DW400 Install Kit for NA Miata: What's Included
By DeatschWerks | Published: 2026-10-22
Category: Buying Guides
Discover what the DeatschWerks DW400 Install Kit for NA Miata includes, why it simplifies your fuel pump upgrade, and how to decide if it's right for your 1989-1993 MX-5.
Quick answer
The DeatschWerks DW400 Install Kit for NA Miata bundles everything needed to mount the DW400 fuel pump in a 1989-1993 MX-5, saving you the hassle of sourcing separate parts. If you're installing a DW400 in an NA chassis, this kit is the straightforward choice.
Why a dedicated install kit beats sourcing parts separately
Upgrading a fuel pump often turns into a scavenger hunt for the right hoses, clamps, and brackets. A complete kit removes that guesswork by matching components to the DW400 pump and the NA Miata's fuel hanger. This reduces the chance of buying incompatible parts and shortens the time spent on the install.
The kit is specifically designed for the 1989-1993 NA chassis, so you don't have to modify generic parts to fit. That's a real advantage if you're not comfortable fabricating brackets or adapting fittings.
What to consider before buying
Before you order, confirm your Miata's model year. The kit fits 1989-1993 NA models, so if you have a later NA8 or an NB, this kit won't be the right fit. Also, check that you already have the DW400 pump itself—this kit is designed for the DW400, not other pump models.
If you're planning a high-horsepower build that requires a different pump, this kit won't apply. But for a standard DW400 upgrade, it covers the essentials.
Decision rules for the DW400 Install Kit
- Model year check: Confirm your Miata is a 1989-1993 NA chassis. The kit is designed specifically for this range; other years may require different parts. Verify your VIN or registration before ordering.
- Pump compatibility: This kit is designed for the DW400 fuel pump. If you're using a different pump model, the components may not align, so confirm your pump before purchasing.
- Complete kit vs. individual parts: If you already have some installation hardware (hoses, clamps, brackets) that you know fits, you might save money by buying only what's missing. But if you want a guaranteed match, the complete kit is the safer route. Compare the kit price against the cost of sourcing parts individually to decide.
Product facts
- DW400 Install kit for NA Miata: The DeatschWerks DW400 Install Kit for NA Miata is a complete installation kit designed to fit 1989-1993 Mazda Miata/MX-5 vehicles. This means you get a matched set of components that are known to work with the DW400 pump in your NA chassis, reducing installation headaches.
DW400 Install kit for NA Miata
Who should buy this kit
Best for
- Owners of 1989-1993 NA Miatas upgrading to a DW400 fuel pump
- DIYers who want a hassle-free installation without hunting for separate parts
Not for
- Owners of later NA8 or NB Miatas, as the kit is specifically for the 1989-1993 NA chassis
- Builds using a fuel pump other than the DW400
