Five Hole Four And A Half Inch Bolt Circle Hot Galvanized Idler Hub Kit For A Three Thousand Five Hundred Pound Boat Trailer Compatible With One And One Sixteenth To One And Three Eighths Inch Tapered Axle Inner And Outer Cone Bearings
✔️ Pack of 2 galvanized idler hubs with inner/outer bearings included
This kit is designed for 3,500 lb boat trailer axles and includes two hot-galvanized idler hubs sized for a 4.5 inch bolt circle. It fits tapered axles from 1-1/16 to 1-3/8 inches (27.0 mm to 35.0 mm) and is suitable for replacing worn hubs or upgrading to corrosion-resistant components on marine trailers (4.5 inch bolt circle equals 114.3 mm).
✅ Fits 3,500 lb trailer axles with 1-1/16" to 1-3/8" tapered axles (27.0 mm to 35.0 mm)
✅ Includes 2 hot-galvanized 4.5 inch bolt circle idler hubs
✅ Inner cone bearings sized for L68149 (ID 1-3/8" / 34.93 mm)
✅ Outer cone bearings sized for L44649 (ID 1-1/16" / 26.98 mm)
✅ 2 grease seals, 2 rubber dust plugs, and 10 hub nuts included
✅ 12-month warranty; tested before shipping
💡 What is an idler hub kit used for on a boat trailer and why upgrade?
It provides ready-to-install hubs, bearings, seals, and hardware to restore smooth rotation and braking behavior.
- Sealed bearings and seals help keep dirt out and extend bearing life
- Hot-dip galvanized finish resists saltwater corrosion
- Compatible with 1-1/16 to 1-3/8 inch tapered axles on common boat trailers
- Includes nuts and plugs for a complete, easy installation