CUMMINS 3970403 PLAIN HOSE Original OEM part
CUMMINS
- Payment Methods
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- SKU:
- CUMMINS 3970403
- MPN:
- 3970403
- Condition:
- New
- Shipping:
- View Shipping Rates

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Customer Support
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Description
- Precision meets reliability with Cummins engineering excellence
- Durable, flexible hose designed for optimal fluid transfer under demanding conditions
- Engineered for exact fit and peak performance with Cummins power systems
- Certified genuine OEM Cummins part ensuring compliance and long-term dependability
CUMMINS 3970403 PLAIN HOSE – The Lifeline of Enduring Power
Designed to maintain the integrity and efficiency of your Cummins engine system, the 3970403 plain hose is built to last. This OEM component guarantees full compatibility and enhances engine longevity, safeguarding your investment. Don’t wait for system failure—upgrade now to maintain uninterrupted power delivery and experience true Cummins reliability.
Essential features that matter for peace of mind
- High-quality material resists wear, heat, and pressure for consistent performance
- Timely replacement prevents leaks and costly downtime, protecting your equipment’s health
- Order this genuine Cummins hose today to secure optimal generator operation and peace of mind
Details
Product SKU: CUMMINS 3970403
Our expert team is dedicated to supporting your purchase with knowledgeable guidance via our help center, assisting you in choosing the right replacement for your Cummins power system. We are committed to helping you achieve the best repair outcomes—because your equipment deserves the utmost care and attention.
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