SKU: 87072808684

WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box - WCF100191

$236.25 $262.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 4 - Sep 9

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Description

WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box - WCF100191WCF100191 4" Intake Pipe 14g Aluminum Construction Air Box & Lid Constructed of 10G Aluminum Sheet Dry Air Filter Outerwear's Pre Filter Cover Includes Installation Hardware Silicone Boot & Stainless Steel T Bolt Clamps O Ring Seal Custom Powder Coat Finish Installs Easily with Basic Hand tools No Tuning Required, Bolt On! Made in USA Availability: WCFab Red with Standard Brushed Tag and WCFab Grey with Standard Brushed Tag in stock and ships in 3 5

WCF100191

  • 4" Intake Pipe
  • 14g Aluminum Construction
  • Air Box & Lid Constructed of 10G Aluminum Sheet
  • Dry Air Filter
  • Outerwear's Pre-Filter Cover
  • Includes Installation Hardware
  • Silicone Boot & Stainless Steel T-Bolt Clamps
  • O-Ring Seal
  • Custom Powder Coat Finish
  • Installs Easily with Basic Hand tools
  • No Tuning Required, Bolt On!
  • Made in USA
Availability: WCFab Red with Standard Brushed Tag and WCFab Grey with Standard Brushed Tag in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.

Description

WCFab 4" Intake Kit with Air Box for 2004.5-2005 LLY 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck.

This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure optimum durability and ease of installation.

Removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant free.

Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

Replaces the following GM part numbers: 19201277, 25345138, 21993711, 15076901

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 87072808684

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4.1 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
Almighty Pain
Waukegan, US
★★★★★ 5
Excellent Structural Privacy Barrier / Zero Assembly Required
Color: Light Beige, Size: 6-Panel
I purchased this 6-panel partition to establish a dedicated recovery zone and create a hard visual perimeter in my room. It serves exactly the function I needed without any unnecessary complexity. ​The structural execution is excellent. It effectively blocks out light and breaks up the room geometry perfectly. Despite being lightweight enough to reposition rapidly, it remains completely stable once anchored in place. ​The best part is the zero-bloat deployment—it was ready to use immediately out of the box with absolutely no complex assembly or external hardware required. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
L
Verified Purchase
Lena H
Whiting, US
★★★★★ 5
Nice!!
Color: Chocolate, Size: 6-Panel
I love this divider. There was no set up at all, simply remove it out of the box, that's it. Thank you for making this easy. The divider is of great quality and easy to store away when not in use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
C
Verified Purchase
Colleen Ellis
West Palm Beach, US
★★★★★ 5
No assembly required
Color: Light Beige, Size: 6-Panel
Absolutely love this! Arrived in a timely manner and it’s very versatile. Blocks the light on our porch on a hot day. Very durable and stable product. The color was as expected and there is no assembly required.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
M
Verified Purchase
Mowrind
Draper, US
★★★★★ 3
Looks ok if you don't look too close. Not likely to last long.
Color: Light Beige, Size: 6-Panel, Color: Light Beige, Size: 6-Panel
Got here fast, which was great since our company "upgraded" its video conferencing software and virtual backgrounds no longer work. But I can only describe the item as rickety and sloppily built. See photos: visible gaps in the weave that show the frame through. Chewed up screws in the hinges look like someone took them out and put them back in several times... or salvaged them from another unit. On the whole, it doesn't seem sturdy. I'll be folding it up and re-deploying it several times a week, so I'll be surprised if it will still stand up in a year. Not a good value for the price, really, except that demand on these right now has prices pushed upward. I'd be happy enough if I'd spent $39.99 rather than over a hundred.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2021
L
Lorraine
Fort Morgan, US
★★★★★ 4
Smooth, Stable, and Perfect for Flexible Spaces
Size: 88''W-4 Panel, Color: Grey, Size: 88''W-4 Panel, Color: Grey
This room divider is incredibly easy to move thanks to its industrial-grade silent casters. It glides smoothly across different floor types with just one hand and without any noise, while the built-in wheel locks keep it firmly in place once positioned, no slipping or unwanted movement. The base with reinforced steel feet adds impressive stability, preventing wobbling even in busy or high-traffic areas. I also love the foldable design, which makes storage effortless when it’s not in use. It folds down compactly and fits neatly into small spaces. I gave only 4 stars because I'm not crazy about the color of the fabric. Otherwise this is a very functional way to separate areas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026

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