Johnson & Evinrude 2-Cylinder  1978-2005 40-60 HP Powerhead Parts Diagrams

This page features Johnson & Evinrude 2-cylinder powerhead internal rebuild parts specifically designed for 40–55 HP outboard engines manufactured from 1978 to 2005. Explore comprehensive internal parts—including pistons, crankshafts, gaskets, bearings, and complete powerhead kits—designed for routine overhaul or performance restoration. Complete with detailed diagrams, high-quality components, and user-friendly rebuild options, OBParts ensures durability, OEM fitment, and cost-effective maintenance for your classic outboard engine.

The diagram above is a Johnson & Evinrude 2 Cylinder 40-60 HP Powerhead Assembly from 1978-2005. The following parts correspond to the numbers on this diagram:

1. Thermostat Vernatherm
2. Head Gasket

We recommend the following items for this powerhead:

• Gasket Kit
• Carburetor Kit
• Fuel Pump Kit (1980-1984)
• Fuel Pump Kit (1985-1987)
• Fuel Pump Kit (1988-1989)
• Fuel Pump Kit (1990-2005)

The diagram above is a Johnson/Evinrude 2 Cylinder 40-60 HP Crankshaft Assembly from 1978-2005. The following parts correspond to the numbers on this diagram:

1. Rod Bearings
2. Wrist Pin Bearings
3. Upper Crank Bearing
4. Lower Crank Bearing
5. Center Main Bearing with Sleeve
6. Rod Bolts

We also recommend the following parts for this crankshaft assembly:

• Crankshaft Seal Kit
• (1978-1992)
• (1993-2003)
• Piston
• Trim Motor
• Starter Solenoid
• Starter