Quick view OMB Warehouse Angled Air filter 3-1/2" x 4" x 2-7/16" Fabric Air Filter The standard angled air filter used in most 4 cycle karting engines. 3-1/2" x 4" with a 20 degree angle. The inside diameter of the mounting flange is 2-7/16". Most OHV kart engines... $24.77 $10.84 Add to Cart
Quick view OMB Warehouse Air Filter Kit for Predator 301cc 420cc and GX240/270/340/390 Engines Air filter adapter kit for 8-16HP OHV Clone engines (1) Air Filter (1) Adapter to fit GX240, GX270, GX340, GX390 and Predator 301 & 420 (1) Choke hold bracket (1) Gasket Airflow increase is so... $38.99 Add to Cart
Quick view ARC Racing (2) Pack of GX240/GX390/Predator 420 Heavy Duty 50# Valve Springs 2 Pack of Heavy Duty Valve Springs for Honda GX240, GX270, GX340, & GX390.Approx 50 lbs at 1.125 installed height, 42lbs at 1.2, with 110 lb open pressure (.375 lift). $12.99 Add to Cart
Quick view Outerwears Outerwears Prefilter, 3-1/2" x 4" (Black) A simple, inexpensive way to protect your engine without sacrificing horsepower. Pre-Filters are made from high quality materials with a welded seam for strength. They will work on any exposed air... $19.93 $13.28 Add to Cart
Quick view ARC Racing Choke Assembly Bracket This little bracket bolts to the back of our billet air filter adapter to keep the choke lever in place. Without the stock air box, or this little device, the choke lever will pop off. This bracket... $3.00 Add to Cart
Quick view Valve Grinding Compound 120 and 220 Grit High temperature grease for lapping, grinding, sharpening and polishing metal surfacesContains sharp, graded and extremely hard grains of silicone carbide. Two .75 ounce tubes included Helps in... $12.79 Add to Cart
Quick view Feeler Gauge - .0015" to .015" Use for setting valve clearance.Has 9 leaves, 0.0015, 0.002, 0.003, 0.004, 0.006, 0.008, 0.010, 0.012, 0.015 Sets consist of 1/2" wide leaves nested in a steel frame. Each leaf is clearly marked with... $9.99 Add to Cart
Sold out Quick view 250 "Twister" Performance Cam, GX270/GX390s & 301/420 Predators The "Twister" is a High-performance grind providing significant power increase over the stock cam at a great price. Developed on the dyno and the track to maximize power on GX270s, GX390s, 301-420... $74.99 Out of stock
Quick view Other Outerwears Prefilter, 3-1/2" x 4" (Red) A simple, inexpensive way to protect your engine without sacrificing horsepower. Pre-Filters are made from high quality materials with a welded seam for strength. They will work on any exposed air... $19.93 $13.28 Add to Cart
Quick view ARC Racing Gasket, Carb / Intake GX390 Fits Honda Original Parts 16221-ZF6-800 Carb to Intake Gasket for the GX390 Engine $1.49 Add to Cart
Sold out Quick view Carb Stud 132mm GX390 predator 420 Aftermarket replacement carb stud for GX340/390, Predator 420, 13-16HP Clone engines 132 mm. end to end. Sold individually $1.95 $1.56 Out of stock
Quick view ARC Racing Air Box/Carb Gasket GX390 Predator 420 Air Box to Carb gasket for the GX340/390, many 13-16HP Clones, and Predator 420Engines. $1.25 Add to Cart
Quick view OMB Warehouse Air Filter Adapter with Choke Bracket Predator 301/420 Honda GX340/390 New ARC Air Filter Adapter for the GX340/390 Predator 301cc 420cc. Designed for the GX340/390/Predator 301/420 stock Carburetor Accommodates 2 7/16" Air Filters (AFR175) Includes Billet Adapter,... $26.99 Add to Cart
Quick view Other Outerwears Prefilter, 3-1/2" x 4" (Blue) A simple, inexpensive way to protect your engine without sacrificing horsepower. Pre-Filters are made from high quality materials with a welded seam for strength. They will work on any exposed air... $19.93 $13.28 Add to Cart
Quick view ARC Racing Rubber Air Box To Carb Gasket GX390 Predator 301 420 Thick rubber air box to carb gasket for the GX390 and Predator 301/420cc engines $8.49 Add to Cart
Quick view ARC Racing GX340/390 Predator 301cc 420cc Air Filter Adapter ARC Air Filter Adapter for the Fits Honda GX340/390, Predator 301cc/420cc stock Carburetor. Accommodates 2 7/16" Air Filters requires the DJ-1257 Choke Lever Bracket on stock type carburetors. $17.00 Add to Cart
SPECIAL ORDER: 10+ Quick view Rotary Corp Carburetor Bowl Gasket Fits Honda Gx270/Gx390 Predator 301/420 Carburetor bowl gasket Fits Honda 16010-ZE2-812. Fits GX240, GX270, GX340, GX390, GXV270, GXV340 and GXV390. Also fits Predator 301cc, 420cc and most 13-16HP OHV clone engines Not available... $18.28 $3.79 Add to Cart
Quick view DynoCams DynoCams 308 Grind, Welded Lobe Cam, Fits GX390, Predator 420 13-16HP Clone This cam is easy on the valve train and has a very wide power band. This cam requires an upgraded spring package, billet rod, and billet flywheel.Engine: 13HP Fits Honda GX390, Predator 420, DuroMax... $149.25 $148.95 Add to Cart
SPECIAL ORDER: 1 Quick view OMB Warehouse 1" Crankshaft Holder Tool Crankshaft Holder Tool for 1" Cranks This tool slides onto 1" cranks and allows you to bolt the plate to the sidecover for torquing flywheels or turning the crank when building an engine. The... $21.95 Add to Cart
Sold out Quick view OMB Predator 459 Side Cover Gasket Side cover gasket for Predator 459 engines $12.95 Out of stock
Quick view 1-1/8" Exhaust Silencer, Mini 91 "Slip On" Finally a small diameter, lightweight, silencer for 1-1/8" header pipes! This Mini 91 silencer has a total length of 4-1/2" and 1-5/8" diameter The clamp that is included is for safety wire and not... $18.95 Add to Cart
Quick view OMB 92mm Head Gasket .027 MLS for Clone Engines 440 459 460 Multi Layer Shim (MLS) Head Gasket to Fit 90-92mm Bores.027" Thick (3 Layer)Will fit most 420cc & 460cc Fits Honda style OHVs. $21.95 Add to Cart
Quick view OMB Warehouse Klotz Assembly Lube TechniPlate synthetic Assembly Lube provides needed lubrication during the critical first moments an engine runs. $12.95 Add to Cart
Quick view OMB Warehouse Predator Exhaust Nuts for 212cc, For Honda Clone 196cc Premium Exhaust Nuts for Predator 212cc, Honda Clone 196cc $1.86 $1.51 Add to Cart
Quick view NR RACING Spark Plug, NGK Iridium, BPR6EIX BPR6EIXย NGKย Iridium Spark PlugSame heat range as the OEM plug, but with iridium tip for long life and high-compression applications. $12.15 $11.03 Add to Cart
Quick view DynoCams DynoCams 275 Grind, Welded Lobe 13HP Cam, Fits GX390, Predator 420 13-16HP Clone This cam is to be used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel. Engine: 13HP Fits Honda GX390 SpecsEngine: 390cc OHV Clone... $215.00 $149.00 Add to Cart
Sold out Quick view Predator Head Gasket .018" MLS for Predator 420 90MM to 92MM Bore Multi Layer Shim (MLS) Head Gasket to fit 90 to 92mm Bores,.018" Thick (2 Layer)Will fit most 420cc & 460cc Fits Honda Style OHV engines $21.99 Out of stock
Quick view Predator Air Filter Adapter GX390 Predator 420 Designed for the Predator 420 GX340/390 stock Carburetor. Can be used with or without an Air Filter.Accepts Choke Bracket Holder (not included) Will work on GX270s, GX390s, and 13/15hp Chinese OHVs... $22.99 Add to Cart
Quick view UNKNOWN Outerwears Prefilter, 3-1/2" x 4" (Yellow) A simple, inexpensive way to protect your engine without sacrificing horsepower. Pre-Filters are made from high quality materials with a welded seam for strength. They will work on any exposed air... $19.93 $13.28 Add to Cart
Quick view OMB Predator 459 Valve Cover Gasket Valve cover gasket fits Predator 459 $5.95 Add to Cart
Sold out Quick view Predator 459 Mud Boat Header with Muffler Predator 459 Mud Boat Header with muffler This header has a flange made to fit over the wider stud spacing on the Predator 459. Comes with the header, muffler, and locking nut Shorter head studs are... $49.99 Out of stock
Sold out Quick view OMB Side Exit Header 1-1/8" OD Predator 420 459 GX390 Predator 420 459 side exit header. Also fits GX390 and most 13-16HP Clone OHV engines. Made in the USA with 1-1/8" OD tubing. The mounting holes in the flange are elongated for use with most 8 to 18... $37.95 Out of stock
Quick view OMB Predator 459 Intake Gasket Predator 459 Intake Gasket fits between the plastic spacer and cylinder head $2.00 Add to Cart
Sold out Quick view OMB Predator 459 Header 1-1/8" OD Go Kart Predator 459 Go Kart header. Also fits GX390 and most 13-16HP Clone OHV engines. Made in the USA with 1-1/8" OD tubing. $39.95 Out of stock
Quick view Rotary Corp FITS DENSO SPARK PLUG W20EX-U AUTOLITE 63, CHAMPION N9YC, FITS DENSO W20EX-U, Fits NGK BP6ESAUTOLITE 63 CHAMPION N9YC FITS DENSO W20EX-U NGK BP6ES $4.59 Add to Cart
Quick view NR RACING Gasket, Head, 460cc (92mm), Fiber .045" ".045"" Fiber Gasket to Fit 90-92mm Bores Will fit most 420cc and up 13/15hp Chinese OHVs *Picture is for reference only. Color and style may vary." $14.99 Add to Cart
Quick view NR RACING Oil Drain Extension, Drainzit; GX240 to GX390, 420cc Predator Honda Oil Drain Extension for GX240 to GX390 and 420cc PredatorChange oil without the mess! This Drainzit brand extension is easy to install, simple to use, and requires no engine modification. May... $32.99 Add to Cart
Quick view NR RACING Lifter, 13hp, Aftermarket Replacement (Chinese), Each Aftermarket Replacement Lifter for 13/15hp Chinese OHVs*Note: Sold individually.ย Clone lifters have a lot of variance in length and may be slightly longer than Genuine Honda lifters. $3.99 Add to Cart
Quick view NR RACING Rebuild Kit, Carb, GX240 to GX390: Genuine Honda Genuine OEM Honda Carb Rebuild Kit for GX240-GX390 $17.30 $15.45 Add to Cart
SPECIAL ORDER: 10+ Quick view OMB 54# Valve Springs Pair GX240/270/390 Predator 420 Severe Duty Valve Springs - Pair Fits Honda GX 240, 270, 340, and 390, Predator 301/420 (Hemi and non-Hemi heads), and most 13-16 HP Clone engines Made of high-quality alloyApproximately 54lb at 1... $29.14 $27.99 Add to Cart
SPECIAL ORDER: 10+ Quick view PREDATOR 420 DynoCams MOD 2 Grind, Welded Lobe Cam, Fits GX390, Predator 420 13-16HP Clone DescriptionRequires an upgraded spring package, billet rod, and flywheel. It's also a great cheater stock cam if there are no duration checks.The lobes are hardened for extra durability, extending... $149.25 $148.95 Add to Cart
SPECIAL ORDER: 10+ Quick view NR RACING Breather Hose (Tube), GX270 to GX390: Genuine Honda Genuine OEM Honda Breather Hose (Tube) for GX270 to GX390*Item #7 on diagram (pictured) $8.48 $7.57 Add to Cart
