Brewer 18L1-F Timing/HTD Idler Pulley - Timing Pulley Multi-Speed V-Belt The D&D Global 13/A61 is

The D&D Global 13/A61 is a standard V-belt featuring Classical A-section dimensions

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The Megadyne 11/B136 is a banded (11-rib) B V-belt with a 138

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Brewer 18L1-F Timing/HTD Idler Pulley - Timing Pulley Multi-Speed V-Belt The D&D Global 13/A61 isBrewer 18L1 F timing pulley from the Brewer Timing & HTD Idler Pulleys catalog. Manufactured in St. Louis, MO. Sold by Texas Belting & Supply, an authorized Brewer distributor. Authorized Brewer distributor Same day shipping from Houston Need application help or want to verify compatibility? Call 888 203 2358 you'll talk to a real person who knows tensioners. Specifications Pitch 3 8" No. Grooves 18 Dimension A 2. 121 Dimension B 1 1 16" Dimension C