High Volume Shock Reservoir Caps (FOX Shocks)
MTS-4FRC25L
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Make shock service faster, cleaner, and easier to stay on top of. The MTS Off-Road High Volume Shock Reservoir Caps are built for 2.5" FOX shock reservoirs, giving you easier nitrogen access with a Schrader valve design instead of the stock pellet cap setup.
These caps are a smart upgrade for hard driven UTVs and SxS builds where shock pressure matters. MTS Off-Road notes that shocks can lose around 30 PSI every 6 months, and dropping too low can lead to cavitation, extra heat, premature wear, and reduced handling. These reservoir caps make regular nitrogen checks easier and allow up to 300 PSI, helping aggressive drivers maintain better bottom out resistance and more consistent shock performance.
FEATURES
- High volume reservoir caps for FOX shocks
- Includes 4 reservoir caps
- Made for 2.5" diameter FOX reservoirs
- Easy fill Schrader valve design
- Makes nitrogen checks and service faster than typical pellet caps
- Allows up to 300 PSI of nitrogen pressure
- Helps reduce cavitation risk when proper shock pressure is maintained
- Helps support better heat control, shock consistency, and handling
- Great for aggressive UTV and SxS drivers
- Ideal for dunes, desert riding, whoops, rough trails, and high speed off road use
- Replaces stock reservoir caps for easier service access
- Does not work with Walker Evans reservoirs
VEHICLE FITMENT
Universal fitment for SxS applications using compatible FOX Shocks
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$200.00