Description

Iseki TH4260, TH4290, TH4330 Parts Catalog

If you’ve ever ordered a part for a tractor and gotten something that doesn’t fit, you know the pain. That box arrives, you pull the old part, and the new one is off by a hole pattern or a thread pitch. Then you’re down another week waiting for a return. This Iseki TH4260, TH4290, TH4330 Parts Catalog is exactly what you need to stop that cycle. It’s the same printed material the dealer uses – 342 pages of exploded diagrams, part numbers, and interchangeability codes. I’ve been wrenching for 28 years, and I can tell you: a factory parts catalog is the difference between a one-hour job and a three-day headache.

What This Parts Catalog Actually Covers

This isn’t a service manual. You won’t find torque specs or step-by-step repairs here. What you do get is the complete factory parts breakdown for the Iseki TH4260, TH4290, and TH4330 tractors. Every component from the HST transmission to the mid-PTO, the double clutch, the double spool valve, and the front/rear hitch with ROPS. The catalog breaks down by model type codes (F for 4WD, H for HST, M for mid-PTO, D for double clutch, W for double spool valve, R for hitch/ROPS) and area code E4 for Europe. That level of specificity means you order the exact part for your exact machine, not a cross-referenced guess.

Page 1 lays out the head paragraph explanation – how to read the key numbers, which parts are standard (V and W prefixes), and what LH/RH mean relative to machine direction. That page alone will save you from ordering a mirror-image bracket that won’t bolt up.

Interchangeability Codes (ITC) – Why They Matter

The catalog uses a three-code ITC system. Code 1 means old part supersedes to new – you can use the new number in place of old. Code 2 means old part replaces new – if you have the older number, it still works. Code 3 means no interchange – old and new are not compatible. I’ve seen guys order a “supercession” part without checking the ITC code, then wonder why the fuel filter doesn’t thread on. Page 2 explains this in plain English. Memorize those codes before you order anything.

Color Codes and Serial Number Locations

Page 3 lists the factory paint colors: Mirror Black (7F), Sunset Gray (5I), Neo Blue (4L), Summer White (6G), each with spray and drum parts codes. If you’re doing a restoration or a panel replacement, that saves a trip to the paint store mixing custom colors. The catalog also tells you exactly where to find the serial numbers: for the engine, it’s stamped on the cylinder block (see Fig. 5-1); for the chassis, it’s on the label. Use the serial number in the lower column of the parts list – it separates pre-229 and post-230 machines. A minor detail that can mean a different hydraulic pump or control valve.

Parts Ordering – How to Use This Manual

Every part number in this Parts Catalog is registered in the ISEKI online computer system. When you call a dealer, you need that 10-digit number, not the diagram reference. The manual gives you both – the Fig. No. and the part code. Key column numbers reference the illustration. Look for the letter indicators: * means standard part, T means option, R means replacement. There’s also an AR quantity for parts that need adjustment (like shims). And the GRP column shows which parts can be ordered as a set – marked by circled letters A, B, C, etc. That’s critical for ordering complete seal kits or bearing assemblies instead of piecing them out.

If you’re working on a TH4260 and need the engine mount set, flip to the engine group, find the Fig. No., and match the key number. Cross-reference the serial number range. Then call your supplier with the exact part number. No returns. No wasted downtime.

Audience: Who Needs a Factory Parts Catalog?

DIY owners of the TH4260, TH4290, or TH4330 who do their own maintenance. Small farm operators who can’t afford a wrong part. Dealer parts counter guys who want a printed backup to the online system. If you’re replacing a clutch, a PTO seal, or a steering cylinder, you need to see the assembly layout and the part numbers for every spring, snap ring, and o-ring. Aftermarket catalogs often group parts by generic category or skip the smaller components – this factory catalog doesn’t. 342 pages, every fastener called out.

One caveat: because this is a European-area (E4) catalog, some optional equipment may differ from North American spec machines. But the standard chassis and engine parts are identical. Check the model type suffix on your tractor’s serial plate. If it has HST (H code) or mid-PTO (M code), you’re covered.

Source Validity – OEM vs Aftermarket

This is a direct factory PDF from ISEKI – not a reprint, not a third-party compilation. I won’t use aftermarket parts catalogs myself because they mix up part numbers and miss revisions. The original file name ISEKI_TH4260-TH4290-TH4330_Parts_Catalog_en-19214019806.pdf tells you it came from the manufacturer. The interchangeability tables and color codes are from Japan, not guessed by a writer in an office. That matters when you’re trusting a hydraulic hose to hold 2500 psi.

Related manuals you might need on the same tractor: ISEKI TH4260/TH4290/TH4330 Parts Catalog is this one. If you need the chassis breakdown in more detail, see Iseki TH4260/TH4290/TH4330 Chassis Parts Catalog. For actual service procedures, get ISEKI TH4260/4290/4330 Tractor Service Manual. And for an overview of how tractor documentation fits into the broader Automotive Industry Overview, that link gives context. Automotive Industry Overview also covers the standards these catalogs follow.

When you’re elbow-deep in a transmission teardown and you need the exact washer thickness for a shim stack, this catalog will tell you the part number and the quantity per unit. I’ve been using factory parts catalogs for decades, and I won’t touch a job without the right documentation. Access the Factory Manual and get the correct parts on the first order.