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Cummins 4B 3.9L, 4B 4.5L Piston, New (3926635)

โ€“ Replace Part Number: 3926635, CUM3926635
โ€“ Fit for: Cummins 4B 3.9L, 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: P0263745
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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 Pistons, what’s left to want?

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

  • Why sacrifice quality when you don’t have to? You’ll get quality that meets or exceeds the OE’s at a much lower price. This will help keep cash on hand!
  • Quality is a top priority here at 4BTdiesel, that is why this brand new piston is manufactured and assembled in an ISO 9001 certified facility. You’ll receive exceptional quality and consistency.
  • Also, this piston conforms to strict OE specifications to ensure proper fit and function. You can’t beat that!

Contents

  • (1) Piston

Warranty

6-month warranty.

Brand4BTdiesel
Compatible BrandFor CUMMINS
Compatible Engine BrandFor CUMMINS
Engine Number4B 3.9L, Cummins, 6B 5.9L
Replacement Part NumberCUM3926635
ConditionNew

Shipping Spec

Weight1.393 kg
Dimensions12.7 × 12.7 × 12.7 cm

โ€“ Replace Part Number: 3926635, CUM3926635
โ€“ Fit for: Cummins 4B 3.9L, 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.