Honda BF115J LRU – 115HP 4-Stroke Outboard Engine (Long Shaft, Remote, Power Trim)

The Honda BF115J is built on Honda’s renowned 2.4-liter engine platform, delivering 115 HP with an emphasis on torque. With about 21% more displacement than any competitor in its class, this long-stroke 4-cylinder provides strong acceleration and thrust – especially valuable for quick planing and carrying heavy loads. Its DOHC 16-valve design ensures optimal airflow and smooth operation even at high RPM.

Honda integrates a suite of technologies to boost performance and efficiency in the BF115J. The BLAST system (Boosted Low Speed Torque) dynamically advances ignition timing and enriches the mixture during rapid acceleration from low RPM, giving your boat an immediate surge to plane faster. At cruising speeds, the ECOmo (Economy Controlled Motor) system automatically leans out the fuel mixture, significantly reducing fuel consumption without sacrificing smooth running.

For modern boaters, the BF115J also offers full NMEA 2000 compatibility – meaning the engine can connect to your vessel’s network and relay key data (RPM, temperature, fuel burn, etc.) to multi-function displays and navigation systems. A three-way cooling system maintains stable engine temperature even under high load, and the high-capacity 55A alternator ensures plenty of electrical power for flood lights, livewell pumps, coolers and other onboard devices.

Like all Honda outboards, the BF115J is built with exceptional corrosion protection (a 4-layer paint process, sacrificial anodes, stainless hardware) to ensure a long life in both salt and fresh water. For style, in addition to the standard silver, this model is available in a white finish on select versions – allowing you to better match the engine to your boat’s look. The BF115J also meets rigorous emission standards, making it an environmentally responsible choice with no compromise on power.

• Recommended For: Boats roughly in the 5.5–6.5+ meter range – including medium to heavy hulls, offshore fishing boats, and high-performance cruising craft, where a combination of strong power and efficiency is desired.
• Configurations: Can serve as a single engine on mid-sized vessels or in twin-engine setups on larger boats where extra power and redundancy are needed. Offered in long (20″) or extra-long (25″) shaft lengths to accommodate various transom heights, and counter-rotating models are available for twin installations to ensure balanced operation.
• Ideal Users: Those looking for a mix of reliability, high performance, and modern electronics integration (NMEA 2000) in the ~115HP class will find the Honda BF115 delivers – reinforced by Honda’s marine engineering pedigree and a 5-year warranty for peace of mind.