4BT Cummins Starter A040J391 OEM

ONAN
Genuine Part
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$463.59
$423.49
$40.10
Availability:
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SKU:
A040J391-A
MPN:
A040J391
Condition:
New
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Description

  • ONAN A040J391-A is a starter made of high-grade metal, fully authorized as a genuine OEM part.
  • Provides efficient engine ignition with robust electrical performance for quick starts.
  • Constructed for durability to withstand heavy-duty engine conditions and frequent use.
  • Authentic OEM part from ONAN ensuring exact fit and compatibility with specific Cummins engines.

A040J391-A Starter – Powering Legacy and Precision in Every Turn

This is a ONAN A040J391-A starter replacement part designed for 4BT Cummins diesel engines. Crafted from durable metal alloys, this OEM authorized part delivers reliable ignition performance essential for engine startup. Officially compatible with Cummins 4BT series engines, it guarantees precise fit and lasting reliability. Choose the authentic ONAN starter to secure your engine’s operational integrity and order today to keep your equipment running strong and steady. Power your engine with precision engineered strength.

Unmatched Starting Power

  • High torque output facilitates rapid engine crank for dependable startups under all conditions.
  • Timely replacement prevents starter failure, avoiding engine downtime and costly repairs.
  • Order the ONAN A040J391-A starter now to restore full engine functionality immediately.

Details

Product Details
SKU A040J391-A
Brand ONAN
Part Type Starter
Material High-grade metal alloy
Purpose / Intended Use Designed to initiate engine rotation by delivering electrical power to the 4BT Cummins engine’s flywheel, this starter ensures smooth and effective ignition. Engineered specifically for Cummins 4BT models, it fits precisely to optimize engine startup reliability and operational safety.


Our customer service team is available to provide expert guidance and help you select the correct part for your engine model. Contact us anytime through our Help Center for personalized assistance to secure the best purchase. We wish you a successful repair and a seamless replacement process.

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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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