Left Power Liftgate Strut for Tesla Model 3 2021-2023 1551488-99-B
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Tesla Model 3 2021 with factory power trunk
- Tesla Model 3 2022 with factory power trunk
- Tesla Model 3 2023 with factory power trunk
Product Overview
A powered trunk that rises unevenly, stops partway, makes grinding noises, or needs a hand to open may have a weak electric strut after hinges, alignment, wiring, latch, and the opposite support are checked. This unit replaces the left-side powered support.
It is not a plain gas spring. Match the electrical plug, end fittings, extended length, left-side orientation, and both reference numbers. A bent trunk lid or misaligned hinge can overload the new actuator and should be corrected before operation.
Key Features & Performance
- Left-side electric liftgate actuator
- Powered extension and support function
- Vehicle-specific electrical connector and end mounts
- Restores synchronized trunk movement after confirmed strut failure
- Made for factory-powered Model 3 trunk systems
Replaces Part Numbers
- 1551488-99-B
- 155148899B
- 1551488-00-C
- 155148800C
Common Uses
- Replacing a powered trunk strut that has become weak
- Correcting uneven opening caused by a failed left actuator
- Repairing grinding, binding, or intermittent powered movement
- Restoring hands-free power lift operation after collision inspection
Technical Specifications
- Product Type: Electric Liftgate Support Strut
- Position: Rear left
- Operation: Powered
- Compatible Model: Tesla Model 3 2021-2023
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Support the trunk lid securely before releasing either end of the strut
- Power down the vehicle and disconnect the relevant low-voltage circuit as instructed
- Compare connector, extended length, and ball-socket orientation
- Inspect hinges and lid alignment so the actuator is not forced sideways
- Run the trunk calibration or relearn procedure and watch both sides through a complete cycle
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, engine or equipment configuration, installed options, and previous repairs can affect fitment. Compare the original part, identifying numbers, dimensions, connections, and mounting details before purchase.
Frequently Asked Questions
Q: Which side does this strut fit? A: It fits the rear-left side of compatible factory-powered Model 3 trunks.
Q: Can it fix a trunk that stops halfway? A: Yes when the left actuator is weak or binding. Latch, alignment, wiring, calibration, and the opposite strut can cause the same symptom.
Q: Is it the same as a manual gas strut? A: No. This is an electric powered-lift actuator with a wiring connection.
Q: Should the trunk be calibrated afterward? A: Follow Tesla's service procedure for initialization or height calibration after installation.
Part Summary
keywords: Tesla Model 3 power trunk strut, 1551488-99-B replacement, 1551488-00-C liftgate actuator, Model 3 trunk stops halfway, left electric tailgate strut, 2021-2023 Tesla lift support, aftermarket Model 3 trunk actuator
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.