DeatschWerks DW420 Series Fuel Pump

2006–2011 Honda Civic (Excludes Si) 1.8L

Part #: 9-421S-1007

Overview

The DeatschWerks DW420 Series 420lph In-Tank Fuel Pump is a high-performance upgrade designed specifically for Honda Civics from 2006 to 2011, excluding the Si models. Engineered to meet the demands of enthusiasts seeking reliable, high-flow fuel delivery, this pump ensures your vehicle maintains optimal fuel pressure and volume under spirited driving conditions. Whether you're upgrading for increased power, supporting forced induction setups, or simply replacing a worn-out pump, the DW420 Series offers a perfect balance of performance and durability.

Designed for street and performance applications, this fuel pump provides consistent fuel flow, helping support increased horsepower and torque. Its robust construction and precise engineering make it an ideal choice for those looking to enhance their Civic's fueling system without sacrificing reliability or drivability.

Key Features

The DW420 Series fuel pump incorporates advanced features to ensure top-tier performance and longevity:

• High-capacity 420 liters per hour (lph) flow rate, supporting increased fuel demands for modified engines.
• Direct replacement in-tank design for a seamless, bolt-in upgrade that fits OEM mounting points.
• Constructed with durable, corrosion-resistant materials to withstand the harsh environment inside the fuel tank.
• Precision engineering ensures consistent fuel pressure and flow, reducing the risk of fuel starvation during high-demand scenarios.
• Compatible with ethanol-blended fuels, including E85, for versatile performance tuning.
• Includes an installation kit with all necessary hardware for a straightforward upgrade process.
• Designed to meet or exceed OEM quality standards, providing peace of mind and long-term reliability.

Construction & Design

The DW420 Series fuel pump features a high-quality, corrosion-resistant pump body and a robust internal motor designed for continuous operation. Its compact, OEM-style form factor allows for easy installation within the factory fuel tank without modifications. The pump's internal components are engineered for quiet operation and minimal vibration, ensuring a smooth driving experience. The included installation kit provides all necessary components, including wiring and mounting hardware, simplifying the upgrade process.

DeatschWerks' meticulous manufacturing process guarantees a precise fit and reliable performance, making this pump a trusted choice among Honda enthusiasts and tuners alike.

Installation & Fitment

The DeatschWerks DW420 Series fuel pump is a direct bolt-in replacement for the factory fuel pump in 2006–2011 Honda Civic models (excluding Si). No cutting, drilling, or complex modifications are required for installation. The included hardware and wiring harness make the process straightforward, and basic mechanical skills are sufficient to complete the upgrade. It is recommended to replace the fuel filter and inspect the fuel system during installation to ensure optimal performance.

What's Included

• DW420 Series 420lph In-Tank Fuel Pump
• Installation kit with mounting hardware
• Wiring harness and connectors
• Instruction manual

Ideal For

• Honda Civic owners seeking increased fuel capacity for performance upgrades
• Enthusiasts building turbocharged or naturally aspirated high-power setups
• Drivers needing a reliable, high-flow fuel pump for daily driving and spirited runs