HOT RODS Complete Crankshaft for HONDA TRX 350 2000-2006

On HONDA TRX 350 from 2000 to 2006, the HOT RODS 4409 complete crankshaft fits in place of the original part. The centrepiece of the bottom end, the crankshaft carries the connecting rod and takes every combustion. A tired crank assembly shows up as vibration, noise and, in the end, engine failure.

Specifications

• Brand: HOT RODS
• Manufacturer part number: 4409
• Engine: 4-stroke

When to replace it?

• Play at the big end (vertical movement of the connecting rod at top dead centre).
• Unusual vibration, dull noise from the bottom end.
• Signs of overheating or seizure on the small-end bearing or the crank pin.

During a bottom end rebuild, or as soon as play appears at the big end. A complete crankshaft saves you having the original crank assembly pressed apart and realigned.

Fitting tips

1. Replace the crankshaft bearings and oil seals at the same time.
2. Before closing the crankcases, check the side play and the run-out. Run-out is the deviation you measure with a dial indicator at the end of the shaft while turning the crankshaft: it shows whether the two flywheels are perfectly aligned. The lower it is, the less the engine vibrates.
3. Close up the engine with a new complete engine gasket kit.
4. Check the gearbox bearings while the cases are split.
5. Tighten the flywheel nut and primary gear nut to the torque given by the manufacturer, then fill up with fresh oil.

Why HOT RODS?

Hot Rods has been making off-road bottom-end parts since 1993: crankshafts, connecting rods and bearing kits. Its connecting rods are forged and machined in the USA from case-hardened 8620 nickel-chrome-moly steel, and its crankshafts come assembled and trued to the manufacturer's tolerances.

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• Complete engine gasket kit : see the selection
• Gearbox bearings : see the selection
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50
• Spark plug : see the selection

Frequently asked questions

Are the bearings supplied?
No: you'll need the crankshaft bearing and seal kit, the complete engine gasket kit, the gearbox bearings if required, engine oil and a new spark plug.

What does “run-out” mean?
It's the deviation in the crankshaft's rotation, measured with a dial indicator at the end of the shaft. Very low run-out means the flywheels are perfectly aligned: the engine vibrates less and its bearings last longer. It has nothing to do with full-circle flywheels or balancing, which concern the shape and weight distribution of the flywheels.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HONDA TRX 350 2006
HONDA TRX 350 2005
HONDA TRX 350 2004
HONDA TRX 350 2003
HONDA TRX 350 2002
HONDA TRX 350 2001
HONDA TRX 350 2000