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Fortpro

Piston Kit STD for Cummins 4B & 6B - Replaces 3926632, 3926631, 3919041

Piston Kit STD for Cummins 4B & 6B - Replaces 3926632, 3926631, 3919041

SKU: F020676K

Availability: Low stock: 1 left

$40.73 USD
$40.73 USD
Sale Sold out
Shipping calculated at checkout.

Important things to Consider

CHECK COMPATIBILITY: Ensure that your OEM part number matches the one in our cross-reference list before making a purchase.

PREVENT UNNECESSARY RETURNS: Don’t rely on appearance alone. Always confirm compatibility by verifying part numbers, not just how the part looks.

TRUCK BRAND MENTION DOES NOT GUARANTEE FIT: If we reference a specific truck brand, it doesn’t imply compatibility with all models. Double-check model specifics to avoid any mismatch.

Shipping Policy

In order to send your purchase, our company may use different freight companies like USPS, UPS and some 3erd Carrier Services for Oversize orders, this will not affect the final price of your order. We will send you all the information in due time. 

For Free Shipping and Freight/Oversize Shipments they are some special term you may check at our Terms & Conditions page.

 

Return Policy

If for any reason you need to return a purchased item, we have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must met the conditions stablished in our Terms & Conditions.

To start a return, you can contact us at admin@maxitrucks.com. 

About this Item

  • Optimizes engine efficiency, providing more complete combustion and greater power.
  • Ensures superior performance and long engine life, even in extreme conditions.
  • Designed for Cummins 4B and 6B engines, ensuring a perfect fit and optimal performance.
  • Manufactured with high resistance alloys that withstand extreme temperatures and pressures.
  • Includes all necessary components for a simple and quick installation, reducing downtime.
View full details

Fortpro Piston Kit STD is designed for Cummins 4B and 6B engines, offering a reliable and durable solution to keep your heavy trucks in top condition. This piston kit, which replaces OEM references 3926632, 3926631, and 3919041, guarantees superior performance and long engine life thanks to its manufacture with high quality materials. Compatible with Cummins 4B and 6B engines, this kit optimizes engine efficiency and provides more complete combustion, ensuring your truck can handle the most demanding working conditions. Additionally, installation is simple and quick, reducing downtime and allowing your fleet to get back on the road in no time.


Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.

Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.

  • Brand: Fortpro
  • Vehicle Type: Semi-Trucks / Heavy Trucks
  • Product Department: Engine
  • Product category : Cummins Parts
  • Part Type: Piston
  • OEM Reference #: 3926631
  • Bore Diameter: 4.02 in.
  • Height : 4.15 in.
  • Ring Grooves: 3
  • Pin Bore Diameter: 1.575 in.
  • Applications:
    Cummins 4B Engines Series
    Cummins 6B Engines Series

BOM (Bill of Materials):

  • PISTON OEM Reference: 3926631 pcs x 1
  • PISTON PIN OEM Reference: 3934047 pcs x 1
  • PISTON PIN RETAINER OEM Reference: 3901706 pcs x 2

  • Cummins: 3926632, 3926631, 3919041
  • PAI: 111422, 111423, 111310, 111311, 111312
Dimensions Not Available.