Mercury 250CXL 250HP Outboard – 25in Shaft, Counter Rotation, DTS, V8
For paired rigs, Mercury 250CXL generates 250 horsepower. A 25-inch shaft carries counter-rotating gears for twin-engine rigs. Owners choose it for steady output without excess weight. Popular among owners of center consoles and cruisers.
- 250 horsepower, ready to run
- 25-inch shaft, standard fit
- Balances torque on twin installs
- DTS digital throttle and shift
- V8 engine, proven configuration
Description
Mount the counter-rotating, V8-powered Mercury 250CXL to cure severe port-side listing on twin-engine setups. The massive 4600cc block utilizes Transient Spark technology, launching heavy offshore center consoles over aggressive morning swells. Verifying your 25-inch transom height guarantees this counter rotating mercury outboard motor pairs perfectly with your starboard drive.
Struggling to balance fuel burn on long tournament runs? Advanced Range Optimization acts as an automatic mechanical lean-out system. The EFI computer stretches your fuel capacity to reach distant fishing grounds. Engineers coat this 239 kg block using multi-stage marine primers. This physical barrier stops galvanic blistering across years of high-salinity exposure when repowering twin engine center consoles.
Key Features of Mercury 250CXL
- Advanced Range Optimization EFI: Adjusts fuel mixtures dynamically at cruising speeds, maximizing offshore range and saving significant fuel costs.
- 25-Inch XL Shaft: Keeps the propeller and water intakes buried in clean water, preventing ventilation on tall offshore transoms.
- Hydraulic Power Trim: Adjusts the running attitude instantly from the binnacle, keeping the hull tracking flat across aggressive ocean chop.
- Counter-Rotating Gearcase: Cancels the lateral steering torque of your starboard engine, keeping the vessel tracking dead straight effortlessly.
- 85-Amp Output Alternator: Replenishes house batteries actively underway, running multiple chartplotters and livewell aerators without voltage drops.
- Multi-Stage Marine Primer: Bonds chemically to the alloy block, reflecting harsh ultraviolet light and preventing cosmetic saltwater blistering.
- Through-Prop Exhaust Routing: Buries loud V8 engine roar deep underwater, keeping the helm station quiet enough for normal conversation.
- Top-Cowl Service Door: Lets operators inspect internal engine oil levels rapidly on the water, preventing catastrophic low-lubrication failures.
- 1.85:1 High-Speed Gearcase: Transfers 250 horsepower directly to the prop shaft securely, hitting massive top-end speeds without slipping.
- Naturally Aspirated V8: Eliminates supercharger maintenance completely, burning fuel cleanly to meet all EPA saltwater emission standards.
Why Choose Mercury 250CXL
This exact counter-rotating 25-inch drive acts strictly as the port-side companion in a twin-engine array. You cannot run it as a standalone engine without fighting severe steering pull. Proper setup requires exact mercury outboards digital throttle syncing across both motors.
- Measure your twin-engine transom bracket to confirm a 25-inch shaft requirement.
- Link the DTS module to your master binnacle to synchronize shift commands perfectly.
- Navigate restricted coastal fisheries legally utilizing advanced four-stroke combustion.
Ideal Application and Vessel Fitment
This 250-horsepower counter-rotating V8 is engineered strictly for twin-engine offshore performance hulls, deep-V center consoles, and large coastal walkarounds. Operating on the port side, it cancels the massive starboard propeller torque to keep the hull tracking straight at 50 knots. It thrives in high-speed tournament fishing environments where balancing thrust, carrying heavy fuel loads, and cutting through unpredictable crosscurrents require a synchronized multi-engine approach.
Warranty, Support and Maintenance
Authorized recreational operation receives a 3-Year Limited Warranty alongside a 3-Year Corrosion Warranty. Registered commercial applications fall under a strict 1-Year Limited Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and changing oil filters at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. Mulmotor can assist with product details and order-related questions before purchase.
Mercury 250HP 250CXL DTS Specs
| Brand | Mercury Marine |
| Full Model Code | 250CXL FourStroke DTS |
| Engine Type | V8 4.6L 32-Valve DOHC (Counter Rotation) |
| Displacement | 4600 cc (4.6 L) |
| Horsepower | 250 HP |
| Full Throttle RPM Range | 5200-6000 RPM |
| Fuel Induction System | EFI w/ Advanced Range Optimization |
| Alternator Output | 85 Amps |
| Gear Ratio | 1.85:1 |
| Shaft Length | XL (25 inch) |
| Dry Weight | 239 kg |
| Starting & Steering System | Electric Start / DTS (Counter Rotation) |
| Features | Transient Spark Technology, Industry-Leading Displacement |
| Application | Twin-Engine Offshore Performance, Large Center Consoles |














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