Click to zoom in
KYB 554348 is a rear Gas-A-Just monotube gas shock absorber for the vehicle applications listed below. Its separate hydraulic and high-pressure nitrogen chambers provide consistent damping response without the aeration associated with conventional twin-tube designs.
Key Features
- Monotube construction separates the hydraulic working area from the high-pressure nitrogen chamber.
- Floating-piston design responds to changing road and load conditions without manual adjustment.
- Application-specific damping is engineered for the listed vehicle and axle position.
- Non-adjustable, direct-replacement design uses the manufacturer-specified mounting configuration.
- Sold individually; replace dampers in axle pairs unless the vehicle service procedure states otherwise.
Fitment
| Years | Make | Model | Notes |
|---|---|---|---|
| 2003-2011 | Chevrolet | Express 2500 | Rear |
| 2006-2011 | Chevrolet | Express 3500 | Rear |
Verified application summary: 2003-2011 Chevrolet Express 2500 (Rear); 2006-2011 Chevrolet Express 3500 (Rear). Confirm the exact suspension configuration in the KYB catalog before ordering; manufacturer application data takes priority over visual similarity.
Specifications
| Brand | KYB |
|---|---|
| Manufacturer part number | 554348 |
| Product line | Gas-A-Just |
| Position | Rear |
| Design | High-pressure monotube gas shock |
| Adjustability | Non-adjustable |
| Selling quantity | One |
What's Included
One KYB 554348 Gas-A-Just suspension unit in the manufacturer-specified configuration. Reuse or replace mounting hardware, bushings, boots, and companion components according to the vehicle service procedure.
Installation Notes
Suspension work affects vehicle control and safety. Support the vehicle correctly, compare mount styles and lengths before installation, torque all fasteners to the vehicle specification, and obtain an alignment whenever the service procedure requires it.
Frequently Asked Questions
Is this sold as a pair?
No. The listing quantity is one suspension unit.
Is the damping adjustable?
No. KYB supplies application-specific fixed damping for this part.
Can I select it by appearance?
No. Match KYB part number 554348, the vehicle, axle position, drivetrain, suspension, and all notes.
Related Products
KYB
Shop KYB shocks, struts, mounts, protective components, steering stabilizers, and matched suspension packages by exact manufacturer part number and verified vehicle application. KYB Product Families The collection includes Excel-G, Gas-a-Just, MonoMax, AGX, Strut-Plus, Truck-Plus, K2.0, and application-specific KYB suspension service components. Choosing the Correct KYB Suspension Part Match the exact KYB manufacturer part number Confirm year, make, model, factory suspension, and ride height Verify front or rear position plus left or right side when specified Check whether springs, mounts, bearings, boots, bump stops, or hardware are included Review every current KYB application note before ordering Plan for professional installation and alignment when suspension geometry is affected Related Suspension Collections Shocks and Struts Coilovers Suspension Packages Suspension Parts Frequently Asked Questions Should KYB shocks or struts be replaced in pairs?Replacing both dampers on...
View KYB Products
Shocks and Struts
Shocks and struts for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop front and rear shocks, loaded strut assemblies, monotube shocks, twin-tube shocks, reservoir shocks, and steering dampers for daily drivers, lifted trucks, tow rigs, off-road builds, and muscle cars on Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and EcoBoost platforms. Every shock and strut is filterable by year, make, model, trim, drivetrain, front or rear position, and ride height so the correct part ships the first time. Black Ops Auto Works carries 5,188 shock and strut SKUs across construction type, application, and vehicle use. What This Category Covers Shocks and struts damp spring oscillation so the tire stays planted on the road and are the most common suspension replacement job on any vehicle. A shock absorber is a standalone damping unit that bolts between the chassis and axle or lower control arm. A strut is a structural suspension member that combines damping with the sp...
View Shocks and Struts Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products