Mercury-Mercruiser 8M0187350 3.0L TKS 135 HP Crate Engine

8M0187350 100% NEW Quicksilver 3.0L TKS Crate Engine 3 Year Limited Factory Warranty

135 HP @ 4800 RPM. 181 cubic inch partially dressed marine engine. Replaces 2.5L, 3.0L and 3.0LX engines with a MerCruiser or Volvo Penta sterndrive. 

Engine Features: Turn Key Start Carburetor with Mechanical Fuel Pump and Flame Arrestor. 

Built with 100% new Quicksilver: cast iron block, large fillet radii crankshaft, Tri‑metal bearings, 9.3:1 hypereutectic pistons, revised TKS carburetor calibration, and 1.5:1 rocker arms. Quicksilver cylinder heads feature: hardened seats, screw in studs, Black‑X valves & an exclusive Quicksilver combustion chamber allowing 4 deg BTDC base timing. Content includes harmonic balancer, thermostat housing with 140F degree thermostat, NGK spark plugs, marine distributor, plug wires, exhaust elbow, sensors, audio warning horn for overheat, low oil pressure, and low drive lube levels. 

This engine uses EST Analog Ignition and includes a shift bracket for shift interrupt, and 14‑pin Harness. Compatible with front or side engine mounts. Pilot bore machined into crankshaft to accept dealer installed Volvo couplers. 

Runs on 87 Octane Fuel.

This all‑new construction 3.0L crate engine is for all makes of inboard and sterndrive 3.0L marine carbureted engines built since 1990 & up. This engine requires the installation of a 14" flywheel. A factory refurbished 14" flywheel 8M0135884 is available separately.

Crate engines require many more parts to be transferred from the engine being repaired or bought new before a boat can be made to go. This crate engine assembly lacks: a cooling system, engine mounts, fuel handling system, exhaust system, couplers, control mounting points, a starter, accessory drive, alternator, seawater pump, power steering and a flywheel.

This item requires payment via wire/ACH transfer.