John Deere 42 Inch Mower Deck Parts DiagramĪ John Deere 42 inch mower deck parts diagram is a tool that is considered the roadmap to the ultimate deck troubleshooting. Let’s not wait here anymore and get started to see the diagram in detail. Steering Type: Manual, Pinion and Sector.That’s why go through the following list to learn more about them. What Size Drive Belt is for a John Deere 42 Inch Mower?īefore you head towards the diagram, you must check out the John Deere 42 inch mower specs.How Fast Can a John Deere 42 Inch Mower Run?.John Deere 42 Inch Mower Deck Parts Diagram.