Honda BF40

starting price


  • 17amp battery charging capacity – at the top of its class for outboard engines with the same output.
  • BF40 can be used with a wide range of boat types due to its lightweight, compact design.
  • A new one-touch plastic cap permits easy inspection of anode wear inside the engine, for significantly improved ease of maintenance.
  • Noise levels have been reduced by 1.0dB over the previous model.
  • 4-Front Corrosion Protection. A patented, ‘double sealed’ multi-layered paint process. Sacrificial anodes and stainless steel technology, along with waterproof connectors, all enhance corrosion protection.
  • NMEA2000® compliant.


The Honda BF40 outboard engine retains its class-leading lightweight, compact packaging, enhanced with PGM-FI electronic fuel injection. It features the innovative BLAST™ (Boosted low speed torque) for rapid acceleration, ECOmo Lean Burn Control® for exceptional fuel economy at cruise and NMEA 2000® which shows all engine and fuel data on a GPS screen.

Lightest in class, most fuel efficient in class, best acceleration, the list goes on. Tick all the boxes with the Honda BF40.


A reduction gear is employed to achieve compact engine layout by offsetting the in-line three-cylinder engine forward, while a long-branch plastic inlet manifold and miniaturized electronic components further contribute to the class-topping lightweight, compact design.  Like Honda’s larger outboard engines, the BF40 features a striking ‘wing form’ design, emphasizing the design concept of slimness and strength.

Models Avaliable:

BF40DK4LRTD Remote Control 20″, Power trim & tilt, tacho & trim gauge, 17Amp charging coil (RRP: $10,897)

BF40DK4LHTD Tiller, 20″, Power trim & tilt, 17Amp charging coil (RRP: $11,349) 

  • Engine Type 3-cylinder 4-stroke 6 valves
  • Displacement 808cc
  • Bore & Stroke 89 x 96
  • Full Throttle RPM Range 4500 – 5500 RPM
  • HP Rating @ Propshaft 40HP @ 5500 RPM
  • Valves per Cylinder Two
  • Fuel Delivery
  • Programmed fuel injection
  • Ignition System Solid State
  • Starting System Electric
  • Cooling System  Water Cooled
  • Alternator  22-Amp
  • Fuel Tank 25L Tote
  • Propeller Aluminium

Recommended Transom Height 20”
Dry Weight 100kg

Gear Ratio 2.08:1
Gear Shift F-N-R
Propeller Alloy included

BOOSTED LOW SPEED TORQUE (BLAST) – Honda’s revolutionary BLAST™ technology provides strong hole shot performance, getting the hull on the plane quicker. This air/fuel ratio and ignition-timing technology boosts engine torque at low RPM under rapid acceleration conditions. It’s NMEA compatible, meaning all engine data including speed, fuel consumption, cruising distance, etc can be displayed on the GPS screen.

CRUISE MORE, SPEND LESS – Honda’s Lean Burn Control technology, ECOmo, permits combustion to operate on a leaner air/fuel ratio. Sensors precisely measure the air/fuel mixture, ensuring best fuel economy in cruising mode.

As a testament to their quality and reliability, all Honda engines come with a SEVEN year, non-declining, non-commercial warranty or a THREE year commercial warranty. Shop around, you won’t find a better warranty set up than Honda Marine.

Build Your Engine - Optional Extras

Click categories below to reveal optional extras. Send us the quote request and we’ll be in touch!