ONAN 185-6003 THERMOSTAT COVER - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 185-6003
- MPN:
- 185-6003
- 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 replacement part, precisely engineered for exact fit and superior durability
- Ensures accurate thermostat housing protection, maintaining optimal engine temperature control
- Supports engine efficiency by preventing leaks and preserving coolant system integrity
- Maintain system reliability and performance with original Cummins/Onan quality components
ONAN 185-6003 THERMOSTAT COVER - Precision Protection for Reliable Power from ONAN
The ONAN 185-6003 Thermostat Cover plays a vital role in safeguarding the thermostat assembly, crucial for your generator’s temperature regulation and operational efficiency. Designed to fit seamlessly within your Cummins Onan system, this cover helps prevent coolant leaks and protects engine components under demanding conditions. Secure this essential component now to keep your power source running smoothly. Maintain system reliability and performance with original Cummins/Onan quality components.
Benefit that elevates confidence and performance
- 100% genuine ONAN part guarantees full compatibility and extends engine service life
- Enhances cooling system integrity, reducing risk of overheating and costly downtime
- Durable construction withstands harsh operational environments and vibration stress
- Contributes to consistent engine temperature control, optimizing fuel efficiency and reducing emissions
- Preserves warranty compliance by adhering to manufacturer specifications
Details
Category: Covers
Product SKU: ONAN 185-6003
Our team is committed to supporting your purchase with knowledgeable guidance to ensure this thermostat cover is the perfect fit for your Cummins Onan system. Should you need assistance, reach out through our help center where expert advice awaits. We genuinely wish you the very best in your repair journey and long-lasting generator performance.
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