TrailMaster Challenger 4-300X EFI UTV Chrome Rims, Bimini Top, Full roll Cage, Light Bar, Brush Guard. Independent Rear

Some large items like a 4-seater UTV/GO KART or weighing over 600 pounds cannot be delivered to your home and may require terminal pickup from the nearest freight terminal. Under these circumstances, the freight company will place the item on your flatbed or trailer. In some rare areas, there may be a surcharge for home delivery or other services.

 IF YOU ARE OVER 6'2 inches tall, this unit may not fit your needs.

The Challenger 300 EX EFI 4 Seat has a long list of important safety features, starting with its roll cage and hydraulic disc brakes. There's a throttle limiter control, which allows you to limit speeds down to around ten mph. Four-point seat belts are similar to the ones found on the larger UTVs. The parking brake is manually operated with a pull lever between the seats.

This unit comes standard with a full lighting package. headlights, tail lights, blinkers, and brake lights. 

The Challenger 300EX comes with all the extras: LIGHT BAR, BIMINI TOP, WINDSHIELD, MIRROR PACKAGE, ALLOY RIMS, and FRONT BRUSH BAR.   There is even an optional lightweight winch, SNOW PLOW, for sale through Trailmaster. 

Ergonomically, the Challenger is on point for its intended teen or adult audience. Adults up to about 6'2" fit comfortably in this unit. The bucket seats are similar to those found in the larger UTVs, offering a low sit-in feeling. Adjustable driver seat: pedal to seat back adjustable from 38" to 43". 

Power is provided by an 18.8 HP water-cooled, four-stroke engine. The engine is an off-road specific engine, made for Trailmaster, and all Challengers are fully automatic (CVT),  featuring forward, neutral, and reverse, selected by a lever located between the seats.

The advanced suspension allows you to tackle all types of terrain.  Braking is handled by dual hydraulic disc brakes. The brakes offer excellent stopping power. With the adjustable seat and steering, and throttle stop on the gas pedal, the kids can take a turn 

Large tires with 22X7-10 in the front and 22X10-10 in the back. 

Adjustable heavy-duty front and rear shock absorbers, Rack and pinion steering wheel, Front and rear hydraulic disc brakes, 4-point rear swing arm, Parking brake, rear storage area behind the seats.  A lightweight rear hitch comes standard.  

This unit comes standard with a full lighting package. headlights, tail lights, blinkers, and brake lights.

CA customers: this item is NOT CARB approved, but you may use it on your private land.

 revised 08/29/2025 BL 

Our Company Warranty Policies
Your satisfaction is our #1 goal. We strive to provide our customers with the highest level of customer service and support we can. We strongly suggest our customers read the following information thoroughly. If you have any questions about any of our or the manufacturers policies, please feel free to email us or call 1-877-667-6289.
If you need parts at the bottom of our home page you will find “Parts Request or https://motobuys.com/pages/part-request = simply fill out the form and click submit.
For Tech Support: https://motobuys.com/pages/technical-supports simply fill out the form and click submit
THE MANUFACTURERS WARRANTY COVERS PARTS, ENGINE ONLY FOR ALL PRODUCTS AS FOLLOWS:
OFF ROAD: ATV'S, UTV'S, BUGGIES, GO CARTS AND DIRT BIKES offer 3 MONTHS PARTS, 6 MONTHS ENGINE WARRANTY, MOTOBUYS.com will supply new or rebuilt replacement parts in exchange for defective parts for a period of 3(three) months, as well defective engines for a period of 6(six) months from the date of purchase at no charge.
Buyers will need basic repair & basic setup skills such as using tools; replacing nuts & bolts, filters, light bulbs, fluids, adjustments, etc. If you don’t have this ability we suggest using a mechanic to assist you with your needs. Our tech support Hotline is available to assist you.
THIS LIMITED WARRANTY COVERS THE FOLLOWING PARTS ONLY:
ENGINE: All internal lubricated parts, i.e. Pistons, piston rings, piston pins, connecting rods, rod bearings, camshaft, camshaft bearings, timing chain, crankshaft, crankshaft main bearings, oil pump, water pump, valves, valve springs, valve guides, valve seats, valve lifters and valve push rods. Additionally, the engine head and cylinder will only be covered if damage is caused solely as a result of the mechanical failure of one or more internal lubricated components listed above. (Broken gears any damage from outside impacted is not covered warranty)
ENGINE CASE: The Engine case itself will only be covered if the damage caused was solely as a result of the mechanical failure of one or more of the internal lubricated components listed above. (Broken gears any damage from outside impact is not covered warranty)
DRIVE SYSTEM: All internal lubricated parts contained within the drive axle housing case, i.e. differential, differential gears, drive shaft, drive axles, CV joints, axle bearings, reverse gears and output shafts. The drive axle housing as well as the reverse gearbox housing, if damaged solely as a result of the mechanical failure of one or more or the internal lubricated components contained the drive axle housing will be covered. (Any bent, broken, or damage by outside impact is not covered warranty)
FUEL SYSTEM: For carburated vehicles; Carburetor, vacuum fuel pump, intake manifold, fuel tank and fuel petcock. For fuel injected vehicles; Fuel injectors, fuel pump, fuel rail and fuel pressure regulator.
ELECTRICAL: Stator, stator pickup, magneto, voltage regulator\ rectifier, CDI, starter relay\ starter solenoid, starter motor, coil, distributor assembly and injector relay.
COOLING SYSTEM: Radiator, radiator cap, thermostat, thermostat housing, temperature indicator switch, cooling fan motors; water pump and water pump housing.
BRAKES: Calipers, drum housings, drum brake linkage, reservoirs, rotors, and lines.
CHASSIS: Frame, swing arms, A-arms, steering controls, (if not caused by jumping or impact.)
TRANSMISSION (Automatic or Standard): All internal lubricated parts contained within the transmission case, i.e. flywheel, hydraulic shift linkage, kick start spindle, kick start secondary gear and transmission gears. The transmission case itself will be covered if the damage was solely as a result of mechanical failure of one or more of the internal lubricated components contained within the transmission case. (Improper shifting of gears by not coming to stop complete can cause damage to internal gears. (""This cause is not covered warranty"")


WHAT IS NOT COVERED: The following is a list of items not covered by the warranty policy. This list is not all inclusive and may be modified at any time. Batteries, Belts, Brakes and Brake Pads, Chains, Clutch, Foot peg mount, Hand Levers, Hoses, Lights, Mirrors, Plastic Body, Seats, Shocks, Spark Plugs, Tires, Transmission.
COVERAGE AND LIMITATIONS: Initial assembly and preparation must be preformed in accordance with the Consumer Motor Vehicle Delivery Preparation and Inspection Form that is provided by the manufacturer. Additionally, all work must be performed by a professional mechanic (i.e. engine repair shop, motorcycle shop, or local auto repair shop) or an authorized Dealer of the manufacturer to assure your vehicle is in good working condition. Upon completion, you must mail in the Consumer Motor Vehicle Delivery Preparation and Inspection Form signed by the technician that performed the service. You will need to provide proof of this service when filing a warranty claim, so (end user) must keep your receipts. Subject to the limitations stated in this agreement,
MOTOBUYS.com agrees (at its sole discretion) to replace a covered component if the covered component fails as a result of one or more of the internal lubricated parts within the component stated warranty period from the date of purchase, while the component has been used under the conditions and in the manner specified by its original manufacturer. Keep in mind these off-road units are built for recreational use only. Your claim may be denied under the following circumstances:
Misuse or abuse of the vehicle, i.e.
Jumping
Stunt riding
Modification of any kind
Racing
Riding at constant wide open throttle (over revving the engine)
Unit is used as a rental
Damage is caused by an accident
Product is used in a manner that it is not designed for
Rider abuse
Improper adjustment\operation of the clutch, i.e. dragging, causing premature burning of the
friction plates
Improper adjustment\operation of brakes. Driving with parking brake on.
Improper gear engagement, i.e. engaging reverse will moving forward
Improper maintainance, i.e.
Lack of routine maintenance
Repairs performed improperly,
Use of incorrect lubricants
Improper initial set up
Use of aftermarket parts for repair
The following items are not covered: Tires, rims, body panels, fuses, forks, shocks, gaskets, light bulbs, seats, CV Boots, oil filter, air filter, fuel filter, filters, clutch wear parts, cables, drive belt, chain, spark plug, any part made from rubber, belts, brake linings and/or pads, batteries, sprockets, external springs, clips, nuts, bolts and fasteners.
HANDLING OF WARRANTY CLAIMS:
FOR PARTS: All Parts warranty issues must be processed through https://motobuys.com/pages/part-request  or if directed by the manufacturer. You must produce a copy of your original invoice showing the model number, vehicle identification number and date of purchase on the invoice, as well as a copy of your Consumer Motor Vehicle Delivery Preparation and Inspection Form to warranty your product directly. All defective parts must be returned to MOTOBUYS.com or the manufacturer as directed for inspection and verification of defect. MOTOBUYS.com reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty.
FOR ENGINES: All Engine warranty issues must be processed through MOTOBUYS.com or if directed through the manufacturer of the unit purchased. In ether case, after obtaining an RMA number from MOTOBUYS.com, you will be provided with a return shipping label. The motor must be removed from the vehicle, safely packaged and shipped to our repair facility located at the address listed on the shipping label. MOTOBUYS.com or the manufacturer reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty.

Documents

[Assembly Instructions]

[challenger_utv_all_models_owners_manual]