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Cummins 4B 3.9L, 4B 4.5L, 6B 5.9L Upper Connecting Rod Bearing, New (3939390)
โ Replace Part Number: 3939390, CUM3939390, M-3939380
โ Fit for: Cummins 4B 3.9L, 4B 4.5L, 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 Upper Connecting Rod Bearings, 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 Upper Connecting Rod Bearing for Cummins B Series 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 Upper Connecting Rod Bearing that will keep you running for another million miles.
Need a little extra proof? Let’s talk shop.
- This is a fracture split type connecting rod bearing.
- Made of tri-metal construction for long lasting strength and durability.
- Additionally, this rod bearing is tin plated for improved scuffing resistance.
- Our Upper Connecting Rod Bearing is manufactured to the exact OEM specifications so that you can enjoy equal or superior quality than the OE at a noticeably lower price.
- This part has equivalent or better quality when compared to the OE at a considerably lower price.
- It is important to us to ensure the quality, workmanship and consistency of all 4BTdiesel’s parts. That’s why this Upper Connecting Rod Bearing was manufactured and assembled in an environment which is IS0 9001: 2008 compliant.
Contents
- (1) Upper Connecting Rod Bearing
Warranty
6-month warranty.
Specifications
| Brand | 4BTdiesel |
|---|---|
| Compatible Brand | For CUMMINS |
| Compatible Engine Brand | For CUMMINS |
| Replacement Part Number | CUM3939390, M-3939380, M3939380 |
| Condition | New |
Shipping Spec
| Weight | 0.907 kg |
|---|---|
| Dimensions | 12.7 × 12.7 × 12.7 cm |
โ Replace Part Number: 3939390, CUM3939390, M-3939380
โ Fit for: Cummins 4B 3.9L, 4B 4.5L, 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.
