Mercruiser Sterndrive 3.0L TKS – MERCRUISER TURN-KEY STARTING (TKS) STERNDRIVE ENGINES feature the patented, MerCruiser-exclusive TKS System, which offers fuel-injection convenience in a carburetted engine. No more choking, priming or pumping – just turn the key and go.
| Power | 135HP (101kW) |
| Full Throttle Range | 4400 – 4800 RPM |
| Displacement | 181CID (3.0L) |
| Engine Type | I4 |
| Bore & Stroke | 4.00″ X 3.60″ (101mm X 91mm) |
| Compression Ratio | 9.3:1 |
| Fuel Requirement | 87 Octane (R+M)/2 |
| Fuel System | 2V Carb with Turn Key Start & Mechanical Fuel Pump |
| Induction System | Single Piece Iron Intake-Exhaust Manifold |
| Ignition System | EST Analog with Distributor |
| Charging System | 65 Amp/917 Watt Alternator |
| Water Drain System | Quick-Disconnect Drain Hoses with Flush Feature |
| Exhaust System | Iron Manifold with EDP Coating |
| Cooling System | Thermostatically Controlled, Raw Water |
| Accessory Drive System | V-Belt |
| Optional Power Steering | Available |
| Recommended Engine Oil | MerCruiser Full Synthetic Engine Oil – SAE 20W-40 |
| Engine Alarm System | Low Oil Pressure, High Coolant Temperature, Low Drive Lube |
| Alpha Ratios | 2.0(P), 2.40 |
| Dimensions (LxWxH) in | 29 x 26 x 21 |
| Dimensions (LxWxH) mm | 730 x 660 x 533 |
| Weight w/ Alpha (lbs./kg) | 635/288 |
| Optional Freshwater Cooling | Available |