Description

Kubota D1105-BB-EC-1, D1105-BBS-EC-1, D1105-BB-EC-STD-3, D1105-BG2-SAE-1, D1105-BB-SAE-EC-1 1994 Parts Catalog

You pull an engine serial number off a D1105-BB-EC-1 and call the dealer, but the parts guy asks for a code no. You give him 16265-11000, he reads back a piston part number, and you still aren’t sure if it matches the ring set in your hand. That frustration — half-hour on hold, wrong gasket, return shipping — is exactly why this 92-page Kubota D1105 series Parts Catalog belongs on your bench. It was printed in June 1994, covers five specific model variants, and gives you the exact Kubota part numbers tied to serial number ranges. No guesswork. No cross-reference finger-crossing.

Engine Serial Number Breaks and Part Codes

Page 3 of this Parts Catalog lists each model with its factory code number. These codes are what Kubota uses internally to match engines to production batches. The D1105-BB-EC-1 gets code 16265-11000. The D1105-BB-EC-STD-3 is 16265-13000. The D1105-BB-SAE-EC-1 carries 16265-12000. The D1105-BBS-EC-1 uses 16266-11000. And the D1105-BG2-SAE-1 shows 17592-00000. Every single part in this catalog is referenced against those codes. If you try ordering parts without confirming your engine’s code, you risk a mismatch on pistons, rings, or cylinder head gaskets that changed mid-year. That’s the kind of waste this manual kills.

Reading the Illustrated Parts List: What Those Columns Actually Mean

Pages 4 and 5 lay out the notation system Kubota uses. Each figure number corresponds to a group name. The REF. No. column holds the location number within that figure. The PART No. column is your 11-digit Kubota part number — no aftermarket substitutions. The QTY column tells you how many come in the assembly. The S.No. (serial number) column indicates when a part was superseded. For instance, the piston (REF. No. 010) shows two part numbers — 15800-02001 for engines up to serial 15000, and 15800-2000-2 for 15001 onward. You need to know your engine’s serial number to pick the right one. The bracket of dotted lines around an assembly tells you that item isn’t sold separately; you order the whole sub-assembly. That’s information parts counter guys often gloss over.

Piston, Pin, Ring Assemblies: Serial Number Dependencies

Look at the example entries on page 4. The piston pin (REF. No. 020) shows two different part numbers depending on the engine serial range — the same split at 15000. The piston ring assembly (REF. No. 030) changes from 15800-2080-0 to 15830-2090-0 at that same break. If you order the ring set for a D1105-BB-SAE-EC-1 without checking the serial number, you could land the wrong end gap. The catalog also marks when a part is not sold independently — a dot in the Point column means you must buy the whole assembly. That saves you from ordering a single bolt that only comes in a gasket kit.

Does This Catalog Cover the D1105-BG2-SAE-1?

Yes. The model list on page 3 includes the D1105-BG2-SAE-1 with code 17592-00000. The same illustrated parts apply — the catalog is organized by engine group, not per-model section. So whether you need the cylinder head, injection pump, or oil pan parts for that engine, the illustrations and part numbers are shared across the D1105 family. The only differences are in the prefix and suffix codes tied to specific options like PTO or mounting flanges. The catalog handles all five variants in one volume.

3 Reasons to Choose OEM Documentation

First, aftermarket parts catalogs often omit the serial number breaks shown on page 4 — they just list a single part number that may or may not fit your engine. Second, the part numbers are guaranteed to match factory inventory. Third, the safety warnings embedded in the illustrations (like the assembly bracket rule) prevent you from ordering something that can’t be installed. Aftermarket cross-refs don’t show those constraints. That’s why I use OEM books like this one. Automotive Industry Overview includes a section on standardized part numbering — this catalog is a perfect example of that discipline.

Get the Right Part Number Before You Order

Use page 3 to confirm your engine’s code. Then jump to the relevant figure and cross-check the serial number field. Pull the PART No. and write it on the order slip. This catalog eliminates the back-and-forth with the dealer. It also serves as a record of how the engine was built — useful if you’re rebuilding an old D1105-BB-EC-STD-3 that has been sitting in a loader for twenty years. Automotive Industry Overview notes that OEM catalogs like this are the foundation of consistent repairs.

For related OEM manuals on other Kubota components, check out the Kubota V3300-T-E2B-EPS-1 Parts Catalog – 53-Page OEM Parts Breakdown, the Kubota YU4210, YW0981 Parts Catalog – 274-Page OEM Parts Breakdown, or the Kubota RCK60-27B Parts Catalog – 27-Page OEM Breakdown. Each follows the same numbering logic.

Will this catalog work for a D1105-BB-EC-1 ordered from a salvage yard?

Yes, if you can read the engine serial number plate. The model is listed with code 16265-11000 on page 3.

What about the difference between part numbers 15800-02001 and 15800-2000-2 for the piston?

Page 4 shows that the first piston (15800-02001) applies to engines with serial numbers up to 15000. The second piston (15800-2000-2) is for serial numbers 15001 and up. The S.No. column in the parts list indicates the change point. If your D1105-BB-SAE-EC-1 has a serial number after 15000, you need the -2000-2 piston. Ordering the wrong one will give you a different compression height or ring land location. Always verify your engine’s serial number before ordering; the catalog provides that cross-reference so you don’t waste time shipping the wrong part back.

Don’t trust a photocopy or an aftermarket reprint that blurs the serial number column. Access the Factory Manual directly in PDF format — you get the full 92-page original, the same one Kubota sent to dealers in 1994. Every part illustration, every code number, every assembly bracket. Stop ordering parts blind and start matching them exactly.