CUMMINS 3643258 EXHAUST MANIFOLD Original OEM part
CUMMINS
- Payment Methods
-
- SKU:
- CUMMINS 3643258
- MPN:
- 3643258
- Condition:
- New
- Shipping:
- $35.00 (Fixed Shipping Cost)

Available Inventory
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Competitive Pricing
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Customer Support
Our team is always ready to answer your questions and provide the best assistance.
Description
- Depend on precision-engineered performance designed to optimize your Cummins engine’s exhaust efficiency.
- Durable construction ensures effective heat resistance and long service life under demanding conditions.
- Restores optimal exhaust flow to maintain engine power, emissions control, and fuel economy.
- 100% genuine OEM Cummins part built to strict quality standards for flawless fit and lasting reliability.
CUMMINS 3643258 EXHAUST MANIFOLD - Empowering Cummins engines to endure every challenge
The CUMMINS 3643258 Exhaust Manifold is purpose-built to handle intense heat cycles and exhaust gases with unwavering durability. As an OEM part, it guarantees full compatibility and preserves your engine’s performance, longevity, and emissions compliance. Secure your engine’s best performance—order your genuine part today and drive forward with confidence.
Key feature to fuel your confidence
- Precisely engineered for superior sealing and thermal resistance to prevent leaks and cracks.
- Replacing worn manifolds on time avoids costly engine damage and maintains fuel efficiency.
- Invest now in this genuine Cummins manifold to ensure dependable operation and peace of mind.
Details
Product SKU: CUMMINS 3643258
Our knowledgeable support team is available to guide you through your purchase, providing expert advice tailored to your needs. Reach out anytime via our help center—we are committed to helping you achieve the best repair and extended powertrain performance. We look forward to being part of your engine’s trusted maintenance journey.
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