Set the Honda BF140AK1XCDA 140HP Outboard on a compatible 25-inch transom when a twin-engine digital rig requires a port-side counter-rotation unit. Its 2,354 cc inline four-cylinder DOHC engine uses 16 valves and VTEC technology, producing 140 HP at 5,500 RPM for properly rated offshore center consoles and larger recreational hulls. Honda BF140AK1XCDA is an iST drive-by-wire 4-stroke outboard with Programmed Fuel Injection, electric starting, Power Trim & Tilt, and Intelligent Shift and Throttle control. The counter-rotation configuration is the defining feature for the listed port-side application.

At 485 lbs dry, this outboard should be included in the complete transom, balance, and twin-engine loading calculations. Its 25-inch X-long shaft suits boats designed around a taller transom, while the 5,000–6,000 RPM full-throttle range provides a reference for propeller and engine setup. The 40-amp alternator supplies 30 charging amps for supported navigation displays, pumps, lighting, and communication equipment. The listed engine oil capacity is 6.7 L with filter; gearcase lubricant quantities and service procedures should follow the applicable Honda manual.

Honda BF140AK1XCDA Counter-Rotation iST Outboard for Twin 25-Inch Setups

- Install the 25-inch X-long shaft on boats designed for taller transom mounting.
- VTEC Engine — produces 140 HP at 5,500 RPM from a 2,354 cc DOHC four-cylinder layout.
- Twin-engine installations can use the listed port-side counter-rotation configuration when the rigging supports it.
- 485 lbs dry weight requires careful transom, balance, and twin-engine capacity planning.
- Intelligent Shift and Throttle provides drive-by-wire control for compatible digital helm systems.
- Power Trim & Tilt changes engine angle during acceleration, cruising, maneuvering, and trailering.
- 40 amps total, including 30 charging amps, supports compatible marine electronics and onboard accessories.

Why Choose the Honda BF140AK1XCDA

This model is intended for a specific twin-engine requirement rather than a general single-engine replacement. Its counter-rotation layout, iST controls, and 25-inch shaft must all match the boat’s existing rigging. The 140 HP output then gives an approved vessel a clearly defined power level for offshore and recreational use.

- Counter-rotation layout suits listed port-side twin installations
- 25-inch shaft matches compatible X-long transoms
- iST controls support digital helm arrangements

Applications & Use Cases

Honda BF140AK1XCDA is suited to twin iST digital configurations on offshore center consoles and other boats designed for 25-inch transoms. Use it for offshore fishing, coastal cruising, and recreational travel only when the vessel supports the twin-engine layout, counter-rotation arrangement, total engine weight, and 140 HP rating.

- Port-side twin-engine digital configurations
- Offshore center consoles with 25-inch transoms
- Recreational cruising with iST controls

Warranty, Support & Maintenance

The supplied product information lists a 5-year non-declining standard warranty. Follow the applicable Honda owner’s manual for the 6.7 L engine oil capacity with filter, gearcase lubricant service, filters, spark plugs, cooling-system inspection, counter-rotation components, and iST controls. Confirm twin-engine compatibility, warranty registration, dealer support, and service requirements before purchase.