RPS LH300 EFI 4x4 300cc Utility Four Wheeler ATVs

The RPS LH300 4x4 300cc Utility Four Wheeler is a rugged and reliable off-road vehicle designed to tackle tough terrains and demanding work environments with ease. Its shaft driven liquid-cooled 300cc four-stroke gas engine offers powerful performance combined with versatile 4WD capability. The Linhai 300-UT3 Fully Automatic 4x4 ATV is a perfect mixture of power and speed. Conquer the toughest jobs and most challenging terrain with the RPS LH300 EFI 4x4 300cc Utility Four Wheeler! Featuring a powerful EFI (Electronic Fuel Injection) engine, true 4x4 capability, and heavy-duty construction, this workhorse ATV delivers unmatched performance for farm work, hunting, property maintenance, and extreme off-road adventures. Built for serious riders who demand serious capability.

Ready for serious work and play? Explore our youth utility ATVs, compare with gas-powered youth ATVs, or discover all terrain vehicles for kids. For more options, check our RPS products collection.

Key Features

• Powerful 300cc EFI (Electronic Fuel Injection) engine
• True 4x4 capability with selectable 2WD/4WD
• Heavy-duty frame construction for extreme durability
• Top speed: approximately 50-55 mph
• EFI technology for reliable starting and optimal performance
• Automatic transmission with reverse
• Front and rear disc brakes for superior stopping power
• Heavy-duty suspension for rough terrain
• Large cargo racks for serious hauling
• Perfect for teenagers 16+ and adults
• Ideal for farm work, hunting, and property maintenance
• Free shipping included

Specifications

Vehicle specification
Overall Vehicle Size (L x W x H)	83x46x 50 in
Ground Clearance (inch)	7.2 in
Wheelbase (inch)	51 in
Weight with full equipment	618 lbs
Front / Rear Brakes	Two sides hydraulic disc
Parking Brake	Front / Rear hand brake, Foot brake
Front Tires	AT24X8-12
Rear Tires	AT24X11-10
Front Suspension	McPherson independent suspension
Rear Suspension	Socket centering structure
Fuel Capacity	3.8 gallons
Engine specification
Engine model	LH173MN
Engine Type	Carburetor, 4 Stroke, Single Cylinder, SOHC, Water Cooling
Bore & stroke	2.85*2.63 in
Volumetric Compression Ratio	10.3:1
Displacement	257cc
Drive System Type	2WD or 4WD
Ignition type	T.C.I
Start type	Electric
Maximum power (Kw /r/min)	22 HP @ 6500 RPM
Maximum Torque (Nm /r/min)	14.8 lb-ft @ 5500 RPM

RPS LH300 Four Wheeler Blog Posts

Frequently Asked Questions

Frequently Asked Questions

What makes the RPS LH300 EFI 4x4 different from other utility ATVs?

The RPS LH300 is a heavy-duty 300cc utility ATV featuring Electronic Fuel Injection (EFI), true 4x4 capability with selectable 2WD/4WD, 618 lb heavy-duty frame construction, 22 HP @ 6500 RPM power output, automatic CVT transmission with reverse, hydraulic disc brakes on all four wheels, McPherson independent front suspension, 3.8-gallon fuel capacity, aggressive all-terrain tires (AT24X8-12 front, AT24X11-10 rear), front and rear cargo racks, and rugged design for serious work and recreation. It combines power, reliability, and versatility for farm work, hunting, trail riding, property maintenance, and outdoor adventures.

What is Electronic Fuel Injection (EFI) and why does it matter on the LH300?

EFI (Electronic Fuel Injection) technology on the RPS LH300 provides superior fuel efficiency compared to carbureted engines, easier cold starts in any weather, smoother power delivery and throttle response, better performance at varying altitudes and temperatures, more consistent operation, reduced emissions, and less maintenance (no carburetor adjustments needed). EFI is more reliable, especially in demanding work environments and extreme conditions. Learn more about fuel injection technology benefits.

Is the RPS LH300 street legal?

The RPS LH300 is designed for off-road use only. It should be used on private property, farms, ranches, trails, hunting land, or designated off-road areas. It is not street legal and should not be ridden on public roads or highways. Always check local regulations and obtain necessary permissions before riding on any property.

What age is the RPS LH300 suitable for?

The RPS LH300 300cc utility ATV is designed for riders ages 16 and up. It's a full-size utility ATV with serious power (22 HP), 50-55 MPH capability, and heavy-duty construction best suited for experienced teenage and adult riders. The 618 lb weight and powerful engine require responsible handling and ATV experience.

How fast does the RPS LH300 go?

The RPS LH300 with its 300cc EFI engine can reach speeds of approximately 50-55 MPH, making it capable for both work and recreation. Actual top speed depends on rider weight, terrain, load, and conditions. This ATV prioritizes torque (14.8 lb-ft @ 5500 RPM) and pulling power for hauling and climbing over pure top speed, making it ideal for utility applications.

What is 4x4 and why is it important on the LH300?

True 4x4 (four-wheel drive) on the RPS LH300 means power is delivered to all four wheels when engaged, providing superior traction on mud, snow, steep hills, loose surfaces, rocks, and challenging terrain. The selectable 2WD/4WD system allows you to choose 2-wheel drive for normal conditions (better fuel economy) or 4-wheel drive for maximum traction when needed. This makes the LH300 ideal for work applications, hunting in remote areas, and serious off-road use where traction is critical.

What is the towing capacity of the RPS LH300?

The RPS LH300 is built as a utility ATV with substantial towing capacity perfect for hauling equipment, trailers, supplies, game, firewood, and work materials. The heavy-duty frame, powerful 22 HP engine, and 4x4 capability make it excellent for towing. Check the manufacturer's specifications for exact towing limits to ensure safe operation.

Does the LH300 have a cargo rack?

Yes! The RPS LH300 features heavy-duty front and rear cargo racks designed to carry tools, supplies, hunting gear, equipment, feed, fencing materials, and work essentials. The racks are built to handle serious loads for work and recreation, making the LH300 a true utility workhorse.

What is the weight of the RPS LH300?

The RPS LH300 weighs 618 lbs (with full equipment), reflecting its heavy-duty construction, powerful 300cc engine, robust frame, and utility-grade components. This substantial weight provides stability when hauling loads, towing trailers, riding on rough terrain, and working on steep slopes. The weight contributes to the ATV's durability and capability.

What is the weight capacity of the LH300?

The RPS LH300 is designed as a utility ATV with a robust heavy-duty frame capable of carrying adult riders plus substantial cargo. The combination of rider weight, cargo, and towing capacity makes it suitable for serious work applications. Check the manufacturer's specifications for exact weight limits including rider and cargo combined to ensure safe operation.

Does the RPS LH300 have suspension?

Yes! The RPS LH300 features a premium suspension system with McPherson independent front suspension and socket centering structure rear suspension designed to absorb impacts, provide a comfortable ride, maintain traction on rough terrain, rocks, ruts, and uneven surfaces. The suspension system is built for utility work and can handle the demands of hauling loads over challenging terrain.

What kind of brakes does the LH300 have?

The RPS LH300 is equipped with hydraulic disc brakes on all four wheels (front and rear), providing powerful, reliable stopping power even when hauling loads, towing trailers, or riding on steep terrain. The hydraulic disc brakes offer superior performance compared to drum brakes, with consistent stopping power in wet or muddy conditions. The ATV also features front/rear hand brake and foot brake for parking.

What size engine does the RPS LH300 have?

The RPS LH300 features a powerful 300cc (257cc actual displacement) 4-stroke EFI engine (model LH173MN) that delivers 22 HP @ 6500 RPM and 14.8 lb-ft torque @ 5500 RPM. The water-cooled, single cylinder, SOHC engine with 10.3:1 compression ratio provides excellent torque, reliability, and fuel efficiency for work and recreation.

Is the LH300 automatic or manual transmission?

The RPS LH300 features an automatic CVT (Continuously Variable Transmission) with high/low range and reverse, making it easy to operate while providing the low-end torque needed for hauling, towing, and climbing. No clutch or gear shifting required—just select your range and go. The automatic transmission is perfect for work applications where you need to focus on the task, not shifting gears.

What kind of tires does the RPS LH300 have?

The RPS LH300 comes equipped with aggressive all-terrain tires (AT24X8-12 front, AT24X11-10 rear) designed for maximum traction on mud, dirt, rocks, grass, snow, and challenging off-road conditions. The larger rear tires provide excellent traction for climbing and hauling. These utility-grade tires are built for durability and performance in demanding work environments.

Does the LH300 have lights?

Yes! The RPS LH300 features bright headlights and taillights for safe riding in low-light conditions, early morning farm work, evening property maintenance, or night hunting. The lighting system allows you to work and ride safely from dawn to dusk.

Is the RPS LH300 good for farm work?

Absolutely! The RPS LH300 is designed as a utility ATV perfect for farm work including hauling feed and supplies, checking fences and livestock, moving equipment and tools, spraying fields, plowing snow, pulling trailers, and general property maintenance. The 4x4 capability, cargo racks, towing capacity, and durable construction make it an invaluable farm tool that can replace or supplement a tractor for many tasks.

Is the LH300 good for hunting?

Yes! The RPS LH300 is excellent for hunting with its 4x4 capability for accessing remote hunting areas, cargo racks for hauling gear and game, towing capacity for game carts, utility design for navigating challenging terrain, and reliable performance in all conditions. It's a popular choice among hunters for getting to stands, retrieving game, and managing hunting property. The 3.8-gallon fuel tank provides extended range for all-day hunts.

What maintenance does the RPS LH300 require?

Regular maintenance includes oil changes every 50-100 hours or as recommended, air filter cleaning/replacement, brake inspections and adjustments, tire pressure checks, chain/drive system lubrication, coolant level checks (water-cooled engine), spark plug replacement, and periodic tune-ups. The EFI system requires less maintenance than carbureted engines (no carburetor adjustments). Following the maintenance schedule in the owner's manual ensures long-lasting performance and reliability.

Does the RPS LH300 require assembly?

Some assembly is required upon delivery. The RPS LH300 arrives approximately 80-85% assembled. Assembly typically includes handlebar installation, wheel attachment, brake adjustments, fluid checks, battery connection, and final safety inspections. Most customers can complete assembly with basic tools in 2-3 hours, or you can have a local mechanic or ATV shop assist. Detailed step-by-step instructions are included with your purchase.

What comes included with the RPS LH300?

Your RPS LH300 includes the utility ATV, owner's manual with maintenance schedule, tool kit, necessary assembly hardware, MSO (Manufacturer's Statement of Origin) for registration, warranty information, and safety guidelines. We also offer free nationwide shipping, free residential delivery service, 12-month manufacturer's internal engine replacement parts warranty, 30-day money-back satisfaction guarantee, free MSO/MCO processing, lifetime technical support, and real U.S.-based customer support.

Is there a warranty on the RPS LH300?

Yes! The RPS LH300 comes with a 12-month manufacturer's internal engine replacement parts warranty covering defects in materials and workmanship. We also offer a 30-day money-back satisfaction guarantee, lifetime technical support for as long as you own the ATV, and real U.S.-based customer support. Contact our customer support team for specific warranty details and coverage information.

Can I save money on the RPS LH300?

Yes! We're currently offering $701 off the regular price of $5,299, bringing it down to just $4,598. Plus, enjoy free nationwide shipping and free residential delivery service on this heavy-duty utility ATV! This makes the LH300 one of the most affordable 300cc 4x4 utility ATVs with EFI technology available.

Do you offer financing for the RPS LH300?

Yes, we offer various payment options and financing plans to make your purchase easier and more affordable. Check our checkout page for current financing options, payment plans, and promotional offers available for the RPS LH300. Our customer support team can also assist with financing questions.

What is your shipping policy for the LH300?

We offer free nationwide shipping on the RPS LH300 across the United States (lower 48 states). Your ATV will be carefully packaged and shipped via freight carrier with free residential delivery service included. Due to the 618 lb weight and size, the ATV ships on a pallet. Delivery times vary by location, typically 7-14 business days. You'll receive tracking information once your order ships.

Can I return the LH300 if I'm not satisfied?

We want you to love your new utility ATV! We offer a 30-day money-back satisfaction guarantee. If you're not completely satisfied with your RPS LH300 for any reason, contact our customer support team within 30 days of delivery to initiate a return. Please review our complete return policy on our website or contact our customer support team for details.

What safety gear do you recommend for the RPS LH300?

We strongly recommend wearing a DOT-approved helmet, goggles or face shield, gloves, over-the-ankle boots, long pants, long-sleeve shirt or jacket, and protective gear. For work applications, consider high-visibility clothing. Safety should always be the top priority when riding ATVs. Consider taking an ATV safety course before riding.

Can beginners ride the RPS LH300?

The RPS LH300 is a powerful 300cc utility ATV with 22 HP and 50-55 MPH capability, making it best suited for riders ages 16+ with some ATV experience. New riders should start slowly in open areas, take an ATV safety course, practice basic controls, and gradually build their skills before tackling challenging terrain or work applications. The automatic transmission makes it easier to learn than manual ATVs.

Where can I get the LH300 serviced?

Most ATV repair shops, powersports dealers, and small engine mechanics can service the RPS LH300. The Linhai engine is well-known with good parts availability. Basic maintenance like oil changes, air filter replacement, and brake adjustments can also be performed by mechanically-inclined owners following the owner's manual. We provide lifetime technical support to assist with any questions.

Why choose the RPS LH300 over other utility ATVs?

The RPS LH300 offers an unbeatable combination of EFI technology for reliability, true 4x4 capability for maximum traction, 300cc power (22 HP) for serious work, heavy-duty construction (618 lbs), automatic transmission for ease of use, hydraulic disc brakes for safety, and exceptional value at $4,598 (save $701). It's designed for serious work and recreation at a price that won't break the bank, making it perfect for farmers, hunters, property owners, and outdoor enthusiasts.

What colors is the RPS LH300 available in?

The RPS LH300 is currently available in Red, Blue, Camouflage, and Black color options, allowing you to choose a style that matches your preference or blends with your environment for hunting. All colors feature the same specifications and performance. Check our in-stock inventory for current color availability.

How do I contact customer support about the RPS LH300?

Our customer support team is here to help with any questions about the RPS LH300, assembly instructions, maintenance guidance, work applications, riding tips, parts ordering, or technical support. We provide lifetime technical support for as long as you own the ATV and real U.S.-based customer support via phone, email, or chat. Contact us through our website and we'll ensure you have a great experience with your new utility ATV!

Is the RPS LH300 currently in stock?

Yes! The RPS LH300 EFI 4x4 300cc Utility ATV is currently in stock in Red and Blue colors and ready to ship. Order today with our special $701 discount, free nationwide shipping, and 30-day money-back guarantee! Check our in-stock inventory for current availability by color.

What's Include

🚚 Free Nationwide Shipping anywhere in the United States

🏠 Free Residential Delivery Service

🛠️ 12-Month Manufacturer's internal engine Replacement Parts Warranty

💯 30-Day Money-Back Satisfaction Guarantee

📄 Free MSO/MCO Processing

🔧 Lifetime Technical Support for as long as you own the machine

🇺🇸 Real U.S.-Based Customer Support