DeatschWerks 6-421-30ST 3.0L Staged Surge Tank with Dual DW421 Fuel Pumps

The DeatschWerks 6-421-30ST is a 3.0-liter staged surge tank bundled with dual DW421 in-line fuel pumps, purpose-built for high-horsepower racing and performance applications that demand reliable, uninterrupted fuel delivery. Designed to eliminate fuel starvation under high-G cornering, hard braking, and low fuel level conditions, this system is a direct upgrade over traditional in-tank pump setups.

Key Features:

• 3.0L reservoir capacity — maintains a stable fuel reserve under extreme cornering and off-road angles
• Dual DW421 in-line fuel pumps included — delivers the high flow rates required for demanding power levels
• Staged pump architecture — M5 stainless bulkhead wiring studs support single or dual-stage pump control for efficient everyday driving and full-power race use
• 10AN ORB outlet and 8AN ORB return/inlet ports — high-flow, universal plumbing compatibility
• Three mounting configurations — brackets included for horizontal, recessed, or vertical installation
• O-ring style seals and captured bolts — minimizes potential leak points for a reliable, service-friendly build
• Anodized construction — compatible with gasoline and E85 fuel types
• Pass-through plumbing layout simplifies integration into both custom and OEM-based fuel systems

The DeatschWerks 6-421-30ST surge tank system brings together compact packaging, reduced pump noise, and exceptional installation flexibility — making it an ideal centerpiece for high-horsepower street, track, and motorsport fuel system builds.