ONAN 146-0590 VALVE VACUUM SUSTAIN - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 146-0590
- MPN:
- 146-0590
- Condition:
- New
- Availability:
- Factory Backorder
- Shipping:
- View Shipping Rates


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Description
- This is a genuine OEM ONAN part engineered to original Cummins standards
- Ensures optimal vacuum sustainment critical for engine operation stability
- Contributes to maintaining precise air flow regulation for combustion efficiency
- Trust in authentic parts designed for dependable long-term performance
ONAN 146-0590 VALVE VACUUM SUSTAIN - Precision engineered by ONAN for your power’s heart
The ONAN 146-0590 Valve Vacuum Sustain is an essential component that guarantees stable vacuum control within your generator's fuel system, enabling consistent engine operation even under demanding conditions. Designed for exact fit and reliability, it supports fuel efficiency and emission control. Secure your power system’s health by adding this key part to your maintenance toolkit today. Trust in original parts for enduring operation.
Single benefit that fuels confidence and strong performance
- Authenticity verified: Genuine Cummins Onan component ensures perfect compatibility
- Enhances engine vacuum stability for smoother startup and sustained power delivery
- Durability designed to withstand harsh operating environments and extend service intervals
- Maintains emission compliance and optimal fuel use under varying loads
- Backed by OEM engineering precision to protect your generator investment
Details
Category: Valves
Product SKU: ONAN 146-0590
Our support team is committed to providing knowledgeable assistance to ensure your selection meets your power system needs perfectly. Feel free to reach out via our help center for expert advice tailored to your generator maintenance. We wish you an excellent purchase experience and all the best in keeping your equipment running reliably and efficiently.
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