Rear Shock Absorber for 2017-2024 Ford F-450 Super Duty - Rancho RS55254A

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$90.99

MPN: RS55254A

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

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Rancho Suspension Shock Absorber P/N:RS55254A

$90.99

Description

Tame rough pavement and rough trails with the Rancho RS5000X Suspension Shock Absorber RS55254A, a rear shock built around Rancho's exclusive Cross Tuned technology — a rebound valving system and advanced compression phase tuned for improved handling and performance on and off road. It installs as a direct-fit replacement for the 2017-2024 Ford F-450 Super Duty (see the Buyer's Guide tab for engine-level detail).

Cross Tuned technology: exclusive rebound valving and advanced compression phase improve overall on- and off-road handling; Progressive Engagement Valving is custom-tuned per vehicle to reduce initial low-speed impacts and minimize a rough ride.
Strong and durable: 16mm nitro-carburized piston rod resists scuffs and corrosion, double-welded loops at stress areas, a 35mm sintered iron piston, and a polyvinyl protective boot.
Temperature-ready: large twin-tube body filled with all-weather fluid for cooler operation and control, rated to withstand internal temperatures of -40 to 248°F.
Reduces fade: nitrogen gas pressurized to 150 PSI minimizes air-to-oil mixing to cut damping fade and foaming; a low-friction self-lubricating seal retains gas and oil for quicker rebound and smoother compression.

Backed by Rancho's Limited Lifetime Warranty.

Interchange: HC3Z18125A · HC3Z18125X · LC3Z18125J · LC3Z18125W

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

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

HC3Z18125A, HC3Z18125X, LC3Z18125J, LC3Z18125W

Frequently Asked Questions

What vehicle does the RS55254A fit?

It is a direct-fit rear shock absorber for the 2017-2024 Ford F-450 Super Duty. Check the Buyer's Guide tab to confirm the exact application for your truck.

What is Cross Tuned technology?

It is Rancho's exclusive rebound valving system paired 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 for cooler operation and is rated to withstand internal temperatures from -40 to 248°F.

Why is it nitrogen gas pressurized?

It is charged with nitrogen gas to 150 PSI to minimize air-to-oil mixing, which helps reduce damping performance fade and foaming.

Should I replace shocks in pairs?

This listing is for one shock. Replacing both sides on the same axle together as a matched pair is recommended for balanced, even ride quality.