Husqvarna authorised dealer

Husqvarna 543RS

SKU: 966779901 Category:

£649.00 (Inc VAT) - incl. VAT

1 in stock

Practical, petrol-powered brushcutter engineered for frequent trimming of thick grass and weeds. As an installer I’d fit the supplied harness, check bevel-gear alignment and make sure the combi-guard and cutting attachments are mounted correctly before first use. The machine features an X-Torq engine and an efficient air filter to reduce wear and service costs.

Strong, fuel-efficient power

X-Torq engine increases torque across a wide rpm range for reliable cutting performance while reducing fuel consumption and emissions compared with conventional two-stroke designs.

Durable build for tough jobs

Heavy duty clutch, robust die‑casted handle clamp and proven bevel gear design stand up to long hours and heavy cutting equipment.

Versatile cutting setup

Combi-guard accepts either the supplied Multi 275-4 grass blade or the T35 M12 trimmer head, allowing quick change between blade and line cutting; nominal cutting width 46 cm.

Key specification
Article ID 966779901
Power output 1.39 kW
Cylinder displacement 40.1 cm³
Weight 7.4 kg
Bar / blade / cutting length 46 cm
Fuel tank 0.75 l
Full specification
IsNew No
Weight (excl. cutting equipment) 7.4 kg
SpareParts 521642101, 577926701, 521233401, 578059501, 525418201, 528706201, 521672401, 504117701, 506742601, 516972801, 513789301, 525348601, 528818301, 521636401, 521665101, 521665201, 502291101, 506746801, 516283001, 503798801, 520954901, 546071709, 505296701, 520954801, 505293801, 505297301, 504121501, 506614601, 503936601, 501185001, 528074001
Accessories 578447601, 578446401, 578446601, 578449301, 578444501, 578445101, 578447801, 578446801, 537331603, 546380401, 546380601, 546380801, 578449701, 597468201, 597468901
Cylinder displacement (metric) 40.1 cm³
Output shaft power (metric) 1.39 kW
Fuel tank volume (metric) 0.75 l
Fuel Consumption 424 g/kWh
Maximum power speed 9000 rpm
Idling speed 3000 rpm
Torque, max. 1.96 Nm
Torque, max. at rpm 6000 rpm
Spark Plug NGK CMR7H
Cutting width (metric) 46 cm
Connectivity Not applicable
Exhaust emissions (CO₂ EU V) 1014 g/kWh
Sound pressure level at operators ear (LpA) 95 dB(A)
Sound power level, guaranteed (LWA) 118 dB(A)
Equivalent vibration level (ahv, eq) left handle 3.5 m/s²
Equivalent vibration level (ahv, eq) right handle 3 m/s²
Gear ratio 1.4
Drive gear angle 30 °
Tube diameter (metric) 28.05 mm
Tube length (metric) 1483 mm
Grass blade Multi 275-4
Harness Standard double harness
Saw blade Not included
Trimmer head T35 M12
Handle type Bullhorn
Lubricant type (Engine) Husqvarna 2 stroke or equiv. at 50:1
Lubricant type (bevel gear) Mineral grease
Exhaust emissions (HC average) EU 41 g/kWh
Exhaust emissions (CO average) EU 290.1 g/kWh
Exhaust emissions (NOx average) EU 0.7 g/kWh
Packaging length 1920 mm
Packaging width 300 mm
Packaging height 370 mm
Power source Petrol
WEEE Classified No

Key features

X-Torq® engine

X-Torq® engine

The X-Torq® engine design increases torque over a wider rpm range providing maximum cutting power.

Standard double harness

Standard double harness

Standard double harness for lighter brushcutters provides a comfortable working position. The weight is distributed evenly over the shoulders and the harness is padded for extra convenience.

Quick Start with Air Purge

Quick Start with Air Purge

Air purge removes air from carburetor and fuel system for easy starting

High Line Capacity

High Line Capacity

Heavy duty twin line cutting system with Tap’n Go. Line feeding is done quick and effortlessly by simply pushing the trimmer head into the ground.

Combi-guard

Combi-guard

The cutting attachment combi-guard can be used with either a grass blade or a trimmer head.

Bevel gear design

Bevel gear design

Proven and reliable gear design.

Robust handle system

Robust handle system

The handle bar is attached to the tube by a die casted clamp for high durability.

Heavy duty clutch

Heavy duty clutch

The heavy duty clutch facilitates tough work using long cords and large diameter cutting knife.

Stand alone starter

Stand alone starter

The stand alone starter makes it easy to change starter cord if needed.

Efficient air filter

Efficient air filter

The efficient air filter provide less cost for service and less engine wear

Grass bevel gear

Grass bevel gear

Bevel gear designed for optimal cutting performance. It provides high torque and ensures the correct angle so that the cutting equipment is kept parallel to the ground.

Ergonomic handle

Ergonomic handle

Comfortable handle design.

Features

FAQs

Will this fit my machine?

Fitment can vary by model and deck size. Send us your mower model (and deck size if applicable) and we’ll confirm compatibility before you order.

Do I need any extra brackets or fitting kits?

Some accessories require a mounting kit or specific brackets depending on your machine. If you’re unsure, ask us and we’ll advise the correct setup.

Can you fit it for me?

Yes — if you’d like installation, let us know when ordering and we can arrange fitting (collection, workshop fit, or on-site depending on the product).

What fuel and oil mix should I use?

Use Husqvarna 2-stroke oil or an equivalent high-quality 2T oil at a 50:1 mix ratio as specified by Husqvarna. The fuel tank capacity is 0.75 litres. Always follow safe mixing and storage practices.

Which cutting attachments come with the machine?

The machine is supplied with a T35 M12 trimmer head and a Multi 275-4 grass blade plus the combi-guard, allowing you to switch between line and blade cutting depending on the task. Cutting width is 46 cm with the blade.

What personal protection and PPE should I use?

Use the supplied standard double harness and wear hearing protection (sound pressure at operator’s ear 95 dB(A)), eye protection, gloves, long trousers and sturdy boots. Check vibration exposure for long shifts (left 3.5 m/s², right 3.0 m/s²) and plan breaks accordingly.

Additional information

Weight 7.400 g
UPC|EAN

7391883709764