915L050 Timing Belt L Section .5 x 91.5in OC Diesel Belting EPDM / Synthetic Rubber The D159 has a 1-1/4"

The D159 has a 1-1/4" width

so a 20/A142 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

com/s/files/1/0666/7721/products/MXL_XL_L_H_Timing_Belt_d1ce74de-0647-450a-9e9a-62313e37c0b5

Megadyne SPA3282 V-Belt

6/AX66 ships from our Houston

915L050 Timing Belt L Section .5 x 91.5in OC Diesel Belting EPDM / Synthetic Rubber The D159 has a 1-1/4"The 915L050 Timing Belt L Section . 5 x 91. 5in OC Diesel Belting is a synchronous timing belt with L pitch profile, manufactured by Diesel Belting. Designed for precise positive drive power transmission with zero slippage in synchronous drive systems. Constructed with Neoprene body compound and fiberglass cord tensile members for reliable power transmission and long service life. Specifications Pitch Profile L Pitch 0. 375 in Tooth Profile