300G MidMount Zero-Turns
Riding mowers starting at $15,195.All prices USD. All prices are Manufacturer's Suggested Retail Price (MSRP). MSRP excludes tax, dealer fees, and optional equipment. Models may be pictured with optional equipment.
Equipped with EFI engines that provide reliable hot and cold weather starts, reduced engine exhaust emissions, fewer fuel-related service issues, and more.
EFI engines.
300G MidMount zero-turn riding lawn mowers feature robust, efficient EFI engines that minimize fuel-related service issues, reduce emissions, and offer powerful performance.
Closed-loop electronic fuel injection continually adjusts fuel ratio to use less fuel and provide reliable hot and cold starts, reduced exhaust emissions, and fewer fuel-related service issues. Featuring either V-twin B&S Vanguard® OHV gasoline engines with vertical crankshaft and pressure lube or a V-twin Kawasaki® gasoline engine, the 300G series mowers are designed to provide efficient power and extend service life. Engine models feature automotive-style plug-in diagnostics and facilitate faster, more precise service.
Design-matched G4/G5 transmission.
Design-matched Hydro-Gear® tansmissions bring smooth, responsive, all-pro performance to the 300G zero-turn MidMount™ mowers.
Hydro-Gear® ZT4400 and ZT5400 transmissions are design-matched to the mower, feature self-contained, heavy-duty transaxles, and are engineered to transmit more power to the cutting deck. Integrated cooling fans and 1-3/8-inch axles extend service life, while the overall design of both drive systems provides best-in-class transmission fluid change intervals.
Nothing compares to a DuraMax Deck.
We didn't settle for flimsy, stamped steel decks. We spent years building the toughest, most durable deck around.
All of our mower decks—standard and DuraMax®—are made from the same robotically welded, heavy-gauge, formed steel and are far superior to the flimsy plastic or stamped-steel construction you find elsewhere. We've added an extra layer of heavy-gauged formed steel to our DuraMax deck that sits over the deck’s leading edge for even more durability and impact protection. The geometry of the formed steel is seven times stronger than a strip of flat steel. Our extra deep, 5.5-inch decks are made from years of innovative airflow research and feature specially-designed cutting chambers that deliver enhanced airflow for a better cut quality. Spindles are anchored to double layers of robotically-welded, formed steel in a 6-bolt pattern to spread the force of impact for greater strength in commercial applications. Triple-strength decks are nearly 1-inch thick in stress zones with durable Sentry™ spindles mounted on spindle planes that are more than 25% thicker than 1/4 inch. Spindle guards shield the housing and seal lower bearings from grass wrap and dirt ingestion. High-impact, high-rotational-speed bearings with durable seals extend spindle life. Designed to let you change the way you mow without changing decks, Grasshopper decks let you easily convert between standard Side-Discharge, Down-Discharge Mulching, and PowerVac Collection. Easily reach belts and grease points, plus make quick, simple work out of your routine zero-turn mower maintenance. Every deck comes with a built-in multi-ply rubber striping belt that combs the grass into crisp uniform stripes as you mow without cumbersome rollers that catch obstacles or gouge turf.
300G Series Zero-Turn Riding Mowers
Other reasons to buy.
MARBAIN® Cutting Blades
MARBAIN® cutting blades are 1/4-inch thick and are through-hardened to hold their edge longer, delivering a better cut and twice the life of aftermarket blades.
Ultimate Operator Station
The Grasshopper Ultimate Operator Station™ is centered around a deep-cushioned seat featuring coil-spring suspension and padded lumbar support. The seat is iso-mounted to reduce vibration and covered in cool, comfortable Cordura® fabric that won't tear or crack with extended use. It also features easy-to-reach operational controls, including the throttle, ignition, and push/pull PTO switch. Plus, QuikAjust Tilt™ dual levers with a 9-inch adjustment range allows for a more custom fit and will automatically return to neutral from either forward or reverse.
Low Center Of Gravity
300G models have a single-fill fuel tank mounted beneath the seat, lowering the center of gravity and allowing the machine more traction and stability.
Steel Build
A robotically welded, high-grade US steel frame and formed steel I-beam reinforcement, combined with the all-steel DuraMax deck, prove that we put metal where it matters—everywhere.
ROPS
All 300G Series mowers come standard with a low-profile Roll Over Protection System (ROPS) and adjustable seatbelt for safe operation.
QuikAjust Tilt™ Dual Levers
QuikAjust Tilt™ steering levers offer a 9-inch range of adjustment for a more custom, comfortable operator experience. No tools needed.
Hydraulically Dampened Control Levers
The hydraulically dampened control levers deliver a smooth, responsive ride and return to neutral when released from both forward and reverse.
DropPin Height Adjustment
DropPin™ Height Adjustment makes cutting height changes fast and simple by using a foot pedal and drop pin to raise and lower the deck between 1 and 5 inches.
Reduced Maintenance
300G Series mowers have only two Access-Eze™ lubrication points, which cut maintenance time down by up to 95%. Additionally, self-tensioning belts minimize costs and labor associated with routine maintenance.
Superior Warranty
Commercial Use: 328G4 has a 3-year or 1,000-hour (whichever comes first); limited warranty: First two years covering parts and labor, last year covering parts only. 337G5 has a 3-year or 1,250-hour (whichever comes first); limited warranty: First two years covering parts and labor, last year covering parts only. Residential Use: 4-year or 800-hour (whichever comes first); limited warranty: First two years covering parts and labor, last two years covering parts only.
Compare the lineup.
See full specs
328G4 EFI
Starting at $15,195810-cc Vanguard®, V-Twin, Electronic Fuel Injection Gasoline Engine
52", 61" Deck sizesHydro-Gear ZT-4400 Transmission6.1 Max Acres Per HourDuraMax DeckGasBelt Driven13 gal. Fuel capacity
334.5-G4 KW EFI/ETC
Starting at $16,710822-cc Kawasaki® FX 850V EVO, V-Twin, Electronic Fuel Injection Gasoline Engine
52", 61" Deck sizesHydro-Gear ZT-4400 Transmission6.1 Max Acres Per HourDuraMax DeckGasBelt Driven13 gal. Fuel capacity
340G5 EFI/ETC
Starting at $17,565993-cc Vanguard®, V-Twin, Electronic Fuel Injection Gasoline Engine
61", 72" Deck sizesHydro-Gear ZT-5400 Transmission7.2 Max Acres Per HourDuraMax DeckGasBelt Driven13 gal. Fuel capacity
Featured Add-Ons.
Fully adjustable operator seat is iso-mounted to reduce vibrations, has padded lumbar support, and is covered in breathable Cordura® fabric that won't tear or crack.
Fold-down roll bar allows you to easily store the mower and load it onto low-clearance trailers.
Made from diamond-plated aluminum, this canopy mounts to the ROPS for added sun protection and all-day comfort.
Footrest addition raises the platform an extra 2 inches once installed to provide a more comfortable ride for smaller operators.
Up To $800 off during Fall Reserve.
Reserve your new mower this fall with $400 down and save up to $800 when we deliver it next spring.
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Questions about the 300G Series?
FAQs about Grasshopper 300G Series MidMount zero-turn lawn mowers.
Yes, the 300G Series is built for commercial mowing crews that need dependable gas-powered performance. With EFI engines, DuraMax decks, commercial transmissions, and operator-focused controls, it's made for long mowing days and demanding turf conditions.
EFI stands for electronic fuel injection, which helps deliver reliable hot and cold weather starts. On the 300G Series, EFI also helps reduce exhaust emissions and lower the risk of fuel-related service issues.
The Grasshopper 300G Series focuses on EFI gas-engine performance, while the 300 Series offers gas and diesel options. Choose the 300G if you want premium EFI gas power, or choose the 300 Series if you want the option of Grasshopper’s lowest-cost diesel MidMount mower.
The 300G Series includes Grasshopper’s Ultimate Operator Station, QuikAjust Tilt dual levers, and hydraulically dampened control levers. These features help improve control, reduce vibration, and keep operators more comfortable during long mowing days.
Grasshopper 300G models can mow up to 7.2 acres per hour, depending on the model, deck size, and mowing conditions. That makes the 300G Series a strong fit for commercial crews looking to improve route efficiency.