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Husqvarna 550 XP Mark II 18in Gas Powered Chainsaw
- $307.00
- Brands Husqvarna
- Product Code: 967 69 08-18
- Availability: In Stock
Husqvarna 550 XP® Mark II 50.1 cc Gas-Powered Chainsaw – 18-Inch Bar Product Overview The Husqvarna 550 XP® Mark II is a professional-grade gasoline chainsaw designed for forestry, tree care, felling, limbing, and bucking. Its 50.1 cc X-Torq® engine produces approximately 4 hp (3.0 kW), giving the saw strong cutting performance while maintaining the compact, maneuverable characteristics expected..
Professional 18in Gas Chainsaw Husqvarna 550 XP Mark II Performance
Husqvarna 550 XP® Mark II 50.1 cc Gas-Powered Chainsaw – 18-Inch Bar
Product Overview
The Husqvarna 550 XP® Mark II is a professional-grade gasoline chainsaw designed for forestry, tree care, felling, limbing, and bucking. Its 50.1 cc X-Torq® engine produces approximately 4 hp (3.0 kW), giving the saw strong cutting performance while maintaining the compact, maneuverable characteristics expected from a professional 50 cc chainsaw.
This configuration features an 18-inch guide bar, making it a versatile choice for small- and medium-sized trees as well as demanding tree-care work. Husqvarna also incorporates LowVib®, Air Injection™, an optimized cooling system, retained bar nuts, and a forged three-piece crankshaft to support durability, operator comfort, and reliable performance.
Key Features
- 50.1 cc X-Torq® engine provides professional-level cutting performance.
- 4 hp / 3.0 kW output delivers strong power for felling, limbing, and bucking.
- 18-inch guide bar offers a practical balance between cutting capacity and maneuverability.
- .325-inch chain pitch is well suited to the saw's 50 cc professional power class.
- 0.050-inch / 1.3 mm chain gauge provides a durable cutting configuration.
- SP33G chain is specified for the 18-inch, 1.3 mm configuration.
- 19.6 m/s chain speed at maximum power supports fast cutting performance.
- X-Torq® technology is designed to improve fuel efficiency and reduce exhaust emissions.
- LowVib® dampers help reduce vibration transmitted to the operator's hands and arms.
- Air Injection™ helps remove larger dust and debris particles before they reach the air filter.
- Optimized cooling system helps manage engine temperatures during demanding operation.
- Forged three-piece crankshaft is designed for durability under professional workloads.
- Side-mounted chain tensioner provides convenient access for chain adjustments.
- Adjustable oil pump allows the operator to control chain-oil flow according to working conditions.
- Retained bar nuts help prevent the bar nuts from becoming separated from the saw during servicing.
- Felling sight provides a clear visual reference to assist with accurate felling cuts.
- Slimmed-down professional design improves maneuverability in demanding forestry environments.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Husqvarna |
| Model | 550 XP® Mark II |
| Product Type | Professional Gas-Powered Chainsaw |
| Intended Use | Forestry / Tree Care |
| Engine Type | 2-Stroke X-Torq® |
| Cylinder Displacement | 50.1 cc |
| Power Output | 4 hp / 3.0 kW |
| Maximum Power Speed | 10,200 rpm |
| Maximum Torque | 3.15 Nm |
| Maximum Torque Speed | 7,800 rpm |
| Idle Speed | 2,800 rpm |
| Clutch Engagement Speed | 3,900 rpm |
| Bar Length | 18 in / 45 cm |
| Recommended Bar Range | 13–20 in |
| Chain Pitch | .325 in |
| Chain Gauge | .050 in / 1.3 mm |
| Chain Type | SP33G |
| Chain Speed at Maximum Power | 19.6 m/s / 64.3 ft/s |
| Sprocket Type | Rim, 7-tooth |
| Oil Pump | Adjustable flow; no flow at idle |
| Chain Lubrication | Automatic |
| Spark Plug | NGK CMR6H |
| Electrode Gap | 0.02 in |
| Air Injection™ | Yes |
| LowVib® | Yes |
| AutoTune™ | No |
| Weight, excluding cutting equipment | 11.7 lb / 5.3 kg |
| Front Handle Vibration | Approx. 4.0 m/s² |
| Rear Handle Vibration | Approx. 4.6 m/s² |
| Operator Ear Sound Pressure | Approx. 107 dB(A) |
| Guaranteed Sound Power Level | Approx. 117 dB(A) |
Specifications for the 18-inch 1.3 mm configuration are based on Husqvarna's published product/support information. Regional versions and bar/chain configurations can differ.
Professional 50 cc Performance
The 550 XP® Mark II is designed around a 50.1 cc engine producing 4 hp, giving it a strong power-to-weight combination for professional forestry work. Its compact form makes it easier to maneuver around branches and through dense vegetation than larger displacement saws.
The engine's X-Torq® technology is designed to provide efficient combustion while reducing fuel consumption and exhaust emissions compared with conventional two-stroke engine technology.
18-Inch Cutting System
The 18-inch guide bar provides a versatile cutting setup for professional users. Husqvarna specifies a .325-inch pitch and 1.3 mm (.050-inch) gauge SP33G chain for this particular configuration.
The combination is suitable for a broad range of felling, limbing, and bucking tasks, while the relatively compact bar length helps maintain maneuverability when working in dense tree canopies or around branches.
Air Injection™ Filtration
Forestry environments expose chainsaws to substantial amounts of sawdust, bark, and airborne debris. Husqvarna's Air Injection™ centrifugal air-cleaning system helps remove larger particles before they reach the air filter.
This reduces the amount of debris entering the filter system and supports consistent engine performance during demanding cutting operations.
LowVib® for Operator Comfort
The 550 XP® Mark II incorporates LowVib® vibration-damping technology to reduce vibration transferred from the engine and cutting system to the handles.
This is particularly useful for professional operators who may use the chainsaw repeatedly throughout a working day, helping improve comfort and control.
Optimized Cooling and Durable Construction
Professional chainsaws can operate under substantial loads, making heat management important. The 550 XP® Mark II uses an optimized cooling system designed to help maintain appropriate engine temperatures and contribute to longer engine life.
Its forged three-piece crankshaft is built for durability, while the professional construction is designed to withstand demanding forestry conditions.
Convenient Chain Maintenance
The saw features a side-mounted chain tensioner for easier access when adjusting chain tension. Its adjustable oil pump lets the operator regulate chain lubrication according to cutting conditions, while retained bar nuts help prevent the nuts from becoming lost during maintenance.
Ideal Applications
The Husqvarna 550 XP® Mark II with an 18-inch bar is well suited for:
- Professional forestry
- Tree felling
- Limbing
- Bucking
- Tree care
- Small- and medium-sized tree removal
- Firewood processing
- Land management
- Farm and rural property maintenance
- Storm-damage cleanup
- Professional arborist work
Why Choose the Husqvarna 550 XP® Mark II?
The Husqvarna 550 XP® Mark II 18-inch chainsaw combines a 50.1 cc, 4 hp X-Torq® engine with a maneuverable 18-inch cutting system and professional features such as Air Injection™, LowVib®, optimized cooling, an adjustable oil pump, and a forged three-piece crankshaft.
For professional forestry and tree-care users, it provides a strong balance of power, cutting speed, durability, and maneuverability, making it a versatile choice for felling, limbing, bucking, and demanding tree-maintenance work.