Autotecnica TY1321020 Headlight Level Sensor - Rear Left
OE Quality 60-Day Returns
Autotecnica

Autotecnica TY1321020 Headlight Level Sensor - Rear Left

Brand Autotecnica TY1321020
Position Rear Left
Wiring Harness Length 425
Connector Color Black
Terminal Type Blade
Wire Quantity 1
Connector Quantity 1
Connector Shape Triangular
Terminal Quantity 3
Connector Gender Female
Terminal Gender Male
Fits Toyota · 3 vehicles

OE-style replacement. Built as a direct-fit headlight level sensor for the listed application.

Triangular connector. Black female housing with three blade terminals for a precise electrical connection.

Quality-managed production. Manufactured under ISO/TS 16949 standards and backed by a two-year warranty.

Cross-references Arnott Industries RH-3778, Autotecnica TY1321020 and Dorman - OE Solutions 924-777 for the same application. See all 9.

$164.37Free 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 $164.37
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Headlight Level Sensor options

Headlight Level Sensor Overview

The Autotecnica TY1321020 headlight level sensor restores the signal used by the leveling system to monitor suspension position and adjust headlamp aim. It is a direct-fit electrical replacement for select Toyota Sequoia applications with a rear left mounting location.

  • Fits 2006-2007 Toyota Sequoia, rear left.
  • Fits 2005 Toyota Sequoia, rear left, production date range from 08/2005.
  • Triangular female connector with three blade terminals for a secure electrical interface.
  • Black connector housing and single-wire harness layout.
  • Autotecnica TY1321020 replacement part number for streamlined ordering and verification.

Detailed Product Information

This headlight level sensor is built for vehicles equipped with automatic headlamp leveling, where suspension movement is translated into a control signal for beam adjustment. The TY1321020 matches the specified rear left location and uses the listed connector style, terminal count, and harness configuration to support proper electrical connection on compatible Toyota Sequoia models. This part cross-references Dorman - OE Solutions 924-777 for the same application.

Common Replacement Reasons

  • Headlamps that no longer level correctly after load changes.
  • Sensor fault codes related to headlight leveling input.
  • Uneven or incorrect headlamp aim caused by a failed position sensor.
  • Broken connector, damaged wiring, or worn terminal contact at the sensor.

Installation Notes

Verify the rear left mounting location, connector shape, terminal count, and production date before installation. Compare the original sensor and harness routing to confirm the correct electrical connection. Use the vehicle service procedure for calibration or aiming checks after replacement if required by the system.

Quality Assurance

Autotecnica manufactures aftermarket parts under ISO/TS 16949 quality management standards and backs this part with a two-year, unlimited mileage warranty.

Related reading

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007ToyotaSequoiaRear Left—
2006ToyotaSequoiaRear Left—
2005ToyotaSequoiaRear LeftProduction Date Range: From 08/2005
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Arnott Industries — RH-3778Autotecnica — TY1321020Dorman - OE Solutions — 924-777Standard Ignition — LSH1175S948489408-34010B71049HST-038V70-72-0367