DeatschWerks

DW400 Pump Module with PTFE return kit for 8th Gen Civic SI

DW400 Pump Module with PTFE return kit for 8th Gen Civic SI - Main image
DW400 Pump Module with PTFE return kit for 8th Gen Civic SI - View 2DW400 Pump Module with PTFE return kit for 8th Gen Civic SI - View 3
$872.46 $1179 In stock

Category: Fuel Pump Module Assembly

The DeatschWerks DW400 Pump Module with PTFE return kit provides a direct‑fit replacement for the 8th‑generation (2006‑2011) Honda Civic Si fuel system, delivering reliable performance and durability.

  • Complete pump module assembly designed specifically for the Civic Si K20 engine.
  • Includes a stainless‑steel PTFE return kit improved fuel flow and resistance to wear.
  • Engineered to meet or exceed OEM specifications for fit and function.
  • Easy installation with no modifications required.
  • Backed by DeatschWerks quality standards for high‑performance applications.
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Isabella J. ★★★★★

My 8th gen Si starts instantly now and idles smoothly even after sitting for days. The direct-fit design made installation straightforward, and the PTFE return kit gives me confidence for future power upgrades.

Amelia ★★★★★

Took about an hour to install and the PTFE return kit made routing the lines clean and simple. Fuel pressure is rock solid now, even under harder pulls.

Joshua L. ★★★★★

I’ve been running a flex‑fuel tune for a few months now, and this DW400 module with the PTFE return kit handles E85 like a champ without any pressure drop. The direct‑fit design saved me at least an hour compared to my old frankenstein setup.

Related Products