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Cummins 4B 3.9L, 6B 5.9L, 4B 4.5L Valve Spring Retainer, New (3957913)

โ€“ Replace Part Number: 3957913, M-3939375
โ€“ Fit for: Cummins 4B 3.9L, 6B 5.9L, 4B 4.5L engines
โ€“ Built to OEM specs for a proper fit
โ€“ Send us an inquiry for price

Engine Serial Number (ESN) โ€” Have your engine serial number? Enter it here. We can use it to help review whether this part matches your engine.
SKU: P0264046
30-Day Money Back

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.

  • 30-Day Money Back
  • 2-7 Days Fast Delivery
  • 6 Months Warranty
  • 24/7 Service

Product Details

When it comes to Valve Spring Retainers, 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 Valve Spring Retainer 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 Valve Spring Retainer that will keep you running for another million miles.

Need a little extra proof? Let’s talk shop.

  • Trust the experts with a new valve spring retainer manufactured and assembled in an ISO 9001:2015 certified facility. In other words, you will be provided with the quality and consistency needed to get your rig another million miles.
  • Get where you need to go because you are given the proper fit and functionality of your retainer made to OEM specifications.ย 
  • Tired of ridiculous OE prices? Us too. Put the OE to shame with an equal or better quality at up a much lower price compared to the OE.

Contents

  • (1) Valve Spring Retainer

Warranty

6-month warranty.

Brand4BTdiesel
Compatible BrandFor CUMMINS
Compatible Engine BrandFor CUMMINS
Replacement Part NumberM-3939375, M3939375
ConditionNew

Shipping Spec

Weight0.00454 kg
Dimensions7.6 × 12.7 × 0.6 cm

โ€“ Replace Part Number: 3957913, M-3939375
โ€“ Fit for: Cummins 4B 3.9L, 6B 5.9L, 4B 4.5L engines
โ€“ Built to OEM specs for a proper fit
โ€“ Send us an inquiry for price

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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.