ONAN 1855158 HEAD COVER GASKET ONAN Genuine OEM Part
ONAN
- Payment Methods
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- SKU:
- ONAN 185-5158
- MPN:
- 185-5158
- Condition:
- New
- Shipping:
- View Shipping Rates

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Description
- ONAN 185-5158 head cover gasket made from high-quality materials for an exact OEM fit
- Provides a secure seal to prevent oil leaks and protect engine components effectively
- Constructed for durability to withstand engine heat and pressure during operation
- Certified genuine OEM part from ONAN ensuring compatibility and quality
ONAN 185-5158 HEAD COVER GASKET – Precision sealing engineered for enduring power and reliability
This is a ONAN 185-5158 head cover gasket replacement part designed for ONAN generator engines. Manufactured from durable, heat-resistant material and authorized as an OEM component, it ensures a tight seal for the engine’s valve cover. This gasket fits models such as ONAN MicroQuiet, Cummins Onan RV QG Series, and specific industrial generators. Engineered for longevity and a precision fit, this gasket supports reliable engine performance. Order your genuine OEM part today and secure your engine’s integrity with confidence – Power that lasts, precision that counts.
Unmatched sealing confidence
- Exact OEM specifications guarantee a perfect seal preventing oil leakage
- Timely replacement prevents engine damage and maintains safe operation
- Replace now to avoid costly repairs and ensure continuous engine reliability
Details
| Product Details | |
|---|---|
| SKU | ONAN 185-5158 |
| Brand | ONAN |
| Part Type | Head Cover Gasket |
| Purpose / Intended Use | Designed to seal the valve cover to the engine head, this gasket prevents oil leaks and protects internal engine components from contamination. It is engineered to match exact OEM dimensions and material standards to maintain engine efficiency and reliability over time. |
Our customer service team is available to provide expert advice to guarantee you select the correct ONAN 185-5158 part for your needs. Reach out via our Help Center for tailored support and assistance. We wish you a smooth purchase and a successful engine repair.
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