Ignitions and Electrical› Computers, Chips, Modules and Programmers

CUMMINS

CONTROL

$1,843.78

SKU: C07J 305-0953-03

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

Easy — 1–2 hours

Description

Exact Replacement for the Onan 305-0953-03 found in Spec A and B HDCAA, HDCAB, HDCAC, and HDCAD diesel models. Includes improved fault code system. Advanced detection system checks the conditions of your brushes, slip rings, and rotor while cranking. These are the most common issues that damage a controller. The generator will not start if damage is probable. Improved circuit design over OEM. Over-sized heatsink for cooler operation. Encapsulated in automotive grade urethane for exceptional corrosion resistance. Please note that this part is NOT compatible with Vehicle Monitoring Systems like Silverleaf/Rozie.

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

BrandCUMMINS
Part NumberC07J 305-0953-03

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.

View Full Return Policy