NEW Overdrive Single V Groove  Pulley

Delco 10DN ER/EF; 10SI, 12SI, 15SI, 27SI/Type 100 Series IR/EF; Ford 1G Series ER/EF, 2G Series IR/EF Alternators

10mm Belt x 67mm OD x 17mm Bore

Machined pulley cut from cold rolled steel

Smaller diameter than stock for some apps, to increase output at idle.

Some apps might require a different length belt