X-TORQ® ENGINE — 4 HP, 11.7 LBS
The 50.1 cm³ X-Torq engine delivers a full 4 horsepower with 3.15 Nm of torque, wrapped in a magnesium crankcase. The result is a power-to-weight ratio the rest of the 50cc class is still chasing.
1 / 6
Husqvarna XP® Professional Series550 XP Mark II
550 XP Mark II
Chainsaw.
The professional 50cc benchmark. 4.0 hp, 11.7 lbs and AutoTune™ — built for tree care, forestry and anyone who cuts for a living.
$649.00$749.0013% OFF · SAVE $100.00
4.9· 186 reviews0% financing offer available
In stock · Ships from U.S. warehouses
Free shippingHusqvarna limited warranty
Select configuration:
550 XP Mark II — 18 in bar
$649.00
$749.00
50.1 cc X-Torq engine, 18-inch bar and X-Cut chain included, AutoTune™ and LowVib® anti-vibration.
- 50.1 cc X-Torq® engine — 4.0 hp at just 11.7 lbs
- AutoTune™ — automatic engine tuning, no carb adjustments
- 18-in bar · .325-in X-Cut chain · inertia chain brake
- Air Injection™ — filter stays clean up to 97% longer
- Magnesium crankcase and excellent cooling capacity
1
40 viewing now
9 sold today
Just ordered from Roanoke, VA · 7 min ago
Fast freight scheduling
Free freight · tracked delivery
Free Shipping
All 50 states
100-Day Trial
Return free
2-Yr Warranty
Factory-backed
Price Match
We beat by $50
30-Day
Money Back
Free
Freight Shipping
1-Year
Warranty
Secure
Stripe Checkout
Free ShippingLimited WarrantyReturns AvailableSecure Checkout
Product features
Professional grade
AUTOTUNE™ ENGINE MANAGEMENT
AutoTune automatically adjusts the engine for altitude, temperature, fuel and filter condition — no carburetor screws, no guesswork. Peak performance everywhere, all the time.
AIR INJECTION™ CENTRIFUGAL CLEANING
A centrifugal air cleaning system removes up to 97% of dust and debris before it reaches the air filter. The filter stays cleaner for longer, the engine runs stronger, and service intervals stretch out.
LOWVIB® ANTI-VIBRATION
Effective dampeners between the engine and handles absorb vibration before it reaches your arms and hands — essential when the saw is in your hands all day, every day.
Technical specs
Specifications
Key specs
- Engine
- 50.1 cm³ 2-stroke X-Torq®
- Power output
- 4.0 hp (3.0 kW)
- Bar length
- 18 in (options 13–20 in)
- Chain pitch / gauge
- .325 in / .050 in
- Weight
- 11.7 lbs (excl. cutting equipment)
- Chain speed at max power
- 64.3 ft/s
- Max torque
- 3.15 Nm @ 7,800 rpm
- Engine management
- AutoTune™ — automatic tuning
- Warranty
- Husqvarna limited professional warranty*
*Warranty term limited to years or hours used, whichever comes first. Specifications based on published information and subject to change without notice.
Free shipping
Delivered ready-to-mow
3-year warranty
240-hour limited coverage
30-day returns
Risk-free trial at home
0% financing
No interest for 9 months
Ownership details
More than a saw
Best-in-class power-to-weight
4.0 hp in an 11.7-pound saw with 64 ft/s chain speed — limbing, felling and bucking all feel a gear faster.
Built to be serviced
Magnesium crankcase, snap-lock cover and quick-release filter keep daily maintenance to minutes, even in the field.
All-conditions reliability
AutoTune adapts to altitude, temperature and fuel — and optimized cooling keeps power consistent on long, hard pulls.
See it in action
The 550 XP Mark II on video
Walkthroughs, first cuts and pro reviews — see the 550 XP Mark II at work before you buy.
Husqvarna XP Saws — Overview & First Cuts
Husqvarna USA · Official pro-saw feature walkthrough
How to Start & Maintain a Husqvarna Chainsaw
Husqvarna USA · Official care series: starting, chain, filter
Husqvarna 50cc Pro Saws — Owner Review
YouTube · Long-term professional review
Customer reviews
What owners say
4.9
186 verified owner reviews
98% would recommend
5 star88%
4 star8%
3 star2%
2 star1%
1 star1%
SM
Scott M.
Salem, OR · Aug 2025
Verified owner
The arborist favorite for a reason
4 horsepower in an 11.7-pound package — nothing else in the 50cc class comes close to this power-to-weight. AutoTune keeps it dialed in from sea level to the mountains.
JT
Jared T.
Verified owner · Jul 2025
Verified owner
AutoTune is the real deal
Cold morning at 6,000 ft, hot afternoon in the valley — never touched a carburetor screw. It just runs perfectly everywhere.
MR
Miguel R.
Redding, CA · Jul 2025
Verified owner
Limbing machine
Light, fast-revving and perfectly balanced with the 18-inch bar. Chain speed of 64 ft/s makes limbing feel effortless.
DK
Dan K.
Traverse City, MI · Jun 2025
Verified owner
Magnesium crankcase means business
This is built like a pro saw because it is one. Two seasons of daily commercial use and it still feels new.
PW
Paul W.
Verified owner · Jun 2025
Verified owner
Premium price, premium saw
Costs more than a Rancher, but if you cut for a living the weight savings and AutoTune pay for themselves in a month.
TB
Trevor B.
Duluth, MN · May 2025
Verified owner
Starts first pull, every time
Smart Start, air purge and AutoTune together mean this saw has never needed more than two pulls — even at -10°F.
Verified
Perfect tree-service saw
We run three of these in the crew. Zero downtime in two years.
Erik H. · Bozeman, MT · May 2025
Verified
Feels like a 40cc, cuts like a 60cc
The balance and throttle response are unreal for a saw this light.
Sam O. · Verified owner · Apr 2025
Verified
Worth every penny
Coming from a 455 Rancher — the 550 XP is lighter, faster and stronger. Noticeable from the first cut.
Cole N. · Asheville, NC · Apr 2025
Verified
Keep the filter clean
Saw is flawless. Air Injection helps a ton, just tap the filter out daily and it runs like new.
Wade L. · Verified owner · Mar 2025
Verified
Forestry work daily
Thinning and bucking five days a week. The cooling system keeps power consistent on long pulls.
Ron F. · Helena, MT · Mar 2025
Verified
My go-to climbing saw
Light enough for aerial work, strong enough for trunk wood. Rare combination.
Alex G. · Verified owner · Feb 2025
Verified
Winter-tested
Runs logging operations through Maine winters. Never once failed to start.
Jim C. · Bangor, ME · Feb 2025
Verified
Pro quality through and through
From the magnesium crankcase to the X-Cut chain, everything about this saw says professional.
Kurt V. · Coeur d'Alene, ID · Jan 2025
Verified
Dealer set it up perfectly
Ordered online, local dealer checked it over free. Great experience start to finish.
Owen D. · Verified owner · Jan 2025