4.3 TKS

- 190 hp

This popular model powers everything from family runabouts to houseboats. Its smooth power delivery and excellent fuel economy make it a great choice for boaters who want lots of torque without the extra weight or size of a V-8. The 4.3 TKS features MerCruiser's exclusive Turn-Key Start (TKS) system. This patented feature eliminates the hassle of starting a cold engine. Simply turn the key – no choke, pumping or priming are required. The entire MerCruiser gas lineup features Turn Key Starting. No other engine manufacturer can match that.

• Thunderbolt V Hi-Energy Ignition and platinum-tipped spark plugs ensure reliable starts
• Dry-joint exhaust eliminates the chance for water to enter engine through leaky gaskets
• Water-separating fuel filter helps protect fuel system and engine against damage
• Industry-exclusive 3-year limited corrosion failure warranty
• Proven GM cast iron block V6 power for years of reliable operation
• EDP-coated exhaust elbows resist temperature and corrosion for long life
• Serpentine belt system for longer belt life

• Dual Plane intake manifold for improved fuel atomization means more power & torque
• Revised fuel calibration for more crisp acceleration and improved running quality
• Standard anti-feedback power steering helps reduces operator fatigue and makes boat handling a breeze
• Low restriction flame arrestor for added horsepower and torque

• 3-year/300 hour maintenance interval on many periodic service items saves time and money
• Easy Oil Drain system is cleaner and makes periodic service simple and less work
• Color-coded service points makes checking fluid levels simple and straightforward
• Operates on easy to find, less expensive 87 octane fuel
• Engine-mounted drive lube monitor for easy lube check or add from inside the boat
• No tools required to drain water from engine with blue drain plugs

• Turn Key Starting for easy starts, cold or hot, every time with no choking or priming
• Helm-mounted Audio Warning System monitors oil pressure, engine temperature and drive lube level and provides instant alarm if any of these vary from normal range
• MerCathode galvanic corrosion prevention system standard on Bravo models, available on Alpha models, offers unmatched active electronic corrosion protection
• Large 65 Amp alternator provides plenty of power for popular onboard electronics