GMC 128-10340 Rear View Mirror Passenger Right Power Door LT73B

( Part Type: Mirror Door ), ( Ipn: 128-10340 ), ( Fitment Type: Direct Replacement ), ( Surface Finish: Painted ), ( Modified Item: No ), ( Color: Black ), ( Placement On Vehicle: Right )

Review GMC Passenger Right Side View Power Door Mirror Black fits CANYON 2017–2018

The **GMC 128-10340 Passenger Side Right View Power Door Mirror (LT73B) for the 2017 2018 Canyon** is a precision-engineered automotive accessory designed to enhance both functionality and aesthetics for GMC Canyon owners seeking a seamless driving experience. This high-quality power door mirror is specifically tailored to fit the 2017 and 2018 model years of the GMC Canyon, ensuring a perfect match with the vehicle s sleek, modern design. Crafted with durability in mind, the mirror features a robust construction, combining a sturdy metal housing with a durable, weather-resistant exterior that resists rust, corrosion, and the elements, making it ideal for daily use in varying climates. The power operation mechanism is smooth and responsive, allowing for effortless adjustment with the push of a button, whether you're reversing, parking, or simply optimizing your rear visibility. The mirror s sleek, contoured shape complements the Canyon s aggressive yet refined styling, while the integrated LED turn signal ensures clear visibility for other drivers, enhancing safety on the road. Whether you're navigating tight parking spaces, driving in heavy traffic, or simply prefer the convenience of power-adjustable mirrors, this **LT73B** model delivers reliability and performance. Its seamless integration with the vehicle s existing electrical system ensures compatibility without the need for complex modifications, making it a straightforward upgrade for those looking to maintain or restore their Canyon s original factory look while enjoying modern convenience.

**Pros and Cons of Buying a 2017-2018 GMC Canyon (Part Number: 128-10340 Passenger Side Power Door Mirror, LT73B)**

### **Pros**

1. **Reliability and Durability** The GMC Canyon, based on the Chevrolet Silverado, is known for its robust build quality and strong towing capacity, making it suitable for work or off-road use. The 2017-2018 models were well-regarded for their durability, especially in the mid-size truck segment.

2. **Power Features** The **passenger side power door mirror (LT73B)** is a convenient upgrade, offering ease of adjustment from inside the vehicle. This can be particularly useful for passengers, especially in larger vehicles where visibility may be limited.

3. **Compatibility with Common Modifications** The Canyon s platform allows for easy aftermarket upgrades, including lift kits, off-road tires, and performance enhancements, which could increase the truck s value and functionality over time.

4. **Resale Value** GMC trucks, particularly those in good condition, hold their resale value reasonably well compared to some competitors. A well-maintained 2017-2018 Canyon could still fetch a decent price in the used market.

5. **Fuel Efficiency (Compared to Full-Sizes)** While not as efficient as modern trucks, the 2017-2018 Canyon with a V6 or diesel engine offered better MPG than full-size pickups, making it a practical choice for daily driving.

6. **Available in Multiple Trims** The LT trim (and higher) included features like leather-trimmed seats, a premium audio system, and optional tech upgrades, which could enhance comfort and convenience.

7. **Potential for Customization** The mirror (LT73B) is a relatively simple part to replace or upgrade, and if you plan to modify the vehicle further, this could be a cost-effective starting point.

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### **Cons**

1. **Age and Mileage Concerns** A 2017-2018 model is now **5-6 years old**, meaning it may have accumulated significant mileage unless well-maintained. Older trucks are more prone to wear on suspension, transmission, and drivetrain components.

2. **Rust and Corrosion Risks** Depending on where the truck was driven, rust (especially in the wheel wells, frame, and undercarriage) could be a concern. A thorough inspection is essential before purchase.

3. **Electrical System Issues** Power mirrors, windows, and other electrical components can fail over time. The **LT73B mirror** itself may have wiring or motor problems, and replacing it could be costly if the vehicle s electrical system is unreliable.

4. **Transmission and Engine Wear** Older trucks, particularly those with automatic transmissions or diesel engines, may experience **slipping gears, rough shifting, or fuel system clogs**. A pre-purchase inspection (PPI) with a mechanic is highly recommended.

5. **Safety Recalls and Updates** Check if the vehicle has unresolved recalls (via the **NHTSA website**). Some 2017-2018 Canions had issues with **airbag deployment, fuel pump failures, or transmission problems** that may not have been addressed.

6. **Depreciation** Mid-size trucks like the Canyon depreciate faster than full-sizes, meaning you may not recover much of your investment if selling later. Newer models (2020 ) offer better fuel efficiency and tech features.

7. **Potential for Hidden Damage** Without a **detailed inspection**, you might miss issues like **frame damage, exhaust leaks, or suspension wear**, which can be expensive to repair.

8. **Limited Warranty Coverage** If buying used, the original factory warranty (if any) is likely expired. Extended warranties (if available) may not cover all potential issues.

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### **Conclusion**

- You find it at a **fair price** (below market value for its condition and mileage).

- It has been **well-maintained** with service records.

- A **pre-purchase inspection** confirms no major mechanical or structural issues.

- You plan to **use it for work, hauling, or light off-roading** rather than daily commuting.

However, if you prioritize **reliability, fuel efficiency, and modern features**, a **newer model (2020 or later)** or a **different brand (like Ford Ranger or Ram 1500)** might be a better long-term investment.

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### **Recommendation**

1. **Get a Professional Inspection** Never buy without a **detailed mechanic review**, focusing on transmission, suspension, and electrical systems.

2. **Check for Rust and Frame Damage** Inspect the undercarriage, wheel wells, and frame rails for corrosion.

3. **Verify Service History** A truck with **regular oil changes, transmission fluid flushes, and timing belt replacements** (if applicable) will last longer.

4. **Test Drive Thoroughly** Listen for **unusual noises**, check for **smooth shifting**, and ensure all **power features (mirrors, windows, locks)** work properly.

5. **Negotiate Based on Findings** If the inspection reveals issues, use them to **lower the price** or walk away.

6. **Consider Alternatives** If the price is too high or the condition is questionable, look for a **newer used Canyon or a different mid-size truck** with better residual value.

If you **find a clean, low-mileage example with full service records** and can afford potential repairs, this could be a **solid used purchase**. However, if you want **long-term reliability without surprises**, a **newer or better-maintained truck** is the safer choice. Always **prioritize condition over price** in a used vehicle.

Details:

Most electronic parts are not plug and play. Please also use the pictures to ensure a proper fit. This 2017 2018 Gmc CANYON Door Mirror is in overall good condition. CANYON 18 power mirror, painted, non-heated opt DL6, R.

Shipping is via USPS or UPS. CANYON 17 power mirror, painted opt DL6, 6 pin, R.

part #: 128-10340 prices

• $94.95-$119.78

specifications mirroexter:

• for models: Canyon
• for makes: Gmc
• for years: 2017-2018
• part type: Mirror Door
• ipn: 128-10340
• fitment type: Direct Replacement
• surface finish: Painted
• modified item: No
• color: Black
• placement on vehicle: Right

general mirroexter:

• condition: Used
• Exterior Parts Accessories > Side View Mirrors > Mirror Assemblies

payments mirroexter:

• credit card: Visa
• other
• wallet: Paypal

returns mirroexter:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

seller mirroexter:

• # reviews: 76852
• city: Las Vegas, Nevada
• rating: 99.1%

shipping mirroexter:

• type: Fixed
• class: Standard, Expedited
• service: Standard, Expedited
• cost: $0.00
• transit: 3-6 Days

offer mirroexter:

• started: February 22, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

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