25.0 Gross HP* EFI/ETC
-
724cc
-
EFI & ETC Technology
-
5-Step Debris Management System
-
Optional 250-Hour Maintenance System - Oil Xtend
Horsepower (HP)
25
Displacement (cc)
724
No. of Cylinders
2
Fuel Type
Gas
Features
Best-in-Class Debris Management
Patented 5-step cyclonic debris management system keeps harmful debris out of the engine, even under heavy-debris conditions.
Vanguard EFI/ETC
Achieve consistent power, optimize fuel efficiency, and improve starting performance with electronic fuel injection (EFI). With electronic throttle control (ETC), the engine instantly adjusts power to match any load, ensuring peak performance at all times. LEARN MORE>>>
Vanguard Oil Xtend™ System (optional)
Maximize uptime and stay productive longer with the exclusive 250-hour maintenance system. LEARN MORE >>>
Vanguard Service and Support
Vanguard superior support solutions minimizes downtime with 24/7 U.S based technical support and industry-leading 3-year global commercial limited engine warranty***.
Specifications
| 25.0 Gross HP* EFI/ETC | |
| Model Number | 44X9 |
| HP (Gross)* | 25.0 |
| Engine Displacement (cc) | 724 |
| Engine Configuration | Vertical |
| Bore (in) | 3.12 |
| Stroke (in) | 2.89 |
| Oil Capacity (oz) | 67 (75 with optional Oil Xtend) |
| Compression Ratio | 8.5:1 |
| Air Cleaner | Integral Cyclonic Air Filter |
| Ignition System | Computer Controlled Electronic Ignition |
| Lubrication System | Full Pressure Lubrication with Oil Filter |
| Length (in) | 19.3 |
| Width (in) | 17.6 |
| Height (in) | 15.7 |
| Weight (lbs) | 86.5 |
| Certified Power Rating | Download Power Curve |
| Commercial Engine Warranty** | 3-Year Limited |
| Operator's Manuals |
*All power levels are stated gross HP at 3,600 RPM per SAE J1940.
**See operator's manual or dealer for complete warranty details.
***Three-year commercial limited warranty applies to engines manufactured after June 30, 2017.
Support

Manuals
Download the operator's manual or illustrated parts list for your Vanguard™ engine by searching your engine model number.

Tips & Troubleshooting
Have a question? Search our Frequently Asked Questions to find answers related to model specifications, routine maintenance, repair or troubleshooting.

Dealer Locator
World class parts delivery, industry-leading global warranties and unparalleled service & training keeps your equipment out of the shop and on the jobsite.

Commercial Limited Warranty
Three-year commercial engine warranty for all applications. See operator's manual or dealer for complete warranty details.
Product Literature

Learn more about Briggs & Stratton® CXi Series V-twin engines by downloading our literature here.