Crankshaft Dampener For John Deere 4000 4010 4020 – Replaces AR58172 R34364

Working on a John Deere tractor—maybe a 4000, 4010, or 4020 diesel?

This crankshaft dampener is exactly what you need if that front pulley is wobbling or worn out.

It's a new aftermarket part, replaces OEM numbers like AR58172, R34364, AR26381, AR50392, and AR58181.

Fits the diesel versions of those models.

No brand name, but solid construction.

Keeps the crank harmonics in check and keeps your engine running smooth.

UPC 197118054824.

Old iron deserves good parts.