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Husqvarna 550 XP Mark II 50cc 20in Gas Chainsaw
- $311.00
- Brands Husqvarna
- Product Code: 967 69 08-50
- Availability: In Stock
Husqvarna 550 XP® Mark II 50 cc Gas Chainsaw – 20-Inch Bar Product Overview The Husqvarna 550 XP® Mark II is a professional gasoline chainsaw designed for forestry, tree care, felling, limbing, and bucking. Its 50.1 cc X-Torq® two-stroke engine produces approximately 4 hp (3.0 kW), giving the saw an excellent power-to-weight ratio for demanding cutting work. This configuration is equipped with ..
High Performance 50cc Gas Chainsaw Husqvarna 550 XP Mark II 20in
Husqvarna 550 XP® Mark II 50 cc Gas Chainsaw – 20-Inch Bar
Product Overview
The Husqvarna 550 XP® Mark II is a professional gasoline chainsaw designed for forestry, tree care, felling, limbing, and bucking. Its 50.1 cc X-Torq® two-stroke engine produces approximately 4 hp (3.0 kW), giving the saw an excellent power-to-weight ratio for demanding cutting work.
This configuration is equipped with a 20-inch guide bar, providing additional reach and cutting capacity while retaining the maneuverability of Husqvarna's professional 50 cc platform. Features including AutoTune™, Air Injection™, LowVib®, optimized cooling, and a forged three-piece crankshaft are designed to support consistent performance and durability during professional use.
Key Features
- 50.1 cc X-Torq® engine delivers strong professional cutting performance.
- 4 hp / 3.0 kW output provides an effective power-to-weight ratio.
- 20-inch guide bar provides greater reach and cutting capacity for larger timber and demanding jobs.
- .325-inch chain pitch is matched to the saw's 50 cc professional power class.
- .050-inch / 1.3 mm chain gauge provides a durable cutting configuration.
- SP33G chain is specified for the 20-inch, 1.3 mm configuration.
- 19.6 m/s chain speed at maximum power provides fast cutting performance.
- X-Torq® technology is designed to improve fuel efficiency and reduce exhaust emissions.
- AutoTune™ automatically adjusts engine fuel-air mixture to help maintain consistent performance.
- Air Injection™ helps remove larger dust and debris particles before they reach the air filter.
- LowVib® system reduces vibration transmitted to the operator.
- Optimized cooling system helps manage engine temperature during demanding operation.
- Forged three-piece crankshaft is designed for professional-duty durability.
- Adjustable oil pump allows chain lubrication to be matched to operating conditions.
- Side-mounted chain tensioner makes routine chain adjustment more convenient.
- Retained bar nuts help prevent the nuts from becoming separated from the saw during maintenance.
- Inertia-activated chain brake provides protection against sufficiently forceful kickback events.
- Professional slim-profile design helps maintain maneuverability despite the longer bar.
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 | Approx. 3.15 Nm |
| Maximum Torque Speed | Approx. 7,800 rpm |
| Idle Speed | 2,800 rpm |
| Clutch Engagement Speed | 3,900 rpm |
| Guide Bar Length | 20 in / 50 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 | Approx. 19.6 m/s |
| Sprocket | 7-tooth rim |
| Chain Lubrication | Automatic |
| Oil Pump | Adjustable |
| Air Injection™ | Yes |
| AutoTune™ | Yes |
| LowVib® | Yes |
| Chain Brake | Inertia activated |
| Weight, excluding cutting equipment | Approx. 11.7 lb / 5.3 kg |
| Operator Ear Sound Pressure | Approx. 107 dB(A) |
| Guaranteed Sound Power Level | Approx. 117 dB(A) |
Specifications may vary by market, model year, and cutting-equipment configuration. Confirm the exact bar and chain specification for the specific product SKU.
Professional 50 cc Power
The 50.1 cc X-Torq® engine produces approximately 4 hp, providing the power necessary for professional forestry and tree-maintenance applications.
The engine's compact displacement helps keep the chainsaw relatively lightweight, while X-Torq® technology is designed to improve combustion efficiency and reduce fuel consumption and exhaust emissions compared with conventional two-stroke engine designs.
20-Inch Cutting Capacity
The 20-inch guide bar gives this configuration the maximum recommended bar length for the 550 XP® Mark II. It provides increased reach and cutting capacity compared with shorter 16- or 18-inch configurations.
The 20-inch setup is particularly useful for:
- Larger branches
- Medium-sized timber
- Tree felling
- Bucking logs
- Professional land management
- Demanding forestry work
The .325-inch pitch and .050-inch gauge SP33G chain provide a cutting system designed to complement the saw's 50 cc engine.
AutoTune™ for Consistent Engine Performance
The AutoTune™ system automatically regulates the engine's fuel-air mixture to help maintain performance as operating conditions change.
Changes in temperature, altitude, fuel quality, and air-filter condition can affect two-stroke engine operation. AutoTune™ helps compensate for these variables without requiring the operator to make conventional manual carburetor adjustments.
Air Injection™ Filtration
Working in forestry environments exposes a chainsaw to sawdust, bark, dirt, and other airborne particles. The Air Injection™ centrifugal air-cleaning system helps separate larger particles before they reach the air filter.
This can help reduce filter contamination and support consistent engine performance during extended cutting operations.
LowVib® Operator Comfort
Husqvarna's LowVib® technology uses vibration-damping elements to help reduce vibration transferred from the engine and cutting system to the handles.
For professional operators working for extended periods, reduced vibration can contribute to improved comfort and better control.
Optimized Cooling and Durable Construction
The 550 XP® Mark II incorporates an optimized cooling system designed to help regulate engine temperatures during demanding cutting.
A forged three-piece crankshaft is engineered for durability under professional workloads. The saw also features retained bar nuts and a side-mounted chain tensioner to simplify routine maintenance.
Adjustable Chain Lubrication
The saw's adjustable oil pump allows the chain-oil flow to be modified according to the cutting conditions. This helps provide appropriate lubrication for the bar and chain while allowing the operator to adjust oil consumption for different applications.
Safety Features
The 550 XP® Mark II includes an inertia-activated chain brake designed to stop the chain when a sufficiently forceful kickback event occurs.
Operators should always wear appropriate chainsaw protective equipment and follow the manufacturer's operating instructions. Built-in safety systems do not replace proper training or safe cutting practices.
Ideal Applications
The Husqvarna 550 XP® Mark II 20-inch chainsaw is suitable for:
- Professional forestry
- Tree felling
- Limbing
- Bucking
- Arborist and tree-care work
- Medium-sized tree removal
- Firewood processing
- Farm and ranch maintenance
- Land clearing
- Storm-damage cleanup
- Professional property maintenance
Why Choose the Husqvarna 550 XP® Mark II 20-Inch?
The Husqvarna 550 XP® Mark II 20-inch chainsaw combines a 50.1 cc, 4 hp X-Torq® engine with the maximum recommended guide-bar length for the platform. Its professional features—including AutoTune™, Air Injection™, LowVib®, optimized cooling, an adjustable oil pump, and a forged three-piece crankshaft—are designed for demanding and frequent use.
For forestry professionals and experienced users who need more reach than a 16- or 18-inch configuration provides, the 20-inch version offers a strong combination of cutting capacity, power, durability, and professional-grade control.