ONAN 100387203 DIESEL ENGINE Original ONAN/CUMMINS OEM part
ONAN
- Payment Methods
-
- SKU:
- ONAN 100-3872-03
- MPN:
- 100-3872-03
- Condition:
- New
- Shipping:
- $105.00 (Fixed Shipping Cost)

Available Inventory
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Competitive Pricing
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Customer Support
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Description
- Precision-engineered for enduring power and reliability in critical applications
- Optimized fuel efficiency contributes to lower operational costs and extended engine life
- Robust construction reduces noise and emissions, enhancing system performance and compliance
- Complete OEM authenticity guarantees seamless compatibility and maintains system warranty
ONAN 100-3872-03 DIESEL ENGINE – The Heartbeat of Trusted Power Solutions
The ONAN 100-3872-03 diesel engine is crafted to uphold long-term operational excellence in your generator system. Built by ONAN as an original equipment manufacturer part, it delivers unmatched reliability and durability that professionals and homeowners value. Ensure your power source’s optimal performance—make your purchase today and fuel the spirit of dependable energy.
Engine Feature That Inspires Confidence
- Designed for seamless integration with your ONAN generator, preserving system integrity
- Timely replacement prevents unexpected downtime, protecting your investment and peace of mind
- Act now to secure superior quality and maintain uninterrupted power delivery in your setup
Details
Product SKU: ONAN 100-3872-03
Our team stands ready to assist you with knowledgeable guidance tailored to your specific needs. Contact our help center anytime for expert support—our commitment is to empower your purchase and repair journey with enthusiasm and care, helping you achieve the best possible outcome.
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