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Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport

Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport is a direct-replacement electric lock motor priced at $20.90. Designed for 1996–2004 models, it ensures secure, reliable trunk access control and is ideal for restoring automatic locking functionality in older SUVs.

$20.90

● In stock

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Price and availability may change. Click to see current details on Lab Work Auto.

Key features

  • Exact fit for 1996–2004 Mitsubishi Montero Pajero Sport
  • OEM-spec MR503021 replacement for reliable performance
  • Electric lock actuator enables remote trunk access
  • Durable construction resists moisture and wear
  • Plug-and-play installation with factory harness
  • Single-unit pack includes one trunk lock actuator
  • Verified compatibility with Pajero Sport models

Pros

  • +Affordable at $20.90
  • +Direct OEM replacement fit
  • +Easy DIY installation
  • +Restores remote locking
  • +New condition, not refurbished
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Cons

  • No installation hardware included
  • Fits specific model years only

About Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport

What is Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport?

This OEM-spec replacement actuator restores proper function to the rear trunk door locking system on Mitsubishi Montero Pajero Sport models from 1996 to 2004. Designed as a direct-fit part with part number MR503021, it replaces worn or failed factory actuators that cause inconsistent locking, manual override issues, or remote key fob malfunctions. Priced at $20.90 and sold by Lab Work Auto, this component integrates seamlessly into the existing electrical system without modification, making it a cost-effective solution for DIY mechanics and repair shops alike.

Key features

  • Exact Fit — Compatible with Mitsubishi Montero Pajero Sport models from 1996–2004.
  • OEM Replacement — Matches original MR503021 specification for reliable performance.
  • Electric Operation — Enables smooth, remote-activated trunk locking and unlocking.
  • Durable Build — Constructed for resistance to moisture and mechanical wear in rear door environments.
  • Plug-and-Play Install — Direct wiring harness compatibility simplifies replacement.
  • Single Unit Pack — Includes one trunk tailgate lock actuator with no additional hardware.
  • Verified Compatibility — Confirmed fit for Pajero Sport variants requiring MR503021.

Who is Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport for?

This actuator is ideal for owners of 1996–2004 Mitsubishi Montero Pajero Sport SUVs experiencing rear trunk lock failure. It serves DIY auto repairers, mobile mechanics, and fleet maintenance teams seeking an affordable, reliable fix without sourcing used parts. It's especially useful for vehicles used in outdoor, coastal, or high-mileage conditions where lock mechanisms are prone to wear.

How does Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport compare?

Compared to salvaged OEM units, this new actuator offers longer service life and consistent performance. It outperforms generic aftermarket locks by maintaining precise fit and electrical compatibility. Unlike full trunk harness replacements or dealer-sourced parts, it provides a targeted, budget-friendly repair option without compromising reliability or safety in access control.

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Best use cases

  • Replace failed rear trunk lock actuator
  • Restore key fob trunk functionality
  • Repair moisture-damaged lock mechanism
  • Upgrade from manual to electric lock
  • Fix inconsistent locking on older SUVs
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Is Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport right for you?

This actuator is best for Mitsubishi Montero Pajero Sport owners from 1996–2004 needing to restore rear trunk locking. Suitable for DIYers with basic tools and wiring knowledge. Not for newer models or vehicles requiring different part numbers. Consider checking electrical connections before replacement. Alternatives include used OEM units or dealer parts, which may cost more.

How it compares: Compared to used or refurbished actuators, this new unit offers better longevity and reliability. It's more affordable than dealer-sourced replacements while maintaining OEM compatibility, outperforming generic locks that may lack precise fit or durability in harsh conditions.

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Frequently Asked Questions

What vehicles does this lock actuator fit?

This actuator fits Mitsubishi Montero Pajero Sport models from 1996 to 2004. It replaces part number MR503021 and is designed for exact compatibility with these SUVs' rear trunk systems.

Does this actuator work with the key fob?

Yes, once installed, the actuator restores full electric operation, allowing remote locking and unlocking via the factory key fob or interior switch on compatible models.

How difficult is installation?

Installation is moderate, requiring removal of the trunk door panel and basic hand tools. It connects directly to the existing wiring harness for plug-and-play setup.

Is this a new or used part?

This is a brand-new rear tailgate lock actuator, not refurbished or salvaged. It ensures reliable performance and longer service life compared to used components.

Can I install this myself?

Yes, DIYers with basic mechanical skills can install this actuator. You'll need screwdrivers and panel removal tools. No programming or calibration is required post-install.

How much does Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport cost?

Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport is $20.90 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.

Is Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport in stock at Lab Work Auto?

Yes, Rear Tailgate Trunk Door Lock Actuator Fit For Mitsubishi Montero Pajero Sport is currently in stock at Lab Work Auto.

Specifications

SKU
F8-020044
Last updated May 14, 2026