FOX Performance Elite Series Adjustable Front Reservoir Shock for 2024–2026 INEOS Grenadier and 2025–2026 Grenadier Quartermaster – Part Number 883-26-166

Developed from our off-road race shocks, FOX Performance Elite Series combines race-proven technology with new, cutting-edge features to provide all the adjustability and capacity needed to take on serious off-roading in your Jeep. Application specific valving to maximize performance. Expand your vehicle’s capability with an oversized performance shock that increases strength, provides control and extended wheel travel specifically engineered for your vehicle. The larger aluminum body dissipates heat more efficiently and the increased internal oil volume allows for more control through FOX’s race-developed high-flow pistons._x000D_ _x000D_ Conquer more terrain knowing with our 7/8” hard chromed shock shaft and a redundant seal pack, designed for harsh environments and extreme conditions. Fully serviceable for a lifetime of use._x000D_ _x000D_ Confidence comes with control. FOX Performance Elite shocks offer the widest range of adjustability we offer. Easily adjust your shock for terrain, load and speed to stay in control and confident no matter what path you take.

• Performance Tuned For Vehicle Specific Application
• Aluminum Body Dissipates Heat Faster Than Steel
• Black Anodized CNC Machined Aluminum Components
• External Reservoir System Dissipates Heat Fast

The FOX Performance Elite Series 2.5 Reservoir Shock is engineered for the front suspension of the 2024–2026 INEOS Grenadier and 2025–2026 INEOS Grenadier Quartermaster. Developed from FOX off-road race shocks, this adjustable performance shock combines vehicle-specific valving, increased oil capacity, and race-developed high-flow piston technology to improve control, strength, and suspension performance during demanding off-road use.

The oversized aluminum body dissipates heat more efficiently than steel, helping maintain consistent damping performance during extended driving and difficult terrain. An external reservoir further increases heat management, while black anodized, CNC-machined aluminum components provide durability in harsh environments. The FOX 883-26-166 also features a 7/8-inch hard-chromed shock shaft and redundant seal pack designed to withstand extreme operating conditions.

FOX Performance Elite shocks provide a broad range of adjustment for tuning suspension response to terrain, vehicle load, and driving speed. The shock is fully serviceable, supporting long-term maintenance and continued use. Application-specific valving helps maximize performance for the INEOS Grenadier platform while delivering improved wheel control and expanded off-road capability.

Key Product Specifications and Technical Data

• Brand: FOX
• Series: Performance Elite
• Part Number: 883-26-166
• Position: Front
• Shock Type: Adjustable reservoir shock
• Body Construction: Oversized aluminum body
• Shock Shaft: 7/8-inch hard-chromed shaft
• Serviceability: Fully serviceable design

What's Included

One FOX Performance Elite Series adjustable front reservoir shock. Installation hardware and accessories are included only when supplied by the manufacturer.

Fitment: Fits 2024–2026 INEOS Grenadier and 2025–2026 INEOS Grenadier Quartermaster applications. Verify vehicle configuration and suspension application before installation.

Features:

• Vehicle-Specific Valving: Tuned for the INEOS Grenadier platform to improve damping control and off-road performance.
• Aluminum Shock Body: Dissipates heat faster than steel to help maintain consistent performance under demanding conditions.
• External Reservoir System: Increases cooling capacity and supports reliable damping during extended off-road use.
• Adjustable Performance Design: Provides a wide range of tuning for terrain, vehicle load, and driving speed.

Fitments:
2024 INEOS Grenadier Base
2024 INEOS Grenadier Fieldmaster
2024 INEOS Grenadier Trialmaster
2025 INEOS Grenadier Base
2025 INEOS Grenadier Fieldmaster
2025 INEOS Grenadier Trialmaster
2025 INEOS Grenadier Quartermaster Base
2025 INEOS Grenadier Quartermaster Fieldmaster
2025 INEOS Grenadier Quartermaster Trialmaster
2026 INEOS Grenadier Base
2026 INEOS Grenadier Black Edition
2026 INEOS Grenadier Fieldmaster
2026 INEOS Grenadier Trialmaster
2026 INEOS Grenadier Quartermaster Base
2026 INEOS Grenadier Quartermaster Fieldmaster
2026 INEOS Grenadier Quartermaster Trialmaster

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1