one male cylindrical-tube terminal.
  • Service-grade: robust design and high-grade materials built to hold up in demanding professional use.

Interchange: TFS4 · SW505 · FS112 · 14042375 · 14043275 · FS112SB
Manufacturer part number TS-85

Country of origin: Mexico.

This part cross-references / interchanges with the following part numbers:

TFS4, SW505, FS112, 14042375, 14043275, FS112SB

Frequently Asked Questions

What does the TS-85 do?

It's a temperature-actuated switch that closes its electrical contact at a calibrated set point to signal the fan controller to turn the engine cooling fan on. It's listed as both a coolant temperature sender and a coolant fan switch.

Which vehicles does it fit?

It's a direct-fit replacement for eight GM applications, including the Chevrolet Camaro, Celebrity, Citation II, P20, P30, Pontiac Firebird, Cadillac Brougham, and GMC P3500. See the Buyer's Guide tab for the exact years.

Is it a coolant sensor or a fan switch?

Both names apply — it's cataloged as an Engine Coolant Temperature Sender and described as a Coolant Fan Switch, and it functions as a temperature-actuated switch that signals the cooling fan controller.

What are the signs it may need replacing?

Signs can include the cooling fan not switching on with the engine running hot, or the fan behaving abnormally. These symptoms have other causes, so diagnose the circuit first; if this switch is at fault, the TS-85 replaces it.

How does it install and where is it made?

It uses a 3/8-18 threaded fitting with a single round female plug-in connector and one male cylindrical-tube terminal. Country of origin: Mexico. Consult the service procedure for the correct location and torque.

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