The DeatschWerks DW400 module is a drop-in 415 LPH in-tank fuel pump assembly for the 2006-2011 Honda Civic Si K20. It is a direct-fit module that mounts in the factory location and supports high-output and boosted builds that outrun the stock pump.
Specifications
| Type | In-tank fuel pump module (DW400) |
| Flow | 415 LPH |
| Mounting | In-tank module |
| Includes | Complete drop-in module |
| Fitment | Honda Civic Si K20 2006-2011 |
| Part Number | 9-401-7041 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2011 | Honda | Civic | DX |
| 2006-2011 | Honda | Civic | EX |
| 2009-2011 | Honda | Civic | EX-L |
| 2006-2011 | Honda | Civic | GX |
| 2006-2011 | Honda | Civic | Hybrid |
| 2009-2011 | Honda | Civic | Hybrid-L |
| 2006-2011 | Honda | Civic | LX |
| 2009-2011 | Honda | Civic | LX-S |
| 2008 | Honda | Civic | MUGEN Si |
| 2006-2011 | Honda | Civic | Si |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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