Description

Zetor 3320, 3340, 4320, 4340, 5320 2003 Parts Catalog – Factory-Correct Part Numbers

Twenty-eight years turning wrenches, and I can tell you that aftermarket parts catalogs are the reason you pull a crankcase half, find the seal is wrong, and waste a morning. This Zetor 3320, 3340, 4320, 4340, 5320 2003 Parts Catalog is the real deal. It came straight from the Zetor factory in 2003, printed on 475 pages. No photocopies, no third-party reprints. Every part number, every exploded view is what the assembly line used.

Engine Group Breakdown: Crankcase I and II

Groups 01 and 02 cover the crankcase in two sections. You get separate exploded views for the left and right halves. Need the main bearing cap bolts? The catalog tells you the exact Zetor part number. I’ve seen guys order a “compatible” bolt and snap it off at 40 ft-lb because the grade was wrong. Page 19 and 24 show the crankcase groups with callouts for every stud, dowel, and plug. Don’t guess – order the factory number from this book.

Crankshaft Mechanism: Page 29 Specs

Group 03 is the crankshaft mechanism. Page 29 gives you the complete assembly – crankshaft, connecting rods, bearings, seals. The catalog lists the part numbers for standard and undersize bearings. If you’re rebuilding a 3320 or 4340, you need these numbers to order the correct shells from your dealer. Aftermarket catalogs often list generic sizes that don’t match the factory clearance specs. This book eliminates that gamble.

Does This Catalog Cover the Cylinder Head?

Group 05 covers the cylinder head (hlava válce). Starts on page 36. You get the valve gear components, head gasket, injectors, and glow plugs. If you’ve ever ordered a head gasket by “engine model” and got the wrong thickness – this catalog stops that. The part number references the exact gasket for your 3340 or 5320. Cross-reference the engine serial number from the plate, and you’re done.

Fuel System and Lubricating System – What You Need

Groups 07 and 08 cover the lubricating system and fuel system. Oil pump, filter housing, fuel injection pump, lines – all with factory illustrations. For the 4320, the fuel system group includes the injection pump mounting brackets and delivery valves. I’ve used this catalog to find a banjo bolt that aftermarket suppliers claimed didn’t exist. It’s on page 44. Order the factory part and it threads in like it should.

Transmission Sections: Dual Clutch and Gearbox

Groups 11 (dual clutch) and 18/120 (gearbox and reverse gear) are critical when you split the tractor. The dual clutch exploded view on page 70 shows the friction discs, release bearing, and springs. The gearbox group on page 89 lists every gear, shaft, and synchronizer ring. If you’re rebuilding a 5320 transmission, you need these part numbers to avoid mixing up synchro sets between production years.

Source Authenticity – Why OEM Matters

This is a factory-authorized spare parts catalog, published 2003, in five languages (English, German, French, Spanish, Czech). The bookmark structure follows the original group numbering. I’ve seen aftermarket catalogs that re-index groups or leave out the explanatory notes (VYSVETLIVKY). Those notes tell you how part numbers are coded. Skip them and you might order a left-hand thread bolt for a right-hand application. This catalog includes the full front matter. For background on why OEM documentation matters in the Automotive Industry Overview, you’ll see that part traceability is a core principle.

3 Reasons to Order This Catalog Instead of a .PDF Rip

First, the page numbers match the factory layout. Group 03 starts on page 29, not page 17 like some scanned versions. Second, the image resolution is high enough to read part numbers on the exploded views – no guesswork. Third, it includes groups like 15 (turbocharging) and 21a (PTO pneumatic control) that many aftermarket catalogs cut out to save space. If you need the turbocharger assembly for a 5320 with the optional turbo, it’s here.

Get the Right Part Number the First Time

You can waste an afternoon chasing a part number on a forum or calling five dealers. This catalog ends that. Open group 12a (dry air cleaner, Donaldson) and you see the filter element number, the housing, and the pre-cleaner. For the 4320 with the oil bath cleaner, use group 12. The 5320 and 4340 also share some cooling system components (group 13). Having the factory illustration saves you from ordering a radiator that doesn’t line up.

If you need a similar catalog for a different model year, check the Zetor 3320 3340 4320 4340 5320 Tractor Parts Catalog 2002 and the Zetor Major 3320-7340 2002 Parts Catalog. For an operator’s manual to go with this parts catalog, see the Zetor 3320-5320 1996 Operators Manual – 260 Pages OEM.

For a deeper look at how OEM documentation supports repair work, read the Automotive Industry Overview.

Can I use this catalog for the Zetor 7340 model?

No. This catalog covers only models 3320, 3340, 4320, 4340, and 5320. The 7340 uses a different crankcase and turbocharger layout.

How do I find the correct part number for the water pump on my 4340?

Look up group 06 (Vodní čerpadlo / Water Pump). The exploded view shows the pump body, impeller, seal, and gasket. Each component has a part number listed adjacent to its callout. Compare the flange shape and bolt pattern on your tractor first – Zetor used two different pumps during production. The part numbers in this catalog include a date code suffix (e.g., -01) that indicates the supersession. If your pump has a casting number, match it to the illustration on page 42. Aftermarket catalogs often list only one pump for all years, which can lead to misalignment of the fan drive.

Bottom line: if you’re ordering parts for a Zetor 3320, 3340, 4320, 4340, or 5320, use the factory catalog. It’s 475 pages of OEM-sourced data. Access the Factory Manual now and keep it on your tablet or print the pages you need.