Are you struggling to figure out if the John Deere X350 is the right lawn tractor for your yard, or if you should look at other models in the lineup? While the X350 offers a premium Kawasaki engine and a standard K46 transmission perfect for flat yards, models like the X370 and X380 upgrade to heavy-duty, serviceable transaxles and power steering for steep hills and heavy towing. In this guide, we break down exactly how the John Deere X350 compares to the S240, X330, X370, and X380. We will help you find the good match for your lawn care needs.
Quick Comparison Overview: John Deere X350 vs X330, X370, and X380
To give you a clear baseline, we have compiled the core specifications of these popular models. This table highlights the primary mechanical differences, helping you see exactly what changes as you move up the product line.
| Feature | John Deere X330 | John Deere X350 | John Deere X370 | John Deere X380 |
|---|---|---|---|---|
| Engine Model | 44J6 Cyclonic | FS600V (Kawasaki) | FR651V (Kawasaki) | FR691V (Kawasaki) |
| Engine Power | 20 hp (14.9 kW) | 18.5 hp (13.8 kW) | 21.5 hp (16 kW) | 23 hp (17.2 kW) |
| Cutting Width | 42 inches (107 cm) | 42 inches (107 cm) | 42 inches (107 cm) | 48 inches (122 cm) |
| Transaxle Type | K46 hydrostatic | K46 hydrostatic | K57 hydrostatic | K58 hydrostatic |
| Forward Speed | 0-5.5 mph | 0-5.5 mph | 0-5.8 mph | 0-6.2 mph |
| Overall Length | 72 inches (182.9 cm) | 72 inches (182.9 cm) | 72 inches (182.9 cm) | 72 inches (182.9 cm) |
| Width (w/ mower) | 50.5 inches (128 cm) | 50.5 inches (128 cm) | 50.5 inches (128 cm) | 62.5 inches (159 cm) |
John Deere S240 vs X350: Entry-Level Meets Standard X Series
On paper, these two units share a lot of DNA. They both utilize a highly regarded V-twin engine and the exact same K46 hydrostatic transaxle. However, the true value of the X350 lies in its upgraded chassis and long-term durability.
The S240 is a fantastic entry-level option for flat yards around one acre. It comes with a standard 3-year or 200-hour warranty.
- In contrast, the John Deere X350 steps up into the premium category with a 4-year or 300-hour warranty. This extra year of coverage offers great peace of mind.
- Beyond the warranty, the X350 features a heavier frame, a more modern dashboard with better electronics, and front wheel bearings instead of the basic bushings found on the S240.
- If you have a lot of trees and need to manage heavy leaf fall, the stronger deck on the X350 is better suited for heavy-duty bagging systems. Mulching leaves works well for small amounts, but for thick oak leaves on a long driveway, the X350 provides the structural support needed for a proper hopper system.
John Deere X330 vs X350: Cyclonic vs Kawasaki
The main difference between the John Deere X330 and X350 is the engine. Both use the same 72-inch frame, 42-inch Accel Deep mower deck, and K46 transmission.
- The X330 has a 20 hp Cyclonic engine. The X350 runs an 18.5 hp Kawasaki FS600V. You’ll see the X330 lists more horsepower and costs less. But raw hp isn’t everything. For mowing work, torque and how long the engine lasts matter way more.
- The Kawasaki engine on the X350 is well known for smooth operation and long service life. It also has a 15-amp charging system, vs 14 amp on the X330. That helps if you use electric-powered attachments. Plus, the X350 comes with a one-piece hood, so it’s easier to get in for maintenance.
For mowers at this price point, we think it’s worth spending a bit more. You get the trusted Kawasaki reliability, and it holds its value better when you sell later.
John Deere X350 vs X370: Power Steering and Serviceable Transmissions
Moving up the product line, the comparison between the John Deere X350 and the X370 introduces major mechanical upgrades. While the X350 is an excellent machine, the X370 adds features that drastically improve operator comfort and machine longevity. The most discussed difference is the K46 vs K57 transmission.
- The X350 uses a sealed K46 transaxle. This means changing the fluid requires removing the entire unit from the tractor, which is a hassle for most homeowners.
- The X370, on the other hand, features the K57 transmission. This upgraded transaxle is fully serviceable, meaning it has a drain plug and a replaceable filter. If you plan on pulling heavy utility trailers full of dirt or mulch, the K57 will handle the abuse much better and last much longer.
Additionally, the X370 includes power steering and a hydraulic deck lift. “Once you experience power steering on a lawn tractor, you will never want to go back. It makes navigating around trees and tight corners completely effortless.” If you have shoulder issues, want a premium high-back seat, or plan to use a snow blade in the winter, the X370 is worth every penny of the upgrade cost.
John Deere X350 vs X380: Upgrading for Slopes and Heavy Duty Tasks
If you have a larger property—around 1.5 to 3 acres—with noticeable hills, you need to look closely at the X380. The John Deere X350 is perfect for flat or gently sloping yards, but steep grades require heavier equipment. The X380 is widely considered the best riding mower for hills in this specific lineup.
- Transmission: It ditches the K46 in favor of a heavy-duty K58 transmission. The K58 provides more torque and runs cooler under heavy loads, preventing the internal wear that happens when climbing 15-degree slopes.
- Engine: Along with the transmission, the X380 gives you a larger 23 hp engine, bigger rear tires for superior traction, and a wider 48-inch mower deck to cut down your mowing time.
- Seat: It also includes the upgraded cut-and-sew seat for maximum comfort during long mowing sessions. While the price jump from the X350 to the X380 is noticeable, it is necessary if your yard features steep inclines or if you frequently tow heavy aerators and carts.
Which One Is Best for You?
The best model for you depends on your yard size, terrain, and budget.
- S240: A good choice for a flat, one-acre yard if you want to keep costs down.
- X350: A solid option for yards up to two acres, with a Kawasaki engine and reliable long-term performance.
- X370: Worth considering if you want easier steering and a serviceable transmission.
- X380: A better fit for larger properties where you need a wider deck, good traction on hills, and towing capability.
No matter which tractor you choose, maintaining your equipment is the key to a long lifespan. As an aftermarket parts supplier, we provide high-quality products at affordable prices. We carry a vast inventory with wide compatibility for many heavy equipment brands, ensuring you can always find the exact filters, belts, and blades you need to keep your tractor running like new.
Final Thoughts
The John Deere X350 is still the top pick for home lawn tractors. It hits a great balance of nice features, a tough engine, and solid warranty. Models like the X370 and X380 are good upgrades if you have steep hills or pull heavy loads, but the X350 works more than well enough to leave a clean cut for most homeowners. No matter which tractor you get, stick with routine maintenance to make it last. FridayParts sells low-cost replacement parts for many equipment brands. We’ve got filters, belts and mower blades to keep your tractor running great.
