Fox Racing Shocks 981-20-043 Factory Race 2.0 x 4.0 Hydraulic Bump Stop Pinch Mount

The Fox Racing Shocks 981-20-043 is a Factory Race Series hydraulic bump stop engineered to provide precise control of the final inches of suspension travel in extreme off-road conditions. Developed in collaboration with top off-road racing teams, this 2.0-inch diameter bump stop delivers race-proven damping technology in a compact, purpose-built package designed to maximize suspension performance without harsh bottoming.

Key Features:

• 2.0-inch body diameter with 4.0-inch travel stroke
• 14.11-inch extended length / 10.10-inch collapsed length (excluding nitrogen cap)
• 1.25-inch hard chrome plated 4130 chromoly steel shaft
• Pinch bolt style mounting for easy installation
• Built-in FOX Air Valve (FAV) for precise nitrogen charge adjustments
• Proprietary Cerakote ceramic coating over zinc plated basecoat for superior corrosion protection
• JM92 MIL-SPEC oil formulated specifically for off-road racing conditions
• Replaceable Delrin strike pad for quiet, predictable operation
• Black anodized CNC machined 6061-T6 billet aluminum components
• Velocity-sensitive tunable valve shims with redundant sealing system
• Owner serviceable and rebuildable design

This bump stop can be converted to a 3-inch stroke by adding internal spacer 233-00-046-B. The 981-20-043 shares the same body and shaft as the 981-20-042 (3-inch stroke) model. Perfect for off-road racing applications including desert racing, rock crawling, and extreme terrain where precise bottoming control is essential.