Standard Ignition CBS-1237 Headlight Dimmer Switch

Brand Standard Ignition CBS-1237
Attachment Method Bolt On
Connector Gender Female
Connector Shape Rectangular
Contents 1 Switch
Cruise Control Cancel Included No
Cruise Control On/Off Operator Inc No
Cruise Control Resume Included No
Cruise Control Set Included No
Cruise Control Speed Adjustment In No
Displayed Yes
Fog Light Operator Included Yes
Functions Combination Switch
Indicator Markings Included Yes
Latching High Beam Operator Includ Yes
Main Light Operator Included Yes
Momentary High Beam Flasher Includ Yes
New or Reman New
Number Of Connector Cavities 1
Rear Window Washer Spray Included No
Rear Window Wiper Delay Control In No
Rear Window Wiper Speed Setting In No
Running Light Operator Included No
Terminal Gender Male
Terminal Type Blade
Turn Signal Control Included Yes
Turn Signal/Directional Indicator Yes
Voltage 12
Windshield Washer Spray Included No
Windshield Wiper Delay Setting Inc No
Windshield Wiper Speed Setting Inc No
Fits Toyota · 25 vehicles

Bolt-on installation. Female rectangular connector and blade terminals simplify replacement.

Combination switch. Controls headlights, turn signals, fog lights, and high beams.

New part. Built as a 12-volt electrical switch assembly.

Cross-references Rostra Powertrain Controls 64-0235, Standard Ignition CBS-1237 and 1S4056 for the same application. See all 10.

$205.00Free 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 $205.00
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Headlight Dimmer Switch for Toyota Tundra

Restore reliable lighting control with this Standard Ignition headlight dimmer switch, part number CBS-1237. It is a new, bolt-on combination switch for 12-volt systems and includes the main light operator, fog light operator, turn signal control, latching high beam operator, momentary high beam flasher, indicator markings, and display function.

Key Features

  • Standard Ignition CBS-1237 headlight dimmer switch
  • Bolt-on attachment with 1 rectangular female connector
  • 16 blade terminals, 1 connector cavity
  • Combination switch functions for lighting and turn signals
  • Includes fog light operator and turn signal/directional indicator
  • Displayed design with indicator markings included
  • New replacement for 12-volt vehicles

Detailed Description

The CBS-1237 is a headlight dimmer switch built for lighting control on select Toyota Tundra models. It combines the primary headlight controls with turn signal operation and high-beam functions in one assembly, helping restore consistent driver input at the steering column. This part number, CBS-1237, is listed for 2000-2006 Toyota Tundra vehicles equipped with fog lights, and it also cross-references Rostra Powertrain Controls 64-0235 for the same application.

Fits 2000-2006 Toyota Tundra, N/A. Fits 2003-2006 Toyota Tundra, N/A.

What It Helps Fix

  • Intermittent or failed headlight dimmer operation
  • Inoperative high beam flash or latch function
  • Turn signal control issues at the steering column
  • Fog light switch control problems
  • Worn or unresponsive combination switch inputs

Installation Notes and Tips

This switch uses a bolt-on attachment style and a single rectangular female connector with 16 blade terminals. Verify connector shape, terminal count, and vehicle equipment before installation. Fitment is listed for Toyota Tundra models with fog lights, so confirm that option on the vehicle before ordering. Professional installation is recommended for proper steering column switch replacement.

Quality Assurance

Standard Ignition supplies this new replacement switch as an OE-style electrical component for the listed Toyota Tundra applications. The part is built to match the specified connector, terminal, and function layout for direct replacement use.

This part fits 25 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2006ToyotaTundra4.0LV6N/ACompatible with vehicles equipped with fog lights.
2006ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2006ToyotaTundra——N/A—
2005ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2005ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2005ToyotaTundra4.0LV6N/ACompatible with vehicles equipped with fog lights.
2005ToyotaTundra——N/A—
2004ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2004ToyotaTundra3.4LV6N/ACompatible with vehicles equipped with fog lights.
2004ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2004ToyotaTundra——N/A—
2003ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2003ToyotaTundra3.4LV6N/ACompatible with vehicles equipped with fog lights.
2003ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2003ToyotaTundra——N/A—
2002ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2002ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2002ToyotaTundra3.4LV6N/ACompatible with vehicles equipped with fog lights.
2001ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
2001ToyotaTundra3.4LV6N/ACompatible with vehicles equipped with fog lights.
2001ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2000ToyotaTundra4.7LV8N/ACompatible with vehicles equipped with fog lights.
2000ToyotaTundra3.4LV6N/ACompatible with vehicles equipped with fog lights.
2000ToyotaTundra——N/ACompatible with vehicles equipped with fog lights.
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Rostra Powertrain Controls — 64-0235Standard Ignition — CBS-12371S405618-125953-16755201-2168841400C050DL6643S14431SW4325