Description

TYM T303, T353 2008 Parts Catalog – OEM Factory Part Numbers and Exploded Diagrams

You’ve got a TYM T303 or T353 compact tractor sitting in the shop, and the clutch pedal is mushy. You pull the old release bearing, take it to the parts counter, and the guy hands you something that looks close but doesn’t fit. Sound familiar? That’s because aftermarket catalogs guess. They use generic cross-references and hope you don’t notice the 2mm difference in the bore. If you’ve been wrenching on these Korean-built tractors for any length of time, you already know: without the factory part number, you’re gambling. And gambling costs you billable hours and customer trust. TYM T303, T353 2008 Parts Catalog is the only document that gives you the exact OEM numbers for every nut, seal, and gear in these machines. No guesswork, no returns.

Engine S4L and S4L2: Complete Parts Breakdown for the 1.3L and 1.5L Diesels

The S4L and S4L2 engines are the heart of these tractors. GROUP 01 in this catalog breaks down every internal component: pistons, rings, cylinder head, oil pump, and the timing gear train. Need the part number for the front crankshaft seal? It’s listed with a figure reference so you can visually confirm you’re ordering the right one. The catalog also includes the engine accessories group (GROUP 02) covering the alternator, starter, injection pump, and all the brackets. I’ve seen guys order a water pump for a T353 only to find it’s a different impeller design than the T303 – the exploded diagram on the engine pages makes that obvious before you hit “buy.”

Clutch, Brake, and Steering – Where the Wear Happens

GROUP 03 covers clutch, brake, and steering components. This is where most of the callbacks happen. The manual shows the clutch disc, pressure plate, release bearing, and pilot bearing with separate part numbers for the T303 and T353 (they are not interchangeable on the spline). Brake pads, return springs, and the steering column assembly are all called out with quantities. If you’re doing a brake job on a T303, you’ll see the exact number of shims needed – no more, no less. The OEM torque values aren’t in this parts catalog (that’s in the service manual), but the part numbers are the foundation for any repair. Order the wrong seal kit and you’ll be pulling the axle again next month.

Transmission and Front Axle: Don’t Guess the Bearing Numbers

GROUP 04 (transmission) and GROUP 05 (front axle) are the thickest sections in this 219-page document. You get the full gear train, synchro assemblies, shift forks, and housing gaskets. I’ve had a tech rebuild a T353 transmission with a mismatched bearing because the aftermarket cross-reference said “equivalent” – it wasn’t. The front axle section lists kingpin bearings, spindle bushings, and the differential case halves. For the T303, the front axle is a different assembly than the T353 (different axle housing casting). This catalog shows both configurations side by side. Pay attention to the “Ref No.” column – it links the exploded view to the part number list. That’s how you avoid buying a left-hand steering knuckle when you need the right side.

9 Groups of Content: From Foreword to Weight Labels

The catalog is split into 9 main groups: 00 Foreword, 01 Engine, 02 Engine Accessories, 03 Clutch/Brake/Steering, 04 Transmission, 05 Front Axle, 06 Hydraulic 3P Link, 07 Sheet Metal, 08 Electrical, and 09 Weight Label/Tools. That’s right, nine groups covering every physical component on the tractor. GROUP 08 (electrical) includes the wiring harness, switches, gauges, and the entire lighting system – with part numbers for the headlamp assemblies and the alternator voltage regulator. GROUP 06 (hydraulic 3P link) gives you the lift arm pins, top link, and cylinder seals. If a customer complains the three-point hitch drifts down overnight, you’ll need the exact packing set number from this section. The manual even lists the weight labels and tool kit contents in GROUP 09. Don’t throw away that original toolbox without checking if the jack handle is still available.

Why OEM Factory Documentation Beats Aftermarket

This is not a reprint from a third-party aggregator. This is a direct scan of the original 2008 TYM publication printed by Tong Yang Moolsan Co., Ltd. The part number of this book is 13019400020. Aftermarket sites often use photos from one model year and apply them to another. Here, every number corresponds to the T303 and T353NC chassis built in 2008. The exploded diagrams are crisp, the Chinese and English labels are legible, and the revision date is printed on every page. I’ve been an ASE Master for 28 years – I’ve seen what happens when a shop relies on a generic online parts lookup. You get a box of wrong parts, a pissed-off customer, and a black mark on your reputation. This catalog eliminates that variable. For more background on why OEM documentation matters in agricultural equipment, check the Automotive Industry Overview and the Automotive Industry Overview for context on supply chain standards.

If you own a T303 or T353, this parts catalog belongs next to your service manual. It’s the only way to guarantee you order the correct bearing, gasket, or hydraulic seal the first time. Related documents you should have in your library include the TYM T303, T353 Operators Manual – Factory Specs for Safe Operation, the TYM T303, T353NH 2008 Parts Catalog – 213 Pages of OEM Parts Breakdown, and the TYM T303, T353 2008 Parts Catalog – OEM Factory Manual. Each covers a different angle – the operator manual gives you fluid specs and maintenance intervals, while this parts catalog gives you the numbers to order the parts.

Does this catalog contain torque specifications or repair procedures?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded diagrams. For torque values and step-by-step disassembly, you need the corresponding workshop manual.

Will this work for my TYM T303 built in 2009?

This edition is dated 2008. TYM sometimes made mid-year changes. Compare the part numbers on your tractor to the figures in this catalog. Most 2008-2010 T303s share the same major components, but I’ve seen differences in the steering column seal kit for later builds. Check before ordering.

How do I find a part if I don’t know the group number?

Start with the “Identifying Group Symbol Illustration” on page 3 of the PDF. It shows a drawing of the tractor with group numbers overlaid on each section. Find where your part lives on the tractor, then jump to that group. Each group has its own table of contents. Page references are listed for every assembly.

Is this the same as the Korean-language catalog?

This version has the original Korean text alongside English part descriptions and numbers. The exploded diagrams use numeric callouts that are language-independent. The part numbers are universal. You don’t need to read Korean to use it – just match the numbers to the illustration.

You’ve got a tractor to fix and a customer waiting. Stop wasting time on wrong parts. Access the Factory Manual now and get the right OEM part numbers on your bench in five minutes.