Cub Cadet 125 Parts Catalog – Factory OEM Parts Breakdown

Ordering the wrong part for a Cub Cadet 125 because some third-party site listed a mismatched number costs time and cash. That frustration stops here. This Cub Cadet 125 Parts Catalog is the exact factory document used by dealers — 65 pages of original part numbers, exploded diagrams, and hardware callouts. No aftermarket reinterpretation, no guesswork on thread sizes or fastener lengths.

Page 2 shows the battery holder assembly. Ref #1 is IH-376294-R2, the battery hold-down bolt. Wing nut KH-X-276-7. Clamp IH-376293-R2. You get the factory part number, quantity, and whether it’s a service part (S), production part (P), or both. That level of detail matters when you’re hunting down a forty-year-old fastener and you need the right thread pitch.

Battery Holder Section: Exact Mounting Hardware

The battery tray on a 125 gets corroded fast. Acid seepage, vibration, loose clamps. This catalog gives you the correct clamp and hold-down bolt part numbers so you replace what’s actually worn, not what looks close. Page 2 lists the nut as a 1/4-20 wing nut — standard hardware, but the OEM part number lets you cross-reference if you want a perfect restoration. For a daily driver tractor, you can source locally, but knowing the exact spec keeps you out of the bin of mismatched junk.

Brake & Connections: Identifying the Right Discs and Pins

Page 3 breaks down the brake assembly. Brake disc assembly IH-384717-R11, lining disc IH-384719-R2, retainer IH-384720-R2. The riveted parts? The catalog shows which components come as separate service items versus an assembly. Too many mechanics order the whole disc when only the lining is shot. That wastes money. Here, you can buy the IH-384719-R2 lining disc alone — two required per side. Also, the pedal assembly is marked ~NLA (no longer available), which tells you upfront not to waste time calling around. That’s information you pay for either way — better to get it from a $20 manual than a three-hour wild goose chase.

Carburetor Breakdown: 30+ Parts Illustrated

Page 5 lays out the carburetor with 35 reference numbers. If your 125 surges or won’t idle, you can pinpoint the exact gasket, jet, or linkage part. The diagram shows the throttle shaft, float bowl, needle, and all those tiny springs that fly across the bench when you sneeze. Having the OEM part number means you order the correct kit the first time. No returns, no waiting another week for a second shipment.

Why a Factory Parts Catalog Beats Aftermarket Lists

Aftermarket catalogs often combine numbers from multiple revisions or just guess based on a photograph. This is a direct scan of the Cub Cadet factory publication. The part numbers match what the dealer used in the 1960s and 70s. If a part supersedes, the listing will show it — or mark it NLA when it’s gone. You can’t get that accuracy from a condensed online lookup. For restoration work or keeping a working tractor in the field, that distinction saves you from bolting on the wrong brake disc or a carburetor that doesn’t clear the frame.

5 Systems Covered in This Document

The catalog organizes the Cub Cadet 125 by major assemblies: battery holder, brake system, carburetor, steering, and driveline (based on typical 125 content). Each section gives a numbered parts diagram, a table with reference number, OEM part number, quantity, and description. Over the 65 pages you get the complete hardware breakdown for a garden tractor that’s been out of production for decades. That makes it a reference you keep next to the bench, not a PDF you have to scroll through on a phone while grease covers the screen.

Use the Brake Section to Pinpoint Wear Parts

If your 125 won’t stop or the pedal feels mushy, the brake section (pages 3-4) shows you the disc, lining, retainer, and spring. The clutch pedal return spring IH-370278-R1 is listed separately — that’s the one that snaps when you lean on the pedal. Order it direct. The brake rod assembly is marked ~NLA, meaning you’ll need to fabricate or source used. Knowing that before you tear it apart is worth the price of the manual alone.

Who Needs This 65-Page Parts Catalog?

Three types of people: a home garage enthusiast restoring a Cub Cadet 125 for weekend shows, a small engine shop that sees these tractors weekly, and a collector who needs to verify every fastener matches the factory build. This catalog does not include repair procedures — it’s a parts reference. Pair it with a service manual for torque specs and disassembly steps. For identification and ordering, it’s the definitive source. Cub Cadet 21121C29025 Parts Catalog – 73 Pages of Factory Specs covers a different model but uses the same format. If you work on multiple Cub Cadets, Cub Cadet 984 Parts Catalog – 128 Pages of OEM Factory Parts Breakdowns gives even more coverage. For the smallest lawn tractors, Cub Cadet 81, 21121C290248 Parts Catalog – OEM Factory Breakdown is a close match.

Understanding how these tractors fit into the Automotive Industry Overview helps you appreciate why OEM documentation matters — factory tolerances and part numbering systems come from a time when tractors were built to be rebuilt, not thrown away. The Automotive Industry Overview context is useful, but the real-world value is in your hands with this catalog.

Does this parts catalog include torque specs or repair instructions?

No. This is a parts catalog — it lists part numbers and quantities, not service procedures.

Can I use this to find parts for my 125 that was built in 1970?

The Cub Cadet 125 was produced from 1969 through 1971 with minor variations. This catalog covers the entire production run. Some parts marked NLA (no longer available) will need to be sourced used or cross-referenced. The part numbers here are the factory originals — if a number has been superseded, the catalog may not show the newer replacement. Always check with a Cub Cadet dealer or online parts lookup using the number shown. For a 1970 build, this is the correct base reference. Combine it with a current dealer database for supersession history.

Stop hunting through blurry online listings and incomplete cross-references. This 65-page factory parts catalog puts every OEM number for your Cub Cadet 125 on your screen. Download the Factory Manual now and start ordering the right parts.