ONAN 4057257 ACCESS COVER Original ONAN/CUMMINS OEM part

ONAN
Genuine Part
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$78.37
$68.73
$71.59
$9.64
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SKU:
ONAN 405-7257
MPN:
405-7257
Condition:
New
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Description

  • ONAN 405-7257 ACCESS COVER is a durable metal replacement part made to original equipment manufacturer (OEM) specifications.
  • This access cover provides a secure seal and protection for internal components within the generator housing.
  • Constructed for high resistance to wear and environmental factors, ensuring long-term reliability.
  • Officially manufactured by ONAN/Cummins as a genuine OEM component for guaranteed compatibility.

ONAN 405-7257 ACCESS COVER – Fortify your generator’s core with trusted strength and precision

This is a ONAN 405-7257 access cover replacement part designed for ONAN generator models requiring secure housing protection. Fabricated from sturdy metal with OEM authorization, this cover safeguards critical internal parts from dust and damage. It fits models such as ONAN RV QG 4000, MDKAL, and MDKBL series. Engineered for precise fit and durability, it upholds performance standards and extends service life. Upgrade your generator’s defense with a certified OEM replacement. Order now to ensure your equipment runs safely and reliably—strength that powers your journey forward.

Reliable cover for critical generator protection

  • Precisely molded metal cover provides secure sealing for generator internals.
  • Timely replacement prevents exposure that can compromise generator function and safety.
  • Act now to replace worn covers and maintain peak generator operation without risk.

Details

Product Details
SKU ONAN 405-7257
Brand ONAN
Part Type Access Cover
Purpose / Intended Use Designed to cover and protect the internal components of ONAN generators, the access cover prevents debris and moisture intrusion, ensuring safe operational conditions within the generator housing. It maintains structural integrity and supports maintenance access.


Our customer service team is ready to provide expert guidance to help you select the right ONAN part for your generator. Contact us anytime through our Help Center for personalized assistance tailored to your replacement needs. We look forward to helping you complete your repair with confidence and success.

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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.

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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.

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