ONAN 512-0302 HUB COUPLING ASSEMBLY - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 512-0302
- MPN:
- 512-0302
- Condition:
- New
- Availability:
- Ships (leaves our warehouse) within next business day if in stock


Available Inventory
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Competitive Pricing
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Customer Support
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Description
- This is an authentic ONAN genuine OEM replacement part engineered for perfect compatibility.
- Provides reliable mechanical connection between the engine and generator, ensuring smooth power transfer.
- Enhances equipment longevity by reducing wear and vibration in your generator system.
- Maintain warranty compliance and generator safety with original Cummins/Onan components.
ONAN 512-0302 HUB COUPLING ASSEMBLY - Powering Reliability, Engineered to Excel
The ONAN 512-0302 Hub Coupling Assembly is a critical component designed to connect the engine shaft with the generator, enabling efficient energy transfer in your Cummins Onan power system. Manufactured to OEM standards, this assembly safeguards your generator’s performance and durability during continuous and heavy-duty operation. Secure your genuine part today and experience trustworthy power where it matters most.
Performance and Assurance that Drive Confidence
- Crafted by Cummins/Onan to deliver optimal fit and reliable functionality under demanding conditions.
- Engineered to minimize vibration and mechanical stress, protecting both engine and alternator components.
- Maintains engine alignment and reduces operational noise for smoother, quieter power generation.
- Utilizing the original hub coupling preserves your generator’s design integrity and compliance with safety standards.
- Designed to support peak fuel efficiency and long service intervals by reducing mechanical wear.
Details
Category: Hubs
Product SKU: ONAN 512-0302
Our team is committed to guiding you toward the right part with expert advice tailored to your needs. Should questions arise, our support center is ready to assist promptly. We’re passionate about supporting your success and ensuring your generator repair delivers dependable power for years to come.
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