Engine Parts

Ball bearings should always be your first RC upgrades since they reduce friction for less rolling resistance, and that means higher speed and longe...

Slipper Pads (2pcs) Compatible with: GEN8 AXE, GEN8 V2, MARKSMAN, WENDIGO, WENDIGO KIT, GEN8 SCOUT II

Specifications: High Grade Steel Durable Black or Silver Finishes Weight: 0.32oz / 9g What's Included: 20x RC4WD Miniature Scale Hex Bolts (M2.5...

45T Plastic Spur Gear (.8 Module) Compatible with: GEN8 AXE, GEN8 V2, MARKSMAN, WENDIGO, WENDIGO KIT, GEN8 SCOUT II

Pull Start One Way Bearing HPI 21BB S25 F4.1 G3.0 Nitro Engine

HPI Racing replacement exhaust gaskets for ALL the HPI Nitro Vehicles. Constructed of black fiber gasket material. This product includes five gaske...

HPI Racing extra long shaft is required for starting the Savage XL. This 225mm shaft also comes in handy when starting Savage trucks with optional ...

HPI Racing package ten of S13 o-rings are constructed of rubber and black in color. Requires: Installing in vehicle Specs: Thickness: 1.5mmInner Di...

HPI Racing package of ten 4x1mm o-rings are constructed of rubber and black in color. Requires: Installing in vehicle Specs: Thickness: 1mmInner Di...

HPI Racing package of ten P10 o-rings are constructed of rubber and black in color. Specs: Thickness: 2mmInner Diameter: 10mm

HPI Racing package of eighty P20 O-rings are constructed of rubber and black in color. Specs: Thickness: 2.5mm Inner Diameter: 20mm

HPI Racing package of eight S15 O-rings are constructed of rubber and red in color. Requires: Installing in vehicle Specs: Diameter: 0.6" (15mm)Thi...

This is the cylinder set for the HPI Fuelie 2.0 23cc engine.Features: Aluminum cylinder Steel piston pin Includes: Cylinder Piston pin set Two...

This is the cylinder set for the HPI Fuelie 26S engine.Features: Aluminum constructionIncludes: Cylinder, two fiber gaskets and mounting hardware

HPI exhaust gaskets is constructed of pressed composite fiber. Includes: Two Exhaust Gaskets for the HPI Baja Fuelie Engine. Requires: Installing b...

This is the HPI Crankshaft Assembly for use with the Fuelie 23 and 26 Engines.Features: Silver and copper colored Metal construction For use with t...

HPI Racing piston set for the Baja 5B fuelie engine is constructed of aluminum.  It is a good idea to also change the cylinder liner when changin...

These are the flanged cap head screws for the HPI Baja.Features: Metal constructionIncludes: Two 5mmx22mm flanged cap head screwsRequires: Installa...

This is the HPI Racing M5x16mm Cap Head Screws with Spring Washer for the Baja 5B Fuelie Engine, HPIG5401. Features: Plain black steel constructio...

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