Mercury-Mercruiser 8M0124034 4.3L 4BBL CRATE ENGI
Is no longer available
Manufacturer part number: 8M0124034
Normally Ships: NOT IN STOCK, NO LONGER MADE - WE DO NOT HAVE ANY
225 HP @ 4800 RPM 100% New Crate Engine
This all new construction 4.3L crate engine is a universal power upgrade for V6 sterndrive and inboard marine engines regardless of make built between 1996‑2015
Features: 4bbl 600 cfm marine carburetor, high torque aluminum intake manifold with bronze pads and water crossover, electric fuel pump, and aluminum oil pan.
This is 100% new construction, and uses cast iron cylinder heads and block, 9.4:1 pistons, and 1.5:1 roller rocker arms. Audio warning horn for overheat, low oil pressure, and low drive lube levels. It uses Thunderbolt ignition with Alpha shift interrupt and 10‑Pin Harness.
3‑Years of Limited Factory Warranty. Runs on 87 Octane Fuel.
If metric fasteners are required for installation, order fastener kit # 56‑861937A1.
Serial numbers 1A063239 and below may need extra components to convert over.
| Power | 225 HP |
| Full Throttle Range | 4400-4800 RPM |
| Displacement | 265 CID (4.3L) |
| Engine Type | Marine V6 with iron block and heads |
| Bore & Stroke | 4.02" x 3.48" (102mm x 88 mm) |
| Compression Ratio | 9.4:1 |
| Rocker Arm Ratio | 1.5:1 Roller Rocker |
| Cranktrain | Nodular Iron Crankshaft and Powder Metal Rods |
| Fuel Requirement | 87 Octane (R=M)/2 |
| Fuel System | Weber 600 CFM 4V Electric Chock Carburetor & Electric Fuel
Pump |
| Induction System | Exclusive aluminum 2-plane intake with bronze eater passages and pads |
| Ignition System | Thunderbolt V |
| Charging System | Not Installed |
| Water Drain System | Not Installed |
| Exhaust System | Not Installed |
| Cooling System | Marine Circulating Water Pump included |
| Accessory Drive System | Not Installed |
| Lubrication System | High Flow Oil Pump |
| Recommended Engine Oil | SAE 25W40 NMMA Certified FC-W Synthetic Blend |
| Audio Warning System | Not Installed |
| Alpha Gear Ratios | 1.62:1, 1.65:1, 1.81:1 & 1.84:1 |
| Shipping Dimensions ILxWxlI] | 37' x 35- x 34" (940rnrn x 889mm x 864mm) |
| Shipping Weight I lbs/kg] | 510 / 231 |
