Brock Passenger Right Manual Mirror: Is it Worth It for Kodiak & TopKick Owners?

By Chris Bennett
Updated on June 16, 2025 10:01 AM

This post may contain affiliate links. Please read ourdisclosure policy

Brock Passenger Right Manual Mirror: Is it Worth It for Kodiak & TopKick Owners?

For older medium-duty trucks, finding affordable, reliable replacement parts is a constant challenge. The Brock Passenger Right Manual Mirror offers a solution for owners of 2003–2009 Chevrolet Kodiak and GMC TopKick models.

It promises OEM-level fitment and solid durability—without the high dealership price. Let’s take a closer look at how it performs in the real world.

Overall Rating

The Brock manual mirror earns a solid 4.3 out of 5. Its best quality is how well it fits the intended truck models. The durability is also commendable, especially for the price range.

It loses points on features, but that’s expected for a manual mirror. If you’re after a basic, dependable replacement, this one delivers.

You’re paying for performance, not unnecessary extras.

What It Fits and Replaces

This mirror is designed for a specific range of GM heavy-duty trucks. If your vehicle falls within these models, it’s a direct replacement:

  • 2003–2009 Chevrolet Kodiak (C4500–C8500)
  • 2003–2009 GMC TopKick (C4500–C8500)
  • Replaces OEM part numbers: 25826335, 25886101, GM1321681

It fits the passenger (right) side and installs using factory mounting points. No drilling, rewiring, or custom work is required.

Size and Construction

This mirror is built for size, strength, and weather resistance. It’s well-suited for the needs of commercial vehicles.

Key specifications:

  • Depth: 25.2 inches
  • Height: 11.25 inches
  • Width: 8.75 inches
  • Net weight: 15.1 lbs

It features a textured black plastic housing that resists cracking and UV damage. The surface can also be painted to match your truck’s finish.

Simplicity Over Features

The Brock mirror is intentionally basic—but that makes it more reliable.

It’s built for utility, not tech.

  • Manual adjustment means fewer failure points
  • Dual-glass system combines flat and convex views
  • No heating, lighting, or electronic elements
  • Meant for warm-weather or basic-use vehicles

For truck owners who want function over flash, it checks the right boxes.

Installation Made Easy

This mirror is one of the more DIY-friendly replacements available. You don’t need specialized tools or professional help to install it. Just a few common items will do:

  • Socket set
  • Phillips and flathead screwdrivers
  • Trim panel removal tool (if needed)

Installation process:

  1. Remove the old mirror and any wiring
  2. Line up the new mirror with the original bolt pattern
  3. Secure it using existing mounting points
  4. Manually adjust and test for tightness

If preferred, professional install typically costs $50 to $100. For most users, it’s an easy task to do at home.

On-the-Road Performance

The mirror performs well in daily truck use. It’s built to endure the conditions trucks face on highways and job sites.

  • Remains stable on rough terrain
  • Holds its position with minimal vibration
  • Dual-glass layout offers strong visibility
  • Textured housing resists sun, rain, and snow

The only downside: it lacks a heating element, which could be an issue in winter.

Price and Long-Term Value

At just over $220, the Brock mirror is an excellent deal. It’s much more affordable than dealership-sourced OEM mirrors. And yet, it doesn’t cut corners on materials or fit.

You also get a one-year limited warranty for peace of mind. Because it uses a manual design, there are fewer parts that can fail. That means less maintenance and fewer replacements over time.

For individual truck owners or fleet operators, that’s a big win.

Pros and Cons

This mirror isn’t trying to be high-tech—it’s trying to be reliable. And in that goal, it mostly succeeds.

What works:

  • The fit is exact, with no need for modifications
  • Visibility is excellent, thanks to the dual-glass setup
  • Installation is easy and doesn’t require special tools
  • It’s one of the most affordable options on the market

What to consider:

If you don’t need extra features, these limitations are easy to live with.

Is the Brock Mirror Worth It?

This mirror offers excellent value for the price. It fits right, installs easily, and does what it needs to do.

There are no fancy features—but that’s also why it’s dependable. Fewer moving parts mean fewer things to go wrong.

If you own a 2003–2009 Kodiak or TopKick and want a reliable fix, this mirror is a smart buy.

For most climates and general use, it delivers exactly what you need.