aFe

aFe Gasket Kit 01-04 GM Silverado/Sierra 6.6L Duramax

SKU: afe48-34009-PK UPC: 802959482100
In stock
Backordered From Supplier – Call for Availability

⚠ Call for Availability

This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.

Call: (503) 662-9752 | Email Us: info@dfispdx.com

Regular price $1,329.00
Regular price -20% $1,661.25 Sale price $1,329.00

Have a question about this part? We'll answer it.

Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

The aFe POWER Twisted Steel Gasket Kit (part number 48-34009-PK) is engineered as a direct-fit upgrade for the 2001-2004 GM 6.6L Duramax.

Construction: These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. 2" Inner Liner Flex Pipes: The down-pipes utilizes heavy duty 2" flex tubes with internal inner liner. Leak-Free Seal: High quality 3/8" thick flanges are used for a complete 360 degree sealing surface. Machined Ports: These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance. Auxiliary Ports: An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points. Hassle-Free Installation: These manifolds are compatible with the stock up-pipes, which allows the manifolds to be installed without having to remove the turbocharger down-pipe or the up-pipes.

Vehicle Fitment

  • 2001 - 2004 Chevrolet Silverado 2500 HD 6.6L Duramax
  • 2001 - 2004 GMC Sierra 2500 HD 6.6L Duramax

Features & Benefits

  • Equal-length primary tubes improve exhaust scavenging
  • 304 stainless steel construction with CNC-machined flanges
  • Engineered and tested by aFe POWER
  • Direct-fit replacement requiring no permanent modification

Specifications

  • Brand: aFe POWER
  • Manufacturer Part Number: 48-34009-PK
  • SKU: afe48-34009-PK
  • Product Line: Twisted Steel
  • Part Type: Gasket Kit
  • Engine Code: LB7

Always verify aFe POWER part number 48-34009-PK against your vehicle's year, engine, and configuration before ordering.

Shipping Height: 17.0

Shipping Length: 29.0

Shipping Width: 17.0

Rebuilt by Techs Who Only Do Diesel

Injectors, pumps, and turbos, serviced by people who've been doing this for decades — not a parts counter with a catalog.

Get A Quote