Rancho Suspension Shock Absorber P/N:RS55383

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$90.99
MPN: RS55383
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Rancho Suspension Shock Absorber P/N:RS55383
Rancho Suspension Shock Absorber P/N:RS55383
$90.99

Smooth out the ride and sharpen on- and off-road handling with the Rancho RS5000X Suspension Shock Absorber (RS55383). This rear shock is a direct-fit replacement for the 2011-2018 Chevrolet Silverado 2500 HD, 2011-2018 Chevrolet Silverado 3500 HD, 2011-2018 GMC Sierra 2500 HD, and 2011-2018 GMC Sierra 3500 HD. Rancho's exclusive Cross Tuned technology pairs a rebound valving system with an advanced compression phase to improve overall handling and performance on and off road.

  • Cross Tuned + Progressive Engagement Valving: custom-tuned per vehicle to help reduce initial low-speed impacts and minimize a rough ride.
  • Strong and durable: 16mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas, a 35mm sintered iron piston, and a polyvinyl protective boot.
  • Handles extreme temperatures: large twin-tube body filled with all-weather fluid rated to withstand internal temperatures of -40 to 248°F for cooler operation.
  • Reduces fade: nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixing and help reduce damping fade and foaming.

A polyurethane rebound bumper, rubber bushings, and a fluon-banded piston help absorb harshness, while a low-friction, self-lubricating seal retains gas and oil for quicker rebound. Backed by Rancho's Limited Lifetime Warranty.

Interchange: RS5383 · 23152RC · N8036

This part cross-references / interchanges with the following part numbers:

RS5383, 23152RC, N8036

Frequently Asked Questions

What vehicles does the Rancho RS55383 fit?

It is a direct-fit rear shock for the 2011-2018 Chevrolet Silverado 2500 HD and 3500 HD, and the 2011-2018 GMC Sierra 2500 HD and 3500 HD. See the Buyer's Guide tab to confirm your configuration.

Is this a front or rear shock?

The catalog lists the RS55383 in the rear position for the applications shown.

What is Cross Tuned technology?

It's Rancho's exclusive setup combining a rebound valving system with an advanced compression phase, designed to improve overall handling and performance both on and off road.

How does this shock handle temperature extremes?

Its large twin-tube body is filled with all-weather fluid rated to withstand internal temperatures of -40 to 248°F, which helps allow cooler operation.

What numbers does this shock interchange with?

It cross-references RS5383, 23152RC, and N8036.