ONAN 4058639 ENCLOSURE GRILL Original ONAN/CUMMINS OEM part
ONAN
- Payment Methods
-
- SKU:
- ONAN 405-8639
- MPN:
- 405-8639
- Condition:
- New
- Shipping:
- $35.00 (Fixed Shipping Cost)

Available Inventory
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Competitive Pricing
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Customer Support
Our team is always ready to answer your questions and provide the best assistance.
Description
- Durability meets precision engineering in this essential enclosure grill.
- Robust construction shields critical components for extended generator life.
- Optimized airflow design contributes to optimal cooling and operational efficiency.
- Genuine OEM part by ONAN ensures seamless compatibility with your power system.
ONAN 405-8639 ENCLOSURE GRILL – The Shield Your Generator Deserves
The ONAN 405-8639 enclosure grill is crafted to guard your generator’s vital systems against debris and environmental hazards, preserving its longevity and performance. This OE-manufactured part assures perfect alignment and fit every time. Take the step to safeguard your investment – order your genuine part today and keep your generator running at its best.
Feature that Makes a Difference
- Precisely engineered protection that maintains ventilation while preventing foreign object intrusion.
- Replacing worn grills promptly safeguards engine health and prolongs system reliability under demanding conditions.
- Secure your generator’s future by purchasing this original ONAN part now for guaranteed compatibility.
Details
Product SKU: ONAN 405-8639
Our knowledgeable support team is ready to assist you with expert advice anytime via our help center. We are committed to helping you make the right choice for a smooth repair and sustained performance. We genuinely wish you a seamless buying experience and a successful generator restoration.
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