Fuel pump and filter (NA, NB, NC)
Fuel pumps on the Miata can quit with little warning, and owners often suspect the pump when the cause is a ground or a filter. This page lists who sells the pump, filter and injectors and what an owner thread said. It is not a repair guide.
How to read it. Seller claims are as read on each seller's own page on 2 October 2026. Owner accounts are from Miata.net forum threads, dated below, and are individual opinions, not advice. There are no prices on this page, and nothing here was bought or tested.
| Seller | What it says it offers | Fits (as stated) |
|---|---|---|
| Moss Miata, replacement fuel pump | listed simply as "Replacement Fuel Pump"; its related-parts list pairs it with an in-tank fuel filter sock, a fuel filter and a fuel tank sending unit | 1990-2015 NA, NB and NC |
| Moss Miata, fuel filter by Mazda | the Mazda factory filter, OE reference BP4W-13-480 | 1999-2005 NB |
| Flyin' Miata, NA aftermarket fuel filter | a quality aftermarket filter; it gives a recommended replacement interval of 30,000 miles or 50,000 km and says the mounting bracket is not included, so you reuse your stock bracket | 1990-1997 NA |
Moss's search results also show an electric fuel pump by Mazda, an aftermarket fuel filter for the NA (971-135), a filter for the NB (916-634) and individual injectors for the 1990-1993, 1994-1997 and 2001-2005 cars; I did not open those pages. I found no ND fuel pump listing, and the ND has a recall on the fuel pump for 2018-2019 cars, which is in the app's known issues.
What an owner thread said
- A 1994 with 120,000 miles (July 2014). An owner of a mostly stock car described slow starting only when cold, even though it cranked normally, and several times the car "fell on its face" pulling away from a stop into second gear while turning. He wondered whether the fuel pump was failing, noting he could not remember whether the pump or filter had ever been changed. One reply said a failing pump would show as demand rises, so it was probably not the pump, and suggested cleaning and securing all the grounds first. (Miata.net thread; first page.)
Search results for other Miata.net threads say pumps can quit without warning, that low-tank hesitation on corners can mean fuel starvation, that a quick check is listening for the pump's hum at the gas cap, and that owners suggest a Denso pump kit, whose in-tank sock can clog. I did not read those threads, so treat them as leads.
Not covered yet
- NC and ND fuel filters (the NC filter is in-tank and not listed separately here), injectors in detail, and fuel pressure regulators.
- Owner accounts for the NC and ND.
© 2026 Fischer Interactive LLC. Written for the Ref Sensor app's Miata users. The seller's page is the authority.