Standard Ignition TS-409 Engine Coolant Temperature Sender

Brand Standard Ignition TS-409
Attachment Method Direct
Color Black
Connector Gender Female
Connector Shape Square
Connector Type Plug In
Finish Metal, Plastic
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits Volkswagen · 25 vehicles

Direct replacement. Plug-in coolant temperature sender for straightforward installation.

Square connector. Female plug with four blade terminals for a secure connection.

12-volt design. Built with metal and plastic construction.

Cross-references MTC/Ronak 9356, Standard Ignition TS-409 and 357919501 for the same application. See all 6.

$48.89Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $48.89
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Coolant Temperature Sender for Volkswagen

Standard Ignition TS-409 is an engine coolant temperature sender built for direct attachment and 12-volt electrical systems. It uses a square, plug-in female connector with male blade terminals for a secure connection in the cooling system circuit.

Key Features

  • Engine coolant temperature sender for gauge-equipped applications
  • Direct attachment method for straightforward replacement
  • Square female connector with plug-in design
  • Black metal and plastic finish
  • 12-volt electrical specification
  • Male blade terminals, 4-terminal design

Product Details

This Standard Ignition TS-409 coolant temperature sender is used to relay engine coolant temperature information to the gauge system. It is listed for Volkswagen Jetta, Golf, and Passat applications with gauges, including Fits 1993-1999 Volkswagen Jetta, N/A; Fits 1993-1997 Volkswagen Golf, N/A; Fits 1996-1997 Volkswagen Passat, N/A; and Fits 1993-1994 Volkswagen Passat, N/A. If you are replacing a failed sender on a Volkswagen Jetta, Golf, or Passat, TS-409 provides the correct connector style and terminal layout for the listed vehicles.

This part cross-references Standard Ignition TS6133 for the same application.

Common Issues This Part May Resolve

  • Inaccurate or erratic coolant temperature gauge readings
  • Gauge needle staying low, high, or fluctuating unexpectedly
  • Temperature signal loss from a worn sender
  • Connector mismatch during cooling system repair
  • Replacement needs on gauge-equipped Volkswagen cooling circuits

Installation Notes and Tips

Verify the connector shape, terminal count, and vehicle application before installation. This sender uses a direct attachment method and is intended for the listed Volkswagen models with gauges. Confirm the cooling system is cool before service and inspect the harness connector for corrosion or damage during replacement.

Quality Assurance

Standard Ignition manufactures electrical and engine management components for service replacement use. TS-409 is built with a metal and plastic finish and the specified connector and terminal configuration for the listed applications.

This part fits 25 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1999VolkswagenJetta2.0LL4N/AFits engines with gauges.
1999VolkswagenJetta1.9LL4N/AFits engines with gauges.
1998VolkswagenJetta1.9LL4N/AFits engines with gauges.
1997VolkswagenGolf1.9LL4N/AFits engines with gauges.
1997VolkswagenJetta1.9LL4N/AFits engines with gauges.
1997VolkswagenPassat1.9LL4N/AFits engines with gauges.
1996VolkswagenGolf1.8LL4N/AFits engines with gauges.
1996VolkswagenGolf1.9LL4N/AFits engines with gauges.
1996VolkswagenGolf2.0LL4N/AFits engines with gauges.
1996VolkswagenJetta1.9LL4N/AFits engines with gauges.
1996VolkswagenPassat1.9LL4N/AFits engines with gauges.
1995VolkswagenGolf1.8LL4N/AFits engines with gauges.
1995VolkswagenGolf1.9LL4N/AFits engines with gauges.
1995VolkswagenGolf2.0LL4N/AFits engines with gauges.
1995VolkswagenJetta1.9LL4N/AFits engines with gauges.
1994VolkswagenGolf1.8LL4N/AFits engines with gauges.
1994VolkswagenGolf1.9LL4N/AFits engines with gauges.
1994VolkswagenGolf2.0LL4N/AFits engines with gauges.
1994VolkswagenJetta1.9LL4N/AFits engines with gauges.
1994VolkswagenPassat1.9LL4N/AFits engines with gauges.
1993VolkswagenGolf1.8LL4N/AFits engines with gauges.
1993VolkswagenGolf1.9LL4N/AFits engines with gauges.
1993VolkswagenGolf2.0LL4N/AFits engines with gauges.
1993VolkswagenJetta1.9LL4N/AFits engines with gauges.
1993VolkswagenPassat1.9LL4N/AFits engines with gauges.
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MTC/Ronak — 9356Standard Ignition — TS-409357919501TS6133TU265WT731