DW300C 340 L/h In-Tank Fuel Pump & Install Kit

Fitment

Choose your exact year, make, model, and trim to review this product’s applications.

Description

DeatschWerks 9-307-1009 combines the compact in-tank DW300C pump with its application-specific install kit.

Application and compatibility

The manufacturer lists 2002–2006 Acura RSX, 2001–2005 Honda Civic and 2006–2015 Mazda MX-5 NC applications. The linked pump-installation guide covers Civic and RSX installations.

Technical specifications

Specification Value Manufacturer part number 9-307-1009 Series DW300C Flow 340 L/h at 40 psig in manufacturer chart Chart flow at 60 psig 295 L/h Chart flow at 100 psig 220 L/h Current at 40 psi 11.7 A at 13.5 V Input Voltage 6 V minimum; 18 V maximum Pressure Relief Activation 100 psi Weight 10.2 oz / 290 g Outlet 5/16-in hose-clamp connection Inlet 7.7 mm ID; 11.0 mm OD Terminals Positive/negative spade Manufacturer use restriction

Manufacturer specifies sanctioned-competition use on vehicles never used on public roads or highways, unless permitted by a specific regulatory exemption.

Manufacturer documents

Manufacturer product page

Manufacturer technical sheet

Civic/RSX installation guide

Manufacturer warranty policy

Product specifications

Key features

• Turbine impeller and balanced armature support quiet operation and PWM compatibility
• Carbon commutator and encapsulated armature provide E85 compatibility

Specifications

General

What's in the box

• DW300C 9-307 pump
• Two 3-116 O-rings
• Super Lube

The FPHWK 12-gauge hardwire kit is sold separately; the manufacturer strongly recommends it for pump voltage and performance.

Install & Results

At a glance

• For the Civic/RSX procedure, transfer the OE outlet O-ring spacer and use both supplied O-rings on the new pump outlet. The fuel-sock retainer clip is not reused. Follow the factory service manual for removal of the fuel-pump assembly; it takes priority over conflicting supplemental instructions. The linked guide does not cover the MX-5 installation.

Emissions

Status: Manufacturer usage restriction

Manufacturer specifies sanctioned-competition use on vehicles never used on public roads or highways, unless permitted by a specific regulatory exemption.

Warranty

Limited warranty (documented)

DeatschWerks provides a limited lifetime warranty for purchases after May 1, 2026; earlier purchases carry its three-year term. Coverage is for the original purchaser and intended application and is non-transferable. Proof of purchase and an RMA are required. Labor, consequential costs and normal wear items are excluded under the policy.

Term: Limited lifetime for purchases after May 1, 2026

Manufacturer warranty policy