Products Description
Husqvarna 143R-II / G45 Brush Cutter Engine – Complete Power Unit Overview
Rugged 41.5cc 2‑Stroke Engine for Professional Brushcutting
The Husqvarna 143R-II is a professional-grade brushcutter powered by the robust G45L 2‑stroke engine (41.5cc) . This engine delivers 1.5 kW (approximately 2.0 HP) of output shaft power at 7,500 rpm, providing reliable performance for demanding vegetation management tasks . Designed with an asymmetric handlebar system for improved working posture, the 143R-II engine platform is built for durability and ease of maintenance, featuring a standalone starter design for convenient cord replacement and an efficient air filtration system to reduce service costs and engine wear .
Technical Profiles & Materials
41.5cc G45L 2‑Stroke Engine – The engine features a 40 x 33 mm bore/stroke configuration, delivering 1.5 kW (2.0 HP) of power at 7,500 rpm . The maximum torque of 2.3 Nm is achieved at 5,500 rpm, with clutch engagement occurring at approximately 3,300 rpm . The engine uses a 0.6 mm electrode gap and is fitted with an NGK BPMR7A spark plug .
Fuel System & Efficiency – The 0.94–0.95 litre fuel tank provides extended runtime . Fuel consumption is rated at 653 g/kWh, with idling speed set at 2,500 rpm . The engine features an air purge system that removes air from the carburetor and fuel system for easy starting .
Durable Engine Components – The engine is equipped with a heavy-duty clutch capable of handling tough work using long cords and large-diameter cutting knives . The standalone starter design makes it easy to change starter cord if needed . The efficient air filter provides less cost for service and less engine wear .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Engine Name | G45L 2‑stroke petrol engine |
| 2 | Cylinder Displacement | 41.5 cm³ |
| 3 | Bore × Stroke | 40 × 33 mm |
| 4 | Output Shaft Power | 1.5 kW |
| 5 | Max Power Speed | 7,500 rpm |
| 6 | Max Torque | 2.3 Nm @ 5,500 rpm |
| 7 | Clutch Engagement Speed | 3,300 rpm (±120) |
| 8 | Idling Speed | 2,500 rpm |
| 9 | Fuel Tank Capacity | 0.94 – 0.95 L |
| 10 | Fuel Consumption | 653 g/kWh |
| 11 | Electrode Gap | 0.6 mm |
| 12 | Spark Plug | NGK BPMR7A |
| 13 | Weight (without cutting equipment) | 7.2 – 7.6 kg |
| 14 | Overall Length | 1,495 mm |
Products Application
Professional Landscaping & Grounds Maintenance
The 143R-II engine powers a rugged brushcutter designed for tough use in large-scale vegetation management . Its asymmetric handlebar design improves working posture during extended sessions, while the standard double harness distributes weight evenly over the shoulders for comfortable operation . The engine delivers consistent power for clearing grass, weeds, and light brush in parks, golf courses, and commercial properties.
Agricultural & Rural Property Maintenance
For farmers and rural property owners, the 41.5cc engine provides reliable power for maintaining fence lines, orchards, and overgrown fields. The 0.94‑litre fuel tank allows extended runtime between refuels, and the combi-guard offers versatile use with either a grass blade or a trimmer head to suit different tasks . The heavy-duty clutch ensures reliable performance even with long cords and large-diameter cutting knives .
Workshop Servicing & Preventative Maintenance
For repair centres maintaining Husqvarna 143R-II equipment, the standalone starter design simplifies starter cord replacement and reduces service time . The efficient air filter system reduces service costs and engine wear . Parts availability is supported by Husqvarna's comprehensive parts and support network, with online manuals and parts diagrams accessible for accurate servicing .
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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Customer Reviews
FAQ
Q: What is the correct spark plug for the G45L engine?
A:The engine uses an NGK BPMR7A spark plug with an electrode gap of 0.6 mm .
Q: What is the fuel tank capacity of the 143R-II?
A: The fuel tank capacity is 0.94 – 0.95 litres .
Q: What is the clutch engagement speed?
A: The clutch engages at 3,300 rpm (±120 rpm) .
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