Mower Belt 139573, 532139573 Primary Deck Belt | Fits Husqvarna GTH220 GT190 GTH2250 GTH2550XP Craftsman AYP Poulan Lawn Mower | 83"
139573 primary deck belt replacement for Husqvarna lawn mowers in BlueStars retail packaging.
BlueStars 139573 lawn mower deck belt specifications chart showing 1/2 inch width and 83 inch length measurements.
Replacement mower deck drive belt 139573 for Husqvarna, Poulan, and AYP lawn tractors.
Infographic guide for selecting the correct 139573 lawn mower deck belt by verifying application and parts label.
BlueStars 139573 deck belt and 140218 drive belt combo for Husqvarna and Poulan lawn mower maintenance.
BlueStars premium aramid mower belt showing cross-section construction with rubber, fiber cords, and wrapping cover.
BlueStars 139573 replacement mower deck belt for lawn tractors to fix cutting, noise, and vibration issues.
BlueStars 139573 replacement V-belt showing performance comparison features and aramid cord construction.
BlueStars 139573 replacement belt installation guide showing pulley inspection tips for optimal performance.
Instructional graphic showing a riding lawn mower and a replacement deck belt with four installation steps.
139573 primary deck belt replacement for Husqvarna lawn mowers in BlueStars retail packaging.
BlueStars 139573 lawn mower deck belt specifications chart showing 1/2 inch width and 83 inch length measurements.
Replacement mower deck drive belt 139573 for Husqvarna, Poulan, and AYP lawn tractors.
Infographic guide for selecting the correct 139573 lawn mower deck belt by verifying application and parts label.
BlueStars 139573 deck belt and 140218 drive belt combo for Husqvarna and Poulan lawn mower maintenance.
BlueStars premium aramid mower belt showing cross-section construction with rubber, fiber cords, and wrapping cover.
BlueStars 139573 replacement mower deck belt for lawn tractors to fix cutting, noise, and vibration issues.
BlueStars 139573 replacement V-belt showing performance comparison features and aramid cord construction.
BlueStars 139573 replacement belt installation guide showing pulley inspection tips for optimal performance.
Instructional graphic showing a riding lawn mower and a replacement deck belt with four installation steps.
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139573, 532139573 Primary Deck Belt | Fits Husqvarna GTH220 GT190 GTH2250 GTH2550XP Craftsman AYP Poulan Lawn Mower | 83"

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139573, 532139573 Primary Deck Belt | 83"

Key Features

  • Designed for primary deck drive applications.
  • Constructed with high-strength aramid fiber cords for increased heat and tension resistance.
  • Wrapped outer cover provides protection against debris and abrasion.
  • Resistant to oil, moisture, and extreme temperature fluctuations.
  • Dimensions: 1/2 inch width x 83 inches effective length.

Replaces / Cross-Reference Part Numbers

  • 139573
  • 532139573
  • 578453616
  • 33156
  • 75-169
  • 265-208
  • 7-07938
  • 12-9368
  • 230-0607
  • 810-CBL2349T

Compatibility & Fitment

  • Fits various Husqvarna models including GT190, GT200, GTH200, GTH220, GTH2250, GTH2550XP, YTH180, and SGT18H46.
  • Compatible with select 46-inch and 50-inch mower decks.
  • Designed for units equipped with 18 HP, 20 HP, and 22 HP Kohler engines.
  • Compatible with equipment manufactured by AYP, Craftsman, and Poulan.

When to Replace

  • Visible signs of fraying, cracking, or splitting along the belt edges or inner cord.
  • Excessive slipping or loss of power transfer to the mower blades.
  • Increased noise, vibration, or squealing during deck engagement.
  • Noticeable stretching that prevents proper tensioning via the mower deck adjustment system.
  • Glazing on the sides of the belt, indicating friction-related heat damage.

Installation Tips

  • Engage the parking brake and remove the ignition key before performing any maintenance.
  • Clean the deck pulleys of dirt and grass buildup to ensure proper seating.
  • Lower the mower deck to its lowest position for improved access.
  • Release the tension from the idler pulley system to allow for removal of the old belt.
  • Verify that the new belt is correctly seated in all pulley grooves before applying tension.
  • Test the engagement at a low engine RPM to ensure smooth movement before full-speed operation.
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  • PART NUMBER

    PART NUMBER

    This Deck Belt replaces part number: Husqvarna #139573, 532139573.
  • SAVING SOLUTION

    SAVING SOLUTION

    Enjoy the great feeling when your mower is repaired and works like before - BlueStars brings DIY solutions to help you deal with any trouble.
  • FIX MOWER'S SYMPTOMS

    FIX MOWER'S SYMPTOMS

    Uneven Grass Cutting, Loud or Unusual Noises, Excessive Vibration, Burning Smell, Slipping or Stalling Blades.
  • IMPORTANT NOTE

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility.
CHECK BEFORE INSTALLING

CHECK BEFORE INSTALLING

Pulley Bearings: Make sure they spin freely, as damaged bearings can increase friction and wear | Pulleys Edges: Rust or sharp edges can cause belt damage | Pulley Grooves: Clean debris from the pulley grooves | Tensioner Spring: A weak spring can lead to belt slippage and increased friction
4 SIMPLE STEPS

4 SIMPLE STEPS

1. Remove key & disconnect spark plug wire(s) to prevent start; let engine cool. 2. Raise & secure deck, remove belt covers. 3. Release tension, remove old belt (note/take photos of routing). 4. Install new belt, rotate blades/spindle to check alignment & operation.
Brand Model Number
Note Please use "Ctrl + F" on desktop or the "Find in Page" function on mobile to quickly check your compatible model. (This is not an exhaustive list. You can send us your appliance model and we will help you!)
Husqvarna GT190 (954820051-A), GTH220 (954140012-A, 954002022-A, 954140012-B, 954140012-C, 954140012-D, 954140012-F, 954830167-A, 954830167-B, 954140012-A, 954140012-E), GTH2250 (954567093-A, 954567093-B, 954567093-C, 954567093), GTH2250XP (954567116-A), GTH2550XP (954567116, 954567116-B)
Husqvarna GT200 (Only for 954001112-A, 954002012-A, 954840001-A, HN2050A), GTH200 (Only for 954001122-A, 954001122-VA, 954140046-B, 954000972-A, 954002022-A, 954140046-A, 954840001-A), GTH250 (Only for 954140104-A, 954140104-B)
Poulan PP16H46, PP16H46B, PP1846, PP1846A, PP22H50, PP22H50K, PP20H50J, PP22H50A, PP24H50A, PP16H46A, PP18H46, PP18H46A, PP18H46B, PP20H50JA, PP22H50B, PP22H50KA, PP24H50B, PPRGT20H50A, PRGT20H50B, PRGT22H50A, PRGT22H50C
AYP 4186-74A, 4186-74, 4200-44, 4200V-44, 4200V-54, 421360-C, 421361, 4220-74, 4220-84, 4221-84, 4221H-74, 8188A89, 8188B89, 8209A89, 8209A99, 8209B89, 8228A89, 8228B89, 8248A99, 951941, 951942-C, 951942, 951943, HAGTH220B, TP1946A, YGT1846B, YGT18H46B, YGT18H46C, YGT2046A, YGT2046B, YGT2046C, YGT20D46A, YP1946A, YP1946B
AYP LC20VH50A, TS2050B, TS2050C, TS2051C, TS2051D, TS20CH50A, TS20H50A, TS20H50B, TS20H50C, TS20V51A, TS20VH50A, TS22H50A, TS22H50B, Y2050D, Y2050E, Y20C50A, Y20H50A, Y20V50A, Y20V50B, Y20VH50A, YGT22H50A, YGT22H50B, YGT22H50C, YGT22H50D, YPQGT25H50A
Craftsman 917.250510, 917.250550
Quality Q165H46A, Q165H46B, Q185H46A, Q185H46B, QGT2046A, QGT2046B
Weed Eater SGT18H46A, SGT18H46B, SGT18H46C, WE2050A
Ranch King RKGT25H50A

FAQ

This belt is designed for 46-inch and 50-inch mower decks on various Husqvarna, Craftsman, Poulan, Poulan Pro, AYP, and Roper lawn tractors. Compatible models include, but are not limited to, Husqvarna GTH200, GTH220, GTH2250, GTH2550XP, GT190, and GT200, as well as various YGT and YPT series units.
This belt replaces OEM part numbers 139573 and 532139573. It also cross-references with Craftsman 33156, and is compatible with industry standard replacements such as Rotary 9368 and Prime Line 7-07938.
This is a 1/2-inch wide belt with an approximate effective length of 83 to 83-1/2 inches, depending on the specific tensioning requirements of your deck configuration.
You likely need a replacement if you notice the mower deck losing power under load, the blades failing to engage or spinning slowly, or if the belt is visibly frayed, cracked, or stretched. If you hear a squealing noise when the PTO is engaged, it is often a sign that the belt is slipping due to wear or loss of tension.
Before installing the new belt, inspect your deck pulleys and the idler arm for smooth rotation. If a pulley bearing is seized or the idler arm is stuck, the new belt will overheat and fail prematurely. Additionally, ensure the deck is free of grass buildup, as debris can cause the belt to jump off the pulleys.
Replacing the primary deck belt is considered a medium-difficulty task. It generally requires basic hand tools to remove the deck covers and release the tension on the idler pulley. Depending on your experience, the process typically takes 30 to 60 minutes. We recommend taking a photo of the belt routing before removal to ensure the new belt is threaded correctly through all guides and pulleys.