ONAN 503-0301 HOSE CLAMP - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 503-0301
- MPN:
- 503-0301
- 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 a genuine OEM ONAN part, meticulously crafted to meet strict Cummins quality standards.
- Designed to provide a firm, leak-proof seal for hoses critical to your generator’s coolant and fuel systems.
- Ensures vibration resistance and maintains secure hose connections under demanding operating conditions.
- Built to uphold system reliability and protect engine health during continuous power output.
ONAN 503-0301 HOSE CLAMP - Precision in Every Turn, Strength in Every Seal
The ONAN 503-0301 hose clamp is an essential component that safeguards your generator’s fluid connections, preventing leaks that could compromise engine performance and safety. Its robust construction and exact OEM specifications make it the trusted choice for repair technicians and generator owners alike. Secure your power system’s reliability by adding this genuine part to your cart today—experience consistency that powers your peace of mind.
Benefit that Empowers Confidence and Durability
- Guaranteed authentic ONAN part ensuring seamless fit and uncompromised performance.
- Resists corrosion and wear, extending the lifespan of your generator’s fluid systems.
- Minimizes downtime by preserving tight connections under thermal and mechanical stress.
- Contributes to optimal engine function by preventing coolant and fuel leaks.
- Supports warranty compliance and upholds safety standards.
Details
Category: Hose Clamps
Product SKU: ONAN 503-0301
Our team is dedicated to guiding you through your purchase with expert advice tailored to your specific generator setup. Should you have any questions, please reach out through our help center for prompt assistance. We passionately strive to support your best repair outcomes and a flawless restoration of power reliability.
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