Mercury® Remanufacturing
Plus-Series Alpha Sterndrives

A line to repower sterndrive boats with value performance.

Ready to pair up with an Alpha® drive.

See All Models and Specs

3.0 Alpha® TKS

3.0 Alpha® TKS

135 Crankshaft Horsepower

The ideal repower for your runabout or pontoon boat using the classic front engine mount system. No Power Steering - The best value available with Turn Key Starting.

350 MPI Alpha

350 MPI Alpha

300 Crankshaft Horsepower Thanks to its size and power, this is the ideal replacement engine for 5.0L, 5.7L, 5.0 MPI and 5.7 EFI engines that power cruisers, small boats and large runabouts.

Specifications

Mercury® Remanufacturing: Plus-Series Alpha Sterndrives

  • Part number
    • 863611R11
    HP / kW @ flywheel
    • 300 / 224
    Maximum RPM (WOT)
    • 4600 - 5000
    Engine type
    • V-8 Remanufactured Iron Marine Block
    Displacement (CID/L)
    • 355 / 5.8
    Bore and stroke
    • 4.03 x 3.48" / 103 x 88 mm
    Compression ratio
    • 9.4:1
    Fuel ethanol tolerance
    • Up to 10%
    Engine control system
    • ECM 555 W/Knock Control & Crankshaft Trigger
    Fuel delivery system
    • GEN II Cool Fuel with Boost Pump
    Fuel injection system / carburetor type
    • Multi-point electronic fuel injection (MPI)
    Air induction
    • Two-piece long runner intake with 75 mm throttle body (80 mm w/DTS)
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • Multi-point drain
    Exhaust system
    • Iron manifold with Dry-Joint Exhaust Elbow
    Cooling system
    • 160F Raw Water Alpha
    Accessory drive system
    • Serpentine belt
    Lubrication system
    • High Flow 60 psi Oil Pump
    Recommended oil
    • Mercury MerCruiser Synthetic Blend 25W-40, NMMA Certified FC-W Synthetic Blend
    Pistons
    • Cast Hypereutectic Alloy
    Cranktrain
    • Powder Metal Rods and Nodular Iron Crankshaft
    Rocker arms
    • 1.5:1 Stamped Steel
    Dimensions (L x W x H)
    • 32 x 30 x 22" / 814 x 740 x 559 mm
    Weight (engine only)
    • 932 lbs / 423 kg
    Compatible drives (application dependent - contact sales or service)
    • Alpha 1.47:1
    • Alpha 1.81:1
    Print Compare With Other Products Request a Quote
  • Part number
    • 8M0072497
    HP / kW @ flywheel
    • 135 / 99
    Maximum RPM (WOT)
    • 4400 - 4800
    Engine type
    • Remanufactured 3.0L GM Inline-4 Marine Iron Block & Heads
    Displacement (CID/L)
    • 184 / 3.0
    Bore and stroke
    • 4.03 x 3.60" / 102 x 91 mm
    Compression ratio
    • 9.3:1
    Fuel ethanol tolerance
    • Up to 10%
    Engine control system
    • Distributor
    Fuel delivery system
    • 2V Merc Carb with Automatic Enrichment for Turn Key Starting with Mechanical Fuel Pump
    Air induction
    • Iron Manifold
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • EZ Water Drain
    Exhaust system
    • Iron manifolds with electro-deposition paint coated dry joint exhaust elbow
    Cooling system
    • 160F Raw Water
    Accessory drive system
    • V-Belt
    Lubrication system
    • High Flow Oil Pump
    Recommended oil
    • Mercury MerCruiser Synthetic Blend 25W-40, NMMA FC-W rated
    Cranktrain
    • Nodular Iron Crankshaft
    Rocker arms
    • 1.5:1 Stamped Steel
    Dimensions (L x W x H)
    • 29 x 22 x 21" / 730 x 565 x 526 mm
    Weight (engine only)
    • 567 lbs / 257 kg
    Print Compare With Other Products Request a Quote
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