2026 Mercury Marine® 4.3L Alpha® 4V Base
- Year 2026
- Make Mercury Marine®
- Model 4.3L Alpha® 4V
2026 Mercury Marine® 4.3L Alpha® 4V Base
2026 Mercury Marine® 4.3L Alpha® 4V
Best Value on the WaterMercury remanufactured engines are factory refurbished with new components featuring the latest specifications and the newest technology, allowing you and your boat to benefit from improved power and reliability for less than the cost of a new engine.
Backed with ConfidenceAll Mercury remanufactured engines are backed by a one-year limited factory warranty. Mercury Product Protection is also available to provide up to an additional two years of coverage.
A Greener SolutionEngines from Mercury Remanufacturing reduce environmental impact by recycling and reusing major components brought back to OEM specifications. This reduces wasteful scrapping and lowers the energy and resources required to manufacture new parts.
Features may include:
Plus-Series Alpha- With more power and better fuel economy than a 5.0L V8, the 4.3L Alpha® 4V 225hp engine is an ideal choice to repower an 18-to 20-foot runabout.
Dimensions
Dimensions
LxWxH: 28" x 30" x 22" (696mm x 740mm x 559mm)
Capacities
Cooling System
Thermostatically Controlled Raw Water - 160 degrees F
Weights
Weight
Engine: 782 pounds (355kg)
Engine
Engine Type
Remanufactured V6 Iron Block
Engine Power
225HP (168kW)
Ignition
System: EST
Lubrication
System: High-Flow Oil Pump
Bore
4.030" (102mm)
Stroke
3.480" (88mm)
Induction
System: Dual-Plane Aluminum Intake with Bronze Crossover and Pads
Compression Ratio
9.4:1 | Rocker Arm: 1.5:1
Throttle
4200-4600 RPM
Exhaust
System: Iron Manifold with Wet-Joint Exhaust Elbow
Drivetrain
Drive System
Accessory: Serpentine Belt
Battery
Charging System
65 Amp/917 Watt Alternator
Electric
Audio System
Warning: Oil Pressure, Coolant Temperature, Drive Lube
Fuel System
Fuel System
600 CFM Weber Carburetor with Electric Fuel Pump and Choke | Requirement: 87 OCTANE (R+M)/2
Features
Features
Water Drain: System Multi-Point Drain - Hand-Removable Blue Drain Plugs | Alpha Ratios: 1.62:1, 1.81:1 High Altitude
Oil Type
Recommended Engine: SAE 25-40 NMMA Certified FC-W Synthetic Blend