This BW4484 remanufactured transfer case for sale is a direct replacement unit designed for 2003–2007 Hummer H2 models equipped with a 6.0L V8 engine and 4L65E or 4L60E automatic transmission. Featuring a 27-spline input shaft and electronic shift operation, it seamlessly integrates with your vehicle’s drivetrain for optimal performance.To ensure a flawless fit for your Hummer H2, we kindly ask that you provide your vehicle information in the field box before ordering. Once your order is placed, we’ll use this information to verify fitment.
- Each BW4484 unit is fully rebuilt with upgraded internal components to enhance durability, lifespan, and overall performance. Our precision remanufacturing process includes new bearings, seals, and upgraded heavy duty forks, as well as a thorough inspection and replacement of any worn or compromised parts. Case halves are thoroughly checked and machined when necessary. Our unit upgrades address all common failure points that occur in these H2 transfer cases to ensure your unit performs reliably under various driving conditions.
About This Unit
The BW4484 transfer case, manufactured by BorgWarner, was the OEM unit for 2003–2007 Hummer H2 vehicles. It features a full-time 4WD system with a 2.64:1 low-range gear ratio, providing robust off-road capability and on-road stability. The unit’s aluminum case construction offers a balance of strength and weight savings.
- This Hummer H2 transfer case is currently on sale—making now the perfect time to replace or upgrade your OEM unit with a fully remanufactured model built to exceed factory standards.
Replacing a high-end AWD unit like the BW4484? Here’s why Hummer owners trust Transfer Case World.
Fitment Details
Vehicle Model / Series: Hummer
Build Type: Remanufactured and Upgraded
Vehicle Years: 2003, 2004, 2005, 2006, 2007,
Testing ADAPT (Advanced Dyno And Performance Testing) Our highest level of testing
Specifications: 27 Spline Front Input, (Electric Shift)
Make / Manufacturer: Hummer, Borg Warner
Compatible Models: GM Hummer H2’s
Assembly / Model #’s: 12579914, 12588522, 15064084, 15760035, and 24228426.
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Core Return Policy
We Will Pay For The Core Return Shipping (A Pre-Paid UPS Label Will Be Included In The Package)
*All transfer cases are sold on an exchange basis. In addition to the purchase price paid, we expect to receive a qualified core in return and our original shipping container back in all sales unless other arrangements are agreed upon prior to purchase and notated as such on the invoice. You have 30 days from the invoice date to return a qualified core and the original shipping container to us. If we do not receive a qualified core and our original shipping container within 30 days, you will be expected to pay an additional missing core and container fee ($200-$300 Depending on Unit)
*Note: If you have a bad or missing core, call us to confirm your details. In some cases we may accept an excessively damaged core as a valid Core Return if agreed upon prior to purchasing. If you have no returnable core, we may still be able to fulfill your order with a missing core fee, ($200-$300 Depending on Unit)
THERE WILL BE NO WARRANTY ON THE NEW TRANSFER CASE UNTIL WE HAVE RECEIVED EITHER THE RETURN CORE AND ORIGINAL SHIPPING CONTAINER OR THE MISSING CORE AND CONTAINER FEE. (See our Core Policy Page for more details)
Return/Warranty Policy
What Is Our Warranty Policy?
All of our remanufactured units come with an 18 month unlimited mileage replacement warranty. 36 month extended warranties are also available to purchase!
What Happens If My Unit Is Defective?
If a unit becomes defective within 18 months of purchasing, a replacement Transfer Case will be provided at no cost. In some cases, we may choose to refund the money. Transfer Case World will pay for the cost of return shipping.
*Check Our Warranty Page For More Details*
Return/Warranty Policy
Are Returns Accepted?
Certainly, you may return an item within 14 days from the date of purchase. However, returns are not permissible if the product has been fitted into a vehicle, or has been altered, modified, or damaged. Refunds issued will not cover the initial shipping fees, and the responsibility for the cost of returning the item to us, which may vary by location and carrier rates, falls on the customer.
Will there be a restocking fee?
To process a return with us, you’ll need to obtain a return authorization. Please note that a restocking fee of 10% applies to all returns. Understanding the complexities of drivetrain diagnostics is exhausting, but before making a purchase, please ensure that the issue with your vehicle is indeed due to the transfer case. If a unit has been mounted in your vehicle, it becomes non-returnable. We encourage you to thoroughly verify the need for a transfer case replacement prior to placing an order. Should you need to initiate a return, reach out to us within 14 days of receipt.
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