Description

Cub Cadet GT3100 Parts Catalog – OEM Factory Parts Breakdown

If you are tracking down a part for a Cub Cadet GT3100, you need more than a name. You need the factory number. I have seen guys slap on a generic air filter that chokes the engine because the spec was off. This Parts Catalog gives you the exact Kohler numbers – not aftermarket cross-reference guesses. 67 pages of exploded views and part lists. That is what you take to the counter.

Air Intake System – Page 1 Breakdown

Page 1 shows the air intake from the cover down to the manifold. Ref #9 is the precleaner element (KH-24-083-02) – that is a regular service item. Ref #10 is the main element (KH-47-083-03). Both are marked S (service part). You want the correct screw lengths too: M6x16 for the bracket (Ref #11) and M5x10 for the air cleaner base bracket (Ref #23). Mix them up and you strip the threads or leave the cover loose. The diagram ties each fastener to the part number. No guessing.

Blower Housing and Baffles – Page 3

Page 3 covers the blower housing and cylinder baffles. The GT3100 uses a Kohler engine with two cylinders, so you have valley baffles (Ref #9 and #11) and cylinder barrel baffles (Ref #8 and #12). Backing plates (#6 and #13) are side-specific. If you order the wrong backing plate, you fight it for an hour. The catalog lists the screw mix: M5x16, M5x20, M6x16. Each with a quantity count.

Brake and Control Pedals – Page 5

The brake and control pedal assembly takes up page 5. Forty-nine part numbers in one drawing. Springs, bushings, pins – all cross-referenced. If your pedal feels sloppy, you can look up the bushing (Ref #24 likely) and get the exact dimensions. That beats calling a dealer and describing “the little round thing.”

67 Pages of Factory Part Numbers

This is not a condensed list. 67 pages cover the entire tractor – from the air intake to the deck drive, the fuel system, wiring harness components, and the hydrostatic transmission. Every page has a diagram, a reference number column, the part number, the quantity, and a service/footnote indicator (S, P, or F). You get the same information the dealer uses.

OEM vs Aftermarket: Why It Matters

Aftermarket parts catalogs sometimes combine model years or omit supersessions. This is a factory Cub Cadet publication. The numbers in here are what Kohler and Cub Cadet shipped. If a part has been updated, the catalog shows the new number. I have seen too many techs use a third-party list and end up with a fuel line that is two inches too short (Ref #15 on page 1 – KH-15-353-02 – that 17″ line needs to be exact). Stick with OEM documentation.

Who Needs This Parts Catalog?

If you own a Cub Cadet GT3100 and you want to order parts without pulling the old one and hoping, this is your book. Home garage guys who hate returns. Small engine shops that need fast part lookups. Landscapers who want to keep a GT3100 fleet running. You will spend five minutes on page 1 to find the air cleaner kit (KH-24-743-08 includes the cover, knob, and seal) instead of browsing cross-reference websites.

Frequently Asked Questions

Does this catalog include service procedures or torque specs?

No, this is a parts catalog only. For torque values and repair steps, get the service manual for the Kohler engine and the Cub Cadet chassis.

Are the part numbers still current?

This publication is the original factory catalog. Cub Cadet may have superseded some numbers since printing. You can verify supersessions with the number shown. Most are still active.

Can I use this catalog for a different model, like the GT3200 or GT2000?

The GT3100 shares some components with other GT-series mowers, but many parts are unique. The deck, engine configuration, and control linkages differ. You risk buying the wrong part. Use the catalog only for the GT3100 unless you cross-check with the specific model’s diagrams.

How are the parts organized in the 67 pages?

By system – air intake, blower housing, brakes, controls, transmission, deck, etc. Each section starts on a new page with a labeled diagram.

Other Cub Cadet owners also look at Cub Cadet 21121C29025 Parts Catalog – 73 Pages of Factory Specs. And Cub Cadet 984 Parts Catalog – 128 Pages of OEM Factory Parts Breakdowns. For older models, Cub Cadet 81, 21121C290248 Parts Catalog – OEM Factory Breakdown. For more about the parts supply chain, see Automotive Industry Overview and Automotive Industry Overview.

Get your copy of the Cub Cadet GT3100 Parts Catalog now. Access the Factory Manual and keep it on your bench with a highlighter.