

Vertex 2.5 Reservoir Coilovers from Rough Country, part 689031, for 2007-2018 Chevrolet Silverado 1500 & GMC Sierra 1500. Sized for vehicles running 3.5" of lift. Variant: Front. Estimated install time is 2-3 hours.
Unrivaled Performance: Unmatched Ride Quality. Experience the pinnacle of off-road control with Rough Country's 2.5 Vertex Reservoir Coilovers - precision-engineered to dominate any terrain while delivering a smooth, customizable ride.
Features
- Complete Front Coilover Set: Includes both driver and passenger side for balanced performance and precise handling.
- Monotube Design: Delivers consistent, high-performance shock absorption in any terrain.
- Nitrogen-Charged System: Ensures reduced shock fade and dependable performance under heavy loads.
- Remote Reservoir with Steel-Braided Line: Improves heat dissipation and enhances durability during intense use.
- Massive 2.5-Inch Piston: Provides superior dampening capability for extreme off-road challenges.
- 18mm Chrome-Hardened Piston Rod: Built tough to handle the harshest conditions with maximum reliability.
- Application-Specific Tuning: Engineered for the perfect balance of performance and comfort for your vehicle.
- 3-Stage Seal System: Ensures long-lasting protection against dirt, debris, and fluid leakage.
- Heat-Treated Alloy Bearing: Increases strength and durability for enhanced shock longevity.
- Honed Steel Body: Ensures smooth, consistent operation under pressure.
What's in the box
- (1) Vertex Driver Side Coilover
- (1) Vertex Passenger Side Coilover
- (2) Reservoir Mounting Plates
- (4) Stainless Steel Clamps
Notes
- Designed exclusively for vehicles equipped with a 3.5" lift for optimal fit and performance.
- Not compatible for installation with a strut spacer, ensuring proper fit and functionality.
- Adjustment wrench sold separately. SKU: 10402.
Specifications
| Part number | 689031 |
|---|---|
| Brand | Rough Country |
| Type | Coilover Kits |
| Top Mount | Stud |
| Bottom Mount | Eye |
| Extended Length | 20.79" |
| Collapsed Length | 15.79" |
| Adjustable | No |
| Mounting Location | Front |
| Estimated install time | 2-3 hours |
| Shipping weight | 74.8 lb |
| Instruction sheet | 921689001: Vertex Installation;921104020: How to adjust |
| Fits | 2007-2018 Chevrolet Silverado 1500 & GMC Sierra 1500 |
| Manufacturer applications | 2019 Chevrolet Silverado 1500 LD (4WD, RWD); 2007-2018 Chevrolet Silverado 1500 (4WD, RWD); 2007-2018 GMC Sierra 1500 (4WD, AWD, RWD); 2007-2013 GMC Sierra 1500 Denali (4WD) |