Image 1 of 1 Solid Hub Coupling - Flange 4" | Bore 1.375" | M-Pilot Dia 2.5" | 4 Bolt - .375 $132.62 Solid Hub Coupling - Flange 4" | Bore 1.375" | M-Pilot Dia 2.5" | 4 Bolt - .375 Add To Cart Added! Solid Hub Coupling - Flange 4" | Bore 1.375" | M-Pilot Dia 2.5" | 4 Bolt - .375 You Might Also Like Quick View Solid Hub Coupling - Flange 4.75" | Bore 1.375" | F-Pilot Dia 2.5" | 6 Bolt - $277.86 Quick View Solid Hub Coupling - Flange 5" | Bore 1.125" $202.47 Quick View Solid Hub Coupling - Flange 4" | Bore 1.0" $132.62 Quick View Solid Hub Coupling - Flange 4" | Bore 1.125" $138.59 Quick View Solid Hub Coupling - Flange 5.75" | Bore 1.50" | F-Pilot Dia 3.0" | 6 Bolt $418.77