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SKP SK521645 Suspension Control Arm and Ball Joint Assembly - Front Left Lower
| Brand | SKP SK521645 |
|---|---|
| Position | Front Left Lower |
| Fits | Cadillac, Chevrolet, and GMC · 154 vehicles |
Direct-fit replacement. Built for suspension service on listed truck and SUV applications.
Control arm assembly. Includes the ball joint assembly for a complete suspension repair.
OE cross-reference. Matches common interchange numbers for the same application.
Cross-references Dorman - OE Solutions 521-645, MOOG Chassis Products RK620888 and 521645 for the same application. See all 6.
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Overview
The SKP SK521645 is a suspension control arm and ball joint assembly for the front left lower position. It is built for direct replacement applications across a wide range of Chevrolet, GMC, and Cadillac trucks and SUVs, including Silverado 1500, Sierra 1500, Tahoe, and Yukon models.
Use this part when you need a replacement for worn suspension linkage in vehicles that match the listed cast-iron-arm and steering-knuckle requirements. The SK521645 part number is also referenced by common interchange numbers for the same application.
Key Features
- Suspension control arm and ball joint assembly for the front left lower position
- Direct-fit replacement for listed Chevrolet, GMC, and Cadillac applications
- Coverage includes multiple model years of Silverado 1500 and Sierra 1500
- Also fits selected Tahoe, Suburban, Yukon, Escalade, and Avalanche applications
- Cross-references Dorman OE Solutions 521-645 and MOOG RK620888 for the same application
Fitment Details
Compatible with 2007-2018 Chevrolet Silverado 1500, front left lower; 2007-2013 Chevrolet Cheyenne, front left lower; 2007-2014 Chevrolet Suburban 1500, front left lower; 2007-2013 Chevrolet Tahoe, front left lower; 2007-2013 Chevrolet Avalanche, front left lower; 2007-2018 GMC Sierra and Sierra 1500, front left lower; 2007-2016 GMC Yukon and Yukon XL/Yukon XL 1500, front left lower; and 2007-2014 Cadillac Escalade, Escalade ESV, and Escalade EXT, front left lower.
Installation Notes
Verify the vehicle’s steering knuckle material, package, and RPO notes before ordering. Several applications specify cast-iron arms, without aluminum steering knuckles, or police-package restrictions, so matching the notes is essential for correct fitment on Chevrolet Silverado 1500, GMC Sierra 1500, and related models.
Quality Assurance
SKP replacement suspension components are cataloged for direct-fit service applications and are identified by the SK521645 part number for ordering and verification.
This part fits 154 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Chevrolet | Suburban | — | — | Front Left Lower | without Aluminum Steering Knuckles |
| 2017 | Chevrolet | Suburban | — | — | Front Left Lower | without Aluminum Steering Knuckles |
| 2016 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2016 | Chevrolet | Silverado 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; Except RPO Code AVV MID-YEAR MODEL CHANGE; without Aluminum Steering Knuckles; Includes Bushings |
| 2016 | Chevrolet | Suburban | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2016 | Chevrolet | Tahoe | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2016 | GMC | Sierra 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; Except RPO Code AVV MID-YEAR MODEL CHANGE; without Aluminum Steering Knuckles; Includes Bushings |
| 2016 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2016 | GMC | Yukon XL | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2015 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2015 | Chevrolet | Silverado 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2015 | Chevrolet | Tahoe | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2015 | GMC | Sierra 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2015 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2014 | Chevrolet | Silverado 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | Chevrolet | Suburban | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2014 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | GMC | Sierra 1500 | — | 4WD | Front Left Lower | without Off Road Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | GMC | Yukon | — | — | Front Left Lower | without Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2014 | GMC | Yukon XL 1500 | — | — | Front Left Lower | without Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Cadillac | Escalade EXT | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Chevrolet | Avalanche | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2013 | Chevrolet | Silverado 1500 | LT | — | Front Left Lower | — |
| 2013 | Chevrolet | Silverado 1500 | WT | — | Front Left Lower | — |
| 2013 | Chevrolet | Silverado 1500 | LTZ | — | Front Left Lower | — |
| 2013 | Chevrolet | Silverado 1500 | LS | — | Front Left Lower | — |
| 2013 | Chevrolet | Silverado 1500 | XFE | — | Front Left Lower | — |
| 2013 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | GMC | Sierra | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2013 | GMC | Sierra 1500 | SL | — | Front Left Lower | — |
| 2013 | GMC | Sierra 1500 | SLT | — | Front Left Lower | — |
| 2013 | GMC | Sierra 1500 | WT | — | Front Left Lower | — |
| 2013 | GMC | Sierra 1500 | SLE | — | Front Left Lower | — |
| 2013 | GMC | Sierra 1500 | Denali | — | Front Left Lower | — |
| 2013 | GMC | Sierra 1500 | XFE | — | Front Left Lower | — |
| 2013 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2013 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Cadillac | Escalade EXT | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Chevrolet | Avalanche | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2012 | Chevrolet | Silverado 1500 | LT | — | Front Left Lower | — |
| 2012 | Chevrolet | Silverado 1500 | WT | — | Front Left Lower | — |
| 2012 | Chevrolet | Silverado 1500 | LTZ | — | Front Left Lower | — |
| 2012 | Chevrolet | Silverado 1500 | LS | — | Front Left Lower | — |
| 2012 | Chevrolet | Silverado 1500 | Base | — | Front Left Lower | — |
| 2012 | Chevrolet | Silverado 1500 | XFE | — | Front Left Lower | — |
| 2012 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | GMC | Sierra | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2012 | GMC | Sierra 1500 | SL | — | Front Left Lower | — |
| 2012 | GMC | Sierra 1500 | SLT | — | Front Left Lower | — |
| 2012 | GMC | Sierra 1500 | WT | — | Front Left Lower | — |
| 2012 | GMC | Sierra 1500 | SLE | — | Front Left Lower | — |
| 2012 | GMC | Sierra 1500 | Denali | — | Front Left Lower | — |
| 2012 | GMC | Sierra 1500 | XFE | — | Front Left Lower | — |
| 2012 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2012 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Cadillac | Escalade EXT | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Chevrolet | Avalanche | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2011 | Chevrolet | Silverado 1500 | LT | — | Front Left Lower | — |
| 2011 | Chevrolet | Silverado 1500 | WT | — | Front Left Lower | — |
| 2011 | Chevrolet | Silverado 1500 | LTZ | — | Front Left Lower | — |
| 2011 | Chevrolet | Silverado 1500 | LS | — | Front Left Lower | — |
| 2011 | Chevrolet | Silverado 1500 | Base | — | Front Left Lower | — |
| 2011 | Chevrolet | Silverado 1500 | XFE | — | Front Left Lower | — |
| 2011 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | GMC | Sierra | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2011 | GMC | Sierra 1500 | SL | — | Front Left Lower | — |
| 2011 | GMC | Sierra 1500 | SLT | — | Front Left Lower | — |
| 2011 | GMC | Sierra 1500 | WT | — | Front Left Lower | — |
| 2011 | GMC | Sierra 1500 | SLE | — | Front Left Lower | — |
| 2011 | GMC | Sierra 1500 | Denali | — | Front Left Lower | — |
| 2011 | GMC | Sierra 1500 | XFE | — | Front Left Lower | — |
| 2011 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2011 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Cadillac | Escalade EXT | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Chevrolet | Avalanche | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2010 | Chevrolet | Silverado 1500 | LT | — | Front Left Lower | — |
| 2010 | Chevrolet | Silverado 1500 | WT | — | Front Left Lower | — |
| 2010 | Chevrolet | Silverado 1500 | LTZ | — | Front Left Lower | — |
| 2010 | Chevrolet | Silverado 1500 | LS | — | Front Left Lower | — |
| 2010 | Chevrolet | Silverado 1500 | Base | — | Front Left Lower | — |
| 2010 | Chevrolet | Silverado 1500 | XFE | — | Front Left Lower | — |
| 2010 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | GMC | Sierra | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2010 | GMC | Sierra 1500 | SL | — | Front Left Lower | — |
| 2010 | GMC | Sierra 1500 | SLT | — | Front Left Lower | — |
| 2010 | GMC | Sierra 1500 | WT | — | Front Left Lower | — |
| 2010 | GMC | Sierra 1500 | SLE | — | Front Left Lower | — |
| 2010 | GMC | Sierra 1500 | Denali | — | Front Left Lower | — |
| 2010 | GMC | Sierra 1500 | XFE | — | Front Left Lower | — |
| 2010 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2010 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Cadillac | Escalade | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Cadillac | Escalade ESV | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Cadillac | Escalade EXT | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Chevrolet | Avalanche | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Chevrolet | Cheyenne | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2009 | Chevrolet | Silverado 1500 | LT | — | Front Left Lower | — |
| 2009 | Chevrolet | Silverado 1500 | WT | — | Front Left Lower | — |
| 2009 | Chevrolet | Silverado 1500 | LTZ | — | Front Left Lower | — |
| 2009 | Chevrolet | Silverado 1500 | LS | — | Front Left Lower | — |
| 2009 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | GMC | Sierra | — | — | Front Left Lower | w/ Cast Iron Arms |
| 2009 | GMC | Sierra 1500 | SL | — | Front Left Lower | — |
| 2009 | GMC | Sierra 1500 | SLT | — | Front Left Lower | — |
| 2009 | GMC | Sierra 1500 | WT | — | Front Left Lower | — |
| 2009 | GMC | Sierra 1500 | SLE | — | Front Left Lower | — |
| 2009 | GMC | Sierra 1500 | Denali | — | Front Left Lower | — |
| 2009 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2009 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Cast Iron Arm; without Aluminum Steering Knuckles; Includes Bushings |
| 2008 | Cadillac | Escalade | — | — | Front Left Lower | Includes Bushings |
| 2008 | Cadillac | Escalade ESV | — | — | Front Left Lower | Includes Bushings |
| 2008 | Cadillac | Escalade EXT | — | — | Front Left Lower | Includes Bushings |
| 2008 | Chevrolet | Avalanche | — | — | Front Left Lower | Includes Bushings |
| 2008 | Chevrolet | Cheyenne | — | — | Front Left Lower | — |
| 2008 | Chevrolet | Silverado 1500 | — | — | Front Left Lower | — |
| 2008 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Includes Bushings |
| 2008 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; Includes Bushings |
| 2008 | GMC | Sierra | — | — | Front Left Lower | — |
| 2008 | GMC | Sierra 1500 | — | — | Front Left Lower | — |
| 2008 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Includes Bushings |
| 2008 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Includes Bushings |
| 2007 | Cadillac | Escalade | — | — | Front Left Lower | Includes Bushings |
| 2007 | Cadillac | Escalade ESV | — | — | Front Left Lower | Includes Bushings |
| 2007 | Cadillac | Escalade EXT | — | — | Front Left Lower | Includes Bushings |
| 2007 | Chevrolet | Avalanche | — | — | Front Left Lower | Includes Bushings |
| 2007 | Chevrolet | Cheyenne | — | — | Front Left Lower | — |
| 2007 | Chevrolet | Silverado 1500 | — | — | Front Left Lower | — |
| 2007 | Chevrolet | Suburban 1500 | — | — | Front Left Lower | Includes Bushings |
| 2007 | Chevrolet | Tahoe | — | — | Front Left Lower | Cast Iron Arm; Includes Bushings |
| 2007 | GMC | Sierra | — | — | Front Left Lower | — |
| 2007 | GMC | Sierra 1500 | — | — | Front Left Lower | — |
| 2007 | GMC | Yukon | — | — | Front Left Lower | with Police Package; Includes Bushings |
| 2007 | GMC | Yukon XL 1500 | — | — | Front Left Lower | with Police Package; Includes Bushings |
| No rows match your filter. | ||||||
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 521-645MOOG Chassis Products — RK620888521645208691992578811225997509