Fast delivery within 72 Hours
Cummins 6B 5.9L Belt Tensioner, New (3937555)
โ Replace Part Number: 3937555, CUM3937555, M-3939390
โ Fit for: Cummins 6B 5.9L engines
โ Built to OEM specs for a proper fit
โ Send us an inquiry for price
Diesel parts can vary between engine builds. If you choose not to provide an ESN or CPL, we may not be able to confirm fitment before an order is shipped. Please check the part number and engine application carefully to help avoid selecting the wrong part.
Hassle-free 30-day return policy for a risk-free shopping experience.
3 Months Warranty
Enjoy 3-month warranty, ensuring long-lasting reliability and peace of mind.
2-7 Days Fast Delivery
Receive your order within 2 to 7 days, ensuring fast and reliable delivery.
24/7 Service
Round-the-clock support to assist you whenever you need it.
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30-Day Money Back
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2-7 Days Fast Delivery
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6 Months Warranty
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24/7 Service
Product Details
When it comes to belt tensioners, why risk your engine?
Don’t let a small part turn into a major repair. We wouldn’t risk putting sub-par parts into our engines, so why should you?
4BTdiesel only sells belt tensioners that are manufactured in a state of the art facility using top of the line machining and measuring equipment to ensure each part is manufactured to OEM specifications. Combine this with up to 50% off OEM prices, an industry leading 6-month warranty and technical expertise from 4BTdiesel’s certified staff, and you’ve got a quality belt tensioners that will keep you running for another million miles.
Need a little extra proof? Let’s talk shop.
- Want the OE quality without the OE price?ย We have you covered! You can expect the same, if notย better qualityย compared to the OE, for aย lower cost! It doesn’t get much better than that!
- Weย emphasize qualityย here at 4BTdiesel. We make sure your belt tensioner isย manufactured and assembled in an ISO 9001:2008ย certified facility to give you theย quality and consistencyย to depend on.
- Be able toย get back up and running in no time! Your belt tensior is made to OEM specificationsย so it will haveย correct fitment and functionย on your oil pan.
Contents
- (1) Belt Tensioner
Warranty
6-month warranty.
Specifications
| Brand | 4BTdiesel |
|---|---|
| Compatible Brand | For CUMMINS |
| Compatible Engine Brand | For CUMMINS |
| Replacement Part Number | CUM3937555, M-3939390, M3939390 |
| Condition | New |
Shipping Spec
| Weight | 1.474 kg |
|---|---|
| Dimensions | 11.4 × 10.2 × 20.3 cm |
โ Replace Part Number: 3937555, CUM3937555, M-3939390
โ Fit for: Cummins 6B 5.9L engines
โ Built to OEM specs for a proper fit
โ Send us an inquiry for price
Warranty
For new Cummins parts, we provide 90-day warranty. Quality is our commitment. 4BTDiesel ensures your peace of mind! For complete warranty details, please view our Warranty Policy.
Shipping
We ship worldwide and offer full expedited delivery to ensure your construction machinery back in action, fast. Check out our Shipping Policyย for more details.
Easy Return
We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.
