Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Merchant Automotive 10604 263XHD Transfer CaseThe Merchant Automotive 10604 263XHD Transfer Case is an upgraded replacement for your 2001 2007 GM 6. 6L Duramax LB7 LLY LBZ with push button transfer case operation. Built for increased durability, and reliability, Merchant Automotive has addressed common failure items in the factory case. Merchant Transfer Case Pump Upgrade The GM transfer case use a gear pump inside the case that is driven off the mainshaft. This pump forces oil to the planetary
The Merchant Automotive 10604 263XHD Transfer Case is an upgraded replacement for your 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ with push-button transfer case operation. Built for increased durability, and reliability, Merchant Automotive has addressed common failure items in the factory case.
Merchant Transfer Case Pump Upgrade
The GM transfer case use a gear pump inside the case that is driven off the mainshaft. This pump forces oil to the planetary as well as the drive sprocket sleeve. The 5 tabs around the housing fit into the spots in the rear housing are what positions the pump. Over time, the pump can start to wear on the rear housing. This is commonly referred to as pump rub. Each transfer case includes the Merchant Automotive Pump Upgrade to alleviate these "Pump Rub" issues.
Magnetic Drain Plug
Help extend fluid life, and the life of your transfer case with the Merchant Automotive magnetic drain plug. The drain plug catches debris instead of circulating it through the case. Also included is a fill plug made of high strength corrosion resistant stainless steel.
Merchant Automotive Transfer Case Oil
The included Merchant Transfer Case Oil is specially formulated for your GM transfer case to reduce wear, increase shifting performance, increase component efficiency, and increase driveline performance by reducing clutch chatter.
Features:
- NEW 263XHD Transfer Case
- Brand New - No Core Charge
- Upgraded For Durability & Reliability
- Includes Transfer Case Pump Rub Fix
- Ships With Merchant Transfer Case Oil
- Includes 2-Quart Bottle Of Transfer Case Oil
- Magnetic Drain Plug - Captures Small Debris
- 2 Year / Unlimited Mileage Warranty
Note:
This is for trucks with Push-Button transfer case operation. If you have a manual lever on the floor, see Merchant Automotive 261XHD Transfer Case (Part # 10603).
Encoder motor is not included.
Transfer Case will be shipped with a 2 Quart (64 fluid oz.) bottle. The transfer case WILL NOT BE FILLED WHEN RECEIVED. One Transfer Case will use 64 fluid oz. You MUST fill the transfer case before operating the vehicle or severe damage to the new transfer case will result.
WARRANTY INFO:
2 Year / Unlimited Mile
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
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Product Reviews
★★★★★ 5
Perfect workout shorts!
Special Size: 5" Inseam without Pockets, Size: Medium, Color: Black
Very comfortable and soft material. Great price! Perfect for workouts! Doesn't ride up or have constant pulling on them!
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Nice fabric
Special Size: 7" Inseam with Pockets, Size: X-Large, Color: Taupe
These are well made. The fabric is perfect! Not thin. I was disappointed that I ordered a size that was too large. I had to return. I need to get updated body measurements before reordering.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Buy buy buy!!!!
Special Size: 7" Inseam with Pockets, Size: Large, Color: Taupe
Fantastic! I got These a while back k in another color and needed another pair. I got the green, can you say wow! This color is beautiful and bright! They are as comfortable as my other ones! Worth every dime!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
My favorite pair
Special Size: 7" Inseam with Pockets, Size: Large, Color: Black
The most comfortable pair of shorts I own. Material is soft, pockets are the perfect size.
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Cute but run big
Special Size: 7" Inseam with Pockets, Size: X-Large, Color: Flamingo Pink
Color is fantastic. Very naked feeling. Runs big. I’m a size 12/14 and usually wear XL with them sometimes feeling tight. I am pear shaped - 35” waist, 47” hip and these fit but were quite loose in the waist. I might consider sizing down if I wanted to tighter. They would be very a bump-friendly non-maternity option
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Reviewed in the United States on May 28, 2026
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