Fast delivery within 72 Hours

Cummins 4B 3.9L, 6B 5.9L, 4B 4.5L Piston, New (3926634)

โ€“ Replace Part Number: 3926634, 3802564, CUM3926634 etc.
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: P0264002
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

Think you know the truth about Pistons? We’d bet you’d be surprised.
It’s no secret, rebuilding your rig is one of the most labor (and wallet) intensive repairs out there. Sure, you want your engine to last another million miles but you also want the best price; so what should you choose- OEM or Aftermarket?
When it comes to engine parts, the aftermarket often gets a bad rep. The idea that aftermarket retailers sell cheap parts with zero warranty, delivered in a beat-up box written in another language couldn’t be further from the truth. 4BTdiesel is here to set the record straight; we only sell new Pistons. On top of only offering premium quality parts, we also make sure you save up to 50% off OEM prices. So, when it comes to your Piston, what?s left to want?

Need a little extra proof? Let?s talk Pistons.

  • This brand new piston is manufactured and assembled in an ISO 9001:2008 certified facility, giving you the best of quality and consistency.
  • Want better parts and more money? You got it! You’ll get quality that meets or exceeds the OE’s at a much lower price. This will help keep cash on hand!
  • To sweeten the deal, we have professionally certified factory mechanics on staff to answer all of your technical questions. If it involves Diesel engines, we’ve got you covered!
  • To top it off, this piston is built to OE specifications, ensuring proper fitment and functionality. You can’t beat that!

Contents

  • (1) Piston

Warranty

6-month warranty.

Brand4BTdiesel
Compatible BrandFor CUMMINS
Compatible Engine BrandFor CUMMINS
Replacement Part Number3802564, CUM3926634, M-3926634, M3926634
ConditionNew

Shipping Spec

Weight1.361 kg
Dimensions15.2 × 14.0 × 14.0 cm

โ€“ Replace Part Number: 3926634, 3802564, CUM3926634 etc.
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

Need Help?

Speak to a parts specialists now

Need Help Form Single Product

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.