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Race -Tested Engineering from California
Rated 4.9 ★ by Real Riders
Rated 5/5 based on 1000+ reviews
Fox Shock Rebuild Seal Kits
Buy now, pay later with
Select your Style
- Fox 2.0 x 5/8" Shaft Factory & Performance Series Buna Seal Kit
- Fox 2.0 x 7/8" Shaft Factory Series Viton Seal Kit
- Fox 2.0 x 1.25" Shaft Bump Stop/Air Shock Buna Seal Kit
- Fox 2.5/3.0 x 7/8" Shaft Factory Series Viton Seal Kit
- Fox 2.5 x 7/8" Shaft UTV Podium Viton Seal Kit
- Fox 2.5 x 1.625" Shaft Bump Stop/Air Shock Buna Seal Kit
- Fox 3.0 x 7/8" Shaft Internal Bypass (IBP) Factory Series Viton Seal Kit
- Fox 3.0 x 1.00" Shaft (3.0 Resi) Factory Series Viton Seal Kit
- Fox 3.0 x 7/8" Shaft UTV Podium Viton Seal Kit
- Fox 3.0 x 1.00" Shaft UTV Podium Viton Seal Kit
- Fox 3.5 x 1.00" Shaft (3.0 Resi) Factory Series Viton Seal Kit (Incl. Std. Main Piston Wearband)
- Fox 4.0 x 1.125" Shaft (3.5 Resi) Factory Series Viton Seal Kit (Incl. Std. Main Piston Wearband)
- Fox 4.4 x 1.25" Shaft (3.5 Resi) Factory Series Viton Seal Kit (Incl. Std. Main Piston Wearband)
Keep your Fox shocks performing like new with our comprehensive seal rebuild kit, designed for Fox 2.0 - 4.4" Shocks. This high-quality rebuild kit helps freshen up your shocks and ensures optimal performance, whether you're tackling rough trails or hitting the race track.
Kit Includes:
- O-rings
- Shaft Seals
- IFP Seals
- IFP Wear Band
- Standard Main Piston Wear Bands (3.5, 4.0 & 4.4 Only)
Please Note: The main piston wear band is not included in the 2.0 - 3.0 kits. Viton seals are ideal for racing applications for enhanced durability and heat resistance.
Seal kits are sold individually.
The photo may not reflect the exact product.
Need additional Fox shock replacement parts?
Give us a call at 619-988-1734 we off the full line of Fox replacement parts for Motorsports, Powersports (UTV) and Truck shocks.
Why this setup works
We build it. We ride it. This package is tuned for grip, control, and comfort—validated by race data and real-world miles.
Vehicle compatibility
See fitment tab or ask our team for exact fit.
What’s in the box
Dual-rate coils, hardware, and setup guidance. Shock services include fresh oil, seals, and damping calibrated for your terrain.
FAQ
How fast is turnaround? Typical rebuilds ship in 3–5 business days after arrival.
Can I daily-drive this setup? Yes—race roots with real-world manners.
Do you tune for dunes vs desert vs trails? We spec springs and damping for your terrain.
What this product helps you do
utv suspension, sxs suspension, race-proven suspension, sdg shocks, dual-rate spring kit, shock rebuild, shock revalve, utv shock tuning
Safe & Secure checout
Order today
Receive it on 03/11/2026
- 300 race wins
- 74 championships
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Questions?
Answers here.
What makes SDG spring kits different from stock springs?
SDG spring kits use race-proven dual-rate designs tuned for your exact model. They restore ride height, improve comfort, and eliminate bottom-outs — the same setups used by championship race teams.
Do bundles qualify for financing?
Yes. SDG offers “Ride Now, Pay Later” financing for all complete systems.
What’s included in the SDG suspension bundle?
Each bundle includes SDG spring kits, reservoirs, clevis & shaft upgrades, and sway bar or limit strap options — all tuned to work as one system.
Do SDG spring kits fit both 2-seat and 4-seat models?
Yes. Each kit is vehicle-specific and includes the correct rates and preload setup for 2-seat or 4-seat configurations. Just select your model at checkout.
Do I need to revalve my shocks after installing a spring kit?
Not usually. Our spring kits are tuned to work with stock valving, but a revalve can enhance performance if you’ve added major weight like cages or accessories.
What does the SDG reservoir do?
The SDG reservoir increases nitrogen volume and reduces internal pressure buildup. It prevents heat fade, oil foaming, and premature seal wear — keeping shocks consistent in long desert or dune runs.
What do the SDG clevis and shaft upgrades improve?
They increase durability and smooth travel by using precision-machined materials that resist deflection. It’s a race-grade upgrade for consistent handling.
Do spring hats help ride quality?
Absolutely. By maintaining consistent geometry, they prevent unwanted spring movement and reduce top-out harshness.
Why upgrade the shaft if my stock one isn’t broken?
Stock shafts can flex or score over time. Our race-grade shafts maintain tight tolerances and reduce internal wear — keeping damping consistent.
Rated 4.9/5 on 
google
Jason was nothing less than awesome in helping me with my shock problem. From taking my phone call directly, listening to my situation, and ultimately hooking me up with the repair I needed he went above and beyond what you would expect. I can honestly say that after my experience at SDG I won't trust anyone else with servicing my shocks.
Jaimes McKinney 
Verified Customer
Verified Customer
These guys are awesome. Tod is such a stand-up guy. Thanks man.
@VFATAL Verified Customer
Amazing customer service! Highly recommended them for UTV shocks
@VFATAL Verified Customer
“Professional service, Very informative and quick turn around. I test drove my RZR PRO R and it rides awesome 👌 Thanks SDG”
@VFATAL Verified Customer
Best shock tuning in the industry!
@VFATAL Verified Customer
Mucha rapidez en su servicio exelente trato
@VFATAL Verified Customer
