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Cummins 4B 3.9L, 6B 5.9L, 4B 4.5L Piston Cylinder Kit, New (3903579)

โ€“ Replace Part Number: 3903579, 3802030
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: P0263956
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 Piston Kits, 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 Piston Kits 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 Piston Kit that will keep you running for another million miles.

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

  • You’ll receive a brand new piston kit that is manufactured and assembled in an ISO 9001:2008 certified facility, this ensures high quality and consistency. You can’t beat that!
  • Why sacrifice quality when you don’t have to? You’ll get equal or better quality compared to the OE at a much lower price. That’s more money in your wallet!
  • Plus, this piston kit conforms to strict OEM specifications which gives you proper fit and function.

Contents

  • (1) Piston Kit
    • (1) Turbo Piston Ring Set
      • (1) Top Keystone Piston Ring
      • (1) Oil Control Piston Ring
      • (1) Intermediate Piston Ring
    • (1) Piston Assembly
    • (2) Piston Pin Retainers
    • (1) Piston Pin

Warranty

6-month warranty.

Brand4BTdiesel
Compatible BrandFor CUMMINS
Compatible Engine BrandFor CUMMINS
Replacement Part Number3802030
ConditionNew

Shipping Spec

Weight2.041 kg
Dimensions15.2 × 13.0 × 22.9 cm

โ€“ Replace Part Number: 3903579, 3802030
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.