Shocks for semi trucks play a crucial role in ride quality, tire wear, and overall vehicle stability on highways and job sites. This guide highlights five high‑performing shock absorbers designed to replace OEM parts across popular suspension systems. Each product is evaluated based on fitment versatility, extended and collapsed lengths, bore size, and notable compatibility. The selections below are suitable for heavy‑duty fleet use and varying trailer and tractor configurations, helping fleet managers and owner‑operators select reliable replacements.
| Product | Brand | Primary Fitment | Key Specs |
|---|---|---|---|
| 4 PCS TORQUE Heavy Duty Shock Absorber TR85000 | Torque | CUSH, Hendrickson, Ridewell, Trailmobile, Wabash, Meritor, etc. | Extended 17.22″, Collapsed 11.46″, Stroke 5.76″ |
| 4 PCS TORQUE Heavy Duty Shock Absorber TR85066 | Torque | Mack Anthem, Volvo VN/VNL/VNR/VNX, etc. | Extended 24.63″, Collapsed 15.22″, Stroke 9.41″ |
| Mytee Products 4 Pack Shock Absorber for Semi Trucks | Mytee Products | Peterbilt 33/335/… Series, OEM Replacements | OEM replacements range across several Peterbilt models |
| Gabriel 85000 Fleetline Heavy Duty Rear Shocks | Gabriel | Hendrickson/Intraax/Vantraax trailers | Stroke 5.78″, Extended 17.28″, Collapsed 11.5″ |
| Mytee Products 4 Pack Heavy Duty Shock Absorber for International | Mytee Products | Compatible with International 4700 and others | Extended 22.75″, Collapsed 14.5″, Bore 1-5/8″ |
The following picks represent a balance of compatibility breadth, payload support, and replacement convenience across common semi truck suspensions used in North American fleets.
4 PCS TORQUE Heavy Duty Shock Absorber TR85000
These TORQUE TR85000 shocks are designed for multi‑brand trailers and axles, with compatibility across CUSH, Hendrickson, Ridewell, SAF Holland, Trailmobile, Wabash, and Meritor systems. Specification highlights include an extended length of 17.22 inches and a collapsed length of 11.46 inches, stroke of 5.76 inches, and a bore of 1-5/8 inch. The unit features a dust tube, a recoil cutoff for stability, and a moderate weight of about 6 pounds per absorber. Replacement references include Gabriel 85000 and Monroe 65416/65419, supporting a broad interchange in many fleet applications.
Fitment notes emphasize compatibility with Freightliner and Hendrickson families as well as Meritor and Trailmobile components. The practical takeaway is a robust, versatile option suitable for a wide range of heavy‑duty semi trailers, enabling consistent damping performance across varied road conditions.
4 PCS TORQUE Heavy Duty Shock Absorber TR85066
The TR85066 model targets heavier load scenarios typical of Mack Anthem and Volvo VN/VNL/VNR/VNX fleets. Key specifications include an extended length of 24.63 inches, collapsed length of 15.22 inches, and a stroke of 9.41 inches; bore size remains 1-5/8 inch. Rebound is rated at 812 pounds, and compression at 322 pounds, with an approximate weight of 8.5 pounds per shock. This unit is designed to replace Gabriel 85066 and is compatible with Monroe and Meritor assemblies in equivalent configurations.
This option is well suited for highway runs with frequent payload changes or rough road surfaces, offering enhanced rebound control and damping for larger tractors paired with robust suspensions such as Hendrickson and Meritor systems.
Mytee Products 4 Pack Heavy Duty Shock Absorber for Semi Trucks
This Mytee Pack targets Peterbilt models and a broad replacement list, including OEM numbers like 8569 and 8600 series. The kit emphasizes compatibility with various Peterbilt 33/335/337/357/362/365/367/378/379/382/384 families and other OEM equivalents. The features focus on versatile replacement for OEM shock absorbers, ensuring compatibility across multiple Peterbilt configurations and related models. This kit is useful for fleets operating mixed highway applications where consistent parts interchangeability reduces downtime.
Fleet maintenance teams should consider this kit when stocking common Peterbilt replacements or when seeking a cost‑effective multi‑unit solution for mixed‑model garages.
Gabriel 85000 Fleetline Heavy Duty Rear Shocks
The Gabriel 85000 Fleetline units are designed for Hendrickson Intraax and Vantraax trailer air suspensions, offering a wide array of interchange references including A‑20002, B‑23013, B‑23566, B‑24088, and other Meritor and Wabash equivalents. Notable specs include a stroke of 5.78 inches, extended length of 17.28 inches, and a collapsed length of 11.5 inches, with a 1-5/8 inch bore. This model supports various tags and cross‐references to maintain compatibility in mixed fleets.
Consider Gabriel 85000 when you operate with diverse trailer lines or when OEM part availability is constrained. The broad compatibility helps reduce stocking complexity across multiple trailer brands.
Mytee Products International Pack: 4 Shock Absorbers for International
This Mytee set targets International 4700 and similar platforms, with OEM replacements including 85724, 680339, and 16-18708-000. The kit provides a practical option for fleets with mixed International models or fleets that frequently replace old shocks with standard aftermarket parts. Extended length is around 22-3/4 inches with a 14-1/2 inch collapsed length, bore of 1-5/8 inch, and a stroke of 8-1/4 inches. It emphasizes OEM‑matching design to ensure straightforward installation and reliable performance.
For operators who prioritize straightforward interchangeability and consistent part availability for International trucks and similar lines, this kit offers a convenient replacement path that minimizes compatibility concerns.
Buying Guide
- Fitment breadth: Choose shocks that list direct compatibility with your trailer or tractor suspension brands (Hendrickson, Ridewell, SAF Holland, Trailmobile, Wabash, Meritor, etc.).
- Length and stroke: Extended and collapsed lengths determine clearance and ride height; ensure the chosen model fits your chassis envelope and desired sag/ride height.
- Bore size and construction: A 1-5/8 inch bore is common for heavy‑duty shocks; sturdy dust tube construction improves longevity in harsh environments.
- Weight considerations: Heavier models may dampen more aggressively but could impact installation and mounting hardware requirements.
- Interchangeability: Some replacements offer broad cross‑compatibility with multiple OEM part numbers. This can simplify stocking and reduce downtime during service.
- Maintenance and warranty: Look for products with supplier warranties and documented maintenance guidance to minimize lifecycle costs.
- Installation notes: Verify torque specs and mounting orientations in the vehicle’s service manual; improper installation can impact performance and safety.
- Fleet considerations: For mixed fleets, prioritize kits that cover several models to streamline inventory and reduce spare parts variety.
When selecting shocks for a semi truck, balance immediate fit with long‑term maintenance needs. Evaluating exchangeability with existing suspension components and the typical road conditions your fleet faces will help determine the best overall value and reliability.