Engine Parts

HPI Racing package of four o-rings for the Baja is constructed of rubber and black in color. For use with the #15411 Air Filter. Requires: Install...

This is the composite rotary carburetor complete for the HPI Racing Nitro Star F2 and T-15L/5.5mm engines.Features: Throttle lever High and low s...

This is the assembled composite rotary carburetor for the HPI Nitro Star G3.0.Features: Aluminum and steel construction that is black in color Rot...

This is the midrange needle valve for the Nitro Star G3.0 engine.Features: Brass constructionIncludes: Midrange needle valve with two O-rings

This is the starting shaft for the HPI T3.0 engine.Features: Hardened steel construction Connects the crankshaft to the pull starter Includes: S...

This is the Dust Protection and O-Ring Set for the HPI Nitro Star G3.0 engine, HPIG1409. Features:Black rubber dust protector for carb slide valveB...

HPI crankcase assembly for the Baja Fuelie engine. Two-piece cast aluminum construction with fiber gasket and front and rear ball bearings pre-inst...

This is the Replacement Lock Pin for the HPI Nitro Star T-15 engine. This is the pin that locks the carburetor into the crankcase. Features: Steel...

This is the stock throttle arm and nut for the HPI T-15 Engine. These parts are located on the carb barrel.Features: Black plastic arm, brass nutIn...

This is a Back Plate with O-Rings and Screws for the HPI Nitro Star G3.0 Engine, HPIG1409. Features: Silver aluminum construction Includes: One ba...

HPI Racing cylinder head is constructed of silver colored aluminum. These are the cooling fins at the top of the engine. Specs: Height: 35mm (1.37"...

HPI Racing underhead is constructed of aluminum. For the Nitro Star G3.0. Requires: Assembly on the cylinder head

HPI Racing piston pin and retainer set are constructed of silver metal. Replaces worn or damaged piston pin and retainer. Requires: Installation on...

This is the HPI Starting Shaft for the Savage X 4.6. This Starting Shaft must be used with the HPI Nitro Start Back Plate Set (G/F Series HPI109535...

HPI Racing chromed brass cylinder with aluminum piston and factory installed aluminum connecting rod, piston pin and two pin retainers. Requires: I...

HPI Racing bearing is constructed of steel with preinstalled one-way bearing Specs: Hex size: 9/16" (14mm)Inside diameter: 1/4" ( 6mm) Requires:Â...

HPI Racing crankshaft is constructed of machined steel with pilot shaft style (SG shaft). Requires: Installing in crankcase Specs: Length: 3.07" (...

HPI Racing connecting rod has knife-edge billet aluminum construction with dual bushings. Requires: Attaching to piston and crankshaft

HPI Racing starting pin and pressure spring are constructed of steel. These parts are installed into the back of the crankshaft and is what the sta...

HPI Racing cylinder piston and connecting rod is made of ABC construction, Aluminum piston with a Brass cylinder that is Chrome plated. Replaces wo...

HPI Racing main carburetor body is constructed of black and purple aluminum and composite material. Low speed spray bar is preinstalled. This is a ...

This is the HPI SG Shaft/F3.5 Crankshaft for the HPI Trophy 3.5 and the Nitro Star F3.5 Engine with Pullstart, SG Shaft/F3.5.Features: Silver color...

This is the HPI Aluminum Heatsink Head. This Heatsink Head is black colored and is compatible with the HPI Trophy 3.5 and the Nitro Star F3.5 Engin...

HPI Racing crankcase is constructed of black aluminum with pre-installed front and rear crankshaft bearings. Requires: Installing all engine compon...