DeatschWerks 9-437-7220 DW400 Perf Module for 2003-2009 350Z / 2003-2008 G35 3.5

Vehicle Fitment

• 2003-2009 Nissan 350Z (Base / Enthusiast / Grand Touring / Nismo / Touring / Track, 3.5L V6)
• 2003-2008 Infiniti G35 (Base / Journey / Sport / X, 3.5L V6)

Fitment Notes

• Not CARB legal; not for sale/use in California or states with equivalent emissions regulations. 
• Requires upgraded power feed wiring (hardwire) to ensure optimal voltage delivery to the pump. Manufacturer recommends 12-gauge. 
• Retains OEM harness, level sensor, and fuel basket/cage; drop-in replacement of the factory low-pressure pump module. 

Features

• DW400 series performance pump module designed for significantly higher fuel flow over OEM. 
• ≈ 195% more flow than stock low-pressure fuel module. 
• Flow rated about 300 liters per hour at ~3 bar (≈ 300 L/h @ 43.5 psi). 
• Compatible with E85 (ethanol) fuel blends.
• Factory-style module: retains level sensor, mounting, fuel lines, basket, electrical connector. 
• Drop-in design; minimal modifications required for fitment. 
• Includes a 3-year warranty from DeatschWerks. 
• Strong build quality with materials suited for high fuel pressure and long-term durability. 

Specifications

• Part Number: 9-437-7220 (DW400 Performance Module) 
• Flow Rate: ~300 L/h @ ~3 bar (≈195% of OEM) 
• Operating Fuel Type: Gasoline or E85 compatible 
• Applications: In-tank low-pressure pump module drop-in for VQ35DE/VQ35HR engines in 350Z / G35 
• Electrical Requirements: Strong power feed; hardwire upgrade recommended (12-gauge) 
• Dimensions (approx.): weight ≈ 3 lb; size spec ~14 x 9 x 7 in depending on packaging. 
• Warranty: 3-year limited with original purchaser. 

Included Components

• 1x DW400 Performance Pump Module Assembly (factory fuel basket/cage, level sensor, electrical connector) :contentReference[oaicite:18]{index=18}
• 1x Wiring adapter (OEM-style) as required for plug-and-play installation 
• Note: Power feed harness (hardwire) not always included; may be sold separately.

Product Description

The DeatschWerks DW400 Performance Module (Part # 9-437-7220) is a high performance drop-in replacement fuel pump module for the 2003-2009 Nissan 350Z and 2003-2008 Infiniti G35 with the 3.5L V6 (VQ35DE / VQ35HR) engines. It is engineered to replace the factory low-pressure module, delivering approximately 195% more fuel flow (≈ 300 L/h) while maintaining OEM functionality including level sensor, harness connector, fuel basket, and mounting points. This makes it ideal for built or heavily modified VQ engines requiring more fuel delivery for higher horsepower, ethanol blends (E85), or forced induction support.

Installation is straightforward as it is a direct replacement module; however, to ensure the pump receives full voltage under load, upgrading the power feed wiring (using 12-gauge hardwire) is strongly recommended. It is not CARB-legal, so vehicles in California or states with equivalent emissions laws cannot use this part. Fitment is confirmed through models up to 2009 for 350Z and 2008 for G35.