GruvenParts.com Strengthened Spur Gear for 2007+ GM Trucks Folding Mirror Assembly

$99.99

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Description

GM Power Folding Mirror Repair Kit (Billet Steel)

Stop replacing $1,000 mirrors with the same flawed parts. The factory power-folding mirrors on GM trucks and SUVs fail because of a single, inexpensive plastic gear. When that gear cracks, dealers charge upwards of $700–$1,200 for a full mirror assembly that carries the exact same defect.

GruvenParts.com provides a permanent, engineered solution: high-strength Billet Steel gears and high-torque motors designed to outlast the vehicle.

The Engineering Gap: OEM Failure vs. GruvenParts Solution

Feature	OEM Factory Unit / Boost Auto	GruvenParts Billet Solution
Gear Material	Thin, fragile plastic spur gear.	High-strength Billet Steel (integral spiral shaft).
Failure Mode	Fatigue cracking from age or minor impact.	Virtually indestructible; tested to 5,000+ cycles.
Motor Specs	Low-torque; prone to burnout.	High-torque custom motor for smooth operation.
Grounding	Externally grounded (Incompatible with metal).	Internally grounded to prevent BCM short circuits.
Cost	$700 - $1,200 (Full assembly).	Under $100 (DIY Gear/Motor Kit).

Critical Technical Note: Why the Motor Matters

You cannot simply install a metal gear onto the factory GM motor. The OEM motor circuit is not designed for a conductive metal gear; attempting to "mix and match" will short out your Body Control Module (BCM). Every GruvenParts kit includes our custom-engineered, internally grounded motor to ensure electrical safety and increased torque.

Choosing Your Repair Path

Path 1: DIY Gear & Motor Kit The most cost-effective choice for those comfortable with a workbench repair.

Includes: 1 or 2 Billet Steel Gears and High-Torque Motors.
Best For: Owners looking for a permanent fix at the lowest price point.
Compatibility: Fits 2007–Present GM Non-Tow Mirrors (Silverado, Sierra, Tahoe, Yukon, Suburban, Acadia, Traverse, Enclave, Escalade).

Path 2: Pre-Assembled Drive Unit (Core Exchange)

Skip the internal assembly and swap the entire drive unit.

Includes: A fully rebuilt motor drive unit with the steel gear and motor already installed and tested.
Process: Requires a $30 core deposit. Send us your rebuildable old unit to receive your refund.
Note: Due to high demand and core availability, lead times can vary (approx. 4–6 weeks). For the fastest turnaround, you may send your unit in for a same-day rebuild.

Application & Fitment

This kit is designed for Standard (Non-Towing) Power Folding Mirrors on the following 2007–Present models:

Chevy: Silverado, Tahoe, Suburban, Avalanche, Traverse.

GMC: Sierra, Yukon, Denali, Acadia.

Cadillac/Buick: Escalade, Enclave.

Warranty: This product carries a Limited Lifetime Warranty. If the gear or motor fails under normal operating conditions, we will replace it free of charge—you only pay shipping.

Installation & DIY Support Library

We’ve documented the repair process across all compatible GM generations. Select the guide below that matches your vehicle's year and model.

2007–2013 Trucks & SUVs (and 2014 Tahoe/Suburban)

Includes Silverado, Sierra, Tahoe, Suburban, Yukon, and Escalade.

Video Walkthrough – Watch the full step-by-step disassembly and gear replacement.

PDF Guide – Downloadable instructions for your workbench.

Web-Based DIY – Mobile-friendly photo guide.

2014–2018 Silverado & Sierra

Note: These models use updated plastics in the mirror frame, but the internal drive unit remains compatible.

PDF Supplemental Guide – Specific instructions for the 2014+ pickup mirror housing.

2015–2019 Tahoe, Suburban & Yukon

SUV-Specific Product Page – View detailed instructions for the updated SUV mirror assemblies.

GMC Acadia, Chevy Traverse, Saturn Outlook

Supplemental Instructions – Specific tips for the GM Lambda platform power-folding units.

Expert Installation Tips & FAQ

To ensure a successful repair and protect your vehicle's electronics, please review these critical requirements before beginning your installation:

The "No-Mix" Rule (Electrical Safety): Never attempt to install the Billet Steel gear using the original OEM motor. The factory motor is externally grounded; using it with a metal gear will create a short circuit and permanently damage your Body Control Module (BCM). You must use the internally grounded motor provided in our kits.
Mirror Type Verification: These parts are specifically engineered for Standard (Non-Tow) Mirrors. If your mirror extends outward for towing, these gears will not fit. Click here for our Towing Mirror Gear Page.
2014+ Pickup Differences: If you own a 2014 or newer Silverado/Sierra, the mirror frame plastics differ from earlier generations. While the internal drive unit is identical, the housing disassembly requires a slightly different approach. Please refer specifically to our 2014-2018 PDF Guide.
The "Core" Condition (Option 2): If purchasing the pre-assembled drive unit, your returned "core" must be in rebuildable condition. We can only accept units where the motor or spur gear is the point of failure. If the main plastic housing or frame of your drive unit is physically shattered, it cannot be rebuilt or refunded.
Tool Tip: We recommend having a basic set of trim removal tools and a small socket set. Take photos during disassembly to ensure wire routing remains clear for the re-install.

**** NEED SPARE POWER FOLDING NON-TOW MIRROR PARTS ? PLEASE CLICK HERE FOR THE SPARE PARTS PAGE ****

639 Reviews

5
Perfect solution for your folding mirrors it worked great on my cadillac EXT

Posted by captaincristelo@gmail.com on 23rd Aug 2017

Surprisingly hard to find product it took me a lot of research and this was better than what I expected also great and prompt customer service I recommend it 100% and the motors are a lot faster than the original ones
5
works great and only $50 to fix a $700-800 job at the dealer

Posted by Unknown on 23rd Aug 2017

This part works absolutely perfect to replace the broken OEM plastic cog. Would have cost $700-800 dollars for the dealer to fix. This is the second time this same mirror has broken. First time was under warranty so no big deal. But I wasn't about to pay $800 again to fix the same mirror with obviously inferior parts. It was time consuming but TOTALLY worth the time and only $50!!!!!! I bought a second just in case this happens again....to the other mirror
4
repairing my tahoe mirror

Posted by Vito Sperando on 22nd Aug 2017

Good quality parts , wish there was a better way to attach large brass gear. Nervous gear with not hold on ? But good so far . --Response-- Thanks Vito. The 24 hour epoxy will hold the gear to main shaft forever, I havent seen 1 come loose yet! The epoxy is actually stronger than the parent material so no issues with it holding up. As always let us know if you have any questions or concerns and thanks for your purchase. Paul@GruvenParts.com
5
Awesome Part

Posted by Unknown on 21st Aug 2017

This part is just what I needed to repair my mirror. Awesome with easy install instructions on the internet.
4
Looks like it would be much better than oem

Posted by Jimmy Williams on 17th Aug 2017

Haven't got it installed yet but looks real good
5
Perfect Fix

Posted by Sam L on 13th Aug 2017

Thank you guys for making this kit. Following your instructions I was able to repair both mirrors in about 3 hours. The parts fit perfectly and having the instruction printed out made it very easy to get this job done. I think you should add some comments about placing match marks where the wires are routed and on the motor casing before disassembly. I use a quick drying paint marker. This insures the motor casing is properly orientated with the bolt holes when you bolt it all back together. Another thing I marked was the location of the openings in the spring retainer. I used a socket to compress it in a vise and channel locks to turn the retainer until the marks were aligned. Then you can simply (slowly) loosen the vise while holding the assembly to relieve the spring pressure. Assembly is the reverse.
5
Correct way to Repair amd Replace Yukon XL Denali Mirror Motor

Posted by Bruce on 3rd Aug 2017

Passenger side mirror on 2008 Yukon XL Denali would not fold. Suspected broken plastic gear. After watching You tube video concerning this problem, found the replacement brass gear and accompanying motor at GruvenParts.com. Bought the two gear/motor set. I am now prepared when the driver's side gear breaks. With shipping, the two gear and motor set was approximately $100. Already had the recommended JB Weld epoxy. Completed the reassembly of everything tonight (8/3/2017). Watch related You Tube videos as well as following the GruvenParts instructions. Removing and replacing motor gear spring can be a challenge. I drilled a hold in a 2x2 piece of wood to remove and replace spring. Worked great. Good luck.
4
Great fix

Posted by Unknown on 29th Jul 2017

I had both fold in mirrors for nay 2009 Yukon not working. I bought the replacement motors and brass spur gear for both mirrors for approximately $89. Add some epoxy and lubricant that was suggested and it was a little over $100. The DIY on website was very helpful. I think it could've used a little more details on how to put things back together and aligned right, but I figured it out pretty quickly. That being said here are 2 youtube videos that were of great help https://www.youtube.com/watch?v=9RTA6wvBfoE https://www.youtube.com/watch?v=1xUFUBWByR8 Paul was great to work with. He took my calls and was very patient with me. New mirrors would've cost over $350 each, so this was a great deal.
5
The perfect fix!

Posted by Steve on 29th Jul 2017

If you are at all inclined to fix things yourself, this is the perfect project. Simple repair for a cheap GM design that will eventually fail on your vehicle. The DIY instructions provided on the site make this a very simple repair. You have the option to do the entire fix, including the motot and gear parts, or just purchase the replacement motor and drive unit outright and install it. Motor is quiet and much faster than the original design and the brass gear will certainly last for years of service. Don't go the quick route and buy a foreign mirror with the same plastic gearing that will also require you to paint it when yours is easily repaired.