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DormanPart #: 56021
Dorman 56021 Door Mirror Glass - Left
⚙️ 156 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$69.13Free Shipping
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Cadillac, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 1500 Classic, Sierra 1500 HD Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500 HD, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, Silverado 2500, and Sierra 2500
🔄Easy Returns — Return within 60 days for a full refund
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Not what you need? Click here for all Door Mirror Glass options
Overview of Dorman 56021 Door Mirror Glass
The Dorman 56021 door mirror glass is designed specifically for select Cadillac, Chevrolet, and GMC models. This replacement mirror glass offers a precise fit and includes a backing plate for easy installation, making it a reliable choice for restoring your vehicle's side mirror functionality.
- Material: Durable plastic construction
- Dimensions: 6.299 inches length by 10.039 inches width
- Color: Silver finish for a factory look
- Attachment Type: Snap-on for straightforward installation
- Includes backing plate for secure mounting
- Heated mirror feature to prevent fog and ice buildup
- Indicator markings present for enhanced visibility
- Specific fit for Cadillac, Chevrolet, and GMC trucks and SUVs
Detailed Product Description
The Dorman 56021 door mirror glass is engineered to match the original equipment specifications for a range of vehicles including the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, and more. Its plastic material ensures durability while maintaining a lightweight profile. The silver color and integrated indicator markings align with the factory design, preserving the vehicle’s appearance and safety features. This mirror glass is heated, helping to reduce fog and ice accumulation in colder climates, which is essential for maintaining clear rear visibility. The snap-on attachment type and included backing plate simplify the replacement process, allowing for a secure and stable fit without the need for additional adhesives or tools.
Common Uses and Problem Solving
- Replaces cracked or broken door mirror glass
- Restores heated mirror functionality for defrosting
- Maintains visibility with indicator markings intact
- Eliminates distortion from damaged or warped glass
- Improves safety by ensuring proper side mirror performance
Installation Notes and Tips
- Ensure the vehicle model matches the specific fitment list before installation
- Carefully remove the damaged mirror glass to avoid damaging the backing plate
- Align the snap-on attachment points precisely for a secure fit
- Test the heated mirror function after installation to confirm proper operation
- Handle the glass carefully to prevent fingerprints or scratches
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 56021 door mirror glass undergoes quality checks to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to support customer confidence in their replacement parts.
| Brand | Dorman |
| Part Number | 56021 |
| Aspherical Glass | No |
| Attachment Type | Snap On |
| Blind Spot Indicator | No |
| Color | Silver |
| Convex Shaped Glass | No |
| Glass Shape | 6.299 in |
| Heated Mirror | Yes |
| Includes Backing Plate | Yes |
| Indicator Markings | Yes |
| Length | 6.299 |
| Material | Plastic |
| Package Contents | 1 Plastic Back Mirror |
| Turn Signal Indicator Present | No |
| Universal Or Specific Fit | Specific |
| Width | 10.039 |
This part fits 156 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 1500 Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | Chevrolet | Silverado 1500 HD Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | Chevrolet | Silverado 2500 HD Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | Chevrolet | Silverado 3500 Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | GMC | Sierra 1500 Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | GMC | Sierra 1500 HD Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | GMC | Sierra 2500 HD Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2007 | GMC | Sierra 3500 Classic | Left | Power; Without Turn Signal; with Heat | ||
| 2006 | Cadillac | Escalade | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Cadillac | Escalade ESV | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Cadillac | Escalade EXT | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Avalanche 1500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Avalanche 2500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Silverado 1500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Silverado 1500 HD | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Silverado 2500 HD | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Silverado 3500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Suburban 1500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Suburban 2500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | Chevrolet | Tahoe | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Sierra 1500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Sierra 1500 HD | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Sierra 2500 HD | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Sierra 3500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Yukon | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Yukon XL 1500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2006 | GMC | Yukon XL 2500 | Left | Power; Exc. Turn Signal; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Cadillac | Escalade | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Cadillac | Escalade | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Cadillac | Escalade ESV | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Cadillac | Escalade ESV | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Cadillac | Escalade EXT | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Cadillac | Escalade EXT | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Avalanche 1500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Avalanche 1500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Avalanche 2500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Avalanche 2500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Silverado 1500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Silverado 1500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Silverado 1500 HD | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Silverado 1500 HD | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Silverado 2500 HD | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Silverado 2500 HD | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Silverado 3500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Silverado 3500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Suburban 1500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Suburban 1500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Suburban 2500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Suburban 2500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | Chevrolet | Tahoe | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | Chevrolet | Tahoe | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Sierra 1500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Sierra 1500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Sierra 1500 HD | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Sierra 1500 HD | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Sierra 2500 HD | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Sierra 2500 HD | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Sierra 3500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Sierra 3500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Yukon | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Yukon | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Yukon XL 1500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Yukon XL 1500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2005 | GMC | Yukon XL 2500 | Left | Power; Exc. Turn Signal; From 4/01/05; 4.375 In. Diameter Motor Mount; w/Heat | ||
| 2005 | GMC | Yukon XL 2500 | Left | Power; Exc. Turn Signal; To 4/01/05; w/Heat | ||
| 2004 | Cadillac | Escalade | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Cadillac | Escalade ESV | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Cadillac | Escalade EXT | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Avalanche 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Avalanche 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Silverado 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Silverado 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Suburban 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Suburban 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | Chevrolet | Tahoe | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Sierra 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Sierra 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Yukon | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Yukon XL 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2004 | GMC | Yukon XL 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Cadillac | Escalade | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Cadillac | Escalade ESV | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Cadillac | Escalade EXT | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Avalanche 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Avalanche 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Silverado 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Silverado 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Silverado 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Suburban 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Suburban 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | Chevrolet | Tahoe | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Sierra 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Sierra 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Sierra 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Yukon | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Yukon XL 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2003 | GMC | Yukon XL 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Cadillac | Escalade | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Cadillac | Escalade EXT | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Avalanche 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Avalanche 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Silverado 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Silverado 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Silverado 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Suburban 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Suburban 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | Chevrolet | Tahoe | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Sierra 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Sierra 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Sierra 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Yukon | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Yukon XL 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2002 | GMC | Yukon XL 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Silverado 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Silverado 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Silverado 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Suburban 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Suburban 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | Chevrolet | Tahoe | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Sierra 1500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Sierra 2500 HD | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Sierra 3500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Yukon | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Yukon XL 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2001 | GMC | Yukon XL 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | Chevrolet | Suburban 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | Chevrolet | Suburban 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | Chevrolet | Tahoe | 5.3L | V8 | Left | Power; Without Turn Signal; with Heat |
| 2000 | Chevrolet | Tahoe | 4.8L | V8 | Left | Power; Without Turn Signal; with Heat |
| 2000 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | GMC | Yukon | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | GMC | Yukon XL 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 2000 | GMC | Yukon XL 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 1999 | Chevrolet | Silverado 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 1999 | Chevrolet | Silverado 2500 | Left | Power; Without Turn Signal; with Heat | ||
| 1999 | GMC | Sierra 1500 | Left | Power; Without Turn Signal; with Heat | ||
| 1999 | GMC | Sierra 2500 | Left | Power; Without Turn Signal; with Heat |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
124778451339-0028L2734HA3305867132
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.