Description

Cub Cadet 1720 Parts Catalog

Let me tell you something about ordering parts for a Cub Cadet 1720. You pull up a generic online parts diagram, the bolt doesn’t match, the gasket is wrong, and suddenly you’re staring at a mower that won’t run because some aftermarket site listed a KH-45-082-01 as a “universal cover.” I’ve seen it happen. Three hours wasted, and the customer is asking why the air cleaner won’t seat. That’s where this OEM Parts Catalog earns its spot on your bench.

Air Cleaner Assembly: Page 1 Breakdown

Flip to the first page and you get the air cleaner group for serial numbers 126,001 through 147,087. There’s a part number for every piece: the wing nut (KH-X-276-7), the element cover (KH-52-082-04), the precleaner (759-3359). The manual lists quantity, description, and whether it’s a service item (S), a part (P), or a fastener (F). That column on the right saves you from ordering a whole assembly when all you need is a gasket. The precleaner is marked ‘S’ — service item — meaning you should stock it. The element cover is listed as ‘/P’ — you want the actual part, not a substitute. I’ve seen aftermarket catalogs skip that column. Don’t trust them.

Battery & Mounting: What the OEM Specifies

Page 3 covers the battery tray, rods, and hardware. The battery itself is a 12-volt unit, part 725-3061. But look closer: the ground wire (725-0975) is 9.0 inches long. The tray (703-1144) has specific carriage bolts (710-0451) — 5/16-18 x .75 inch length, grade 5. That matters because using a shorter bolt means the lock washer won’t seat. The manual includes a battery drain hose (735-3027) — 48 inches. If you’ve ever tried to find that hose at a local store, you know it’s never the right ID. This catalog gives you the factory part so you order once.

Brake Pedal & Connections: Factory Diagram vs Aftermarket

Page 5 shows the brake pedal assembly with 32 reference numbers. The exploded view connects every rod, spring, and clevis pin. Aftermarket diagrams often group parts into one blob — you can’t tell if the spring is left-hand or right-hand. This catalog separates the LH rod (711-3142) from the RH rod (711-0222). That’s the difference between a brake that engages and one that rubs. If you’re rebuilding the pedal assembly, you need this page in front of you.

3 Systems You Can Rebuild Using This Catalog

1. Air Cleaner System – Precleaner, element, housing, gaskets. Page 1 covers everything from the wing nut to the elbow gasket. Includes part KH-25-113-01 for the air cleaner instruction decal.
2. Battery System – Battery, tray, rods, ground wire, drain hose. Page 3. Don’t forget the danger graphic (777-4491) if you’re restoring to showroom condition.
3. Brake Pedal System – Page 5. Includes all hardware, springs, and pedal assembly parts. The manual breaks down each component so you can order exactly what’s broken.

That’s three major subsystems you can fix using this single 74-page document. No flipping between websites trying to match blurry photos.

Why a 74-Page Parts Catalog Beats Online Lookups

Every time I hear a tech say “I’ll just look it up on my phone,” I wince. Because the aftermarket sites strip out the S/P/F column. They don’t tell you whether a part is a service item or a one-time use fastener. This OEM catalog has that data. It’s printed from the original factory specifications. The serial number range is right there — 126,001 to 147,087. If your Cub Cadet 1720 falls outside that range, you need a different catalog. That’s how specific it is. I’ve used aftermarket parts lists that claim to cover all serial numbers, and I’ve had to reorder because the gasket didn’t match. This catalog eliminates that guesswork. For related OEM breakdowns, check the Cub Cadet 1720 Parts Catalog or the Cub Cadet 21121C29025 Parts Catalog – 73 Pages of Factory Specs for another model. If you need a larger set, the Cub Cadet 984 Parts Catalog – 128 Pages of OEM Factory Parts Breakdowns covers more ground.

FAQ: Common Questions About This Catalog

Does this catalog include torque specs for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers and quantities. You still need the factory service manual for torque values. But if you need to identify which bolt goes where, this is it.

What serial numbers does this manual cover?

126,001 through 147,087. Double-check your Cub Cadet 1720 tag before ordering. If your serial is outside that range, you’ll need the matching catalog.

Are the part numbers still current for 2025?

Some parts may have been superseded. The catalog gives you the original OEM number. For current availability, cross-reference with a dealer or Cub Cadet’s online system. But the manual itself is the authoritative source for what was originally installed.

Can I use this catalog to order from any supplier?

Yes. The part numbers are OEM factory numbers. Any dealer or online parts store that stocks Cub Cadet will accept them. Write down the number from the page, call your supplier, order. That’s it.

If you’re working on a Cub Cadet 1720 and you need to order parts without wasting money on wrong returns, this catalog is what you put on your bench. 74 pages, factory-sourced, serial-number-specific. Access the Factory Manual and keep it on your tablet or print it out. I’ve got a laminated copy taped to my toolbox. Saves me calls to parts stores every time. For broader context on the machinery class, you can read this Automotive Industry Overview or this Automotive Industry Overview. But for your job, the manual is all you need.