Pair Rear Shock Strut Assembly #84178213 For 15-18 GMC Sierra 1500 Denali

Rear Shock Strut Assembly Pair for GMC Sierra 1500 Denali

This pair of rear shock strut assemblies replaces OEM part 84178213 and restores rear damping and ride stability on 2015 through 2018 GMC Sierra 1500 Denali trucks.

Overview

This two-piece rear shock strut assembly set is a direct-fit replacement for 2015-2018 GMC Sierra 1500 Denali models, cross-referenced to part number 84178213. The rear shock strut assembly pair controls rear suspension motion to keep the truck level and planted, whether empty or loaded. A practical choice for owners servicing both rear corners at once.

Built For Performance

• Pair of rear shock strut assemblies, one for each side
• Cross-references OEM part 84178213 for direct fitment
• Hydraulic damping tuned for light-duty truck rear suspension
• Sealed body resists leaks and road grime
• Rubber bushings and mounts reduce noise transfer into the cabin

Fits These Machines

• for GMC Sierra 1500 Denali 2015
• for GMC Sierra 1500 Denali 2016
• for GMC Sierra 1500 Denali 2017
• for GMC Sierra 1500 Denali 2018

On-The-Job Use

• Replacing worn rear shocks on a Sierra 1500 Denali daily driver
• Servicing the rear suspension after towing or heavy hauling
• Quieting rear-end bounce and body roll over broken pavement
• Pairing with new mounts during a rear suspension refresh

Specs At A Glance

Good To Know

Q: Does this pair cover both rear corners of the truck? A: Yes, the set includes two rear shock strut assemblies so both sides can be replaced in one job. Match them to the OEM 84178213 configuration.

Q: Can these be installed with basic hand tools? A: Rear shock replacement on a Sierra 1500 Denali is a straightforward job with hand tools, though a spring compressor may be needed depending on the assembly design. Follow the factory torque specs.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.