HPI Savage 21 Shock Internal Service Kit SAV13170A+B/AD by GPM  [SAV13170A+B/AD]

Savage 21 shock internals and service info

This aftermarket kit supplies internal damper components for HPI Savage 21 models that use SAV13170A and SAV13170B assemblies. The components serve as correct-fit replacement items to allow rebuilding and basic tuning of the shocks.

Compatibility is limited to the SAV13170A and SAV13170B listed configurations, so confirm your chassis parts before ordering. Installation normally involves dismantling the damper, inspecting pistons and seals, then refilling with the appropriate shock oil and setting spring preload to tune response.

Use this kit for scheduled maintenance or when you need to change shock behaviour during setup trials; it supports routine servicing and small-step tuning of Savage 21 shock units.