Search  for anything...
UDC Mower Belts

UDC Parts GX21833 Mower Deck Belt Replacement for John Deere 48 Inch D140 L130 L120 LA145 D160 E140 LA130 E170 D155 S170 E160 S140 Z255 GX20571 145 155C D150 E150 LA140 LA155/ Aramid Cord /141.7 inch

  • Based on 12,757 reviews
Condition: New
Checking for the best price...
$24.89 Why this price?
Save $2.00 was $26.89

Buy Now, Pay Later

As low as $6 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Aug 3
Order within 11 hours and 23 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: 141.7"L x 0.559"W


Features

  • Replacement For OEM Parts: John Deere GX20571, GX21833; Cub Cadet/MTD 754-05008, 954-05008
  • Dimensions: 0.56 in. width x 141.70 in. length, for 48 inch Deck
  • Replacement Belt: GX21833 John Deere 48 Inch Deck Belt Compatible with 145 (PC9537), 155C (PC9538), D140 (PC10445), D150 (PC10446), D155 (PC12495), D160 (PC10447), E140 (PC13338), E150 (PC13339), E160 (PC13340), E170 (PC13341), L120 (PC9290), L130 (PC9291), LA130 (PC9633), LA140 (PC9634), LA145 (PC9744), LA155 (PC9745), LA165 (PC9746), S140 (PC13992), S160 (PC13994), S170 (PC13995), X140 (PC9638), X165 (PC10451), X166 (PC13345), X167 (PC13999), Z255 (PC11642), Z355E (PC12789)
  • Fits as a Deck Belt for: Toro TimeCutter 5000, 5000C, MX 5000, MX 5025, MX 5050, MX 5060, MX 5075, MX 5075T, ZS 5000, ZS 5000TF, SS 5000, SS 5035, SS 5060, MyRIDE, SWX 5000, SWX 5050, MR5075T
  • Fits as a Replacement Deck Belt for: Toro 74387, 74395, 74630, 74631, 74632, 74635, 74637, 74638, 74641, 74643, 74660, 74661, 74694, 74695, 74730, 74731, 74770, 74772, 74775, 74776, 74795, 74798, 75750, 75750TA, 75751, 75753, 75755, 75759, 75761TA
  • Fits as a Replacement Deck Belt for: Exmark QUEST QSS708GEM50200, QSS725GKC50200, QT24KA501, QTE691KA501, QTE708GEM50200, QTE735KC501, QTS691KA502, QTS708GEM50200, QTS725GKC50200, QZE725GKC50200, QZS691CKA50200, QZS708GEM50200
  • Wear Resistance: Lab-tested with low friction and minimal wear volume, ensuring long-lasting performance.
  • Load Capacity: Proven high breaking strength and flexibility to handle heavy-duty use without failure.
  • Material Quality: Built with aramid tensile cords, a natural rubber body, and a two-layer wrapping cover for maximum strength, durability, and flexibility.
  • Designed under controlled standards with a tolerance of 0.40". Slight length variations are a normal part of manufacturing and do not affect performance.

Brand: UDC Mower Belts


Material: Aramid


Product Dimensions: 141.7"L x 0.56"W


Belt Style: Deck Belt


Compatible Devices: John Deere 145, 155C, D140, D150, D155, D160, E140, E150, E160, E170, L120, L130, LA130, LA140, LA145, LA155, LA165, S140, S160, S170, X140, X165, X166, X167, Z255, Z355E See more


Brand Name: UDC Mower Belts


Manufacturer: UDC Mower Belts


Part Number: GX20571


Style Number: GX21833


Included Components: Aramid cord


Unit Count: 1.0 Count


Compatible Devices: John Deere 145, 155C, D140, D150, D155, D160, E140, E150, E160, E170, L120, L130, LA130, LA140, LA145, LA155, LA165, S140, S160, S170, X140, X165, X166, X167, Z255, Z355E


Compatible Lawn Mower Models: Cub Cadet RZT-S50, John Deere 145, John Deere 155C, John Deere D140, John Deere D150, John Deere D155, John Deere E140, John Deere E150, John Deere E160, John Deere E170, John Deere L120, John Deere L130, John Deere LA145, John Deere LA155, John Deere LA165, John Deere Z255, MTD 75751, MTD 75755W, Toro 119-8820, Toro 74694, Toro 75750, Toro 75753, Toro 75755, Toro RZT-L50 KH


Item Dimensions L x W: 141.7"L x 0.56"W


Item Weight: 0.15 Kilograms


Belt Style: Deck Belt


Color: Gray


Material Type: Aramid


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • One Sturdy Belt
Size: 112.1"L x 0.5"W
Great replacement belt for my Toro TimeCutter 42”. The belt is durable, fits properly, and holds up well through regular mowing. I’ve used these before and typically get several seasons of reliable performance before needing to replace one. Excellent value for the price and a dependable alternative to OEM belts. Highly recommended. ... show more
Reviewed in the United States on June 13, 2026 by Colt Phillips
    • excellent
Size: 90.8"L x 0.656"W
Ordered a OEM TROY_BILT same part number and it was too large by a inch and therefore rubbed on other components and did not give me enough pedal response...Ordered this one, same part number as OEM and it fit perfect. No rubbing, good pedal response and correct about of slippage required..Even came with a pully cleaning pad.. ... show more
Reviewed in the United States on May 30, 2026 by mark m
    • Just as good as OEM
Size: 108"L x 0.5"W
I purchased the UDC Parts 954-05022A deck belt as a replacement for the original belt on my Cub Cadet LT46, and it fit perfectly. Installation was straightforward, and the belt matched the factory dimensions exactly, making it a true direct replacement with no modifications or adjustments required. Once installed, the mower deck engaged smoothly and operated just like it did with the original belt. The belt tracks properly, runs quietly, and has handled regular mowing without any issues. Considering the quality and fitment, this belt offers excellent value compared to OEM pricing. If you need a replacement deck belt for a Cub Cadet LT46, I would definitely recommend the UDC 954-05022A. It fit right the first time and got my mower back in service quickly. ... show more
Reviewed in the United States on June 1, 2026 by Eduardo
    • Lasted 9 months
Size: 35.68"L x 0.375"W
It was easy to put on my edger and was a good fit. It worked great for about nine months and then frayed badly, slipped, and needs replacing. I am ordering a new OEM one from Troy Built. My original belt lasted 10 years. Update: I was contacted by this company’s product support and was issued a sincere apology and refund. Great customer service! I change my review from 2/5 to 4/5. I will definitely try this company again in the future. They truly stand behind their products! ... show more
Reviewed in the United States on June 2, 2026 by Callie
    • Perfect fit quality seems nice. Perfect fit quality seems nice.
Size: 122"L x 0.5"W
Review Image by MARK
Five stars all the way, replacement worked a treat seems better quality than the one I originally had and a little set of common sense instructions on a card inside and a complimentary bit of steel wire so if you need to you, can clean the pulley’s the appreciation card was appreciated and I will used this company UDC parts again. The little things means a lot and his a long way. Thank you guys; 10 out of 10 ... show more
Reviewed in the United States on June 2, 2026 Reviewed in the United States on June 2, 2026 by MARK
    • Great replacement, works like OEM.
Size: 69.188"L x 0.625"W
Picked up this lower drive belt as a replacement and it turned out to be a great fit. The size matched perfectly and installed without any issues, which is always a relief when dealing with mower parts. Once everything was back together, the machine ran smoothly with no slipping or unusual noise. The belt feels well constructed—flexible but strong—and it handled regular use without any problems so far. It restored proper drive performance right away, which tells me it’s doing exactly what it should. Overall, this is a dependable replacement part that performs just like the original. Good quality for the price and definitely worth it if you need a solid, no-hassle fix. ... show more
Reviewed in the United States on April 26, 2026 by Jean Paul
    • Just the right belt.
Size: 103.4"L x 0.5"W
This belt fit my Craftsman LT 2000 perfectly. Seems to engage nicely and works great. I've only had it a month, but that's 8 cuts and so far so good.
Reviewed in the United States on June 8, 2026 by maddmurf
    • Looks as good as OEM. 1/3 the price
Size: 60.5"L x 0.5"W
First belt I received shredded almost completely after installation. Not sure what happened. But the belt didn't last a half an hour. Ordered a second belt and installed it and it worked flawlessly. So, a defective belt? Or was it bad installation. Not sure. But very pleased with the second belt and would purchase again. Very much a money saving belt. Troy Bilt belt is 3x the price and haven't had much success with them as well. ... show more
Reviewed in the United States on May 30, 2026 by tml9170

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...