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Rancho · RS55378

Part #: RS55378
UPC: 039703007177

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Description: RS5000X Suspension Shock Absorber; Rancho RS5000X RS55378 Suspension Shock Absorber for Chevrolet Silverado 2500 HD

Description:

Description

Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000™X shocks deliver improved overall on- and off-road handling and performance.

Features & benefits

  • IMPROVED HANDLING AND PERFORMANCE -- Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE -- Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE -- Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES -- Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248°F
  • SMOOTH PERFORMANCE -- Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE -- Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL -- Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST -- Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE -- Comes with Rancho’s Limited Lifetime Warranty

Application summary

Year Make / model
2011-2025 Chevrolet Silverado 2500 HD
2011-2025 Chevrolet Silverado 3500 HD
2011-2025 GMC Sierra 2500 HD
2011-2025 GMC Sierra 3500 HD

Specifications

GTIN
00039703007177
Weight
6.65 lb
Height
23.63 in
Length
5.75 in
Width
5.75 in
Life cycle
Available to Order
AAM brand code
RAN
Warehouse brand code
RAN
AAIA brand code
BCKM

Attributes

Adjustable Damping
No
Adjustable Rebound
No
Air Adjustable
No
Air Ride Suspension
No
Bearing Plate Included
No
Body Color
White
Body Diameter
2.25
Body Material
Steel
Boot Included
No
California Proposition 65
No
Coil Over Springs Included
No
Collapsed Length
14.670 in.
Collapsed Length (in.)
14.670
Color
White
Compressed Bumper Stop
No
Compressed Length
14.67
Cylinder Color
White
Cylinder Included
No
Cylinder Material
Steel
Cylinder Outside Diameter
2.25
Dust Shield
No
Dust Shield Included
No
Extended Bumper Stop
No
Extended Hydraulic Lockout
No
Extended Length
18.98
Extended Length (in.)
18.980 in.
Finish
Painted
Fully Open Length
18.980 in.
Gas Charged
Yes
Grade Type
Performance
Internal Construction Type
Twin Tube
Lower Mount Code
CLEV
Lower Mount Type
Clevis Bracket Mount
Lower Mounting Code
CLEV
Lower Mounting Description
Clevis Bracket Mount
Max Year Covered
2020
Min Year Covered
2011
Most Popular Make / Model
Chevrolet Silverado 2500 HD
Most Popular Make/Model
Chevrolet Silverado 2500 HD
Most Popular Year
2015
Mounting Hardware Included
Yes
New Or Remanufactured
New
Part Description
Shock Absorber
Parts Pack
P01299
Parts Pack(s)
P01299
Product Grade
Premium
Rod Diameter
0.622
Shaft Material
Nitrocarburized
Shock Absorber Body End Measuring Point
Center of Cross Pin
Shock Absorber Bore Size
1.3779527559055118
Shock Absorber Rod End Measuring Point
Center of Mounting Hole
Shock Stroke
4.31
Shock Stroke (in.)
4.310
Spring Included
No
Spring Isolators Included
No
Spring Seat Included
No
Total Part VIO
1847103
Travel Length
109.5
Type
Telescopic
Upper Mount Code
XP15
Upper Mount Type
Cross Pin Mount - Closed Ended, 1/2" Hole ID (Both Ends) X 3 3/4" Pin Length (Hole Center to Center)
Upper Mounting Code
XP15
Upper Mounting Description
XP15

Fitment status

Select a vehicle or engine to see whether this part applies to your application.

Application summary

2011-2025 Chevrolet Silverado 2500 HD; 2011-2025 Chevrolet Silverado 3500 HD; 2011-2025 GMC Sierra 2500 HD; 2011-2025 GMC Sierra 3500 HD
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