Keep Your Kubota Cutting — OEM-Spec Deck Belt, Ready to Install
A worn or snapped deck belt shouldn't sideline your mowing season. The C-Yong replacement deck belt is precision-engineered to match Kubota's original K5639-36710 spec, so you get a drop-in fit with zero guesswork. Built for the demands of zero-turn mowing, it restores full cutting power to your 54" deck so you can get back to work — fast.
Key Benefits
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Direct OEM Replacement — Replaces Kubota K5639-36710 exactly; no modifications or trimming required
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Precise 5/8" x 159-5/8" Dimensions — Engineered to OEM tolerances for proper tension, tracking, and blade engagement
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Fits Multiple Kubota Models — Compatible with Z100 EBR, Z100SKH series and RCK54P deck models (ZG127E, ZG127S, 125SKH, 127Z, 127ZA)
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Durable Construction — Built to withstand the high-RPM demands of zero-turn deck operation across varied terrain and conditions
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Easy DIY Installation — Designed for straightforward swap-out; no special tools needed for most Kubota 54" deck configurations
* Always verify your model number and deck size before ordering. Refer to your Kubota owner's manual for installation guidance.
About This Belt
For Kubota owners who depend on their zero-turn mower to deliver a clean, consistent cut every time, downtime is not an option. The C-Yong 5/8" x 159-5/8" deck belt is the reliable, cost-effective solution to get your machine back in peak condition without the dealer markup. Matched to the OEM part number K5639-36710, this belt fits the 54" decks on Kubota's Z100 EBR and Z100SKH series — including RCK54P-ZG127E, RCK54P-ZG127S, RCK54P-125SKH, RCK54P-127Z, and RCK54P-127ZA models. Whether you're a homeowner maintaining a large property or a landscaping professional keeping equipment running between jobs, this belt delivers the performance and fit you need at a price that makes sense.
Product Specifications
| Brand |
C-Yong |
| Item Name |
Deck Drive Belt — Kubota 54" Zero-Turn Mower |
| Belt Size |
5/8" x 159-5/8" |
| SKU |
B0CTC124N3 |
| OEM Part Number |
Kubota K5639-36710 |
| Material |
Heavy-duty rubber composite (OEM-spec) |
| Belt Application |
Deck Drive |
| Compatible Deck Size |
54 Inch |
| Compatible Models |
Kubota Z100 EBR, Z100SKH; RCK54P-ZG127E, RCK54P-ZG127S, RCK54P-125SKH, RCK54P-127Z, RCK54P-127ZA |
| Use Case |
Deck belt replacement for zero-turn lawn mowers |
Our Promise to You
✅ 100% Authentic Product — Genuine C-Yong replacement belt, sold with full product integrity
✅ Fast Shipping — Orders processed promptly with tracking provided every step of the way
✅ 30-Day Returns — Not the right fit? Return within 30 days for a hassle-free resolution
✅ Dedicated Customer Support — Our team is here to help with fitment questions before and after your purchase
✅ OEM-Spec Fit Guarantee — Engineered to match Kubota K5639-36710 dimensions for a confident, correct installation