Ribbed Belt 3911584 for Cummins Engine 4B 4BT 6B 6BT 4B3.9 6C8.3 ISB
Keep your Cummins 4BT, 6BT, or ISB engine running at peak performance...
Keep your Bobcat loader running at peak performance with this reliable Belt Tensioner Assembly, designed to maintain optimal accessory drive belt tension for S510-S850 and T550-T870 models. Crafted to replace OEM part numbers 7167165, 7274780, and 7273503, this assembly includes precision-machined pulley and rocker arm components that ensure smooth operation and prevent costly downtime from belt slippage or premature wear.
| Parameter | Details |
|---|---|
| Part Name | Belt Tensioner Assembly |
| Replacement Part Number | 7196910, 7201887, 7145358, 6564692, 7152658, 53DM12, 3GM12110, 59CM835, 7CM12140, 7273604, 7167165, 7274780, 7273503 |
| Compatible Model Brand | Bobcat |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| Brand | Applicable Models |
|---|---|
| Bobcat | S510, S530, S550, S570, S590, S595, S630, S650, S740, S750, S770, S850, T550, T590, T595, T630, T650, T740, T750, T770, T870 |
Equipment downtime costs construction operations thousands of dollars daily. A failing belt tensioner can shut down your Bobcat loader unexpectedly, leaving projects delayed and crews idle. Many operators face the frustration of waiting 2-4 weeks for OEM parts at 30-50% higher prices, or worse—installing counterfeit components that fail prematurely and cause secondary damage.
Our Belt Tensioner Assembly solves these challenges with precision-engineered components that meet OEM specifications. Backed by 10 years of global export experience and partnerships with ISO-certified factories, we ensure each tensioner undergoes rigorous performance testing before shipment. With over 10,000 SKUs in stock at our Guangzhou warehouse, this Bobcat tensioner ships within 2-5 working days to minimize your equipment downtime.
This belt tensioner assembly plays a vital role in maintaining proper belt tension for the engine accessory drive system in Bobcat loaders operating in demanding environments—from construction sites and mining operations to agricultural fields and material handling yards. It ensures consistent power transmission to critical components like alternators and water pumps, even under heavy loads and extreme temperature fluctuations.
The assembly features high-strength steel bracket (7273503) and rocker arm (7274780) that resist bending under tension, while the precision-machined pulley (7167165) ensures smooth belt movement and reduced wear. Heat-treated spring components maintain optimal tension over time, preventing belt slippage that can lead to power loss or accessory failure. All hardware—including bolts (3GM12110, 59CM835) and nuts (53DM12)—meets original torque specifications for secure installation.
Choosing inferior belt tensioners may save money upfront, but often results in costly consequences. Counterfeit parts typically have 1.5x shorter lifespans and can cause belt misalignment, leading to premature accessory failure and unplanned downtime. Our OEM-equivalent assembly reduces total cost of ownership by minimizing replacement frequency and preventing secondary damage, making it a smarter long-term investment for your Bobcat fleet.
Our commitment to quality and reliability has earned the trust of equipment operators worldwide: We source exclusively from ISO-certified manufacturing partners and implement strict incoming material inspections. Every tensioner assembly undergoes pre-shipment performance testing to ensure OEM-equivalent functionality. Backed by a 3-12 month warranty against manufacturing defects, our products are supported by a 20+ team of technical experts ready to verify part compatibility within 2 hours. With 10 years of export experience, we've delivered over 10,000+ parts to satisfied customers across North America, Europe, and Southeast Asia.
Don't let a failed belt tensioner keep your Bobcat equipment idle. Our ready-to-ship assembly ensures minimal downtime—simply provide your machine model and required quantity, and we'll deliver a competitive quote within 24 hours. First-time customers can request sample testing to verify quality before full order placement. The sooner you order, the sooner your loader returns to productive operation.
Q: Is this an OEM part or aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured by ISO-certified factories to meet original specifications.
Q: How can I confirm this tensioner fits my Bobcat model?
A: Provide your machine's model number and serial number, and our technical team will verify compatibility within 2 hours.
Q: What warranty coverage is provided?
A: We offer a 3-12 month warranty against manufacturing defects, with free replacement for qualifying issues.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, ideal for emergency repair situations.
Q: How quickly can you ship this tensioner?
A: In-stock items ship within 2-5 working days via your choice of express, air, or sea freight.
Q: Can I request a sample before placing a bulk order?
A: Yes, first-time customers can request sample testing to verify quality and fitment.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.
Fill in your details and we'll respond within 24 hours with a competitive quote.
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