ONAN 357-0020 DIODE ASSEMBLY - ONAN Genuine OEM Part
ONAN
- Payment methods
-
- SKU:
- ONAN 357-0020
- MPN:
- 357-0020
- Condition:
- New
- Availability:
- Ships (leaves our warehouse) within next business day if in stock


Available Inventory
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Competitive Pricing
Enjoy competitive rates and great deals on every order.
Customer Support
Our team is always ready to answer your questions and provide the best assistance.
Description
- Genuine ONAN OEM component designed specifically for Cummins power solutions
- Ensures proper electrical current flow and protects your generator's electrical system
- Supports sustained generator operation by preventing voltage backflow and system failures
- Reliability engineered to maintain system integrity under demanding conditions
ONAN 357-0020 DIODE ASSEMBLY - Powering Reliability with Precision from ONAN
The ONAN 357-0020 Diode Assembly plays a crucial role in maintaining your generator’s electrical stability and longevity. Engineered to fit seamlessly and operate flawlessly within Onan and Cummins generators, it safeguards your investment by ensuring steady current flow and preventing damage from electrical feedback. Order this genuine OEM part today and experience assured dependability under all conditions. Reliability engineered to maintain system integrity under demanding conditions.
Benefit and feature that keep your power system confidently running
- Certified authentic ONAN part guaranteeing perfect compatibility and compliance
- Designed to optimize electrical circuit performance and extend generator service life
- Improves overall power efficiency by stabilizing voltage fluctuations
- Manufactured to withstand rigorous operating environments typical in RV, residential, and industrial applications
Details
Category: Lights
Product SKU: ONAN 357-0020
Our customer support team is dedicated to providing expert guidance tailored to your specific generator needs. Reach out to us through our help center for assistance in making the best choice. We are committed to helping you achieve the optimal repair outcome and long-lasting performance for your power equipment.
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