FOX Factory Race Series 2.0 x 4.0 Bump Stop, 1-1/4-Inch Shaft, Pinch Mount – Part 981-20-043

FOX devotes countless hours of research and development to design race-winning suspension that withstands incredible punishment and provides consistent performance you can rely on. Regardless of whether you are flying high over the desert or struggling to stick to a rock face on an off-camber climb, our shocks will give you the damping performance, suspension control and proper spring rate to get the job done. Rebuildable and serviceable. Custom valving options available. 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.

• NEW proprietary Cerakote® protective ceramic coating over zinc plated basecoat
• JM92 MIL-SPEC oil developed specifically for off-road racing
• Black Anodized CNC Machined Aluminum Components
• Hard Chrome Plated 4130 Chromoly Steel Shaft
• Hard chome plated 4130 chromoly steel shaft
• Owner serviceable and rebuildable

The FOX Factory Race Series 2.0 x 4.0 Bump Stop is engineered to provide dependable secondary suspension control during aggressive off-road driving. Designed with a 1-1/4-inch shaft and pinch-mount configuration, FOX part 981-20-043 helps manage hard compression events and reduce suspension impact loads when the vehicle reaches the limit of its primary suspension travel.

FOX develops its race suspension products through extensive testing and engineering to deliver consistent damping performance in demanding terrain. This rebuildable and serviceable bump stop uses proven internal bypass technology, allowing oil to flow around the piston at specific points in the stroke and build damping pressure where additional support is needed. The result is controlled, progressive performance across changing terrain, vehicle weight, and driving speeds.

Durability is supported by a hard chrome-plated 4130 chromoly steel shaft, black-anodized CNC-machined aluminum components, and a proprietary Cerakote protective ceramic coating over a zinc-plated basecoat. JM92 MIL-SPEC oil, developed for off-road racing, helps maintain dependable operation under harsh conditions. The FOX Factory Race Series bump stop is owner serviceable and rebuildable, making it suitable for builders and racers who require long-term maintenance and tuning capability. Custom valving options are available through FOX suspension specialists.

What's Included: One FOX Factory Race Series bump stop assembly. Installation hardware, mounting brackets, and vehicle-specific fitment components are not specified and may require separate purchase.

Features:

• Race-developed damping: Helps provide consistent suspension control during severe compression events and demanding off-road use.
• Internal bypass technology: Regulates oil flow through the stroke to deliver progressive damping and added support near full compression.
• Rebuildable and serviceable design: Allows owner maintenance, rebuilding, and potential custom valving adjustments.
• Durable construction: Features a hard chrome-plated 4130 chromoly steel shaft, black-anodized CNC-machined aluminum components, Cerakote protective coating, and JM92 MIL-SPEC racing oil.

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