Filler Cap / Husqvarna 501 62 66-02Pack Size:1Husqvarna 501 62 66-02, Husqvarna 501 62 66-01Ahlborn F14695, HL Supply H17061Husqvarna 133, 234, 238, 242, 246, 266, 268, 272, 42, 61, 66 chainsawsEthanol: Not compatible with greater than 10% ethanol fuel