Mercury 225CXXL 225HP Outboard – 30in Shaft, Counter Rotation, DTS, V6
Simple rigging, Mercury 225CXXL gets to work with 225 horsepower. Built for twin installs, it counters prop torque on the opposite side. Finished in Cold Fusion White for a clean look on the water.
- 225 horsepower on tap
- 30-inch shaft for most transoms
- Counter-rotating gears for twin engines
- DTS digital throttle and shift
- V6 engine, proven configuration
Description
Install the V8-powered, 30-inch Mercury 225CXXL to resolve severe propeller ventilation on custom high-transom offshore hulls. The naturally aspirated 4600cc block forces immediate acceleration, pushing heavily loaded multi-engine center consoles over aggressive ocean swells. Taping your transom verifies this 30 inch shaft mercury outboard motor places the water intakes deep enough for safe operation.
Fighting dead electronics while slow-trolling for pelagics? The Idle Charge battery management system acts as an automatic electrical failsafe. The engine elevates idle RPM slightly to replenish drained battery banks. Mercury casts the 243 kg assembly with low-copper marine alloys under the Cold Fusion White finish. This barrier stops galvanic decay completely when repowering large bay boats.
Key Features of Mercury 225CXXL
- 32-Valve DOHC Powerhead: Breathes massive volumes of clean air, generating 225 horsepower effortlessly without relying on forced induction components.
- 30-Inch XXL Shaft: Reaches below heavily modified offshore transoms, keeping the propeller fully engaged in clean undisturbed water.
- Advanced Power Trim: Adjusts the running angle dynamically from the helm, optimizing hull attitude during rough ocean crossings.
- DTS Integration: Replaces binding mechanical cables with precise electronic signals, allowing effortless multi-engine synchronization from a single binnacle.
- Idle Charge Management: Monitors voltage drops actively, raising engine RPM automatically to power high-draw marine electronics while trolling.
- Low-Copper Marine Alloys: Forms a rigid structural barrier under the paint, resisting severe saltwater degradation across decades of exposure.
- Submerged Exhaust Routing: Channels hot gases out through the propeller hub, keeping the aft deck completely free of exhaust smoke.
- Accessible Inline Fuel Filter: Traps water and debris before it reaches the injection system, preventing sudden offshore engine stalling.
- Heavy-Duty Gearcase: Deflects submerged debris physically, protecting the hardened steel internal gears from catastrophic offshore impacts.
- EPA Compliant Technology: Burns fuel with strict efficiency, ensuring peak performance while meeting modern clean-air environmental standards.
Why Choose Mercury 225CXXL
You select this counter-rotating 30-inch motor specifically to complete a twin or triple engine array on massive offshore hulls. Substituting a 25-inch model will cause catastrophic water pump starvation. Upgrading your mercury digital throttle network is required for multi-engine communication.
- Confirm a 30-inch vertical drop from the mounting bracket to the keel line.
- Network the DTS module securely to your master helm command center.
- Avoid heavy smoke and oil slicks using advanced V8 four-stroke internal lubrication.
Ideal Application and Vessel Fitment
Engineered for massive triple-engine center consoles and custom offshore catamarans, this 30-inch shaft configuration reaches deep below highly elevated transoms to find clean, undisturbed water. Running this 30 inch shaft mercury outboard motor on the port side guarantees absolute tracking stability through aggressive ocean chop. It is the definitive choice for long-range tournament anglers and offshore patrol vessels demanding uninterrupted propeller bite when cresting large swells at high cruising speeds.
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. For product details and order support, Mulmotor offers assistance before your purchase is placed.
Mercury 225HP 225CXXL White Specs
| Brand | Mercury Marine |
| Full Model Code | 225CXXL DTS (Cold Fusion White) |
| Engine Type | V8 4.6L 32-Valve DOHC |
| Displacement | 4600 cc (4.6 L) |
| Horsepower | 225 HP |
| Full Throttle RPM Range | 4800-5400 RPM |
| Fuel Induction System | Computer Controlled EFI |
| Alternator Output | 85 Amps (1071 Watts) |
| Gear Ratio | 1.85:1 |
| Shaft Length | XXL (30 inch) |
| Dry Weight | 243 kg |
| Starting & Steering System | Electric Start / DTS (Digital Control) |
| Special Features | Extra-Extra Long Shaft, Idle Charge Battery Management |
| Application | Large Multi-Engine Offshore Vessels, High-Transom Boats |















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