FOX Factory Race Series 2.0 x 3.0 Bump Stop, Part Number 981-20-042

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 3.0 Bump Stop is engineered for demanding off-road applications where suspension control, durability, and consistent performance are essential. FOX devotes extensive research and development to creating race-proven suspension components capable of handling hard landings, rough desert terrain, and technical rock-crawling conditions. The result is a dependable bump stop designed to help manage suspension compression and protect the vehicle during aggressive driving.

Patented internal bypass technology helps deliver controlled, progressive damping throughout the stroke. By directing oil around the piston at specific points, the system provides a compliant feel in the ride zone while generating additional resistance as compression increases. This allows the FOX Race Series bump stop to be tuned for vehicle weight, terrain, and driving speed. The serviceable and rebuildable design also supports long-term maintenance, while custom valving options are available for specialized setups.

Built for harsh environments, the FOX bump stop features a robust aluminum body, a cactus cooler reservoir, and a hard chrome-plated 4130 chromoly steel shaft with redundant seals. A proprietary Cerakote protective ceramic coating over a zinc-plated basecoat helps resist wear and corrosion. Black anodized CNC-machined aluminum components and FOX JM92 MIL-SPEC oil developed for off-road racing further support reliable operation. Part Number 981-20-042 is supplied as a single automotive suspension component. Professional installation and application-specific setup are recommended.

Key Product Specifications & Technical Data

• Brand: FOX
• Product Type: Race Series bump stop
• Part Number: 981-20-042
• Application: Automotive off-road suspension
• Technology: Patented internal bypass damping
• Construction: Aluminum body with CNC-machined components
• Shaft Material: Hard chrome-plated 4130 chromoly steel
• Serviceability: Owner serviceable and rebuildable

What's Included

• One FOX Factory Race Series 2.0 x 3.0 Bump Stop

Features:

• Race-proven damping performance helps control suspension compression during aggressive off-road driving.
• Patented internal bypass technology provides progressive resistance and a controlled ride zone throughout the stroke.
• Serviceable and rebuildable design supports long-term maintenance and custom valving options.
• Durable construction includes an aluminum body, Cerakote protective coating, black anodized components, and a hard chrome-plated 4130 chromoly steel shaft.

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