part number: 45554 45554 LYCOMING OIL PUMP IDLER SHAFT For 9/16" width impeller Applicability: Lycoming O-145 and GO-145 series engines, see Lycoming parts catalogs for exact engine models MSRP: Now: $4.96 Add to Cart part number: 45554 45554 LYCOMING OIL PUMP IDLER SHAFT MSRP: Now: $4.96 Add to Cart Compare Selected