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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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King Shocks
King Shocks 2011-2025 Chevrolet Silverado/GMC Sierra 2500/3500 HD Rear 2.5 Piggyback Res Shocks w/ Adj (Pair) 25001-303A
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits 2011-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD.
King Shocks OEM Performance Series rear shocks provide professional-grade damping for heavy-duty trucks. These 2.5-inch diameter shocks utilize a piggyback reservoir design to increase oil volume, ensuring superior heat dissipation and consistent performance while towing or navigating rough terrain. The integrated compression adjusters allow for immediate fine-tuning of the damping curve to accommodate varying bed loads or trailer weights without tools.
- Large 2.5-inch shock bodies for increased fluid capacity and thermal stability
- Piggyback reservoirs provide a compact, bolt-on cooling solution without external hoses
- Built-in compression adjustment knobs for precise damping control
- Vehicle-specific valving tuned for Chevrolet and GMC HD chassis dynamics
- Direct bolt-on installation replaces factory rear shocks
- Set includes a pair of shocks
- Manufacturer Part Number: 25001-303A
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2015-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2015-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2015-2021 | GMC | Sierra 2500 HD | Base |
| 2011-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2011-2025 | GMC | Sierra 2500 HD | SLE |
| 2011-2025 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2015-2021 | GMC | Sierra 3500 HD | Base |
| 2011-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2011-2025 | GMC | Sierra 3500 HD | SLE |
| 2011-2025 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
Choose your Location
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
King Shocks 2011-2025 Chevrolet Silverado/GMC Sierra 2500/3500 HD Rear 2.5 Piggyback Res Shocks w/ Adj (Pair) 25001-303A
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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Fits 2011-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD.
King Shocks OEM Performance Series rear shocks provide professional-grade damping for heavy-duty trucks. These 2.5-inch diameter shocks utilize a piggyback reservoir design to increase oil volume, ensuring superior heat dissipation and consistent performance while towing or navigating rough terrain. The integrated compression adjusters allow for immediate fine-tuning of the damping curve to accommodate varying bed loads or trailer weights without tools.
- Large 2.5-inch shock bodies for increased fluid capacity and thermal stability
- Piggyback reservoirs provide a compact, bolt-on cooling solution without external hoses
- Built-in compression adjustment knobs for precise damping control
- Vehicle-specific valving tuned for Chevrolet and GMC HD chassis dynamics
- Direct bolt-on installation replaces factory rear shocks
- Set includes a pair of shocks
- Manufacturer Part Number: 25001-303A
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2015-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2015-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2015-2021 | GMC | Sierra 2500 HD | Base |
| 2011-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2011-2025 | GMC | Sierra 2500 HD | SLE |
| 2011-2025 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2015-2021 | GMC | Sierra 3500 HD | Base |
| 2011-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2011-2025 | GMC | Sierra 3500 HD | SLE |
| 2011-2025 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
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