Most Gen1 Raptor owners have never checked the nitrogen pressure in their OEM Fox shocks.
In fact, many owners don’t even realize the shocks contain a pressurized nitrogen reservoir.
According to Fox, shock nitrogen pressure should be inspected approximately every 10,000 miles as part of normal maintenance. Unfortunately, the factory charging system used on the 2010-2014 Ford SVT Raptor makes that process difficult for the average owner.
As a result, many Raptors spend years operating with unknown nitrogen pressure.
If you’ve ever wondered how to check the pressure in your Fox shocks, what pressure they should be charged to, or how to replace the factory charging plug with a Schrader valve, you’re in the right place.
Quick Answers
What pressure should Gen1 Raptor Fox shocks be charged to?
Fox recommends 200 PSI nitrogen.
What thread size is the Gen1 Raptor Fox shock fill port?
3/8-24.
Can I replace the factory charging plug with a Schrader valve?
Yes. The Infinity Overland Shock Charging Valve converts the factory charging system to a standard Schrader-style service valve.
Does this fit aftermarket Fox shocks?
No. This valve was specifically designed for OEM 2010-2014 Ford SVT Raptor Fox reservoir shocks.
Why Do Fox Shocks Use Nitrogen?
The OEM Fox shocks used on the 2010-2014 Ford SVT Raptor utilize a pressurized nitrogen reservoir to improve shock performance.
Nitrogen serves several important functions:
- Reduces oil cavitation
- Improves damping consistency
- Helps maintain shock performance under heavy use
- Improves heat management
- Provides more consistent suspension performance
Without proper nitrogen pressure, shock performance can suffer.
Symptoms Of Low Nitrogen Pressure
A loss of nitrogen pressure may contribute to:
- Excessive suspension bottoming
- Reduced damping performance
- Increased shock fade
- Harsh ride quality
- Inconsistent suspension behavior
- Poor off-road performance
Nitrogen pressure is a critical component of how the OEM Fox shocks function.
The Problem With The Factory Charging System
Unlike most serviceable shocks, the OEM Fox shocks found on the Gen1 Raptor do not use a standard Schrader valve.
Instead, they utilize:
- A threaded charging plug
- An internal rubber charging puck
- A specialized charging tool
While this design works, it creates a major serviceability problem.
Checking nitrogen pressure or recharging the shock requires specialized equipment that most owners and many repair shops do not have.
As a result, nitrogen pressure is rarely checked even though Fox recommends periodic inspection.
3/8-24 Thread
This specification is commonly searched as:
- 3/8-24 Schrader Valve
- 3/8-24 Shock Charging Valve
- 3/8-24 Nitrogen Valve
- Fox Shock Schrader Valve
- Fox Reservoir Valve
- Shock Charging Valve
- Raptor Shock Fill Valve
The Infinity Overland Shock Charging Valve was specifically designed around this 3/8-24 thread specification for OEM Fox reservoir shocks.
Recommended Nitrogen Charging Equipment
Once converted to a Schrader-style service valve, checking nitrogen pressure becomes significantly easier.
For the most accurate results, a no-loss nitrogen chuck is strongly recommended.
Recommended equipment includes:
Fox 802-02-002-A Nitrogen Filler Gauge
Features:
- Schrader-style connection
- 0-600 PSI gauge
- Designed specifically for Fox shock service
- Allows accurate pressure checks and charging
MICECNC Nitrogen Shock Charging Tool
Features:
- Schrader-style connection
- Compatible with standard nitrogen regulators
- More affordable alternative to the Fox charging tool
- Suitable for routine maintenance and pressure checks
Regardless of which tool is used, a no-loss chuck is highly recommended when working with shock pressures around 200 PSI.
The Solution
The Infinity Overland Gen1 Raptor Shock Charging Valve replaces the factory charging plug and converts the reservoir to a standard Schrader-style service valve.
This allows the shock to be serviced using commonly available nitrogen charging equipment and no-loss chucks.
Benefits include:
- Easier nitrogen pressure checks
- Easier shock servicing
- Standard Schrader valve compatibility
- Precision machined brass valve body with durable protective coating
- Protective valve cap included
- Genuine Loctite 243 included
- Verified fitment on OEM Gen1 Raptor Fox reservoirs
Installation
Tools Required
- Wrench
- Dry nitrogen source
- Nitrogen regulator
- No-loss nitrogen chuck
- Shock charging gauge
Installation Procedure
- Safely depressurize the shock reservoir.
- Remove the factory charging plug.
- Clean the reservoir threads thoroughly.
- Apply a small amount of shock oil to the O-Ring
- Apply the included Loctite 243 threadlocker.
- Install the Infinity Overland Shock Charging Valve, do not overtighten
- Recharge the reservoir using dry nitrogen.
- Verify final pressure.
- Install the protective cap.
Recommended Nitrogen Pressure
The OEM Fox shocks used on the 2010-2014 Ford SVT Raptor typically operate at approximately:
200 PSI
Always verify the correct pressure specification for your particular shock application.
Common Questions About Gen1 Raptor Shock Pressure
Owners frequently search for:
- How do I check Gen1 Raptor shock pressure?
- What is the nitrogen pressure in Gen1 Raptor Fox shocks?
- How do I refill nitrogen in Fox shocks?
- What thread size is the Gen1 Raptor shock fill port?
- Can I replace the Fox charging plug with a Schrader valve?
- What is a 3/8-24 Schrader valve used for?
- How do I charge Fox reservoir shocks?
- How often should Fox shock pressure be checked?
The Infinity Overland Shock Charging Valve was developed specifically to address these common maintenance and service concerns.
Frequently Asked Questions
Can I use compressed air?
Yes, but only as a temporary solution.
Compressed air contains moisture and oxygen, which can contaminate shock oil and cause pressure fluctuations as temperatures change.
Dry nitrogen is strongly recommended for long-term performance and reliability.
Do I need a special fill tool?
A no-loss nitrogen chuck is highly recommended.
The OEM Fox shocks operate at approximately 200 PSI. Even a small amount of pressure loss during connection or removal can affect shock performance.
A quality no-loss chuck allows accurate pressure checks and charging.
Why would I replace the factory charging system?
The factory Fox charging system requires a specialized charging tool that most owners do not have access to.
Converting to a standard Schrader-style valve makes future maintenance significantly easier while eliminating the need for specialized charging equipment.
Can I replace only one valve?
Yes.
The Infinity Overland Shock Charging Valve is available individually, in pairs, or as a complete set of four.
Many owners replace all four valves during a shock rebuild, while others replace only the valve associated with the shock being serviced.
Will this fit aftermarket Fox shocks?
No.
This valve was specifically designed for OEM Fox reservoir shocks used on the 2010-2014 Ford SVT Raptor, utilizing a 3/8-24 fill port.
Fitment on aftermarket Fox shocks, bypass shocks, coilovers, or other applications is not guaranteed.
Recommended Product
Infinity Overland Gen1 Raptor Shock Charging Valve
✔ Direct replacement for OEM Fox charging plug system
✔ 3/8-24 thread specification
✔ Standard Schrader valve compatibility
✔ Precision machined brass valve body with durable protective coating
✔ Includes genuine Loctite 243 threadlocker
✔ Verified fitment on OEM Gen1 Raptor Fox reservoir shocks
✔ Available individually, in pairs, or as a complete set of four
Make future nitrogen pressure checks and shock servicing easier with the Infinity Overland Gen1 Raptor Shock Charging Valve.
Ready To Service Your Fox Shocks?
The Infinity Overland Shock Charging Valve converts the factory charging plug system to a standard Schrader valve for easier pressure checks, nitrogen charging, and future maintenance.
Available As:
✔ Single Valve
✔ Pair (2 Valves)
✔ Complete Set (4 Valves)
✔ Includes Genuine Loctite 243
