ONAN 338-4790 CONTROL HARNESS - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 338-4790
- MPN:
- 338-4790
- Condition:
- New
- Availability:
- Ships (leaves our warehouse) within next business day if in stock
- Shipping:
- View Shipping Rates


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Description
- This ONAN 338-4790 Control Harness is a certified genuine OEM component, guaranteeing perfect fit and seamless integration with your Cummins/Onan generator.
- Designed to optimize communication between control modules and electrical systems, it ensures precise power regulation and system responsiveness.
- Durable construction safeguards against wear and environmental stresses, enhancing engine health and reducing downtime.
- Count on original Cummins precision engineering to maintain system reliability under demanding conditions.
ONAN 338-4790 CONTROL HARNESS - Empower Your Generator’s Heartbeat with Genuine Onan Engineering
The ONAN 338-4790 Control Harness plays a crucial role in connecting and transmitting signals within your generator’s control system. Its flawless functionality supports smooth startup, monitoring, and shutdown sequences, protecting your investment and ensuring uninterrupted power supply. Choose this genuine Cummins part today to elevate your generator’s dependability and longevity. Trust in the craftsmanship built for performance and resilience under pressure.
Benefit and feature focused on experience and assurance
- 100% original Cummins/Onan part engineered for flawless compatibility and sustained operation.
- Elevates signal integrity, which translates to enhanced fuel efficiency and lower emissions.
- Robust wiring and connectors resist corrosion and vibration, reducing maintenance frequency.
- Helps maintain warranty validity and adherence to safety standards essential for critical power systems.
Details
Category: Wire Harnesses
Product SKU: ONAN 338-4790
Our knowledgeable team is always available through the help center to guide you toward the ideal part for your generator’s needs. We are passionate about supporting your repair project with expert advice to ensure your equipment performs flawlessly. Thank you for choosing us for your parts — we wish you the very best results and a smooth restoration process.
Returns Information
You may return new, non-used, and unopened items within 30 days of delivery date under a 20% re-stocking fee in case you do not need it anymore or you have ordered a wrong item.
We cannot accept any returns on "Pumps, Motors, Electrical Items & Transmissions" whether the product is used or new, however in rare cases we may allow an exception under a 40% re-stocking fee.
If you need to return an item, please go to our chat located in the lower right corner, select the option “Returns” and follow the steps to submit your request. Please have on your hands pictures of the item, they will be requested. You will shortly receive an answer from our Customer Service Team providing authorization and return instructions. Likewise, if an exception cannot be authorized, you will receive an answer from us. No returns will be accepted in our warehouse without an RMA number (Return Merchandise Authorization).
All return shipping costs are on customer's responsibility and will not be refundable.
Returns are inspected once they arrive. If the inspection determines that the items are used, non-resellable condition, or damaged, the return will be denied and the customer will be contacted to ship the parts back at the customers' request and cost.
Cancellations
You may cancel your order, in whole or in part, only if the part is backordered and it isn't ready to ship. Once an order has been shipped, sent from the supplier to our warehouse, or in the dispatch line, we cannot cancel it. If your order is shipped, you will need to follow our return policy to return the items you no longer want.
If you need to cancel an order or item for any reason, you may submit a cancellation request directly through your account to the "more options" section or contact us by live chat. All the cancellation requests are evaluated before its approval. If you submit a cancellation request out of business hours, on a weekend or holiday, it will be processed on the next available business day.
Please allow for the cancellation to be confirmed, and check your account for updates on the status. The cancellation process usually takes 24-48 hours to be confirmed by email. We will process your cancellation request and issue a refund to your original payment method.
In the event that an item becomes no longer available (NLA), we will cancel it from your order and ship the remaining items to you. We will send you an email notification if we cancel any part of your order.
Some products may contain chemicals known to the State of California to cause cancer or reproductive harm. ⚠️ WARNING: www.P65Warnings.ca.gov