Add rear-wheel control without sacrificing heat capacity on long, rough sections
King Shocks 25001-416 is a vehicle-tuned pair of 2.5-inch rear shocks with remote reservoirs for current Land Cruiser 250, GX550, and 4Runner applications. The larger bodies and external reservoirs increase fluid capacity and heat dissipation while King-specific damping supports both daily driving and sustained off-road use.
Key Features
- Exact 25001-416 non-adjustable rear shock configuration
- Matched rear pair with remote reservoirs
- 2.5-inch shock bodies for increased fluid capacity
- More than 20 percent increase in wheel travel published by King
- Vehicle-specific damping developed through dynamometer and real-world testing
- High-strength stainless steel mounting-pin end-cap design
- Fully rebuildable, serviceable, and tunable
- Direct bolt-on installation with vehicle-specific reservoir mounts
Fitment
| Years |
Make |
Model |
Position |
Verified Notes and Exclusions |
| 2024-2026 |
Toyota |
Land Cruiser 250 |
Rear |
Use complete 25001-416 non-adjustable pair |
| 2024-2026 |
Lexus |
GX550 |
Rear |
Use complete non-adjustable pair |
| 2025-2026 |
Toyota |
4Runner |
Rear |
Use complete non-adjustable pair; optional adjuster version is a different MPN |
Specifications
| Detail |
Value |
| Manufacturer Part Number |
25001-416 |
| Product Type |
Rear remote-reservoir shock pair |
| Series |
OEM Performance |
| Body Diameter |
2.5 inches |
| Position |
Rear |
| Quantity |
Two shocks |
| Reservoir Type |
External remote reservoir |
| Compression Adjuster |
No |
| Serviceability |
Rebuildable, serviceable, and tunable |
| Installation |
Vehicle-specific bolt-on |
What's Included
- Two King Shocks 25001-416 rear remote-reservoir shocks
- Left and right reservoir brackets
- Two reservoir-bracket backing plates
- One brake-line bracket
- King hardware kit and installation instructions
About King Shocks
King Shocks engineers rebuildable off-road dampers using large fluid volumes, precision-machined components, and application-specific testing. OEM Performance kits are tuned for the vehicle platform while retaining serviceability for future maintenance or tuning.
Related Parts
- King front coilovers specified for the same vehicle and installed ride height
- King sway bar links verified for the same platform
- King service oil, seals, and nitrogen-service parts matched to the exact shock configuration
FAQ
What is the 25001-416?It is a matched pair of 2.5-inch rear remote-reservoir shocks for the verified Toyota and Lexus applications below.
Which vehicles are supported?King lists 2024-2026 Toyota Land Cruiser 250 and Lexus GX550, plus 2025-2026 Toyota 4Runner.
How many shocks are included?The package contains two rear shocks, left and right reservoir mounts with backing plates, a brake-line bracket, and the specified hardware kit.
Are compression adjusters included?No. The exact non-adjustable configuration does not include the optional wide-range compression adjusters.
What size are the shock bodies?Each shock uses a 2.5-inch body to increase fluid capacity and control operating temperature.
Are the shocks rebuildable?Yes. King describes the shocks as fully rebuildable, serviceable, and tunable.
Is installation bolt-on?Yes. King describes the kit as a direct bolt-on rear shock package and supplies vehicle-specific reservoir mounting parts.
What suspension position is covered?This package is for the rear suspension only and is sold as a pair.
Installation Instructions
- Confirm the vehicle year and model, then compare the sealed kit contents with the King parts list before disassembly.
- Park on a level surface, chock the wheels, and support the rear chassis and axle with appropriately rated equipment.
- Remove the original rear shocks while controlling axle movement and protecting brake hoses, wiring, and suspension links.
- Install the supplied left and right reservoir mounts, backing plates, and brake-line bracket in the locations shown by King.
- Install each shock on its corresponding side without twisting or sharply bending the reservoir hose.
- Torque all hardware to the King and vehicle service specifications, then route the reservoirs and hoses clear of heat, tires, and moving components.
- Cycle the rear suspension through compression and droop, road-test at low speed, and recheck every mount and fastener after the initial driving interval.
California Proposition 65 Warning: Motor vehicle parts can expose you to chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling and follow applicable safety procedures.