Mercury Mercruiser Engines

MerCruiser Turn-Key Starting (TKS) 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.
RELIABILITY 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 PERFORMANCE 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 EASY OWNERSHIP 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 TECHNOLOGY 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 Power 190HP (140 KW) Full Throttle Range 4400 - 4800 RPM Displacement 262 CID (4.3L) Engine Type V6 Bore & Stroke 4.00" X 3.48" (101mm X 88mm) Compression Ratio 9.4:1 Fuel Requirement 87 Octane (R+M)/2 Fuel System 2V Carb with Turn Key Start & Electric Fuel Pump Induction System Dual Plane Iron Intake Manifold Ignition System Thunderbolt V Charging System 65 Amp/917 Watt Alternator Water Drain System Multi Point Drain - Hand Removable Blue Drain Plugs Exhaust System EDP Coated Iron Manifold with EDP Coated Dry-joint Elbow Cooling System Thermostatically Controlled, Raw Water Accessory Drive System Serpentine Belt Recommended Engine Oil Mercury MerCruiser Full-Synthetic Engine Oil, 20W-40, NMMC FC-W rated Engine Guardian System Low Oil Pressure, High Coolant Temperature, Low Drive Lube Alpha Ratios 1.62, 1.81, 2.0(H) Bravo One Ratios N/A Bravo Two Ratios 2.00, 2.20 Bravo Three Ratios 2.20, 2.43 Dimensions (LxWxH) in 28 x 30 x 21 Dimensions (LxWxH) mm 696 x 740 x 533 Weight w/ Alpha (lbs./kg) 848/385 Weight w/ Bravo One (lbs./kg) N/A Weight w/ Bravo Two (lbs./kg) 893/405 Weight w/ Bravo Three (lbs./kg) 902/410 Optional Freshwater Cooling Available

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