DeatschWerks 9-421-0848 DW420 420LPH In-Tank Fuel Pump for 94-05 Mazda M

Vehicle Fitment

• 1994-1997 Mazda Miata (Base, M Edition, STO)
• 1999-2005 Mazda Miata (10th Anniversary, Base, LS, SE, Shinsen, Mazdaspeed)

Fitment Notes

• Designed to replace the OEM in-tank fuel pump on specified Miata models
• Not universal - must match vehicle's fuel tank and module configuration
• Not CARB legal in California and states with equivalent emissions laws

Features

• High-flow DW420 series in-tank electric fuel pump
• Approximately 420 LPH flow rate for improved fuel delivery
• Includes vehicle-specific install kit for direct replacement
• Compact design for OEM fuel housing fitment
• Engineered for reliable operation in both stock and modified engines
• Ethanol (E85) fuel compatible for flexible performance builds
• Designed for modern fuel pump control systems
• Improved throttle response and consistent fuel pressure under load

Specifications

• Brand: DeatschWerks
• Part Number: 9-421-0848
• Series: DW420 In-Tank Fuel Pump
• Flow Rate: ~420 LPH at typical operating pressure
• Mounting Type: In-tank
• Voltage: 12 V operating range
• Fuel Compatibility: Gasoline and ethanol blends (E85)
• Includes: Install kit with necessary hardware for Miata fitment

Included Components

• 1x DW420 420 LPH In-Tank Fuel Pump
• 1x Vehicle-specific Install Kit
• Note: May require proper electrical hardwiring kit for optimal performance

Product Description

The DeatschWerks 9-421-0848 DW420 series fuel pump is a high-flow in-tank pump engineered specifically for Mazda Miata models from 1994-2005. With a robust flow rating of approximately 420 liters per hour, this pump delivers improved fuel delivery over the stock unit, supporting spirited driving and performance builds. The DW420 design features a compact housing that fits directly into the OEM fuel tank module without extensive modification.

Included with the pump is a dedicated install kit tailored to the Miata's fuel system, simplifying the upgrade process. This pump is well-suited for enthusiasts looking to enhance throttle response, maintain consistent fuel pressure under load, and support ethanol (E85) compatible setups. While designed for direct fitment, ensuring proper electrical supply using an appropriate hardwire kit is recommended for maximum voltage at the pump and optimal performance.