Rancho RS994120 RS9000XL 9-Position Adjustable Shock Absorber

The Rancho RS994120 RS9000XL is a premium, nine-position manually adjustable shock absorber engineered for trucks, SUVs, and Jeeps that demand versatile performance on- and off-road. Recognized as the first nine-position manually adjustable ride control series in the off-road market, the RS9000XL gives drivers complete, hands-on control over damping firmness — from a plush street setting all the way to maximum off-road stiffness.

Key Features:

• 9-Position Adjustable Damping: Easy-to-use knob delivers nine distinct levels of performance, providing up to a 400% change in damping control from setting 1 to setting 9 — dial in the perfect ride for towing, hauling, highway driving, or rugged trail use
• Tri-Tube Body (up to 2.75" diameter): Oversized body increases fluid capacity and dissipates heat more effectively, ensuring consistent performance under the most demanding conditions
• Nitrogen Gas Charged: Pressurized nitrogen minimizes air-to-oil mixing, reducing damping fade and preventing foaming for reliable, repeatable performance
• Heavy-Duty 18mm Nitro-Carburized Piston Rod: Resists scuffs and corrosion; double-welded loops at stress areas add structural durability
• Graphite-Filled Fluon-Banded Piston: Works with a low-friction, self-lubricating seal to deliver quicker rebound and smoother compression stroke
• Polyurethane Rebound Bumper & Bushings: Absorbs ride harshness and enhances responsiveness to changing road conditions for an overall smoother ride
• Polyvinyl Protective Boot: Shields the shock rod and oil seal from dirt, debris, and the elements for extended service life
• Premium Liquid Metallic Finish: Long-lasting finish resists corrosion and provides a clean, professional appearance
• Limited Lifetime Warranty: Backed by Rancho's Limited Lifetime Warranty for peace of mind

The RS994120 is the current production replacement for the previously released RS999120, delivering the same proven RS9000XL platform with updated manufacturing standards. Whether you're hitting the trails, towing a trailer, or simply upgrading worn factory shocks, the Rancho RS9000XL delivers the adjustability and durability serious drivers expect.