The Banshee 350 has been discontinued since 2006 — but its legend never died. If you just picked one up, here are the first upgrades every new owner should bolt on, system by system.
In This Guide
1. Engine & Lubrication — Oil Dipstick w/ Temp Gauge + Stator Cover
2. Cooling System — Silicone Hoses + Coolant Reservoir Tank
3. Drivetrain — Chain Support Guide Slider
4. Ergonomics & Controls — Foot Pegs, Brake Pedal, Kickstarter
5. Steering & Suspension — Tie Rods & Ball Joints
6. Lighting & Safety — LED Tail / Brake Light
The Banshee is one of the greatest two-stroke ATVs ever built — a raw, screaming, reed-valve monster that still embarrasses modern machines on the right terrain. But let's be honest: most of the ones on the market today are pushing 20–30 years of hard miles. The factory rubber is cracking, the plastic parts are fatigued.
This guide covers 10 key upgrades organized by system — to make it reliable, safer, and more fun to ride.
01. Engine & Lubrication
Know Your Engine Before It Knows You
The Banshee's twin-cylinder two-stroke runs hot and hard. The OEM oil dipstick is a bare aluminum plug that gives you zero insight into what's going on thermally inside the engine. On hot summer days or during extended dune sessions, oil temperature can creep into dangerous territory before you ever sense trouble. And the factory stator cover? Solid aluminum — meaning a crash or a rock strike can crack it, and you won't know until oil is puddling under your quad.
Oil Dipstick w/ Rotatable Temp Gauge
You'll Actually Know What's Happening in There
Thread this in and you've got a live 0–150°C oil temp gauge sitting right at the fill port. Rotate the dial to whatever angle reads cleanest from your riding position — it stays put. The damped needle holds steady under engine vibration, so you're reading a number, not chasing a bouncing pointer. You'll know exactly when to back off and when you've got headroom to push. The 24mm wrench port means oil changes are no different than before.
Engine Stator Cover
Check the Stator Without Touching a Wrench
With the clear inspection window you can verify the stator and chain condition at a glance — no removal, no guesswork. The split-cover design makes cleaning and routine service noticeably faster, and the poly chain guard keeps things quieter during operation. It's the kind of upgrade that pays off quietly over time: fewer surprises during maintenance, less time with the engine torn down.
02. Cooling System
Stop Your Cooling System From Becoming the Weak Link
The Banshee is liquid-cooled — a rarity for its era — which is one reason it handles sustained hard riding better than most two-strokes. But that cooling system is only as good as its oldest hose and its most corroded tank. Original rubber radiator hoses degrade from the inside out: you can't see micro-cracks and internal flaking until a hose fails and coolant dumps on your exhaust. The factory coolant reservoir is a basic plastic bottle that makes checking levels a guessing game and doesn't age gracefully under hood heat cycles.
Silicone Radiator Hose Kit w/ Heat Shield Adapters
A Cooling System You Can Stop Worrying About
Once these are on, the hoses become the last thing you'll think about. The 3-layer silicone handles 300°C continuous — well above anything the Banshee throws at it — and the included heat shield adapters keep exhaust heat away from the sections most exposed to pipe contact. All four OEM hoses are replaced in one go.
Coolant Reservoir Overflow Tank
Checking Coolant Takes Two Seconds Now
The clear sight window lets you read the coolant level without opening anything — a glance before you ride, done. The fully welded billet aluminum body won't cloud, crack, or weep over heat cycles the way the plastic original does, and the threaded cap stays sealed under vibration.
03. Drivetrain
Protect the Chain That Delivers Every Horsepower
The original chain guide sliders are made to a factory cost target, not a durability target. After a few thousand hard miles, you'll see wear that translates into chain slap, noise, and accelerated sprocket wear.
Chain Support Guide Slider Kit
Quieter Drive, Longer Chain and Sprocket Life
The nylon slider lets the chain run smoothly without the metallic scraping that wears into both the guide and the chain side plates over time. The aluminum frame behind it handles rocks and debris without flexing or cracking under impact. The result is a noticeably quieter drivetrain and chain wear that slows down significantly — especially if you're riding in sand or gritty terrain.
04. Ergonomics & Controls
Ride Longer, Harder, and With More Control
The Banshee was designed in the late '80s when ATV ergonomics were more of an afterthought than a science. Stock foot pegs are narrow, which means your feet can slip off during aggressive riding or in muddy conditions. The rear brake pedal is fixed — a problem if you're tall, short, or riding in boots with thick soles. And if you've ever kicked a broken or bent kick-start lever on the side of a trail, you know exactly why this one matters.
Extended Foot Pegs Rest Pedals
Your Feet Stay Where You Put Them
The wider platform gives your boots a proper base — you stop micro-adjusting your footing and start focusing on the ride. The grip studs bite through mud, sand, and wet conditions without tearing up your boots. On longer runs you'll notice less lateral foot fatigue; the wider stance just lets your legs sit more naturally. One of the highest-impact ergonomic changes you can make for what it costs.
Adjustable Rear Brake Pedal Lever
The Right Height for Every Terrain, Every Stance
On flat-out dune runs you're sitting back, legs extended — the pedal needs to be right there without you hunting for it. On tight trails you're shifting your weight forward, standing on the pegs, body position constantly changing. A fixed pedal is a compromise that doesn't fully work for either. With 10mm of adjustment you can dial the height to match how you're actually riding that day — and when the terrain changes, so can your setup.
Kickstarter Starter Pedal Lever
Every Kick Lands and Counts
The non-slip tread surface keeps your boot locked through the full stroke — in gloves, in the cold, in the wet. The billet aluminum resists the lateral bending that eventually cracks the spline area on worn OEM levers. It's not exciting, but a kick-start lever that works every time, in any conditions, is the kind of thing you only appreciate when you've had one that didn't.
05. Steering & Suspension
Your Steering Is Only as Accurate as Your Tie Rods
Tie rods and ball joints are the mechanical link between your handlebars and your front wheels. On a 30-year-old machine, even OEM-quality rods that started life fine are now worn at the ball joints — you feel it as vague steering, a slight shimmy at speed, or the need to correct your line on flat terrain. These are not expensive parts, but worn tie rod ends are a genuine safety issue. This is one upgrade you want to make proactively, not reactively after you stuff the front end into a berm.
Upgraded Tie Rods Ball Joints Kit
Steering That Goes Where You Point It
With fresh chromoly ball joints and CNC aluminum rods in place, the vagueness disappears — inputs are direct, the front end tracks cleanly, and you stop second-guessing your line. The heat-treated chromoly ends hold their tolerances far longer than OEM under the lateral loads ATV riding generates, so this isn't a fix you'll be repeating in two seasons. The aluminum rods also trim a small amount of unsprung weight up front, which sharpens turn-in response in a way you'll feel on tighter trails.
06. Lighting & Safety
Be Seen. Especially When Slowing Down.
The Banshee's stock tail light is an incandescent bulb designed in the 1980s. By now, many of these are dim, intermittent, or outright dead. If you ride anywhere near other people — dunes, tracks, group trail rides — a non-functional brake light is a real safety liability. An LED swap is the single fastest upgrade on this list, taking under 15 minutes, and the visibility difference is dramatic.
Plug & Play LED Rear Brake Tail Light
Running Light and Brake Light. Both. Always.
Most Banshee tail light upgrades solve one problem and create another — the running light stops working, or it only plays nice with one wiring setup. This one supports both AC and DC power systems, so it works correctly regardless of which configuration your machine is running. More importantly, the running light and brake light operate simultaneously and independently: you're visible at all times, and riders behind you get a clear, bright brake signal the moment you slow down — not a single bulb doing double duty at different brightness levels.
The Banshee is worth maintaining right. It's one of the last great raw-feeling two-stroke ATVs, and parts availability for it has never been better thanks to the strong aftermarket community. Every upgrade on this list solves a real problem on these machines — aged rubber, worn controls, zero thermal visibility, steering slop — and every one is a direct replacement that doesn't require modification or fabrication.
Start with the cooling hoses and reservoir if your machine has unknown service history. Add the oil dipstick temp gauge and the tie rods next. Then work through the ergonomic pieces as you settle into your riding position. By the time you've gone through this list, you'll have a Banshee that not only runs as good as it ever did — it'll run better, smarter, and with far fewer surprises mid-ride.
