Drivetrain› Differentials and Rear-End Components
Dana
D40K PDU PARTS - MAJOR AFTER JUNE 2
SKU: D00O 504404-4G
Professional / shop required
Description
This assembly component is essential for proper maintenance and rebuild of the D40K/D404 power divider systems. It includes necessary gears and components to ensure proper drivetrain function within the specified axle series.
The installation of this kit should be performed by qualified heavy-duty vehicle technicians. It requires adherence to the Dana Spicer technical document HAXL-PNI-098 and the specific axle BOM for proper configuration and clearance settings.
The part is axle-series specific and is not compatible with all Dana axle models. Verification via the axle Bill of Material (BOM) number is required to ensure compatibility before ordering.
Fitment
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Specifications
| Brand | Dana |
| Part Number | D00O 504404-4G |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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