Belt Tensioner 3936202 3917485 3964636 for Cummins Engine 4BT 6BT 4B3.9 6B5.9 6C8.3
Stop unexpected belt slippage and premature accessory failure on your Cummins-powered excavator...
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<p>Stop downtime from snapped or slipping upper drive belts on your Carrier Transicold refrigerated units — this <strong>Upper Drive Belt 50-00178-24 for Carrier Transicold X2 & Ultra Series</strong> delivers OEM-matched tensile strength and heat resistance, so your unit stays online through peak load cycles.</p> <ul> <li>Fits all major Carrier Transicold models: Extra XT, Ultra XT, Ultra XTC, and full X2 series (1800, 2100, 2100A, <strong>2100R</strong>, 2500A, 2500R)</li> <li>Exact replacement for part numbers 50-00178-24, 500017824, CA-50-00178-24-AM — no cross-reference guesswork</li> <li>Manufactured with aramid-reinforced EPDM compound for superior crack resistance at -40°C to +120°C operating temps</li> <li>Ships same-day from our Guangzhou warehouse — no waiting weeks for OEM backorders</li> </ul>
| Parameter | Details |
|---|---|
| Part Name | Upper Drive Belt |
| Part Number (OEM Reference) | 50-00178-24, 500017824, 50-0017824, CA-50-00178-24-AM |
| Brand Compatibility | Carrier Transicold |
| Machine Model Fitment | Extra XT, Ultra XT, Ultra XTC, X2 1800, X2 2100, X2 2100A, X2 2100R, X2 2500A, X2 2500R |
| Condition | New Aftermarket |
| Warranty | 6-month warranty against manufacturing defects |
| Packaging | Original sealed polybag with branded label, packed in reinforced corrugated box |
| Brand | Applicable Models |
|---|---|
| Carrier Transicold | Extra XT, Ultra XT, Ultra XTC, X2 1800, X2 2100, X2 2100A, X2 2100R, X2 2500A, X2 2500R |
Refrigerated transport operators face costly downtime when upper drive belts snap unexpectedly—especially during peak shipping windows. OEM replacements take 3–4 weeks and cost up to 45% more, while low-grade aftermarket belts often fail within 30 days, triggering secondary compressor damage. With fleets operating across multiple Carrier models, sourcing a single reliable belt for both X2 2100R and Ultra XT units adds complexity—not simplicity.
This Upper Drive Belt 50-00178-24 is engineered to match original Carrier Transicold specifications for tensile strength, elongation, and heat resistance. Built by ISO 9001-certified manufacturers and tested under dynamic load conditions before shipment, it delivers consistent performance in refrigeration unit drive systems. As a professional supplier serving 120+ countries for 10 years, XUNPO stocks this part in our Guangzhou warehouse—ensuring rapid dispatch for urgent maintenance of Carrier X2 and Ultra series units.
This belt operates in high-cycle, temperature-variable environments typical of refrigerated container transport, port logistics, and cold-chain distribution. It transmits power from the engine to the refrigeration compressor under continuous start-stop cycles, with ambient temperatures ranging from -20°C to +50°C. Correct belt selection prevents slippage-induced compressor inefficiency and avoids thermal degradation that leads to premature cracking—critical for Carrier Extra XT and Ultra XT refrigerated units running 18+ hours daily.
The belt uses high-tensile chloroprene rubber (CR) compound with aramid cord reinforcement—providing superior resistance to oil, ozone, and heat compared to standard EPDM belts. Its precise pitch length (12.7 mm) and tooth profile ensure exact meshing with the X2 and Ultra series pulleys, eliminating timing misalignment. Dimensional tolerance is held within ±0.3 mm across width and thickness, guaranteeing full interchangeability with OEM assemblies. Surface hardness (70 ± 3 Shore A) balances flexibility and load-bearing capacity, while the molded edge geometry reduces edge wear during lateral vibration common in road transport applications.
A $25 counterfeit belt may save upfront—but causes $1,200+ in losses: compressor clutch failure due to inconsistent torque transfer, unplanned service calls, and 12+ hours of refrigerated trailer downtime per incident. Industry data shows non-OEM-equivalent belts reduce average service life by 1.5×, increasing total cost of ownership (TCO) by 220% over 12 months. This Upper Drive Belt 50-00178-24 meets ISO 9001 production standards and undergoes 100% functional verification—ensuring predictable performance aligned with Carrier’s published drive system requirements for the X2 2100R and Ultra XTC units.
We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every batch. Every Upper Drive Belt 50-00178-24 undergoes dynamic tension testing before shipment to verify OEM-equivalent durability. We offer a 6-month warranty covering manufacturing defects, with no-questions-asked replacement. With 10 years of export experience and verified shipments to 120+ countries—including repeat orders from logistics fleets in Germany, Saudi Arabia, and Colombia—we back every part with technical expertise. Our 20+ person engineering team confirms part compatibility within 2 hours of inquiry. And because this item is stocked in our Guangzhou warehouse, we ship in-stock orders within 2–5 working days.
Your Carrier Transicold unit shouldn’t sit idle waiting for a belt. Send us your part number, machine model (e.g., X2 2100R), and required quantity—we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. With Guangzhou warehouse stock, your order ships fast—so your refrigerated transport stays operational.
Q: Is this an original Carrier part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket part manufactured by ISO 9001-certified suppliers to match Carrier Transicold’s dimensional, material, and performance specifications for the Upper Drive Belt 50-00178-24.
Q: How do I confirm this fits my specific Carrier unit?
A: Provide your exact machine model (e.g., Carrier Ultra XT or X2 2100R) and serial prefix if available—we’ll verify compatibility using our technical database and respond within 2 hours.
Q: What is the warranty period?
A: 6 months from date of shipment, covering defects in materials or workmanship. Replacement is issued at no cost upon verification.
Q: What is the minimum order quantity?
A: 1 piece. We support urgent repair needs and small-volume procurement without volume pressure.
Q: How quickly will my order ship?
A: In-stock items ship within 2–5 working days. Express courier options (DHL/FedEx/UPS) are available for time-sensitive deliveries.
Q: Can I receive a sample before placing a bulk order?
A: Yes—first-time customers may request one sample of the Upper Drive Belt 50-00178-24 for physical evaluation and fit-check prior to larger orders.
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Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
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