42-Inch Deck Rebuild Kit for Craftsman LT1750, Husqvarna & Poulan | 144959 Belt

Overview

This 42-inch deck rebuild kit is built for select Craftsman, Husqvarna, Poulan, Sears, AYP, and related 42-inch mower decks using the listed belt, blade, spindle, pulley, and idler pulley part numbers.

The kit includes the main wear parts commonly replaced during a mower deck refresh: 2 spindle assemblies, 2 mower blades, 2 spindle pulleys, 2 idler pulleys, and 1 deck drive belt.

This is a good option when your 42-inch mower deck has noisy spindle bearings, worn blades, worn pulleys, slipping belts, noisy idlers, uneven cut quality, deck vibration, or multiple deck parts that need to be replaced at the same time.

Important: Match your mower model, deck size, blade count, and original deck part numbers before ordering. Many Craftsman, Husqvarna, Poulan, Sears, and AYP decks look similar but use different belts, blades, spindles, pulleys, and idlers.

Kit Includes

• 2 spindle assemblies
• 2 mulching mower blades
• 2 spindle pulleys
• 2 flat idler pulleys
• 1 deck drive belt

Compatible Brands & Model Series

This deck rebuild kit is intended for select 42-inch Craftsman, Husqvarna, Poulan, Sears, AYP, and Roper mower decks using the listed replacement part numbers.

• Craftsman: LT1750 and select 38-inch and 42-inch AYP-built mower decks using the 144959 belt path
• Husqvarna: select 42-inch deck applications using the listed belt, blade, spindle, pulley, and idler numbers
• Poulan: select 42-inch deck applications using the listed part-number path
• AYP / Roper / Sears: select 42-inch 2-blade deck platforms using the listed replacement part numbers

Fitment note: This listing is best matched by original deck part numbers. Do not rely on brand or deck size alone.

Replaces Common Deck Belt Numbers

• AYP / Craftsman / Husqvarna / Poulan: 144959, 532144959
• Additional References: 531300766, 21547082, 21547188, 24690

Belt Size: 1/2 inch x 95-1/2 inches

Replaces Common Blade Numbers

• Rotary: 6189
• AYP / Craftsman / Husqvarna / Poulan: 134149, 532134149
• Additional Reference: 594892701

Blade Specs: 21-1/16 inch blade, 2.25 inch width, .134 inch thickness, 5-point star center hole, 5/16 inch outer holes, 3-1/8 inch center-to-center outer hole spacing.

Blade note: Supplier data lists this as a 42-inch 2-blade kit. Confirm your original blade number, blade length, center hole style, and deck layout before ordering.

Replaces Common Spindle Assembly Numbers

• AYP / Craftsman / Husqvarna / Poulan: 130794, 128285, 133172, 137641, 137645, 532130794, 532128285, 532133172, 532137645
• Additional Reference: 8479

Spindle Specs: Supplier-listed spindle height is 7 inches. Spindle assemblies include mounting hardware, blade bolt, washer, pulley nut, and spacer.

Spindle note: This kit uses the 130794 / 532130794 spindle path for select ventilated decks using 5-point star center hole blades. Do not confuse it with similar AYP kits using the 187292 / 192870 / 532192870 spindle path or the 143651 / 532143651 spindle path.

Replaces Common Spindle Pulley Numbers

• AYP / Craftsman / Husqvarna / Poulan: 129861, 153535, 173436, 177865, 532129861, 532173436

Pulley note: Confirm your pulley diameter, bore, belt groove, and spindle fit before ordering.

Replaces Common Idler Pulley Numbers

Flat Idler Pulley Path 1

• AYP / Roper / Sears: 173437, 532173437
• Husqvarna: 532173437

Idler Specs: 3/8 inch ID, 3-7/8 inch OD, 1-1/4 inch height.

Flat Idler Pulley Path 2

• AYP: 104360X, 131494, 173438
• Husqvarna: 532131494, 532173438
• Additional References: 532104360, 155191, 165888, AM103480, AM37321

Idler Specs: 3/8 inch ID, 3-7/8 inch OD, 1-1/8 inch height, metal construction.

Before Ordering

Before ordering this 42-inch deck rebuild kit, confirm:

• Your mower uses a 42-inch 2-blade deck
• Your original belt number matches 144959 or 532144959
• Your spindle numbers match the 130794 / 532130794 spindle path
• Your blade numbers match the 6189 / 134149 / 532134149 blade path
• Your spindle pulleys match the listed 153535 / 173436 / 532173436 pulley path
• Your idler pulleys match the listed 532173437 and 532131494 / 532173438 idler paths
• Your deck shell, belt guides, idler arms, spindle mounting holes, and tension system are in usable condition

Do not install parts until fitment is confirmed. Installed deck parts may not be eligible for return.

Common Symptoms This Kit Helps Fix

• Noisy spindle bearings
• Deck vibration
• Uneven cut quality
• Dull, bent, cracked, or worn blades
• Deck belt slipping, squealing, or jumping off
• Worn spindle pulleys
• Noisy or loose idler pulleys
• Multiple deck parts worn at the same time

Installation Notes

• Park the mower on a level surface and disconnect the spark plug before working on the deck
• Take photos of the belt routing before removing old parts
• Inspect the deck shell for cracks, wallowed holes, rust damage, or bent mounting areas
• Check spindle mounting bolts, blade bolts, washers, belt guides, idler arms, and tension springs
• Compare the new parts to your original parts before installation
• Confirm both idler pulleys are installed in the correct locations before routing the belt
• After installation, rotate the blades by hand with the mower off to confirm there is no contact or binding
• Test the mower at low speed first and listen for vibration, belt tracking issues, squealing, or unusual noise

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 kit fits your mower, send us your mower model number, deck size, blade count, and photos of your original belt, blades, spindles, pulleys, idler pulleys, mower deck, and mower ID tag before ordering.

FAQ

Is this the same as the 46-inch 144959 deck kit?

No. This kit uses the 144959 / 532144959 belt path, but it is built around a 42-inch 2-blade deck layout with the 130794 / 532130794 spindle path. Do not confuse it with 46-inch 3-blade kits using different spindles and blades.

What belt comes in this kit?

This kit includes a deck belt replacing 144959 and 532144959. The listed belt size is 1/2 inch x 95-1/2 inches.

What blades come in this kit?

This kit includes two blades replacing the 6189 / 134149 / 532134149 blade path. Supplier data lists the blade length as 21 inches.

What spindle numbers does this kit replace?

This kit includes two spindle assemblies replacing the 130794 / 532130794 spindle path, along with related numbers listed above.

What idler pulley numbers does this kit replace?

This kit includes two flat idler pulleys, including the 532173437 path and the 532131494 / 532173438 / 532104360 path.

How many blades and spindles are included?

This kit includes 2 mower blades, 2 spindle assemblies, 2 spindle pulleys, 2 idler pulleys, and 1 deck belt.

Can I order this kit by mower appearance?

No. Do not order by appearance alone. Match your mower model, deck size, blade count, belt number, blade number, spindle number, pulley number, idler pulley numbers, and deck layout whenever possible.

Need individual deck parts instead? Browse mower deck belts, mower blades, spindle assemblies, and deck pulleys and idlers.

Need a different deck setup? Browse the full mower deck parts catalog.