Zetor 4911, 5911, 6911, and 6945 Tractor 1977–1980 Parts Catalog OEM

• Covers the 1977–1980 Zetor 4911, 5911, 6911, and 6945 tractor series.
• Originally sourced from the Agroservis technical repository, documenting engine, fuel, cooling, and transmission sub-assemblies for accurate repair planning.
• Contains 48 exploded-view diagrams with complete part-number cross-referencing.

This 344-page factory parts catalog is the definitive reference for mechanics and owners needing to identify original OEM numbers for the Zetor lineup. It documents critical engine internals, including crankcase assemblies, valve gear arrangements, and crankshaft mechanisms. Exploded views give you a clear visual breakdown of assembly relationships, allowing you to pinpoint exact seals, gaskets, pistons, rings, and connecting rod bearings. The documentation also covers the cooling system and fuel supply lines, detailing the specific routing and mounting hardware for injection pumps and fuel filters.

Beyond the engine block, the manual breaks down transmission and clutch configurations, including the dual-clutch assembly and gear-shifting mechanisms. Knowing the correct factory part numbers is crucial for an effective repair strategy, especially when sourcing internal timing gears or compressor assemblies. For heavy-duty operations, the catalog notes that mounting bolts across the main assembly require 200 Nm of torque. Critical operating gaps are specified at 0.5 mm, while engine rotational velocity is optimized at 1200 rpm for efficient field use. Please note: Always ensure your equipment is fully stabilized and hydraulic pressure is relieved prior to inspecting or dismantling any major driveline components.