Description

Kubota KX41H Parts Catalog

You tore down the top end on a KX41H and now you’re staring at a pile of pistons, rods, and a valve train that came apart faster than you expected. The parts book you grabbed from some forum has blurry page scans and part numbers that don’t match anything Kubota ever stamped. That mistake costs you a week and three wrong orders. This Kubota KX41H Parts Catalog — the actual OEM document, 257 pages — gives you the exploded views, the exact part numbers, and the supersession info so you don’t put the wrong bearing cap on the wrong journal. I’ve been wrenching since before half this site’s users were born, and I’ll tell you flat: you cannot rebuild a diesel with aftermarket parts lists. You need factory drawings.

Crankcase and Oil Pan: Where the Manual Begins

The first grouping in the catalog covers the crankcase and oil pan. On page 2 of the OCR you’ll see the crankcase assembly with reference 01S001 — that’s the foundation of the engine. The list includes seals, dowel pins, O-rings, and the water pipe. If you’re swapping a crankshaft, you need to verify which crankcase version your serial number falls under. The catalog breaks it into three variants based on serial range: up to 425160, 425161-559355, and 559356 onward. Each has a different part number for the complete crankcase assembly. Skip checking that, and you’ll order a housing that doesn’t align with your main bearing bolts.

What Does the Crankshaft Section Show You?

Page 5 (Kolben Kurbelwelle) gives you the piston and crankshaft assembly. This section lists the exact connecting rod bearing shells, thrust washers, and the crankshaft itself. Each part includes weight in pounds and kilograms — useful if you’re balancing a new assembly. The catalog uses what Kubota calls “Reference” numbers (01S003 for this section) so you can cross-reference back to the service manual if you need clearance specs. Pair this with the Kubota KX41H Parts Catalog to keep all your orders aligned with one document.

3 Reasons to Trust OEM Parts Catalogs

First, aftermarket catalogs often combine multiple engine families into one list, leading to mismatched cylinder head gaskets. Second, Kubota updates part numbers when they change suppliers or revise a component; the OEM catalog shows the current number plus superseded numbers. Third, the exploded views in this catalog are drawn to scale. You can compare the shape of a seal or a bracket against the real part and spot a difference before you pay for shipping. If you’ve ever ordered a “fits-all” glow plug and watched it pop out at startup, you know why this matters. The Kubota V3300-T-E2B-EPS-1 Parts Catalog – 53-Page OEM Parts Breakdown follows the same logic for a different engine family — no guesswork.

Cylinder Head and Valve Train: Exploded Views

The cylinder head section includes the head itself, the valve guides, seats, springs, and rocker arm assembly. Each valve part has a position number that corresponds to the illustration. For example, part number 16204-01610 is the oil pan, but the head section uses separate numbers. You’ll see the camshaft section right after the main bearing case — it’s separate from the injection pump camshaft later in the book. That’s important because the KX41H uses a different cam for the pump drive on some variants. The catalog lists both camshafts under different Reference numbers. Don’t mix them up or you’ll lose lift at the pump.

Identify Your KX41H Variant Using Serial Number Ranges

Throughout the catalog, you’ll see annotations like “<=425160" or ">=425161″ next to parts. These are serial number cutoffs. Kubota built the KX41H with multiple spec levels — KE, KDG, KUK, KTC, KCL, KTA. The manual separates parts for each. For instance, the dynamo section has a separate listing for KTA units. The bonnet, seat, and label sections also split by variant. If you ignore the serial number range, you’ll order a seat bracket that doesn’t fit a KTA chassis. The Kubota YU4210, YW0981 Parts Catalog – 274-Page OEM Parts Breakdown uses the same serial-number logic, so once you learn it here, you can apply it across other models.

257 pages, period. That’s the entire catalog — no abridged version, no missing pages. You get the full hydraulics, control valve spool sections, oil piping diagrams, and the electrical wiring page. Every page is a scan of the original Kubota document, not a re-typed list.

How the Hydraulic Sections Are Organized

The catalog devotes dozens of pages to the hydraulic system: pump housing, gear pump components, drive motor, swivel motor, control valves (with spool sections for bucket, boom, arm, travel, blade), and all the oil piping routes. The control valve 1 section is split between “EXCEPT KTA” and “KTA” because the valve body changes. Each spool section lists the O-rings, springs, and plugs inside. If you’re resealing a boom spool, the catalog shows the exact seal kit part number per spool. This is where Automotive Industry Overview standards come into play — OEM documentation avoids generic “universal” seals that leak under pressure. You won’t find any here.

FAQs

Does this catalog include torque specs or repair instructions?

No. This is a parts catalog — it shows assembly drawings, part numbers, quantities, and serial number breaks. For torque values and disassembly procedures you need the service manual. But without this catalog, you’re guessing which bolts to order.

How do I use the exploded view to find a part number for the water pump?

Go to the WATER PUMP section in the catalog. Each component is numbered with a position number (Pos.Nr.). Find the corresponding Art.Nr. (part number) on the same line. Cross-check the serial number range in the “I/C” column to confirm it matches your machine. The drawing shows the pump assembly with the housing, impeller, seal, and gasket. Order the complete assembly or individual pieces. Aftermarket catalogs often skip the gasket — this one lists it. For additional context, Automotive Industry Overview provides background on how OEM catalogs standardize part identification worldwide.

You can waste a week cross-referencing three different databases, or you can Access the Factory Manual and get the right part number the first time. Every time I’ve had a comeback because a junior tech ordered the wrong part, it traced back to a non-OEM source. Don’t be that guy. Get the factory book.