Mercury Mercruiser Engines

MerCruiser Turn-Key Starting (TKS) 5.7 TKS - 250 hp

Our largest carbureted engine, the 5.7 TKS is designed for boaters looking for lots of power and value. The big displacement V-8 power makes it perfect for boats in need of the extra torque that only cubic inches can provide. A great choice for everything from pontoons to express cruisers, the 5.7 TKS offers the value of a carbureted engine with user-friendly features such as our patented Turn Key Starting (TKS) system for instant no-choke starts, high-energy ignition, extended maintenance intervals and platinum-tipped spark plugs for crisp performance and long life.

   Mercury Mercruiser Engines Turn Key Starting TKS 5.7 TKS - 250 hp

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 V8 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 250 HP (184 kW)
Full Throttle Range 4400 - 4800 RPM
Displacement 350 CID (5.7L)
Engine Type V8
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 with Knock Control
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 1.47, 1.62, 1.81(H)
Bravo One Ratios 1.50, 1.65
Bravo Two Ratios 2.00, 2.20
Bravo Three Ratios 2.00. 2.20, 2.43(H)
Dimensions (LxWxH) in 32 x 30 x 22
Dimensions (LxWxH) mm 814 x 740 x 559
Weight w/ Alpha (lbs./kg) 946/430
Weight w/ Bravo One (lbs./kg) 987/449
Weight w/ Bravo Two (lbs./kg) 1004/456
Weight w/ Bravo Three (lbs./kg) 1013/460
Optional Freshwater Cooling Kit


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Bullock Marine offers new & used powerboats as well as performance boat accessories: skater, fountain, eliminator, Mercruiser Mercury Marine (competition - racers & performance propellers, Zero Effort Controls™, K-Plane™ high performance trim tabs, Mercury Racing Trim Indicators™, high performance engines, competition drive, etc.) cigarette boat, welcraft, scarab, donzi boats, catamaran raceboat, high speed twin hull, etc. Bullock Marine is an authorized dealer for Douglas Marine Skater Powerboat, Regy Fountain powerboat & sport boat, Eliminator powerboat & sport boat, and Mercury Mercruiser marine engines, Drive & accessories. Mercury Mercruiser HP 1075 SCi 1075 HP marine engines racing boats Mercury Marine HP 575 SCi 575 HP Sterndrives performance boat Mercruiser HP 525 EFI 525 HP race boat engine for sale powerboats Mercury Mercruiser HP 500 EFI 500 HP stern drives power boat Mercury Marine Scorpion 377 377 HP marine engines high performance boats Mercruiser 496 MAG High Output 425 HP Sterndrives sport boat Mercury Mercruiser 496 MAG 375 HP race boat engine for sale powerboat Mercury Marine MX 6.2 MPI Horizon 320 HP stern drives performance boats Mercruiser MX 6.2 MPI 320 HP marine engines power boats Mercury Mercruiser 350 MAG MPI Horizon 300 HP Sterndrives engines Mercury Marine 350 MAG MPI 300 HP race boat engine for sale mercruiser Mercury Drive Dry-Sump Six drive racing mercruiser powerboats mercury Bravo One XR Sport Master sport boat drives sport boat V SSM drive mercury race power boats III-A SSM drives mercury mercruiser racing boats Bravo One XR I.T.S.racing drive powerboat Bravo X Diesel mercruiser drives sport boats Bravo XR mercury drive for sale power boats Bravo X drives mercruiser boats Bravo mercury drive sales pleasure Alpha drive mercruiser boat

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