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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Merchant Automotive 25904 Transfer Case Pump AssemblyThe Merchant Automotive 25904 Transfer Case Pump Assembly will replace the pump in your 2001 2007 GM 6. 6L Duramax LB7 LLY LBZ. Operating your truck with little to no lubrication due to leaky seals, an improperly installed drain plug, or the dreaded "pump rub" problem can all damage the transfer case pump. Be sure to check the pump for damage from heat or wear if you are rebuilding a transfer case. It must be changed if the metal has become discolored
The Merchant Automotive 25904 Transfer Case Pump Assembly will replace the pump in your 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ. Operating your truck with little to no lubrication due to leaky seals, an improperly installed drain plug, or the dreaded "pump rub" problem can all damage the transfer case pump. Be sure to check the pump for damage from heat or wear if you are rebuilding a transfer case. It must be changed if the metal has become discolored due to heat damage or if there are deep gouges and/or scrapes that could catch a fingernail.
Features:
- High-Quality Materials
- Direct Fit Replacement
- Manufactured To Meet OE Standards
Note: For GM transfer cases with a 49-spline mainshaft.
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
4.1 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Perfect fit!
Size: 14-22 2.0L hybrid, Size: 14-22 2.0L hybrid
This is a good value for a combo package which includes a cabin air filter as well as the engine air filter. Both filters were a perfect fit in my 2019 Honda Accord hybrid. The cabin air filter airflow direction is clearly labeled and the pleats are sturdy. Installation was super easy- just drop the glove box cover, pop the cabin filter cover plate, pull out the grungy old filter and pop in the new one. Easy peasy. The engine air filter is also a perfect fit. No complaints or concerns here.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
The Best Filter Jerry, The Best!
Size: 2" x 10" x 11"
I installed once and it seems to work like a charm. I probably need to go rinse it off since it's been months--but I no longer have Honda telling me I need to replace an air filter when I go get an oil change. They tried but I knew it wasn't mine. LOL. Easy to install, and extremely good quality. No gaps in filter area either.
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Perfect fit for my fit
Size: 2" x 10" x 11"
Bought this for my Honda fit sport. Perfect fit for my fit. We shall see how it works out in the long run. I'm guessing every six months I'll wash it out, give it a light piling with the refresher kit I bought. The car doesn't get driven a lot during the year, so, doing it this way should be more than fine.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Premium, Reusable Cabin Filter – Worth It Long-Term
Size: 2" x 10" x 11"
I've been using the K&N Lifetime Washable Cabin Air Filter in my vehicle for several months, and here's my experience:
Pros:
Washable & Reusable: Eliminates the need for frequent replacements, saving money over time.
Improved Airflow: Noticed a slight increase in airflow through the vents, enhancing cabin comfort.
Odor Control: Effectively reduces musty smells, providing a fresher cabin environment.
Cons:
Initial Cost: Priced higher than disposable filters, but the long-term savings offset this.
Cleaning Required: Needs periodic cleaning to maintain performance, which might be inconvenient for some users.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
Must have over other filters.
Size: 2" x 10" x 11"
Amazing KN never fails for cabin filter works great in my 2021 Honda Civic hatchback sport touring.Must have for the 10th Gen Civic better air flow in car and cleaner smell easy to wash and reuse.
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Reviewed in the United States on April 25, 2026