Rotary 7311.

Replaces
AUTOLITE: 4265
BOSCH: WR8DS
CHAMPION: N11YC
MTD: 951-10292
NGK: BP5ES
NIPPONDENSO: W16EX-U
TORCH: F5TC

Fits Models
HUSKEE: 13W2775S031, 4P90JUB
TROY BILT: 170-AU, 21A-34M8711, 21D-64M8711, 21D-65M8711
YARDMAN: SV600-3225, 11A-A12N701, 11A-B22N701, 12A-B22N701, 12AKD32N701, 13AX935T001, 5P71MU