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You are here: Home > R/C Cars, Trucks, & Parts > HPI Racing > Savage X, XL, 21, 25 & SS Trucks > Starting Systems
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HPI Pull-Start Assembly: Nitro Star 21BB, 25, & F4.1
Our Price: $16.99

This is the HPI pull-start assembly for the HPI F4.1 (which is the 4.1 engine on the Savage X), the Nitro Star BB Series 21 & 25, Force 21 & 25, and G3.0 engines from HPI, as well as the Force 21 & 25 from Ofna. This fits the Savage X 4.1 as well as the Savage .21 and .25 truck engines.
HPI One-Way Bearing: Nitro Star 21BB, 25, & F4.1
Our Price: $12.99

This is the HPI One-Way Bearing for the HPI F4.1 (which is the 4.1 engine on the Savage X), the Nitro Star BB Series & Force 21 & 25, and G3.0 engines from HPI, as well as the Force 21 & 25 from Ofna. This fits the Savage X 4.1 as well as the.21 and .25 Savage engines. This one-way bearing allows the recoil starter to grab the crankshaft to start the engine and spin freely once running.
HPI Pull-Start Assembly w/o One-Way Bearing: K4.6 & 4.6 HO
Our Price: $16.99

This is the HPI Recoil Starter Assembly for the HPI Nitro Star K4.6 and 4.6HO engines on the Savage and Hellfire trucks. This also fits the HPI K5.9 engine on the Savage XL 5.9 trucks.
HPI Roto-Start System: Savage 21, 25
Our Price: $32.99

This is an HPI Roto-Start System for the HPI Savage X, 21, and Savage 25 trucks, as well as the HPI G3.0 engine. This will also work on the Ofna Force 21 and 25 engines. If you want something to fire that glow engine up easier than pull-starting, this is what you need. Included are the Roto-Start, the starter shaft, and the engine backplate, with tough metal gears. These are a must for a serious Savage owner.
HPI Roto-Start Back Plate: Savage X (F4.1), 21, 25
Our Price: $12.99

This is the Back Plate Unit for the HPI F4.1 (which is the 4.1 engine on the Savage X), the Nitro Star BB Series & Force 21 & 25 engines from HPI, the HPI G3.0, as well as the Force 21 & 25 from Ofna. This fits the Savage X 4.1 as well as the.21 and .25 Savage engines.
HPI Roto-Start Back Plate Gear Set: Savage X (F4.1), 21, 25
Our Price: $9.99

This is a Roto-Start Backplate Gear Set for the HPI Savage X, .21, and .25 Roto Start systems. These gears mount on the back of the engine being used.
HPI Roto-Start System w/K4.6 Backplate: Savage X 4.6, Hellfire
Our Price: $39.99

This is the HPI Roto-Start Shaft Drive Electric Starting System for use with HPI's K4.6 and K5.9 engines found in the Savage SS .28, Savage 4.6, Savage X 4.6, Savage XL K5.9, and Hellfire trucks. This includes the shaft drive starter and the Roto-Start backplate.
HPI Roto-Start K4.6 Backplate: Savage X 4.6, Hellfire
Our Price: $15.99

This is the HPI Roto-Start K-Series Engine Backplate for use with HPI's K4.6 and K5.9 engines found in the Savage SS .28, Savage 4.6, Savage X 4.6, Savage XL K5.9, and Hellfire trucks. This is the Roto-Start backplate only. If you need the complete system, please seach for part number HPI87126.
HPI One-Way Bearing: K4.6 & 4.6 HO
Our Price: $14.99

This is the Pull Start Shaft Holder with One-Way Bearing for the HPI Nitro Star 4.6cc engines. This fits the HPI K4.6 and 4.6 HO engines. These engines are in vehicles such as the HPI Savage 4.6 and Hellfire trucks.
HPI Roto-Start 2 System w/Backplate: Savage X w/4.1 Engine (also fits Savage 21 & 25)
Our Price: $39.99

This is the HPI Roto-Start 2 Electric Shaft Drive Starter System for the Savage X trucks. This will also fit the HPI Nitro Star F-series engines that have pull-starts. This will also fit the HPI G3.0 engine.