V Ribbed Belt 4943125 4946198 for Cummins Engine QSB5.9 CM850
Available to Order
Not sure which part fits your equipment?
Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
This heavy-duty V Ribbed Belt is engineered to provide reliable power transmission and operational efficiency for your Cummins engine. Built to withstand the rigorous demands of industrial environments, it ensures consistent performance for critical engine components.
Key Features & Performance
- High-tensile internal cords to prevent stretching and maintain proper tension.
- Advanced rubber compound designed for superior heat and oil resistance.
- Precision-engineered ribs to maximize surface contact and minimize slippage.
- Built for quiet operation and reduced vibration during high-RPM usage.
Fitment & Compatibility
- Compatible Models: Cummins Engine QSB5.9 CM850
- Part Number(s): 4943125, 4946198
Technical Specifications
- Product Type: V Ribbed Belt
- Engine Series: QSB5.9
- Control System: CM850
Frequently Asked Questions
- Q: Is this a direct replacement for my existing belt? A: Yes, this part is designed to meet the exact specifications and dimensions of the original equipment part numbers listed.
- Q: How do I know if this belt fits my specific engine? A: You should verify that your engine model is a QSB5.9 with the CM850 controller and that your current belt matches part number 4943125 or 4946198.
Compatibility may vary by serial number. Verify fitment before purchase.