405143 Deck Belt Replacement for Craftsman, Husqvarna, Poulan & Ariens 46-Inch Decks

Overview

This 405143 deck belt replacement is built for select 46-inch Craftsman, Husqvarna, Poulan, Ariens, RedMax, Jonsered, and AYP-built mower decks using the 405143 / 532405143 / 584453101 belt path.

This replacement deck belt measures 1/2 inch wide by 105-3/4 inches long and is commonly used on 46-inch lawn tractor and riding mower deck systems.

It is a good replacement option when your mower deck belt is cracked, glazed, stretched, frayed, slipping, squealing, or jumping off the deck pulley system.

Important: Match your original belt part number whenever possible. Then confirm belt width, belt length, and deck size before ordering.

Key Features

• Replacement mower deck belt for select 46-inch deck applications
• Primary Part Number: 405143
• Also Replaces: 532405143, 584453101, 7133156
• Belt Width: 1/2 inch
• Belt Length: 105-3/4 inches
• Commonly used on Craftsman, Husqvarna, Poulan, Ariens, RedMax, Jonsered, and AYP-built mower decks
• Designed for mower deck drive systems using the listed OEM belt path
• Ships as one replacement deck belt

Compatible Brands & Model Series

This deck belt is intended for select mower decks using the 405143 / 532405143 / 584453101 / 7133156 replacement belt path.

• Craftsman: select 46-inch mower deck applications
• Husqvarna: select 46-inch YTH, YTA, YT, TS, and PB-series mower decks
• Poulan: select 46-inch PB, PP, and PPX-series mower decks
• Ariens / Gravely: select 46-inch Precision Hydro, Hydro, and Automatic mower decks
• RedMax: select 46-inch YT-series mower decks
• Jonsered: select LT and YT46 mower deck applications
• AYP: select 46-inch deck platforms using the listed replacement belt numbers

Fits Select Husqvarna Models

This belt is commonly associated with select Husqvarna 46-inch deck models, including:

2146 XLS, 2246 LS, 2246 LS CA, 2346 XLS, PB19546LT, TS246, TS346, YT46LS, YTA1946, YTA20V46, YTA22V46, YTH20K46, YTH21K46, YTH2146XP, YTH2146XP CA, YTH22V42, YTH22V46, YTH22V46XLS, YTH2242, YTH2246, YTH18K46, YTH20V46, YTH2146, YTH223T, YTH224T, YTH224TFI, YTH2246TDR, YTH22K46, and YTH23K46.

Fits Select Poulan Models

This belt is commonly associated with select Poulan 46-inch deck models, including:

PB185A46LT, PB18VA46, PB19546LT, PB20A46, PB20A46YT, PB20VA46, PB22H46YT, PB23H46YT, PP175G46, PP175H46, PP19H46, PP20VA46, PP22VH46, PPX19A46, PPX19H46, and PPX20VA46.

Fits Select Ariens Models

This belt is commonly associated with select Ariens 46-inch deck models, including:

936001, 936039, 936044, 936050, 936053, 936056, 936057, 936063, 936066, 936071, 936075, 936077, 936085, 936086, 936089, 936095, and 936099.

Ariens fitment note: Confirm your full Ariens model and deck size before ordering. Many Ariens model families have multiple deck configurations.

Fits Select RedMax & Jonsered Models

• RedMax: YT1846, YT2246
• Jonsered: LT2223 A2, LT2320 A2, YT46

Replaces OEM Part Numbers

• AYP: 405143, 584453101, 7133156
• Craftsman: 7133156, 405143, 532405143
• Husqvarna: 532405143, 584453101
• Ariens / Gravely: 21546607
• MTD / Cub Cadet / Troy-Bilt: 12286, 14366, 230-6106, 7-078204, B1532405143
• Oregon: 15-022
• Stens: 265-106

Belt Specifications

• Width: 1/2 inch
• Length: 105-3/4 inches
• Type: mower deck drive belt
• Quantity Included: 1 belt

Before Ordering

Before ordering this deck belt, confirm:

• Your original belt number matches 405143, 532405143, 584453101, or 7133156
• Your belt width is 1/2 inch
• Your belt length is 105-3/4 inches
• Your mower uses the correct 46-inch deck belt routing
• Your idler pulleys, spindle pulleys, belt guides, and tension spring are in good condition
• Your mower model and deck size match the listed application path

Do not install the belt until fitment is confirmed. Installed belts may not be eligible for return.

Common Symptoms of a Worn Deck Belt

• Deck belt slips under load
• Belt squeals when the blades are engaged
• Mower leaves uneven or uncut grass
• Belt jumps off the pulley system
• Visible cracking, glazing, or fraying
• Deck vibration or poor blade speed
• Burning rubber smell near the mower deck

Installation Notes

• Park the mower on a level surface and disconnect the spark plug before working on the deck
• Take a photo of the belt routing before removing the old belt
• Inspect idler pulleys, spindle pulleys, belt keepers, and the tension spring before installing the new belt
• Make sure the belt is seated fully in each pulley groove
• After installation, test the mower at low speed and listen for belt tracking issues, squealing, or vibration

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment-first product descriptions
• Clear part-number routing for mower deck repairs
• Deck parts organized by belts, blades, spindles, pulleys, and rebuild kits
• Support for homeowners, repair shops, and mower owners

Need Help Confirming Fitment?

If you are unsure whether this belt fits your mower, send us your mower model number, deck size, original belt number, and photos of your belt routing diagram, mower ID tag, and old belt before ordering.

FAQ

Does this replace Craftsman 405143?

Yes, this belt replaces 405143 on select Craftsman and AYP-style 46-inch mower decks. Confirm your deck size and original belt number before ordering.

Does this replace Husqvarna 532405143?

Yes, this belt replaces 532405143 on select Husqvarna 46-inch mower deck applications.

Does this replace 584453101?

Yes, this belt also replaces 584453101 on select Husqvarna, AYP, and related mower deck applications.

What size is this belt?

This belt measures 1/2 inch wide by 105-3/4 inches long.

Does this fit Husqvarna YTH21K46?

This belt is commonly associated with the Husqvarna YTH21K46 46-inch deck path. Confirm your original belt number before ordering.

Does this fit Poulan PP20VA46?

This belt is commonly associated with select Poulan PP20VA46 46-inch deck applications. Match your original belt number and deck size before ordering.

Can I order this belt by deck size only?

No. Deck size is only a starting point. Match the original belt number, belt length, belt width, mower model, and belt routing before ordering.

Why does my deck belt keep coming off?

A deck belt may come off because of worn idler pulleys, bad spindle bearings, weak tension springs, bent belt guides, incorrect routing, or the wrong belt size. Inspect the full deck drive system before installing a new belt.

Need other deck parts for this setup? Browse mower blades, spindle assemblies, deck pulleys and idlers, and deck rebuild kits.

Need a different belt? Browse the full mower deck belts collection.