ONAN 1100539 VALVE SPRING ONAN/CUMMINS OEM part PACK OF 2
ONAN
- Payment Methods
-
- SKU:
- ONAN 110-0539
- MPN:
- 110-0539
- Condition:
- New

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Description
- Keep your ONAN engine operating smoothly with genuine parts designed for precision and durability.
- Specifically engineered valve spring for consistent valve operation and engine reliability.
- Maintains proper valve timing and helps prevent engine wear and performance issues.
- Official OEM replacement part from ONAN ensuring exact fit and original engineering standards.
ONAN 110-0539 VALVE SPRING - Precision Engine Care with ONAN Excellence
The ONAN 110-0539 VALVE SPRING is a genuine ONAN OEM part designed to support the critical function of valve operation within your two-cycle outdoor power equipment engine. This valve spring plays a vital role in maintaining proper valve tension and timing, which directly affects overall engine performance and reliability. Incorporating the ONAN 110-0539 VALVE SPRING into your maintenance routine helps preserve the original engineering quality of your equipment.
ONAN Performance in Every Coil: Understanding the Valve Spring’s Role
The valve spring in your outdoor power equipment works by applying pressure to keep the valves securely closed when needed, preventing leakage of combustion gases and maintaining engine efficiency. This tension allows the valve to return promptly after opening, coordinating with the camshaft to control airflow and fuel intake. In an ONAN two-cycle engine, the valve spring ensures smooth and consistent valve movement, which is essential for proper combustion and optimal power output.
ONAN Insight on Valve Spring Replacement Timing
Replacing your valve spring at the right time is crucial to avoid engine performance issues and potential damage. Regular inspection helps detect wear before it impacts your equipment’s function.
- Noticeable engine misfires or rough running sometimes indicate a weakening or broken valve spring.
- Reduced engine power or inconsistent idling can signal valve timing problems related to spring fatigue.
- Unusual engine noises such as tapping or clicking often suggest valve spring issues requiring attention.
ONAN Answers: Your Valve Spring Questions Covered
Is the ONAN 110-0539 VALVE SPRING a genuine OEM part?
Yes, the ONAN 110-0539 VALVE SPRING is a genuine ONAN OEM replacement part, manufactured to meet the precise specifications and quality standards intended for your equipment.
How do I verify that this valve spring fits my ONAN engine?
To confirm proper fitment, check your equipment’s model and serial number against the part number ONAN 110-0539. This ensures compatibility and maintains your equipment’s original 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