Headlight range adjustment sensor, rear SUBARU LEGACY 2010
OEM: 84031FG000 112412 B1620042
Disassembled car photo
Engine running
Tested before shipping
Guaranteed quality
Fast delivery 3–7 days
14-day returns
Details for this exact part
Code
84031FG000 112412 B1620042
OEM
84031FG000 112412 B1620042
Condition
Used
Availability
1 in stock - ready to ship
Make, model
SUBARU LEGACY 2009-2014
Year
2010
Engine
Diesel 2.0D 110KW EE20Z
VIN
JF1BRDLZ4BG045604
What is this part and why does it matter?
The rear headlight leveling sensor measures ride height at the rear axle, providing data used to automatically adjust headlight beam angle based on vehicle load.
If you notice any of the following, the part likely needs replacement:
Headlights not adjusting despite load changes
Warning light related to the headlight leveling system
Headlight aim stuck too high or too low
Installation information
Mounted on the rear suspension, connecting to the vehicle wiring harness — requires calibration after installation.
Frequently asked questions
A heavily loaded vehicle sits lower at the rear, which tilts the headlight beam upward — this sensor detects that change so the system can compensate automatically, preventing the beam from dazzling oncoming traffic.
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August 2026
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Toyota Avensis
August 2026
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June 2026
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