AT5-390-32 Timing Belt AT5 32mm x 390mm OC Diesel Belting Idler 350L3 is a micro-v belt

350L3 is a micro-v belt used on serpentine and multi-rib accessory drives — HVAC blowers

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so a 2/3V1120 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

"text": "340J14 has 14 ribs

AT5-390-32 Timing Belt AT5 32mm x 390mm OC Diesel Belting Idler 350L3 is a micro-v beltThe AT5 390 32 Timing Belt AT5 32mm x 390mm OC Diesel Belting is a synchronous timing belt with AT5 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 AT5 Pitch 5 mm Tooth Profile Trapezoidal