King 20C001-376 OEM Performance 2.0 Rear Internal Reservoir Shock for 2.5-5" Lift

The King Shocks 20C001-376 is a rear 2.0-inch diameter internal reservoir shock absorber engineered for lifted applications requiring 2.5 to 5 inches of lift height. Built with the same precision and materials found in King's high-end race shocks, this OEM Performance Series unit delivers a significant upgrade in ride quality, wheel control, and long-term durability over factory shock absorbers.

King's internal floating piston (IFP) design separates the oil and nitrogen gas charges to prevent aeration and maintain consistent damping performance under demanding on- and off-road conditions. The shock features a 2.0-inch O.D. cylinder precision bored to within +/- .001" for tight tolerances and reliable performance. All aluminum components are machined from aircraft-quality billet, and the hard-anodized 6063 aluminum alloy reservoir keeps weight low while resisting heat and corrosion.

Key Features:

• 2.0" O.D. monotube gas-charged design with internal floating piston (IFP) reservoir
• Shock cylinder precision bored to within +/- .001" for consistent damping
• Hard anodized 6063 aluminum alloy reservoir — lightweight and corrosion resistant
• Heat-treated 6061 aluminum alloy piston with King's proprietary port configurations
• Wear bands constructed from Rulon composite for exceptional durability
• Large-diameter shafts with a minimum tensile strength of 100,000 PSI
• Shafts hard chromed and micro-polished to a 6 RA finish for extended seal life
• High-quality fittings mated to Aeroquip high-pressure hoses
• 275 PSI nitrogen gas charge for consistent, fade-free performance
• 10.5" stroke | 19.46" compressed length | 29.96" extended length
• 100% bolt-on installation — no drilling or modification required
• Fully rebuildable, revalveable, and tunable
• Custom valve adjustments possible with simple hand tools
• Hand built in the USA from premium materials
• Sold individually (each)

Every King OEM Performance shock undergoes extensive dynamometer lab testing and real-world validation to deliver the optimal damping curve for the target application. The result is a shock that tames big tires and aggressive tread patterns while remaining composed and comfortable for daily driving. Custom tuning, lengths, and anodized color options are also available separately. Backed by King's 90-day manufacturer warranty against defects.