Cub Cadet 46B Parts Catalog – 53 Pages of OEM Part Data

Description

You’ve got a Cub Cadet 46B that’s down because you can’t find the right part. Or you’re staring at a stack of aftermarket listings that don’t match the bracket on your machine. I get it. That’s why the Cub Cadet 46B Parts Catalog exists. This is the factory document — 53 pages of exploded diagrams and part numbers straight from Cub Cadet. No guessing which bolt goes where. No cross-referencing junk catalogs. You open it, find the assembly, and order the exact piece.

Axles & Steering: The Core of This Catalog

Page 1 of the catalog kicks off with the Axles & Steering section. You get exploded views with reference numbers you can cross to the parts list on pages 2 and 3. The axle assembly (part 611-04063A) comes as a CV joint unit — the catalog tells you it’s serviceable (code S). You also see the differential assembly (618-04236) with three separate seal part numbers: seal, axle shaft (921-04005); seal, diff lock actuator shaft (721-0212); and seal, input shaft (721-04143). If you rebuild a diff without those seals, you’re leaking oil in a week. Don’t skip it.

Reading the Exploded Views

Each diagram shows a numbered bubble pointing to a component. The parts list below gives the Ref #, Part Number, Qty, Description, and a column marked S/P/F — Service, Production, or Field. Pay attention to that. A part marked S means you can order it over the counter. P means it came on the production line; F means installed in the field. For the 46B, many suspension components like the control arm assemblies (607-04163A) are listed as /P — production-only. That might mean you have to order the whole arm instead of a bushing. The catalog will tell you.

Part Numbers and Supersessions

Some parts show multiple entries for the same reference number. Look at brake hose: Ref 30 has two lines — right (727-04137) and left (727-04136), but the left says “Not Shown” in the diagram. That’s typical. The catalog includes every part, even if it’s hidden behind another view. Also watch for supersessions: if a part is discontinued, Cub Cadet may have updated it. This catalog reflects the version at print; the Automotive Industry Overview shows how standardization works, but Cub Cadet uses proprietary parts. Always check the latest service bulletin if you suspect a supersession. Automotive Industry Overview — same resource, but worth repeating: don’t assume a bolt from the bin matches the grade.

Why OEM Specs Matter for the 46B

You see fasteners like screw 710-04640 (3/8-18, 1.75″, gr5) and nut 712-04065 (flglk, 3/8-16, grf, nylon). That “gr5” means Grade 5 — 120,000 psi tensile. If you grab a generic Grade 2 from the hardware store, it’ll stretch and fail on a control arm. The catalog gives you the exact specification. That’s why you use the factory document, not a third-party copy. Aftermarket catalogs often omit grade markings or substitute metric equivalents. On the 46B, many fasteners are SAE. Mixing metric threads into SAE holes strips the threads — I’ve seen it. This catalog prevents that.

Fasteners: Getting the Right Grade and Thread

Page 2 of the catalog lists a dozen different screws and nuts. The screw 710-0852 is a rib neck stud, 7/16-14 x 1.6 inches. That stud holds the brake disc. If you put a standard bolt in place of a rib neck, it can spin in the hole. The nut 712-04109 is slotted, 22×1.5 — metric, for the axle hub. You need a cotter pin (714-0162, 5/32 x 1.25″) to lock it. The catalog notes “/P” next to parts — that means these are production parts; you can order them. Don’t lose that cotter pin. Loose hub nuts cause wheel separation. I’ve seen the aftermath.

Using the Catalog for Differential Rebuild

The differential assembly (618-04236) is listed as “UV, complete” and code S (serviceable). That means you can buy the whole diff, but the catalog also breaks down internal seals and shafts. You see seal, axle shaft (921-04005) and seal, input shaft (721-04143). The input shaft seal is 1.0 x 62mm x .375 — that’s an unusual size. The catalog doesn’t give installation instructions — that’s what the service manual is for. But it gives you the part numbers so you don’t waste time calling the dealer with “I need the seal for the diff.” You walk in with 921-04005. Done.

Related Manuals

• Cub Cadet 21121C29025 Parts Catalog – 73 Pages of Factory Specs
• Cub Cadet 984 Parts Catalog – 128 Pages of OEM Factory Parts Breakdowns
• Cub Cadet 81, 21121C290248 Parts Catalog – OEM Factory Breakdown

Frequently Asked Questions

Is this a service manual or a parts catalog?

Parts catalog only. No repair procedures or torque specs.

How do I order the correct differential assembly?

Use reference number 618-04236. Verify your 46B is a 4×4 model — the catalog marks parts “4×4 Units Only.” Check the S/P/F code: S means it’s available as a service part. If your diff doesn’t match the exploded view exactly, your model may have a different sub-variant. Cross-reference your VIN with Cub Cadet’s dealer portal. The catalog won’t list supersessions after its print date, so call a dealer to confirm availability before ordering.

Does it include torque values?

No. This is a parts catalog. Torque specs require the factory service manual. Do not guess torque on axle nuts or brake caliper bolts — under- or over-torque causes failure.

Can I use this to identify parts for a non-4×4 model?

No. Sections are clearly marked “4×4 Units Only.” The 2WD 46B uses different axles and steering components. You need the correct catalog for your drivetrain.

You need the original OEM parts breakdown to keep your Cub Cadet 46B running without scavenging from three different websites. This catalog gives you the factory part numbers and exploded diagrams — nothing else. Access the Factory Manual from AutoRepairManuals and stop wasting time on parts that don’t fit.