DENSO fuel injector 
Side feed type injector
Sumitomo port
Pintle nozzle

Mazda 1.3L Wankel motor

***secondary injectors***
 
DENSO 195500-2450
Mazda N3A2-13-250

other part numbers
Airtex 4G1417
AUS MP-50235
Beck/Arnley 155-0182
BWD 63798
Bostech MP4216
Echlin 2-38798
GB Reman 842-18103
GP Sorensen 800-1406N
SMP FJ399
Wells M680