
Aeromotive Pulley, HTD, 5M, 1-inch Bore, 28/32/36/40 Tooth - 28 tooth - 50%
Fuel Pump Pulley - HTD - 28 Tooth - 5 mm Pitch - 15 mm Wide - 1/8 in Keyed - Aluminum - Black Anodized - Each
Secure Checkout
SSL Encrypted
Easy Returns
30-day policy
Guaranteed Fitment
Or your money back
Pay Over Time
With Affirm
Designed for 5M pitch, 15mm wide HTD drive belt Drive pulley featuring 1/8” keyed 1” bore for any 1” drive mandrel including Aeromotive P/N 21119 and 21120 Drive Mandrels. Rated Mechanical Pump flow is at 4,000 Pump RPM. Maximum pump speed should not exceed 5000 RPM. A safe target pump speed is 4,500 RPM.
To calculate:
Pump RPM = Engine RPM x the following %. 28 tooth
– 50% with 56 tooth driven pulley P/N 21112 32 tooth
– 57% with 56 tooth driven pulley P/N 21113 36 tooth
– 64% with 56 tooth driven pulley P/N 21114 40 tooth
– 71% with 56 tooth driven pulley P/N 21115 This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.






