FOX Factory Race Series 3.0 Internal Bypass Rear Shocks for 2021+ Ford F-150, 0-1 in Lift, Part Number FOX883-26-121

FOX Factory Race Series 3.0 Internal Bypass shocks for the 14th generation Ford F-150 deliver position-sensitive damping technology, Dual Speed Compression (DSC) adjustment, and high-speed ready performance in a bolt-on kit. Patented Internal Bypass technology allows for multiple zones of damping control. The result is a comfortable, confident ride with increased damping force through rough terrain. Internal bypass shocks produce more force progressively to control hard bottom-outs, prevent harsh top-outs, and provide an initial catch for landing. Shock fluid bypasses the main piston through aseries of bleed holes in the ride zone. As the shock extends past the ride zone in rebound or compression, the bleed holes terminate, forcing fluid through the main piston. The Factory Race Series shocks also stay cool by utilizing a Recirculating Reservoir Bridge. The bridge circulates shock fluid between the finned external reservoir and body using checked ports. Type III anodization prevents corrosion and wear of the 3-inch diameter aluminum bodies.The DSC adjuster allows you to dial in your F-150 for load, environment, and driving style.FOX Internal Bypass shocks deliver the support and confidence you need while driving Mach-3 through rugged terrain. Experience race-bred performance next time you leave the pavement. Application specific valving to maximize performance. Uncompromised performance through FOX’s patented internal bypass technology delivers the feel of near-endless suspension travel. Exclusive internal bypass technology allows oil to flow around the piston at some points of the stroke – while creating humongous pressure at other points – supporting the vehicle like no other product can. Floating through terrain is accomplished with FOX’s ride zone – combining a race-developed shock piston, internal bypass and Dual Speed Compression adjustment – allowing fine tuning for weight, terrain and speed. Dominate any terrain with the brute strength of 3- and 2.5-inch aluminum bodies, cactus cooler reservoirs and 7/8” shafts with redundant seals, all proven in the harshest of environments under the toughest of conditions.

• Finned External Reservoir System Dissipates Heat Fast
• Black Anodized CNC Machined Aluminum Components
• Quick Switch Compression And Rebound Adjusters

Upgrade the rear suspension of your 2021 and newer Ford F-150 with FOX Factory Race Series 3.0 Internal Bypass piggyback shocks. Part Number FOX883-26-121 is engineered for trucks with a 0-1 inch lift and uses application-specific valving to provide controlled damping across changing terrain, vehicle loads, and driving conditions. The bolt-on design delivers race-developed performance without requiring extensive suspension modifications.

Patented FOX Internal Bypass technology creates multiple damping zones throughout the shock stroke. In the ride zone, fluid flows through calibrated bleed passages for a controlled, comfortable response. As the shock moves farther into compression or rebound, those passages close and force fluid through the main piston, progressively increasing damping to help manage hard bottom-outs and reduce harsh top-outs. Dual Speed Compression adjustment allows the damping response to be fine-tuned for cargo, terrain, and driving style.

The Factory Race Series construction is designed for demanding off-road use. A recirculating reservoir bridge moves fluid between the shock body and finned external reservoir to help dissipate heat during extended operation. Type III anodized aluminum bodies resist corrosion and wear, while 7/8-inch shafts and redundant seals provide durability in harsh environments. Quick-switch compression and rebound adjusters make trail-side tuning straightforward.

These FOX shocks fit the rear of the 2021 and newer Ford F-150, including applications listed by FOX for the 2021 and 2022 model years. Verify the exact truck configuration and suspension setup before installation. The package includes the FOX rear shock components required for the specified application; installation hardware and documentation are supplied according to the manufacturer’s kit configuration.

Key Product Specifications and Technical Data

• Brand: FOX
• Part Number: FOX883-26-121
• Series: Factory Race Series
• Shock Type: 3.0 Internal Bypass piggyback rear shock
• Vehicle Fitment: 2021+ Ford F-150
• Lift Compatibility: 0-1 inch
• Adjustment: Dual Speed Compression with compression and rebound adjusters
• Construction: Anodized aluminum body, finned external reservoir, 7/8-inch shaft, and redundant seals

What's Included

• FOX Factory Race Series rear shock components for the specified Ford F-150 application
• Manufacturer-supplied installation components and documentation, as applicable to the kit

Features:

• Internal Bypass Damping: Patented multi-zone damping technology delivers a controlled ride in the ride zone and progressively increases support during deep compression and rebound.
• Dual Speed Compression Adjustment: Allows the shock response to be tuned for vehicle load, terrain, speed, and driving style.
• Recirculating Reservoir Bridge: Circulates fluid between the shock body and finned external reservoir to help manage heat during demanding off-road driving.
• Race-Ready Construction: Anodized aluminum bodies, 7/8-inch shafts, redundant seals, and application-specific valving provide durable performance for rugged terrain.

Fitments:
2021 Ford F-150 King Ranch
2021 Ford F-150 Lariat
2021 Ford F-150 Limited
2021 Ford F-150 Platinum
2021 Ford F-150 Police Responder
2021 Ford F-150 Raptor
2021 Ford F-150 SSV
2021 Ford F-150 Tremor
2021 Ford F-150 XL
2021 Ford F-150 XLT
2022 Ford F-150 King Ranch
2022 Ford F-150 Lariat
2022 Ford F-150 Limited
2022 Ford F-150 Platinum
2022 Ford F-150 Police Responder
2022 Ford F-150 Raptor
2022 Ford F-150 SSV
2022 Ford F-150 Tremor
2022 Ford F-150 XL
2022 Ford F-150 XLT
2023 Ford F-150 King Ranch
2023 Ford F-150 Lariat
2023 Ford F-150 Limited
2023 Ford F-150 Platinum
2023 Ford F-150 Police Responder
2023 Ford F-150 Raptor
2023 Ford F-150 SSV
2023 Ford F-150 Tremor
2023 Ford F-150 XL
2023 Ford F-150 XLT
2024 Ford F-150 King Ranch
2024 Ford F-150 Lariat
2024 Ford F-150 Platinum
2024 Ford F-150 Police Responder
2024 Ford F-150 Raptor
2024 Ford F-150 Raptor R
2024 Ford F-150 SSV
2024 Ford F-150 STX
2024 Ford F-150 Tremor
2024 Ford F-150 XL
2024 Ford F-150 XLT
2025 Ford F-150 King Ranch
2025 Ford F-150 Lariat
2025 Ford F-150 Platinum
2025 Ford F-150 Police Responder
2025 Ford F-150 Raptor
2025 Ford F-150 SSV
2025 Ford F-150 STX
2025 Ford F-150 Tremor
2025 Ford F-150 XL
2025 Ford F-150 XLT
2026 Ford F-150 King Ranch
2026 Ford F-150 Lariat
2026 Ford F-150 Platinum
2026 Ford F-150 Police Responder
2026 Ford F-150 Raptor
2026 Ford F-150 SSV
2026 Ford F-150 STX
2026 Ford F-150 Tremor
2026 Ford F-150 XL
2026 Ford F-150 XLT

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