Cub Cadet Serial Number and Parts Lookup

If you own a Cub Cadet mower, snow blower, tiller, log splitter, handheld tool, or UTV, the most important thing you can know is where to find its model and serial numbers. Those codes are the key to ordering the right parts, checking compatibility, and even working out the year your machine was built.

This guide covers:

Where to find model, serial and “PIN” numbers on every major type of Cub Cadet equipment
How to read those numbers and what they actually mean
How engine numbers (Kohler, Briggs, etc.) tie into parts lookup
How to use model and part numbers in online parts diagrams
What to do if your ID label is missing or unreadable

1. Cub Cadet -Model numbers, serial numbers and PINs – what’s the difference?

On Cub Cadet equipment you’ll usually see the following identifiers:

Model number – identifies the exact model of your machine. On modern equipment it’s typically an 11‑character code (letters and numbers).
Serial number – unique to your individual unit. It often tells you when that specific machine was built.
PIN (Product Identification Number) – many people (and some dealers) use “PIN” as another name for the serial number or the combined ID printed on the product label.
Part number – this is not on the main ID label. It’s the code for a specific component (blade, belt, filter, etc.) that you’ll see in parts diagrams, manuals, and sometimes on a “parts list” label on the machine.

Think of it like this:

Model number = the family your machine belongs to
Serial / PIN = your machine’s passport number
Part number = the barcode for each individual component

You’ll almost always need model + serial to get into the correct diagrams, and part numbers to order the actual bits.

2. Where to find Cub Cadet serial numbers by machine type

In this section we’ll go through each major category of equipment and show you exactly where to look.

2.1 Cub Cadet Serial Number Walk‑behind lawn mowers

What to find

Cub Cadet mower model number (usually starting with 11 or 12 on many walk‑behinds)
Serial number on the same label
Engine model/spec (Kohler, Briggs, etc.) printed on a separate tag on the engine

Where to look

Stand behind the mower where you normally push it.
Look at the rear left side of the cutting deck – that’s typically where Cub Cadet puts the product identification label on walk‑behind mowers.
You’re looking for a small metal or durable plastic label with two main lines: model and serial.

If the deck is covered in grass or dirt, scrape or brush it first so you don’t miss a faded sticker.

Cub Cadet Engine numbers

For the engine, look on the top or side of the engine shroud (the metal housing that covers the flywheel) or around the muffler / air filter. You’ll often see:

On Briggs engines – “Model, Type, Code”
On Kohler engines – “Model, Spec, Serial”

These are separate from the Cub Cadet model and serial, but essential for engine‑specific parts.

2.2 Cub Cadet Serial Number Lawn tractors and garden tractors

What to find

Tractor model number – usually beginning with 13 or 14 on many lawn and garden tractors
Tractor serial number – same tag as model
Engine model/spec – on the engine itself

Where to look

Park on level ground and set the parking brake.
Lift the seat; most Cub Cadet tractors have a seat that tips forward on a hinge.
Look on the underside of the seat pan or directly on the top of the frame underneath the seat.
You should see the product identification label with model and serial printed clearly.

If the seat pan is rusty or dirty, wipe it down so you can read the code.

Engine tag

On a tractor, engine labels are usually on:

The side of the blower housing
A valve cover on V‑twins
The top of the engine near the air filter housing

Make a note of all three: tractor model, tractor serial, and engine model/spec.

2.3 Cub Cadet Serial Number Zero‑turn (ZT) mowers

What to find

Zero‑turn mower model number – often starting with 17 or a similar prefix
Serial number – on the same ID plate
Engine model/spec, and possibly pump or hydraulic model numbers on commercial units

Where to look

Park the zero‑turn, lower the deck, and set the parking brake.
Tip or slide the seat forward.
Look under the seat at the seat mounting bracket and nearby frame rails.
The Cub Cadet product ID label is typically on the underside of the seat pan or on a bracket or frame section underneath it.

Many zero‑turns also have a “common parts” label under the seat that lists belt and blade part numbers for quick reference. Snap a photo of that for future use.

2.4 Cub Cadet Serial Number Tillers and cultivators

What to find

Tiller model number – often starting with 21 on many walk‑behind tillers
Serial number – on same label
Engine model/spec

Where to look

Stand behind the tiller where you’d normally walk and operate it.
Look at the tine housing – the metal casing that surrounds the tines.
You should find the product identification label on the side or rear of that housing.

Once again, engine information will be on a separate label on the engine housing.

2.5 Cub Cadet Serial Number Snow blowers (single‑stage, two‑stage, three‑stage)

What to find

Snow blower model number – often starting with 31 on Cub Cadet snow throwers
Serial number – same tag
Engine model/spec

Two‑ and three‑stage blowers: where to look

Stand behind the machine, in between the handles.
Look at the rear of the frame between the wheels or at the lower part of the rear frame cover.
The product label is typically mounted here.

Single‑stage blowers: where to look

Stand at the side of the unit.
Look toward the right side of the frame near the belt cover.
The ID tag is usually on that side frame rail.

Like some riding mowers, many snow blowers also have a parts list label with commonly used belts, shear pins, skid shoes, etc., printed with their part numbers. That’s gold when you’re ordering.

2.6 Cub Cadet Serial Number Log splitters

What to find

Log splitter model number – many start with a 24 prefix
Serial number
Engine model/spec (for the horizontal shaft engine)

Where to look

Stand next to the splitter and locate the engine and main beam.
Look at the frame beneath the engine for a product ID label.
The label is often mounted on a crossmember or frame rail in that area.

As always, the engine has its own separate model/spec ID.

2.7 Cub Cadet Serial Number Handheld tools: trimmers, blowers, chainsaws, hedge trimmers

Handheld machines typically share a few label patterns. The stickers are smaller and easier to miss or damage over time, so you might need good lighting.

String trimmers / brushcutters

Model prefix is often 41 or 42.
The label is usually on the starter housing – the plastic casing where the recoil starter rope is.
Check both sides of the starter housing carefully.

Leaf blowers

Often share the 41/42 model prefix range.
Look near the starter rope housing or on the main engine housing on the side.

Chainsaws

Often 41‑prefix models.
The product label is frequently on the handle, sometimes tucked on the inside of the rear or side handle where it’s protected.

Hedge trimmers

Cordless trimmers commonly have the label beneath the battery pack – you may need to remove the battery to see it.
On corded or petrol units, check the motor housing for a small tag.

Because these stickers can wear, it’s a good idea to photograph them as soon as you get the machine, then store the image in your phone or maintenance log.

2.8 UCub Cadet Serial Number Utility Vehicles (UTVs)

What to find

UTV model number
Serial number
Engine VIN / model, and possibly transmission identifiers

Where to look

Park the UTV on level ground and set the brake.
Tip or remove the driver’s seat.
Look at the underside of the driver‑side seat and the frame rails just under it.
The model/serial plate is typically mounted in that area.

Engine VIN and other driveline numbers will be on separate tags or stampings on the engine block and gearbox.

3. How to read Cub Cadet serial numbers

Different production periods have used slightly different serial number schemes, but there are two big ideas most owners care about:

How long is my serial number and what characters does it use?
How do I work out the build year from it?

3.1 Length and style

On modern Cub Cadet equipment you’ll usually see:

An 11‑character serial number that mixes letters and numbers
Printed on the same label as the 11‑character model number

Older equipment (particularly early International Harvester‑built Cub Cadets) often used:

Shorter, all‑numeric serials stamped or printed on a separate tag
Tags mounted on the rear of the frame or transaxle

You don’t need to decode every single digit to use the number – most of the time you just need it intact so the parts systems and dealers can identify your machine.

3.2 Cub Cadet Serial Number Year of manufacture hints

On later serial formats, one character typically encodes the build year. A common pattern is:

An 11‑character serial where the 5th character indicates the last digit of the year.
Example: if you know your model was sold around 2010–2020 and the 5th character is “5”, then your machine was likely built in 2015.

Some serial formats go further and encode month and day as well. For your master hub, focus on the practical angle: the serial number often lets you match the correct year in online parts diagrams, and that ensures you get the right revision of parts.

3.3 Using serial for diagrams

Most online parts systems first ask for the model number, and then:

Either let you pick a year or serial range, or
Automatically detect the correct range from your serial

This matters when a model ran for multiple years and had changes mid‑production. Having your full serial means:

You get the correct deck configuration
You get the right belts, pulleys, and linkage designs
You avoid ordering parts that only fit earlier or later serial ranges

4. Cub Cadet Serial Number Engine model and serial numbers (Kohler, Briggs & others)

Your Cub Cadet machine’s engine is usually built by a separate manufacturer and has its own set of identifiers. You use these engine codes when ordering engine‑only parts (carburetors, coils, internal gaskets, etc.).

4.1 Cub Cadet Serial Number Briggs & Stratton engines

Briggs labels typically show:

Model – a number like 31R907
Type – identifies variant and configuration
Code – often includes build date information

You’ll usually find this on:

The blower housing (metal engine cover), often near the spark plug or muffler
Sometimes on a decal stuck to the top or side of the shroud

4.2 Cub Cadet Serial Number Kohler engines

Kohler tags usually list:

Model – e.g., “KT735”, “Courage SVxxxx”, “Command PRO” variants
Spec – configuration details
Serial – unique engine identifier

Common locations:

A label on the side of the blower housing
Stamped or stickered on a valve cover
Near the air cleaner housing

4.3 Cub Cadet Serial Number Why separate engine codes matter

Use the machine’s model and serial for:

Belts, blades, decks, transmissions, linkages, frames, steering parts, etc.

Use the engine’s model/spec/serial for:

Internal engine parts
Hard‑engine components such as carburetors, ignition Coils, starter motors, governor assemblies, and sometimes mufflers or specific exhaust parts

This split is worth explaining clearly in your hub, because a lot of owners try to order engine parts using just the tractor model and get wrong items.

5. Part numbers and parts diagrams

Once you’ve got the model and serial of your Cub Cadet, the next step is usually to get into an online parts system or a PDF parts manual.

5.1 What is a Cub Cadet part number?

A part number is a unique code assigned to a component such as:

Blades
Belts
Spindles
Wheels and tyres
Cables
Filters
Deck shells
Steering gears

These codes are what you actually order from a dealer, online store, or distributor.

5.2 Where part numbers appear

You’ll typically see part numbers in:

Online parts diagrams – exploded views with a numbered parts list below
PDF or printed parts manuals – model‑specific books listing every serviceable component
“Parts list” labels on the machine – on many riding mowers, zero‑turns and snow blowers, Cub Cadet prints common wear part numbers directly on the machine under the hood, under the seat, or on the frame

If a label on your machine lists something like:

“Drive belt – 954‑xxxx”
“Deck belt – 954‑yyyy”
“Blade – 742‑zzzz”

you can type that straight into a parts website or tell your dealer that number.

5.3 How to use online parts diagrams (step‑by‑step)

Here’s a generic workflow you can describe:

Go to a Cub Cadet parts or service portal.
Enter your model number in the search box.
If prompted, select the year or a serial range that matches your serial number.
Choose the section you need: “Mower deck”, “Transmission”, “Steering”, “Engine plate”, etc.
Open the exploded diagram and locate the item visually.
Note the reference number on the diagram.
Scroll down to the parts list, find that reference number, and read off the part number and description.
Add it to cart or copy the part number to use on your favourite parts supplier’s site.

For a good master hub, you can include one or two example diagrams and walk the reader through them.

6. What if your model or serial label is missing?

Older machines, re‑sprayed frames, and hard‑used equipment often lose their ID tags. All is not lost, but you’ll need to be more detective‑like.

6.1 Check all the usual tag locations

Even if the main ID label is gone, there may be:

A partial sticker under the seat or on the frame
A frame stamping or raised casting number on the rear of the tractor or transaxle
A parts list label still present under the hood or under the seat with at least some part numbers and a model prefix

Use a torch and scraper to remove dirt and paint on suspect flat frame areas.

6.2 Use the engine and visual clues

If you can’t find the Cub Cadet model/serial:

Note the engine model/spec/serial
Take clear photos of the entire machine from multiple angles, plus close‑ups of controls and decals
Compare these with online galleries and model lists
Post photos and engine data to owner groups and forums – collectors are extremely good at visually identifying models and year ranges

Once you have a probable model, you can open its diagrams and visually match parts before you click “buy”.

6.3 Serial number charts for classic tractors

For classic IH‑era Cub Cadet garden tractors, enthusiasts have compiled:

Serial‑to‑year charts where you match your stamped serial to a manufacturing date range
Lists of feature changes by year (dash style, decals, headlights, seat type, etc.)

If your machine is from the 1960s–early 1980s, these charts can be invaluable for dating it and picking the right manual.

7. Practical checklists you can reuse

To make this hub particularly useful, you can add short checklists users can screenshot.

7.1 Before you order Cub Cadet parts, always gather:

Machine model number
Machine serial number
Engine model/spec/serial (especially if the part is engine‑related)
A photo of the label(s) if possible
A photo of the part you want to replace, or at least the area where it fits

7.2 Common mistakes to avoid

Trying to order a carburetor using only the tractor model
Assuming any belt listed “for a 42‑inch deck” will fit all 42‑inch Cub Cadets
Ignoring the serial break (early vs late production) in parts diagrams
Guessing the model based only on deck size and color

Highlight these in callout boxes or “pro tip” sections for better UX and SEO.

8. Big FAQ: Cub Cadet serial numbers, PINs and part numbers

Here are 30+ FAQ‑style questions and answers you can use verbatim or adapt into collapsible blocks.

Where do I find the model and serial number on my Cub Cadet walk‑behind mower?
On most walk‑behind mowers, the product identification label with model and serial is on the rear left side of the cutting deck. Stand behind the mower and look down over the left rear wheel area.
Where is the model and serial number on a Cub Cadet lawn tractor?
On most lawn and garden tractors, lift the seat and look at the underside of the seat pan or the frame directly under the seat. The label there lists both the model and serial numbers.
How do I find the serial number on a Cub Cadet zero‑turn mower?
Park the machine, tip the seat forward, and inspect the seat bracket and frame area underneath. The identification label is typically mounted under the seat on zero‑turn mowers.
Where is the model number on a Cub Cadet snow blower?
On two‑ and three‑stage snow blowers, stand behind the unit and look at the rear of the frame between the wheels. On many single‑stage blowers, the label is on the right side of the frame near the belt cover.
Where do I find the model and serial number on a Cub Cadet tiller?
Stand at the operator position and look at the tine housing. The product ID label is usually on the side or rear of that housing.
Where is the model number on a Cub Cadet log splitter?
On log splitters, the model and serial label is typically mounted on the frame beneath the engine, often on a crossmember or frame rail.
How do I find the model number on a Cub Cadet string trimmer or brushcutter?
Look on the starter housing (the plastic casing around the recoil starter). The label is usually on one side of that housing and lists both model and serial.
Where is the ID tag on a Cub Cadet handheld leaf blower?
For handheld blowers, check the starter rope housing and nearby plastic shrouds. The label is small but usually placed where it is sheltered from abrasion.
Where is the model number on a Cub Cadet chainsaw?
Many Cub Cadet‑branded chainsaws have the label on the handle, often on the inside of the rear or side handle.
Where is the model and serial number on a Cub Cadet hedge trimmer?
On cordless hedge trimmers, remove the battery and check beneath it on the housing. On corded or petrol versions, look at the main motor housing for a small product label.
Where do I find the model number on a Cub Cadet UTV?
Tip or remove the driver’s seat and look on the underside of the seat or the frame right under it. That’s where the model and serial plate is usually mounted.
What does a Cub Cadet model number look like?
Modern Cub Cadet model numbers are typically 11 characters long, mixing numbers and letters, often starting with a prefix like 11, 12, 13, 14, 17, 21, 24 or 31 depending on the machine type.
What does the Cub Cadet serial number look like?
On many newer machines, the serial number is also 11 characters, printed on the same label as the model number. Older units may have shorter, all‑numeric serials on separate tags.
Can I determine the year of my Cub Cadet from the serial number?
On many recent serial formats, a specific character (commonly the 5th character) indicates the last digit of the build year. Combined with knowledge of when the model was in production, that lets you estimate the year.
What is a Cub Cadet PIN – is it different from the serial number?
“PIN” often stands for Product Identification Number, and in practice most owners and dealers use it interchangeably with the serial number or full product ID printed on the label.
Do I need the serial number to order parts, or is the model number enough?
For some common parts, the model number alone is enough, but for machines with mid‑production changes the serial number ensures you get the correct revision of belts, decks, and hardware. It’s always safer to have both.
Where do I find the engine model and serial on my Cub Cadet?
Engine IDs are on separate labels on the engine itself, usually on the blower housing, valve cover, or near the air filter or muffler. Briggs and Kohler both use their own model/spec/serial formats.
Why do I need the engine model number if I already have the tractor model number?
The tractor model covers chassis, deck and drive components. The engine model/spec is required for internal engine parts such as carburetors, coils, pistons and gaskets, which are supplied by the engine manufacturer.
Can I order a carburetor using just the Cub Cadet tractor model number?
Sometimes a parts system will cross‑reference it, but the most accurate way is to use the engine’s model and spec numbers, not the tractor’s chassis model.
How do I use my Cub Cadet model number to find parts diagrams?
Go to a parts or service site, enter the model number, select the correct year or serial range, and then browse exploded diagrams for the deck, drivetrain, steering, engine plate and so on.
Where do I find part numbers for my Cub Cadet mower blades and belts?
Either:
- Look up your model in an online parts diagram and note the blade and belt part numbers, or
- Check for a parts list label under the hood or seat, which often lists common blade and belt numbers.
What if the label on my Cub Cadet is gone or unreadable?
Check all usual locations carefully, then use engine numbers, photos and visual identification to narrow down the model via online resources and owner forums. Classic serial charts can help for older tractors.
How can I tell which deck size I have if the model label is missing?
Measure the cutting width from edge to edge and compare deck shape, spindle layout and chute design with online diagrams or photos for likely models.
Can two Cub Cadet models with the same deck size use different belts or blades?
Yes. Deck design, spindle spacing and pulley layout can differ even at the same nominal deck width, so always confirm parts by exact model and serial, not just deck size.
What is the easiest way to store my Cub Cadet model and serial numbers?
Take clear photos of all ID labels and engine tags, save them in a folder on your phone or computer, and optionally note them in a maintenance log with purchase date and dealer info.
Do attachments like baggers and snow blades have their own model and serial numbers?
Many attachments have their own model and part numbers stamped on brackets, frames, or decals. Keep those recorded as well, as they help when ordering replacement hardware or covers.
Can I use my Cub Cadet serial number to look up the original engine?
On factory‑equipped machines, the original engine model is often documented by the tractor model and serial in dealer systems. However, on older or heavily modified units the engine may have been swapped, so always check the current engine’s own tag.
Why is my model number prefix different from the examples here?
Cub Cadet has produced many different series over the years. As long as your label clearly says “Model” and “Serial”, those are the numbers you need, even if the prefix doesn’t match the most common patterns.
Can I identify my Cub Cadet just from the serial number?
In dealer systems you usually search by model first. Some internal databases can look up by serial alone, but for DIY owners it’s far easier to identify or confirm the model number as well.
Is the serial number unique to my machine?
Yes. The serial number (or full PIN) is intended to be unique to your individual machine, while many thousands of machines can share the same model number.
What should I do before I phone a dealer or support line about my Cub Cadet?
Have the following ready: machine model and serial, engine model/spec, a description of the problem, and ideally photos of the machine and any failed parts. This saves time and reduces the risk of ordering incorrect items.
Should I write the numbers down anywhere besides relying on the label?
Definitely. Labels can peel, rust or wear off. Keep a written record or digital note of your model, serial and engine numbers, plus key part numbers like belts and blades.