Quick answer
Choose the DeatschWerks 3.0L Surge Tank for moderate fuel demands and a simpler pump setup, or the 5.5L Surge Tank when you need more capacity and plan to run up to three DW fuel pumps. The 5.5L is the safer pick for high-power builds; the 3.0L suits milder setups where space and budget matter.
Capacity and pump options: the core trade-off
The 3.0L tank gives you 3.0 liters of fuel volume and is sold without pumps, so you select your own pump configuration. That flexibility keeps the initial cost lower, but you must confirm your chosen pump fits and meets your flow target. The 5.5L tank offers 5.5 liters and is explicitly compatible with 1, 2, or 3 DW200, DW300, DW400, or Brushless DW810 pumps. That larger volume and multi-pump support make it the more capable choice for high-power builds, but it costs more and takes up more space.
When the 3.0L makes more sense
If your fuel system runs a single pump or a modest dual-pump setup and you have limited mounting space, the 3.0L tank can be sufficient. Because it ships without pumps, you can tailor the pump choice to your exact needs, which is helpful if you already own a compatible pump or want to upgrade later. The trade-off is less reserve volume and no published multi-pump compatibility list, so you need to verify your pump fits and supports your power goal.
When the 5.5L is the better investment
The 5.5L tank is designed for high flow demands and universal fitment, and its listed compatibility with one to three DW pumps gives you a clear upgrade path. If you are building for high power or plan to add pumps later, the extra capacity helps maintain consistent fuel supply under load. The trade-off is higher cost and a larger footprint, so check available space before committing.
Key trade-offs to weigh
- Capacity vs. space: The 5.5L tank holds nearly twice the fuel volume of the 3.0L, which helps in high-demand situations but requires more mounting space. Measure your available area before deciding. If space is tight, the 3.0L may be the only practical fit.
- Pump flexibility vs. verified compatibility: The 3.0L is sold without pumps, so you must verify your pump works. The 5.5L lists specific DW pump compatibility (1–3 pumps), reducing guesswork for high-power builds. If you already own a pump, check it fits the 3.0L; if you want a proven multi-pump path, the 5.5L is clearer.
- Upfront cost vs. future headroom: The 3.0L costs less initially, but the 5.5L’s larger capacity and multi-pump support may save you from buying twice if your power goals grow. Plan for your eventual power target, not just today’s.
Product facts
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3.0L Surge Tank: 3.0 liter capacity, sold without pumps. You choose the pump, which keeps the initial cost down but requires you to confirm compatibility and flow.
3.0L Surge Tank
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5.5L Surge Tank: 5.5 liter capacity, compatible with 1, 2, or 3 DW200, DW300, DW400, or Brushless DW810 pumps. The larger volume and multi-pump support suit high-power builds and future upgrades.
5.5L Surge Tank
Which tank fits your build?
Best for
- Moderate-power builds with a single pump or modest dual-pump setup
- Installs where mounting space is limited
- Budget-conscious builds where you already have a compatible pump
Not for
- High-power builds planning to run multiple pumps
- Applications needing maximum fuel reserve under sustained load
- Users who want a pre-verified multi-pump compatibility list