9-421-1031 - DeatschWerks DW420 Fuel Pump - BMW E36 & E46 3 series
DeatschWerks DW420 Fuel Pump - BMW E36 & E46 3 series
A direct-fit upgrade over your restrictive factory unit, this all-in-one 420 LPH high-flow pump drops straight into the OE cradle without fuel hat modifications.
The DeatschWerks Fuel Pump is a premium DW420 series 420LPH electric in-tank fuel pump packaged with a specialized vehicle-specific installation kit for classic BMW 3-Series models. Acting as a direct-fit upgrade over your restrictive factory unit, this high-flow pump satisfies the increased fueling demands of modern performance tuning. DeatschWerks builds these units with longevity in mind, putting every design through rigorous 1,000-hour endurance bench testing.
The lightweight composite impeller resists the corrosive qualities of alcohol-blended fuels, while Pulse Width Modulation (PWM) compatibility allows the pump to work smoothly with factory electronic systems. If you are experiencing fuel pressure drop-offs or are stepping up to a turbocharger kit, this inclusive bundle provides the reliable, high-volume fuel delivery your engine management system expects.
Key Features
Direct Factory Replacement: Designed to drop straight into the OE fuel pump cradle of select BMW chassis without permanent fuel hat modifications.
Rigorous Quality Testing: Every individual pump is bench flow-tested by DeatschWerks at operational pressure prior to packaging.
PWM Compatible: Capable of working with Pulse Width Modulation electronics for precise fuel control and reduced electrical load.
Corrosion Resistant Material: Built using premium composite and carbon internals that resist heat, high friction, and chemical wear.
Comprehensive Kit: Includes the high-volume electric pump, specialized wiring harness, fuel strainer, and essential mounting hardware.
Specifications
Brand: DeatschWerks
Manufacturer Part Number: 9-421-1031
Flow Performance: 420 Liters Per Hour
Placement on Vehicle: Internal Fuel Tank
Electrical Draw Configuration: Low-amperage draw, optimized at 13.5V
Pump Housing Dimensions: Compact 39mm body diameter
Product Weight: 1.2 lbs.
Package Dimensions: 6.3 in. (Length) x 4.1 in. (Width) x 2.4 in. (Height)
Inlets / Outlets: 1 Single 11mm Stock Inlet / 1 Single 5/16" Hose Barb Outlet
Turner Tip: Upgrading to this dual-pump kit requires a 10-gauge wiring to safely handle the high electrical draw, along with precise plumbing to retain the factory saddle-tank siphon system and prevent fuel starvation. Additional fuel line plumbing, fuel pressure regulator and ECU may be required.
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
Prop 65 Warning
Product Q&A
Lifetime Replacement
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
E36
318i
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E36
318i
M44 1.9L
Use vehicle selector to confirm fitment
BMW
E36
318ic
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E36
318ic
M44 1.9L
Use vehicle selector to confirm fitment
BMW
E36
318is
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E36
318is
M44 1.9L
Use vehicle selector to confirm fitment
BMW
E36
318ti
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E36
318ti
M44 1.9L
Use vehicle selector to confirm fitment
BMW
E36
320i
M50 2.0L
Use vehicle selector to confirm fitment
BMW
E36
323i
M52 2.5L
Use vehicle selector to confirm fitment
BMW
E36
323ic
M52 2.5L
Use vehicle selector to confirm fitment
BMW
E36
323is
M52 2.5L
Use vehicle selector to confirm fitment
BMW
E36
325i
M50 2.5L
Use vehicle selector to confirm fitment
BMW
E36
325ic
M50 2.5L
Use vehicle selector to confirm fitment
BMW
E36
325is
M50 2.5L
Use vehicle selector to confirm fitment
BMW
E36
328i
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E36
328ic
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E36
328is
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E36
M3
S50 3.0L
Use vehicle selector to confirm fitment
BMW
E36
M3
S52 3.2L
Use vehicle selector to confirm fitment
BMW
E46
323Ci
M52 2.5L
Use vehicle selector to confirm fitment
BMW
E46
323i
M52 2.5L
Use vehicle selector to confirm fitment
BMW
E46
325Ci
M54 2.5L
Use vehicle selector to confirm fitment
BMW
E46
325i
M54 2.5L
Use vehicle selector to confirm fitment
BMW
E46
325i
M54 3.0L
Use vehicle selector to confirm fitment
BMW
E46
325xi
M54 2.5L
Use vehicle selector to confirm fitment
BMW
E46
328Ci
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E46
328i
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E46
330Ci
M54 3.0L
Use vehicle selector to confirm fitment
BMW
E46
330i
M54 3.0L
Use vehicle selector to confirm fitment
BMW
E46
330xi
M54 3.0L
Use vehicle selector to confirm fitment
BMW
E46
M3
S54 3.2L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
For additional information see the terms of use.