ONAN
ONAN 4390057 - ADAPTER O RING ONAN/CUMMINS - Original OEM part
- Payment methods
-
- SKU:
- ONAN 4390057
- MPN:
- 4390057
- Availability:
- Ships (leaves our warehouse) within next business day if in stock
- Shipping:
- Calculated at Checkout
For further inquiries click here


- WARNING:
-
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Description
Cummins ADAPTER O RING /CUMMINS 4390057
Discover the quality and reliability of the original ADAPTER O RING /CUMMINS (SKU: 4390057) available at our store. We pride ourselves on offering genuine Cummins parts, ensuring your equipment performs at its best. With competitive pricing and fast shipping, you can trust us to deliver the parts you need without delay. Enhance the performance of your outdoor equipment today—order the ADAPTER O RING now and experience our commitment to excellence!
The ADAPTER O RING /CUMMINS (SKU: 4390057) is a crucial sealing component designed to ensure a tight fit between parts in various outdoor equipment. It prevents leakage of fluids and maintains optimal performance by minimizing pressure loss. Made from durable materials, this O-ring withstands changing temperatures and harsh conditions, ensuring longevity and reliable operation. Its precise design allows for easy installation, making it an essential part for maintaining the efficiency and functionality of your machinery.
Cummins is renowned for producing high-quality equipment and components that stand the test of time. Their commitment to excellence ensures that every part is engineered with precision, providing exceptional reliability and performance. Customers can trust in the durability and functionality of these products, enhancing the overall efficiency of outdoor equipment. With a focus on innovation, Cummins continues to lead the way in delivering solutions that meet the demands of any task, making them a preferred choice for all professionals and enthusiasts alike.
With years of expertise in home garden and outdoor equipment, we offer a wide array of original replacement parts designed to enhance the performance of your tools. Our inventory includes various components tailored for lawn mowers and outdoor equipment, ensuring that you can find exactly what you need to keep your machinery running smoothly. By prioritizing quality and compatibility, we help you maintain the efficiency and longevity of your outdoor tools, enabling you to achieve the best results in your care routines.
Utilizing OEM parts is essential for preserving the integrity of your machines. These components are engineered to meet precise specifications, ensuring optimal performance and reliability. When you choose original parts, you not only enhance the functionality but also safeguard against potential issues that may arise from inferior alternatives. Investing in quality components protects your investment, promotes longevity, and offers peace of mind, allowing you to focus on your tasks without worry.
At our store, we pride ourselves on providing exceptional customer service to assist you in locating the right parts and manuals for your needs. Our knowledgeable team is dedicated to ensuring you find the best replacements at competitive prices. Whether you require expert guidance or detailed information, we are here to help you navigate our extensive selection and make informed choices. Trust us to support you in keeping your equipment running smoothly and efficiently.
4390057 Replacement Specs
Part Manufacturer: Cummins
Product Number: 4390057
Cummins Manuals and Additional Information
Explore our extensive inventory where you can discover a variety of components for Cummins. For quick access to essential items, visit the fast moving parts section, designed to streamline your search for reliable replacement parts. Ensure your equipment operates smoothly with our quality offerings tailored to meet your needs.
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.