3.5L Surge Tank

Name: 3.5L Surge Tank
Brand: DeatschWerks
SKU: 6-000-35ST
Price: 185.38 USD
Availability: InStock
Rating: 4.8 (5 reviews)

$185.38 ~~$299~~ In stock

Category: Fuel Surge Tank

The DeatschWerks 3.5L Surge Tank is a modular, universal fuel surge tank designed to support high-flow fuel systems. It provides additional fuel volume to help maintain stable pressure during demanding driving conditions.

3.5-liter capacity
Modular design for flexible installation
Universal fitment
Compatible with one or two DW350il fuel pumps (PN 9-350)
Engineered under the DeatschWerks brand

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

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

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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

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Customer Reviews (4.8 / 5 · 5 reviews)

Victoria ★★★★★ Oct 22, 2026

Took me a weekend to plumb in, but once it was up and running the modular design made it easy to configure exactly how I needed. Fuel pressure stays rock-solid even when I'm hammering through the gears on track.

Alexander Z. ★★★★★ Oct 21, 2026

The 3.5L capacity is perfect for my turbo setup, and the modular design made it easy to fit into my cramped engine bay. Fuel pressure stays rock solid even during hard pulls, which was exactly what I needed.

Natalie ★★★★★ Oct 20, 2026

Took me a bit to figure out the mounting, but once it was in, the extra 3.5 liters of capacity kept the pressure rock-solid even when the fuel level dropped to a quarter tank. The universal plumbing options saved me from cutting any extra lines.