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Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool

Labwork Upgrade AM-EN-48953 Cam Phaser Retainer is a precision locking tool made from carbon tool steel, priced at $22.86. It locks camshaft actuators during timing service on select GM vehicles, ensuring accurate cam phaser alignment and preventing costly engine damage during repairs.

$22.86

● In stock

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

Key features

  • Made from high-quality carbon tool steel
  • Custom-developed for GM camshaft actuator locking
  • Fits 2006–2013 Lacrosse, Regal, Malibu, GL8 models
  • Includes 1 retainer and 4 mounting bolts
  • Ensures accurate cam phaser positioning
  • Simple to install and remove during service
  • Prevents camshaft rotation during timing work

Pros

  • +Durable construction resists wear
  • +Exact fit for specified GM engines
  • +Helps prevent engine timing errors
  • +Affordable compared to OEM tools
  • +Complete kit with necessary hardware
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Cons

  • Limited to specific GM models
  • Not compatible with non-VVT engines

About Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool

What is Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool?

The Labwork Upgrade AM-EN-48953 Cam Phaser Retainer is a specialized service tool designed to lock camshaft actuators in place during timing belt or chain replacement on variable valve timing (VVT) engines. This tool ensures the cam phaser remains in the correct position, preventing rotation that could lead to improper timing, misfires, or internal engine damage. Built for use with select GM models including the Lacrosse, Regal, Malibu, and GL8 series, it's an essential component for accurate and safe engine repairs.

Key features

  • Durable Material — Made from high-quality carbon tool steel for strength and longevity.
  • Precision Fit — Custom-developed to match OEM specifications for reliable engagement.
  • Easy Operation — Simple design allows quick installation and removal during service.
  • Complete Kit — Includes 1 cam retainer and 4 bolts for immediate use.
  • Model Compatibility — Designed for 2006–2013 GM vehicles including Lacrosse, Regal, Malibu, and GL8.
  • Service Support — Functions as a special service tool (SST) for timing system maintenance.
  • Secure Locking — Prevents camshaft rotation during critical engine assembly phases.

Who is Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool for?

This tool is ideal for automotive technicians, DIY mechanics, and repair shops working on GM vehicles equipped with variable cam timing. It’s especially valuable during timing belt or chain replacement, where precise cam phaser positioning is crucial. Users performing engine rebuilds or VVT system diagnostics will find this tool essential for maintaining engine integrity and avoiding costly rework.

How does Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool compare?

Compared to generic cam locking tools, the Labwork AM-EN-48953 offers a model-specific design that ensures exact fitment on targeted GM engines. Unlike universal tools that may slip or misalign, this tool provides secure, OEM-level positioning. It outperforms improvised solutions like zip ties or screwdrivers, which can damage components. While not interchangeable across all VVT systems, its precision makes it superior to multi-fit kits for the vehicles it supports.

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Best use cases

  • Timing belt replacement on 2010 Lacrosse
  • Camshaft actuator service on 2012 Malibu
  • Engine rebuild for 2009 Regal with VVT
  • VVT system diagnosis on GL8 models
  • Preventing cam drift during head work
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Is Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool right for you?

This tool is best for DIYers and technicians servicing 2006–2013 GM vehicles with variable valve timing. Intermediate skill level is recommended. If you're replacing a timing belt or working on the valvetrain, this tool prevents costly mistakes. Alternatives include OEM GM tools or universal kits, but they may lack precise fitment.

How it compares: Compared to universal cam locking tools, this Labwork model offers exact fitment for select GM engines. It outperforms improvised methods and multi-fit kits by ensuring secure, damage-free positioning during critical timing procedures.

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Frequently Asked Questions

What vehicles is the Labwork AM-EN-48953 tool compatible with?

It fits 2006–2009 Lacrosse, 2009–2013 New Regal, 2010–2013 New LACROSSE, 2011–2012 SLS, 2011–2013 GL8, GL8 Firstland, GL8S Captiva, and 2012–2013 Malibu. Always verify fitment with your specific engine.

Does this tool replace OEM service tools?

Yes, the Labwork AM-EN-48953 is designed as a direct replacement for GM special service tools used to lock cam phasers during timing belt or chain service on compatible models.

How do you use the cam phaser retainer tool?

Install the retainer plate over the cam phaser and secure it with the included bolts. This locks the actuator in position during timing belt or chain replacement to prevent rotation.

Is the Labwork tool made from durable material?

Yes, it's constructed from high-quality carbon tool steel for strength and resistance to wear during repeated use in professional or DIY repair environments.

Can this tool prevent engine damage during repairs?

Yes, by locking the cam phaser in place, it prevents unintended rotation that could cause valve-to-piston contact or timing misalignment, reducing risk of serious engine damage.

How much does Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool cost?

Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool is $22.86 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.

Is Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool in stock at Lab Work Auto?

Yes, Labwork Upgrade AM-EN-48953 Cam Phaser Retainer / Camshaft Actuator Locking Tool is currently in stock at Lab Work Auto.

Specifications

SKU
F8-013979
Last updated May 14, 2026