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DeatschWerks DW400 415LPH In-Tank Fuel Pump With Universal Installation Kit

£236.50 £197.08
Availability: In stock

DeatschWerks DW400 415LPH In-Tank Fuel Pump With Universal Installation Kit

The DeatschWerks DW400 is the highest flowing in-tank fuel pump on the market. Quiet operation and pulse width modulation compatibility are delivered via the turbine impeller and computer balanced armature. E85 compatibility is built in via the carbon commutators and a fully encapsulated armature.

The DW400 surpasses the 400LPH benchmark by delivering an industry leading in-tank flow of 415LPH at 40psi. Even more importantly, the DW400 delivers 31% more flow than its nearest competitor, the Walbro 450 "E85", at pressures between 70 and 100 psi.

The DW400 has a 46mm diameter and is compatible with pump gas, E85 and race fuels. The DW400 is also compatible with pulse width modulated pump drivers.

All DeatschWerks fuel pumps are backed by a 3-year no fault warranty.

  • Delivers 31% more flow than its nearest competitor, 'Walbro 450' at pressures between 70 and 100 psi.
  • 500LPH open flow, 415LPH at 40psi.
  • Compatible with all race fuels, pump fuel and E85.
  • Manufactured by Bosch, Germany.
  • Quiet operation and pulse width moderation.
  • Includes integrated check-valve.
  • Carbon commutators to ensure E85 compatibility.
  • Complete universal installation kit (pump, fuel hose, clamps, electrical harness and pre-filter included)

Specification Metric Imperial & Other
Pump Overall Length 138mm 5.43"
Pump Body Length 94mm 3.70"
Pump Diameter 46mm 1.81"
Outlet Fitting Length 22.5mm 0.88"
Weight (Pump Only) 0.55kg 1.21lb
PRV Activation 120psi 8.27bar
Inlet Fitting 14mm ID, 18.1mm OD 0.55" ID, 0.71" OD
Minimum Voltage 6 Volts
Maximum Voltage 18 Volts
Current Draw 40psi 16.5a (13.5v)
Outlet Fitting 3/8" Hose Clamp
External Material Electroplated Steel
Impeller Design Single Scroll Composite Turbine
Connector Terminal Spade Positive/Negative
Kit Contents
Quantity Description
1x DeatschWerks DW400 Fuel Pump
2x Fuel Hose
2x Jubilee Hose Clamps
1x Electrical Pump Wiring Harness
1x Pump Pre-Filter
Further Information

Keeping it simple.
Anyone who has experience in building high horsepower cars has learned the value of simplicity. The K.I.S.S. method is well established in the high-performance aftermarket and applies to fuel systems just as much, if not more, than other aspects of a performance build. The gold standard of simplicity is a single in-tank fuel pump. A single in-tank pump is less complicated, less expensive, lighter in weight, quieter running and more reliable than any other fuel delivery method. For all these reasons, DeatschWerks are big fans of keeping the pump in the tank. There is one drawback, there is a limit to the power a single in-tank pump can support. With the release of the DW400 pump, this limit has just been raised!

Bosch Quality.
The development of a 400+ LPH pump in a footprint small enough for in-tank use is a significant engineering feature. To ensure success, DW turned to Bosch Automotive Aftermarket to collaborate on a solution. Their target was simple yet challenging: Outflow all other in-tank brushed pumps on the market, maintain flow under high loads of fuel pressure and boost pressure and withstand fuels of all types including Ethanol and race fuel. The resulting pump exceeded DW's high expectations not only for performance but also for quality. The DW400 exemplifies the high engineering and manufacturing standards of Bosch, GMBH. The DW400 is manufactured in Germany and then delivered to Oklahoma City, OK where DW performs final QA testing, packaging and distribution.

All performance is packaged into a 46mm body which will fit into many OE aftermarket pump modules. The 46mm body is a 16% smaller footprint than the Walbro 450 'E85' 55mm bell bottom. However, it is also a 7mm diameter increase from a standard 39mm pump. Therefore modifications may be needed to fit the pump into OE modules.

  • If you have any questions or require further assistance please do not hesitate to call or send us an e-mail.
  • The DW400 is a 46mm diameter pump. Standard in-tank pumps are 39mm diameter. Modifications to the fuel pump module will be necessary on some applications.
  • (Wiring) A 400+ LPH pump draws substantial current (16-20 amps at typical operating pressures). Make sure your chassis wiring is up to the task of delivering this much current.
More Information
Fuel Pump Type In-Tank
Body Diameter 46mm
Inlet Size 19mm
Inlet Type Center Inlet
Outlet Size 9mm
Fluid Compatibility Gasoline / Petrol, E5 - Ethanol / Petrol, E10 - Ethanol / Petrol, E85 - Ethanol / Petrol, E100 - Pure Ethanol, Methanol
Manufacturer DeatschWerks

Shipping Information & Charges

VAT is included on the UK prices below, no VAT is applicable on ROW prices.

European Customers: We offer a next working day delivery service to most European countries, please get in touch for pricing.

ROW Customers: If you would like a more accurate shipping quote or a faster service via DHL please get in touch with your requirements.

United Kingdom & Northern Ireland

Service GBP 0 - 50 (inc VAT) GBP 50+ (inc VAT)
RM Second Class 3.60 N/A
RM First Class 4.20 N/A
DPD Next Working Day 9.00 9.00
DHL UK Next Working Day 8.75 8.75
DPD Next Working Day by 12am 16.50 16.50
DPD Saturday All Day 15.00 15.00
DPD Saturday by 12am 39.50 39.50
DPD Sunday All Day 19.50 19.50

Scottish Highlands & Islands, Channel Isles, Scilly Isles, Isle Of Man, Isle of Wight
Service GBP 0 - 50 (inc VAT) GBP 50+ (inc VAT)
RM First Class 4.20 N/A
DPD / DHL Two Day 17.30 17.30


DHL Tracked Delivery. Approx 2 - 7 days depending on distance from the UK.

Country Cost in GBP
AUT - Austria 30.00
BEL - Belgium 25.00
BIH - Bosnia and Herzegovina 50.00
BGR - Bulgaria 45.00
HRV - Croatia 35.00
CZE - Czech Republic 35.00
CHE - Switzerland 42.00
DNK - Denmark 30.00
EST - Estonia 35.00
FIN - Finland 35.00
FRA - France 35.00
DEU - Germany 28.00
GIB - Gibraltar 46.00
GRC - Greece 40.00
HUN - Hungary 35.00
IRL - Ireland 25.00
ISL - Iceland 50.00
ITA - Italy 32.00
LVA - Latvia 46.00
LTU - Lithuania 45.00
LUX - Luxembourg 26.00
NLD - Netherlands 26.00
NOR - Norway 45.00
POL - Poland 35.00
PRT - Portugal 35.00
ROU - Romania 45.00
SRB - Serbia 45.00
SVN - Slovenia 35.00
SVK - Slovakia 35.00
ESP - Spain 30.00
SWE - Sweden 35.00

Rest Of World

Below are the most popular countries we ship to world-wide. If your country is not listed please get in touch for a quote.

DHL Express: We offer shipping via DHL, please get in touch for pricing and more information on their Worldwide 1-2 day services.

Country Cost in GBP
CAN - Canada 60.00
JAM - Jamaica 50.00
JPN - Japan 70.00
MLT - Malta 58.00
MYS - Malaysia 50.00
NZL - New Zealand 52.00
RUS - Russia 50.00
ZAF - South Africa 49.00
THA - Thailand 55.00
USA - United States of America 70.00
SGP - Singapore 90.00


By Order Value: GBP 0 - 50 GBP 50 - 120 GBP 120+
AUS - Australia 40.00 60.00 80.00