Recall 21V-875: low-pressure fuel pump may fail and stall the engine
Added · Updated
What causes "Recall 21V-875: low-pressure fuel pump may fail and stall the engine" on the Mazda Miata ND (2016-present US model years), and how is it fixed?
NHTSA campaign 21V-875 (Mazda 5321K): the low-pressure fuel pump impeller can crack and stop the pump. Fix: Dealers replace the fuel pump; owner letters went out July 18, 2022.
Symptoms
Rough running, then the engine may stall while driving or fail to start.
Cause
NHTSA campaign 21V-875 (Mazda 5321K): the low-pressure fuel pump impeller can crack and stop the pump.
Fix (summary)
Dealers replace the fuel pump; owner letters went out July 18, 2022. Check by VIN.
Related build entries
Other ND problems
- Recall 19V-072: automatic may downshift unexpectedly (TCM software)
- Recall 19V-496: under-engine skid plate may detach (2016)
- Recall 24V-695: front airbags may deploy with too much force
- Recall 25V-336: TCS/DSC warning light may not come on
- Early ND manual: grinding into 2nd or 3rd, or gears lost (TSB 05-001/17)
- Cold 2nd-to-3rd shift balks (guide claim)
More for this car
- All Mazda Miata ND (2016-present US model years) fitment answers · ND common problems
- Newsletter archive: past issues with every new and corrected entry
Sources
- NHTSA recall 21V-875: low-pressure fuel pump impeller may crack (multi-model incl. 2018-2019 MX-5; 121,038 units) — NHTSA (regulatory; read 2026-10-26; full page read)
Summaries are in our own words. Not repair instructions; consult the factory service manual.
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