Picking between two legends of the trail can be a tough call. You’re standing in front of two capable machines, maybe one’s a great deal on the used market and the other is a newer model with more bells and whistles. The polaris sportsman 800 vs 850 debate is one we see all the time, and for good reason—both are absolute workhorses.
You’ve probably asked yourself: Is the newer 850 really worth the extra cash? Or is the tried-and-true 800 the smarter buy for a DIY mechanic? You’re in the right place. We promise to cut through the forum noise and give you a clear, hands-on comparison from a mechanic’s perspective.
In this ultimate guide, we’ll tear down the key differences in engine performance, chassis and suspension, common problems to watch for, and what it really takes to keep each of these beasts running strong. Let’s get to it.
The Heart of the Beast: Engine & Drivetrain Showdown
At first glance, 50cc doesn’t sound like a massive difference. But how that power is made and delivered to the wheels is where you’ll find the biggest distinction between these two ATVs. This is more than just numbers; it’s about feel, reliability, and ease of maintenance.
The Proven Workhorse: Sportsman 800’s Parallel-Twin
The Sportsman 800 is powered by a 760cc, liquid-cooled, parallel-twin engine. This motor was a staple in Polaris’s lineup for years, and it’s known for being a torque-monster. It’s a pushrod engine, which is a simpler, older design.
What does this mean for you? It delivers fantastic low-end grunt, making it great for plowing snow, hauling firewood, or crawling over technical terrain. However, it can feel a bit buzzy at higher RPMs, and the heat management, especially on earlier models, can be an issue—you’ll feel it on your right leg.
The Modern Powerhouse: Sportsman 850’s SOHC Twin
The Sportsman 850 features a purpose-built 850cc, liquid-cooled, SOHC (Single Overhead Cam) twin engine. A key design change is that Polaris mounted this engine longitudinally (front to back) instead of transverse (side to side) like the 800.
This layout results in a much smoother power delivery and significantly less vibration. The SOHC design allows it to rev higher and more freely, giving it a sportier feel with more horsepower on tap. It also runs cooler and directs heat away from the rider more effectively. The benefits of polaris sportsman 800 vs 850 engine design are immediately noticeable in terms of refinement.
Drivetrain Differences: What It Means on the Trail
Both models use the Polaris On-Demand All-Wheel Drive (AWD) system, which is one of the best in the business. However, the 850’s longitudinal engine layout allows for a more direct and efficient transfer of power through the drivetrain.
This means fewer power-robbing right-angle gearboxes, which translates to better throttle response and potentially greater long-term durability. It’s a more refined system that feels a little more connected when you mash the throttle.
Ride & Handling: A Tale of Two Chassis
Power is nothing without control. The evolution from the 800 to the 850 brought about a complete chassis redesign, and this is arguably where you’ll feel the biggest upgrade. This section is a key part of our polaris sportsman 800 vs 850 guide.
The Classic Ride: Sportsman 800’s MacPherson Strut Front End
The Sportsman 800 uses a MacPherson strut front suspension. This is a simple, durable, and cost-effective setup that provides a decent ride for general trail use and utility work. It’s been a Polaris staple for decades.
The downside? It doesn’t handle high-speed bumps or aggressive cornering as well as a more modern setup. You’ll notice more body roll, and the steering can feel a bit less precise when you’re pushing it hard.
The Upgraded Comfort: Sportsman 850’s Dual A-Arm Suspension
The Sportsman 850 features a much-improved dual A-arm front and rear suspension. This design keeps the tire’s contact patch more consistent throughout the suspension travel, offering superior handling, stability, and a plusher ride.
Whether you’re hitting deep ruts or railing a corner, the 850 feels significantly more planted and confidence-inspiring. It soaks up bumps better and exhibits far less body roll. For riders who value comfort and performance on rough terrain, the 850 is the clear winner.
Ergonomics and Rider Comfort
The 850’s chassis isn’t just about suspension. It was designed to be narrower between the knees, making it more comfortable for active riding and long days in the saddle. The handlebars and overall rider position feel more modern and less utilitarian than the 800.
Common Problems with Polaris Sportsman 800 vs 850
No machine is perfect. Knowing what to look for, whether you’re buying used or maintaining your own ride, is crucial. Here are some of the common problems with polaris sportsman 800 vs 850 that we see in the shop.
Sportsman 800: Known Issues and Fixes
The 800 has been around a long time, so its weak points are well-documented and, thankfully, often have easy fixes.
- Starter Bendix: A very common failure point. If you hear a grinding or whining sound when trying to start it, the bendix is likely the culprit. It’s a relatively cheap part, but a bit of a pain to replace.
- Belt and Clutch Issues: The transverse engine layout can be tough on drive belts, especially if you have larger tires. Keep your clutches clean and inspect your belt regularly.
- Overheating: The radiator is prone to getting clogged with mud. Regular cleaning is a must. Some riders install aftermarket temperature gauges to keep a closer eye on things.
- Ball Joints and Bushings: These are normal wear items on any ATV, but the 800 seems to go through them a bit quicker. Check for play in the wheels regularly.
Sportsman 850: Common Gremlins to Watch For
The 850 is generally more reliable, but it has its own set of potential issues, especially on earlier models (2009-2012).
- Power Steering (EPS) Failures: Some early models had issues with the Electronic Power Steering unit. It’s an expensive fix if it fails out of warranty.
- Wiring Harness Chafing: Check the wiring harness, particularly around the steering column and frame points, for any signs of rubbing or wear. A little bit of protective loom can prevent major headaches down the road.
- A-Arm Bushings: Just like the 800, these are a wear item. Aftermarket options from brands like SuperATV or All Balls Racing can offer better longevity.
Your Ultimate Polaris Sportsman 800 vs 850 Care Guide
Proper maintenance is the key to longevity for either of these machines. Following a few polaris sportsman 800 vs 850 best practices will keep you on the trail and out of the shop.
Essential Maintenance: What Both Models Demand
Your owner’s manual is your bible, but here are the non-negotiables we preach at FatBoysOffroad.
- Regular Oil Changes: Use the correct Polaris-spec oil (like PS-4 Full Synthetic). Don’t cheap out here. Change it every 25-50 hours, depending on your riding conditions.
- Air Filter Cleaning: This is the lungs of your ATV. A dirty filter robs power and can let damaging dust into your engine. Clean and re-oil it after every dusty ride.
- Clutch and Belt Inspection: Regularly blow out your clutch housing with compressed air to remove belt dust. Check your belt for glazing, cracks, or flat spots.
- Grease Your Zerks: Both models have grease fittings on suspension and driveline components. A few pumps from a good grease gun after a wet or muddy ride pushes out water and keeps things moving freely.
A Note on Sustainable and Eco-Friendly Riding
Being a responsible rider is part of the gig. When performing maintenance, think about a sustainable polaris sportsman 800 vs 850 approach. Always dispose of used oil, coolant, and other fluids at a designated recycling center. On the trail, practice Tread Lightly principles—stay on marked trails and avoid sensitive areas to ensure our riding spots stay open for years to come. These simple eco-friendly polaris sportsman 800 vs 850 habits make a huge difference.
The Final Verdict: Which Sportsman Should You Buy?
So, after all this, which one gets the nod? The honest answer is: it depends entirely on you. Here are some final polaris sportsman 800 vs 850 tips to help you decide.
Choose the Sportsman 800 If…
- You’re on a tighter budget. You can get a lot of machine for your money with a used 800.
- You primarily do utility work. Its low-end torque is fantastic for towing and plowing.
- You are a confident DIY mechanic. The 800 is simple to work on, and parts are cheap and plentiful.
- Your riding is mostly low-speed trail cruising. The older suspension is perfectly adequate for less demanding rides.
Choose the Sportsman 850 If…
- Ride comfort and handling are your top priorities. The dual A-arm suspension is a game-changer.
- You ride aggressively or cover long distances. The smoother, more powerful engine and better ergonomics reduce fatigue.
- You want a more modern, refined machine. From the engine to the chassis, the 850 is a significant step up in technology.
- You prefer to spend more time riding and less time wrenching. While not immune to issues, a well-maintained 850 is generally a more reliable platform.
Frequently Asked Questions About Polaris Sportsman 800 vs 850
Is the Sportsman 850 really that much more powerful than the 800?
On paper, the horsepower difference is around 20 HP (approx. 50hp for the 800 vs. 70hp for early 850s). The bigger difference is in how it delivers that power. The 850 is smoother, revs faster, and feels more responsive and “sporty” throughout the entire RPM range.
Which model is easier for a DIY mechanic to work on?
The Sportsman 800 is generally considered easier for the average DIYer. Its simpler pushrod engine and transverse layout are familiar and have been around for a long time. Parts are everywhere and often cheaper. The 850 isn’t overly complex, but things are a bit more compact, and systems like the EPS add another layer of technology.
Can I use the same accessories on both the 800 and 850?
No, not for most things. Because the chassis, body plastics, and rack systems are completely different, accessories like bumpers, winches, skid plates, and rack extenders are model-specific. Always double-check fitment before buying.
What’s a fair price for a used Sportsman 800 or 850?
Prices vary wildly based on year, condition, hours, and location. Generally, expect a clean, well-maintained Sportsman 800 to be in the $3,500-$5,500 range. A comparable Sportsman 850 will typically start around $5,000 and go up significantly from there, especially for newer models with power steering.
Ultimately, whether you choose the legendary 800 or the modern 850, you’re getting a capable and fun machine. Do your homework, perform a thorough inspection, and pick the one that best fits your budget and riding style.
Happy trails, and wrench safe!
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