Idler Gear Shafts

1 products

Our Idler Gear Shafts for Harley-Davidson supply the shafts that locate the idler gear within the cam chest of 1936 to 1969 Big Twin Harley-Davidson engines, covering Knucklehead, Panhead and Shovelhead rebuilds. Sourced through Iron City Motorcycles, an Iron City authorised HD dealer in Leeds, the range uses MCS as the primary supplier, a trusted source of vintage American V-twin replacement parts. A worn idler shaft can quickly wreck gear teeth and oil flow, so fitting a correct replacement during a top-end or cam chest rebuild is essential. Whether you are piecing together a long-term restoration, refreshing a running rider-class classic, or sourcing spares for a future project, every shaft here is selected for correct fit on genuine Harley-Davidson Big Twin engines. Browse the full range below.