Quick Answer
The Cub Cadet Tank 48 commercial zero-turn mower, model 53AH8STB050, uses the 01001979P electric PTO clutch.
The matching 48-inch fabricated deck path uses the 01005374P combined PTO/deck belt, 02005017 / 942-04417 high-lift blades, and 918-04939 spindle assemblies.
This guide is specifically for the Cub Cadet model officially named Tank 48, model number 53AH8STB050. Do not automatically apply this parts path to older M48-KW, M48-KH, Tank L48, or other 48-inch commercial mower families.
Cub Cadet Tank 48 PTO Clutch Table
Table tip: On mobile, swipe sideways to view the full fitment table.
| Model Name | Model Number | Engine | Deck Size | OEM PTO Clutch | PTO Direct Product | Fitment Note |
|---|---|---|---|---|---|---|
| Cub Cadet Tank 48 | 53AH8STB050 | 23 HP Kohler | 48-inch fabricated deck | 01001979P | 01001979P PTO Clutch | Confirmed model-specific clutch path. Uses a commercial-duty 1-1/8-inch bore clutch rather than the common residential 1-inch Cub Cadet clutch. |
Cub Cadet Tank 48 Deck Parts Table
Table tip: On mobile, swipe sideways to view the full deck parts table.
| Component | Quantity | OEM Part Number Path | PTO Direct Product | Fitment Note |
|---|---|---|---|---|
| Combined PTO/Deck Belt | 1 | 01005374 / 01005374P | Contact to inquire about product | This model uses one combined PTO/deck belt path between the PTO clutch and 48-inch deck pulley system. |
| High-Lift Blade | 3 | 01005336 / 01005336P / 02005017 / 742-04417 / 942-04417 | 02005017 / 942-04417 Mower Blades | Uses three approximately 17-inch high-lift blades on the 48-inch fabricated deck. |
| Spindle Assembly | 3 | 918-04939 | Contact to inquire about product | Model-specific spindle assembly for the Tank 48 fabricated deck. Do not substitute a similar-looking residential spindle without confirming the complete number. |
Model Path Note
The confirmed Cub Cadet Tank 48 model 53AH8STB050 uses the 01001979P PTO clutch, 01005374P combined PTO/deck belt, 02005017 / 942-04417 blades, and 918-04939 spindle assemblies.
The 01001979P clutch is a commercial-duty clutch with a 1-1/8-inch crankshaft bore and an approximately 5.35-inch pulley. It should not be confused with the smaller-bore 01008434, 759-05064, or 917-05209 clutch families used on many residential Cub Cadet models.
The Tank 48 model in this guide uses a single combined PTO/deck belt. Some older Cub Cadet M48 models use separate PTO and spindle-drive belts, so the model name and complete model number must be confirmed before ordering belts.
The Tank 48, M48-KW, M48-KH, and Tank L48 names should not be treated as interchangeable. They may share certain blades or clutch families while using different belt and spindle configurations.
Before Ordering
- Confirm the mower is officially identified as a Cub Cadet Tank 48.
- Confirm the complete model number is 53AH8STB050.
- Use the 01001979P PTO clutch for the confirmed clutch path.
- Confirm the original clutch has a 1-1/8-inch crankshaft bore.
- Confirm the original clutch pulley measures approximately 5.35 inches.
- Use 01005374P for the combined PTO/deck belt path.
- Do not confuse 01005374P with the separate PTO and deck belts used on certain older M48 models.
- Use the 02005017 / 942-04417 mower blades for the standard high-lift blade path.
- Confirm the deck uses three approximately 17-inch blades.
- Use 918-04939 for the model-specific spindle assembly path.
- Inspect all three spindle shafts, pulleys, bearings, blade bolts, and belt-routing components before installation.
- Do not order parts using only the words “Cub Cadet 48-inch Tank.”
Common Symptoms
- Blades do not engage when the PTO switch is pulled
- PTO clutch engages briefly and then releases under load
- Clutch clicks but the PTO/deck belt does not begin turning
- Deck belt slips, squeals, burns, or jumps off the pulley system
- Blades engage when cold but slow down after the mower becomes warm
- One spindle pulley stops turning while the other blades continue rotating
- Rough spindle bearings or excessive mower-deck vibration
- Grass tears rather than cutting cleanly
- Uneven cutting height or visible mowing streaks
- Burning smell near the clutch, belt, or spindle pulleys
FAQ
What PTO clutch fits the Cub Cadet Tank 48?
Cub Cadet Tank 48 model 53AH8STB050 uses the 01001979P electric PTO clutch.
What does the 01001979P PTO clutch replace?
The 01001979P PTO clutch replaces Cub Cadet and MTD numbers 01001979 and 01001979P. The same clutch path is also associated with Ogura GT2-CT07 and aftermarket references such as X0621.
What are the specifications of the 01001979P clutch?
The confirmed replacement path uses a 1-1/8-inch crankshaft bore, an approximately 5.35-inch pulley, and counterclockwise rotation when viewed from the pulley side.
Is 01001979P the same as 01008434 or 759-05064?
No. The 01001979P clutch uses a 1-1/8-inch bore. The common 01008434 and 759-05064 clutch path uses a 1-inch bore. The clutches may look similar but are not interchangeable.
Is 01001979P the same as 917-05209?
No. The 917-05209 clutch uses a different bore, pulley, and application path. It is commonly found on newer residential Cub Cadet models rather than the commercial Tank 48 model covered here.
What deck belt fits the Cub Cadet Tank 48?
Cub Cadet Tank 48 model 53AH8STB050 uses the 01005374P combined PTO/deck belt. The original number may also appear as 01005374.
Does the Cub Cadet Tank 48 use separate PTO and deck belts?
Model 53AH8STB050 uses one combined 01005374P PTO/deck belt. Some older M48 models use separate PTO and deck belts, which is why the complete mower model number must be confirmed.
How long is the 01005374P belt?
Aftermarket belt catalogs commonly describe the 01005374P replacement as approximately 1/2 inch wide by 105-1/4 inches long. The OEM number and model-specific routing should remain the primary fitment checks.
What blades fit the Cub Cadet Tank 48?
The standard blade path uses three 02005017 / 942-04417 high-lift mower blades. Related number formats include 01005336, 01005336P, and 742-04417.
How many blades does the Cub Cadet Tank 48 use?
The 48-inch fabricated deck uses three mower blades.
How long are the Cub Cadet Tank 48 blades?
Each standard high-lift replacement blade measures approximately 17 inches long.
What spindle fits the Cub Cadet Tank 48?
Cub Cadet Tank 48 model 53AH8STB050 uses the 918-04939 spindle assembly. Three spindle assemblies are used on the 48-inch deck.
Does 918-05125 replace the Tank 48 spindle?
Not for the specific 53AH8STB050 path shown in this guide. The confirmed diagram lists 918-04939. The 918-05125 spindle appears on certain older M48 and other commercial deck configurations.
Can I use this guide for a Cub Cadet M48-KW?
No. Some M48-KW models use the same clutch and blades but have a separate PTO belt and deck belt, along with a different spindle path. Use the complete M48-KW model number and its own parts diagram.
Can I use this guide for a Cub Cadet M48-KH?
No. The M48-KH family can use different clutch, belt, and spindle combinations depending on production year. This guide is limited to Tank 48 model 53AH8STB050.
Can I use this guide for a Cub Cadet Tank L48?
No. Tank L48 and L48-KH models are later commercial mower families with their own model numbers and parts diagrams.
Is there a complete deck kit for the Cub Cadet Tank 48?
PTO Direct USA does not currently have one complete deck-kit listing covering the exact 01005374P belt, 942-04417 blades, and 918-04939 spindle path. Use the available individual product links above and contact PTO Direct USA to inquire about the belt or spindle assemblies.