Husky 143R11A Replacement Brush Cutter Engine 41.5cc 1.47kW

A proven replacement engine that fits where it matters most.

The Husky 143R11A is a reliable, high-performance 2-stroke replacement engine compatible with most 37, 38, 42, 45, and 52cc brush cutters. Producing 1.47kW at 7500rpm, it's a powerful, easy-starting engine built for demanding outdoor work — and it comes with a centrifugal clutch included.

A foam air filter extends engine life in dusty conditions, and the centrifugal clutch automatically engages only when needed, reducing wear and improving control. Based on the Husqvarna 143R11 platform, most engine parts are interchangeable.

Note: This is a replacement engine only — no drive shaft or transmission included. Always wear safety goggles and ear protection when operating power tools.

Key Specifications

• Model: 143R-11A | Displacement: 41.5cc
• Max Power: 1.47kW @ 7500rpm
• Cylinder Bore: 40mm | Stroke: 33mm
• Idle Speed: 2500rpm | Max Speed: 12,000rpm
• Output Shaft Speed: 8570rpm
• Carburetor: Walbro WYJ
• Fuel Tank: 0.94L
• Sound Power Level: 113dB(A) measured / 114dB(A) guaranteed
• Includes clutch

Compatible with most straight-shaft brush cutters in the 37–52cc range.