Drivetrain Differentials and Rear-End Components

Dana

PTO JOINT COMPONENT (25 PER)

$20.07

SKU: D00O 378484-31

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Dana Spicer 378484-31 is a square key designed for alignment in PTO yoke and shaft applications. It measures 0.312 x 2.000 inches and is constructed from durable steel.

This key is part of the Series 1000 and is manufactured to meet Dana's OE standards, ensuring genuine Spicer quality. It undergoes rigorous testing and validation to meet OE specifications, and the latest production upgrades guarantee it performs as well as or better than the original part.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDana
Part NumberD00O 378484-31

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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