530071585 Gear Box Poulan OEM Genuine Part NOS.  Also fits some Husqvarna, Redmax, and Jonsered models.

This part is new old stock & has signs of being on the shelf a while.

4000C W/E Brushcutter Attachment Type 1, Weed N' Cut 4000C Type 1, W/E Brush-Cutter Attachment 4000C Type 1
4000C W/E Brushcutter Attachment Type 2, W/E Brush-Cutter Attachment 4000C Type 2, Weed N' Cut 4000C Type 2
4000C W/E Brushcutter Attachment Type 3, Weed N' Cut 4000C Type 3, W/E Brush-Cutter Attachment 4000C Type 3
BC2400 Gas Trimmer Type 6
BC2500LE Gas Trimmer Type 1
BC2500LE Gas Trimmer Type 2
BC2500LE Gas Trimmer Type 3
BC2500LE Gas Trimmer Type 4
PP331 Gas Trimmer, 331 Gas Trimmer
PP4000C Brushcutter Attachment Type 1, Brush-Cutter Attachment PP4000C Type 1
PP4000C Brushcutter Attachment Type 1, Brush-Cutter Attachment PP4000C Type 1
PP4000C Brushcutter Attachment Type 2, Brush-Cutter Attachment PP4000C Type 2
PP4000C Brushcutter Attachment Type 2, Brush-Cutter Attachment PP4000C Type 2
PP4000C Brushcutter Attachment Type 3, Brush-Cutter Attachment PP4000C Type 3
PP4000C Brushcutter Attachment Type 3, Brush-Cutter Attachment PP4000C Type 3
PPB4000C Gas Brushcutter Attachment Type 1, Poulan Pro Brushcutter Attachment PPB4000C Type 1
PPB4000C Gas Brushcutter Attachment Type 1, Poulan Pro Brushcutter Attachment PPB4000C Type 1
PPB4000C Gas Brushcutter Attachment Type 2, Poulan Pro Brushcutter Attachment PPB4000C Type 2
PPB4000C Gas Brushcutter Attachment Type 2, Poulan Pro Brushcutter Attachment PPB4000C Type 2
PPB4000C Gas Brushcutter Attachment Type 3, Poulan Pro Brushcutter Attachment PPB4000C Type 3
PPB4000C Gas Brushcutter Attachment Type 3, Poulan Pro Brushcutter Attachment PPB4000C Type 3
S31BC Snapper Gas Trimmer, Snapper S31BC Gas Trimmer
S31SNGBC Snapper Gas Trimmer, Snapper S31SNGBC Gas Trimmer
SNC31 Snapper Brushcutter Attachment, Snapper SNC31 Brushcutter Attachment
SNC31 Snapper Brushcutter Attachment, Snapper SNC31 Brushcutter Attachment
U4000C UNIVERSAL Brush-Cutter Attachment Type 1
U4000C UNIVERSAL Brush-Cutter Attachment Type 1
U4000C UNIVERSAL Brush-Cutter Attachment Type 2
U4000C UNIVERSAL Brush-Cutter Attachment Type 2
U4000C UNIVERSAL Brush-Cutter Attachment Type 3
U4000C UNIVERSAL Brush-Cutter Attachment Type 3