DeatschWerks DW400 Pump Module for 1999-2004 Chevy Silverado and GMC Sierra V8

DeatschWerks, LLC provides high-performance fuel system solutions for the automotive aftermarket. Located in Oklahoma City, OK, DW houses all of the company?s functions including design, end-manufacturing, quality assurance, sales, marketing, and administration in its 36,000sf facility. DeatschWerks? roots were established in 2004 by offering high flow drop-in fitment fuel injectors. In 2009 DW expanded into fuel pumps with the DW300, the highest flowing in-tank fuel pump of its time. Since then, DW has developed a wide range of innovative fuel system components which include in-tank and in-line pumps, surge tanks, fuel rails, fuel filters, pressure regulators, and fuel-specific lines, fittings, and adaptors. Today, the DeatschWerks line-up of fuel system components includes over 800 SKU?s covering Sport Compact, Modern Muscle, Euro, and Powersport applications. DW400 Pump Module for Chevy Silverado 1500/2500/3500 & GMC Sierra 1500/2500/3500 1999-2004 V8 4.8L/5.3L/6.0L Excl Flex Fuel

The DeatschWerks DW400 Pump Module, part number DWK9-401-7010, is a high-performance in-tank fuel pump solution for select 1999-2004 Chevrolet Silverado and GMC Sierra applications. Designed for V8 engines, this pump module supports 4.8L, 5.3L, and 6.0L configurations while providing the fuel delivery capacity required for demanding street, performance, and modified applications.

DeatschWerks engineered the DW400 Pump Module as a direct-fit fuel system upgrade for compatible trucks, helping simplify installation compared with universal fuel pump conversions. Its integrated module design is intended to work with the factory fuel tank and fuel delivery layout, making it a practical choice when replacing a worn pump or upgrading fuel capacity. This application is for gasoline vehicles and excludes flex-fuel configurations.

DeatschWerks develops fuel system components for Sport Compact, Modern Muscle, Euro, and Powersport vehicles. The DW400 module reflects the brand’s focus on high-flow fuel delivery, reliable construction, and application-specific fitment. Verify the vehicle configuration, engine, fuel type, and model-year application before ordering. This product is not CARB approved and may require acknowledgment of applicable emissions regulations before installation or use.

Key Product Specifications and Technical Data

• Brand: DeatschWerks
• Part Number: DWK9-401-7010
• Product Type: In-tank fuel pump module
• Pump Series: DW400
• Vehicle Make: Chevrolet and GMC
• Application Years: 1999-2004
• Engine Applications: V8 4.8L, 5.3L, and 6.0L
• Fuel Compatibility: Gasoline applications; excludes flex fuel

What’s Included

One DeatschWerks DW400 Pump Module. Installation hardware and vehicle-specific components should be confirmed against the product packaging and application requirements before installation.

Fitment

Designed for select 1999-2004 Chevrolet Silverado 1500, 2500, and 3500 and GMC Sierra 1500, 2500, and 3500 V8 models equipped with 4.8L, 5.3L, or 6.0L engines. Excludes flex-fuel vehicles. Confirm exact trim, drivetrain, fuel system, and engine configuration for proper fitment.

Features:

• High-flow fuel delivery: Supports increased fuel demand for performance-oriented and modified V8 applications.
• Direct-fit module design: Engineered for compatible Chevrolet Silverado and GMC Sierra fuel tanks and factory fuel system layouts.
• Broad V8 application coverage: Fits select 4.8L, 5.3L, and 6.0L gasoline engines from the 1999-2004 model years.
• DeatschWerks engineering: Built by a specialized fuel system manufacturer with experience in pumps, injectors, rails, regulators, and related components.

Fitments:
1997 Chevrolet S10 Base
1997 Chevrolet S10 LS
1997 Chevrolet S10 SS
1997 Chevrolet S10 ZR2
1998 Chevrolet S10 Base
1998 Chevrolet S10 LS
1998 Chevrolet S10 SS
1998 Chevrolet S10 ZR2
1999 Chevrolet S10 Base
1999 Chevrolet S10 LS
1999 Chevrolet S10 Xtreme
1999 Chevrolet S10 ZR2
1999 Chevrolet Silverado 1500 Base
1999 Chevrolet Silverado 1500 LS
1999 Chevrolet Silverado 1500 LT
1999 Chevrolet Silverado 2500 Base
1999 Chevrolet Silverado 2500 LS
1999 Chevrolet Silverado 2500 LT
1999 GMC Sierra 1500 SL
1999 GMC Sierra 1500 SLE
1999 GMC Sierra 1500 SLT
1999 GMC Sierra 2500 SL
1999 GMC Sierra 2500 SLE
1999 GMC Sierra 2500 SLT
2000 Chevrolet S10 Base
2000 Chevrolet S10 LS
2000 Chevrolet S10 Xtreme
2000 Chevrolet S10 ZR2
2000 Chevrolet Silverado 1500 Base
2000 Chevrolet Silverado 1500 LS
2000 Chevrolet Silverado 1500 LT
2000 Chevrolet Silverado 2500 Base
2000 Chevrolet Silverado 2500 LS
2000 Chevrolet Silverado 2500 LT
2000 GMC Sierra 1500 SL
2000 GMC Sierra 1500 SLE
2000 GMC Sierra 1500 SLT
2000 GMC Sierra 2500 SL
2000 GMC Sierra 2500 SLE
2000 GMC Sierra 2500 SLT
2001 Chevrolet S10 Base
2001 Chevrolet S10 LS
2001 Chevrolet S10 Xtreme
2001 Chevrolet S10 ZR2
2001 Chevrolet Silverado 1500 Base
2001 Chevrolet Silverado 1500 LS
2001 Chevrolet Silverado 1500 LT
2001 Chevrolet Silverado 2500 Base
2001 Chevrolet Silverado 2500 LS
2001 Chevrolet Silverado 2500 LT
2001 Chevrolet Silverado 3500 Base
2001 Chevrolet Silverado 3500 LS
2001 Chevrolet Silverado 3500 LT
2001 GMC Sierra 1500 C3
2001 GMC Sierra 1500 SL
2001 GMC Sierra 1500 SLE
2001 GMC Sierra 1500 SLT
2001 GMC Sierra 2500 SL
2001 GMC Sierra 2500 SLE
2001 GMC Sierra 2500 SLT
2001 GMC Sierra 3500 SL
2001 GMC Sierra 3500 SLE
2001 GMC Sierra 3500 SLT
2002 Chevrolet S10 Base
2002 Chevrolet S10 LS
2002 Chevrolet S10 Xtreme
2002 Chevrolet S10 ZR2
2002 Chevrolet S10 ZR5
2002 Chevrolet Silverado 1500 Base
2002 Chevrolet Silverado 1500 LS
2002 Chevrolet Silverado 1500 LT
2002 Chevrolet Silverado 1500 WT
2002 Chevrolet Silverado 2500 Base
2002 Chevrolet Silverado 2500 LS
2002 Chevrolet Silverado 2500 LT
2002 Chevrolet Silverado 3500 Base
2002 Chevrolet Silverado 3500 LS
2002 Chevrolet Silverado 3500 LT
2002 GMC Sierra 1500 Base
2002 GMC Sierra 1500 Denali
2002 GMC Sierra 1500 HT
2002 GMC Sierra 1500 SL
2002 GMC Sierra 1500 SLE
2002 GMC Sierra 1500 SLT
2002 GMC Sierra 1500 WT
2002 GMC Sierra 2500 Base
2002 GMC Sierra 2500 SL
2002 GMC Sierra 2500 SLE
2002 GMC Sierra 2500 SLT
2002 GMC Sierra 3500 Base
2002 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLT
2003 Chevrolet S10 Base
2003 Chevrolet S10 LS
2003 Chevrolet S10 Xtreme
2003 Chevrolet S10 ZR2
2003 Chevrolet S10 ZR5
2003 Chevrolet Silverado 1500 Base
2003 Chevrolet Silverado 1500 LS
2003 Chevrolet Silverado 1500 LT
2003 Chevrolet Silverado 1500 SS
2003 Chevrolet Silverado 1500 WT
2003 Chevrolet Silverado 2500 Base
2003 Chevrolet Silverado 2500 LS
2003 Chevrolet Silverado 2500 LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LT
2003 GMC Sierra 1500 Base
2003 GMC Sierra 1500 Denali
2003 GMC Sierra 1500 SL
2003 GMC Sierra 1500 SLE
2003 GMC Sierra 1500 SLT
2003 GMC Sierra 1500 WT
2003 GMC Sierra 2500 Base
2003 GMC Sierra 2500 SLE
2003 GMC Sierra 2500 SLT
2003 GMC Sierra 2500 WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2004 Chevrolet S10 LS
2004 Chevrolet S10 ZR5
2004 Chevrolet Silverado 1500 Base
2004 Chevrolet Silverado 1500 Hybrid
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 SS
2004 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71
2004 Chevrolet Silverado 2500 Base
2004 Chevrolet Silverado 2500 LS
2004 Chevrolet Silverado 2500 LT
2004 Chevrolet Silverado 2500 WT
2004 Chevrolet Silverado 3500 Base
2004 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 Denali
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
2004 GMC Sierra 2500 Base
2004 GMC Sierra 2500 SLE
2004 GMC Sierra 2500 SLT
2004 GMC Sierra 2500 WT
2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 WT

Air Freight Prohibited: false
Not Carb Approved: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: true
Regular Stock: t
Units Per Sku: 1