The Job: Ground-Down PTO Teeth on a John Deere M620
When you start losing teeth, the tooth fairy swaps them out… In this case the teeth belonged to the inner and outer PTO shafts of a John Deere 6820.
We got a call from a Levin Contractor saying that the shafts had seen far better days. The teeth had been grinding against each other over time and with significant load from the rear implements – this is accelerated, finally resulting in a completely worn through PTO shaft. These can’t be repaired so it was a replacement job, and it needed to happen fast.
With a tractor sitting idle, every hour is vital!
The Fix: Parts On the Shelf, Out the Door Overnight
We had quality aftermarket options for both the inner and outer PTO shafts ready to go, no waiting on stock, no sourcing delays.
Alongside the shafts, we also supplied a rockershaft position sensor and a Cat 3 hook repair kit to round out the job.
Everything went out the door and was delivered overnight, keeping the tractor’s downtime to an absolute minimum. The right parts, fast – that’s what our dedicated parts team strive for every day.
The parts supplied were:
L173282 – PTO Shaft 6/21 Spline
ProPart Insights: Why PTO Shaft Teeth Wear Out
This problem can start with sudden jolts or shock, that could cause a tooth to chip, and once that happens, there’s more movement between the inner and outer shafts than there should be. That extra play accelerates wear on the neighbouring teeth, and it becomes a compounding problem: more chipped teeth, more movement, more damage.
A tell-tale sign it’s happening is when the driver experiences loss of drive to the rear when the two splines disconnect. At that point, the shafts are simply spinning aimlessly instead of transferring drive – a clear signal something’s worn through.
Preventative maintenance. regular oil changes in particular, is money well spent here. Clean, well-lubricated components are far more resilient to the small shocks and jolts that start this whole chain reaction.Â
The Call to Action: Need a Shaft Fast? We Can Help
We stock a large range of shafts to suit many different tractor models. Check online or email our team to see what we’ve got ready to go for your machine, because when a tractor’s down, every hour counts.
Tough jobs need tougher parts. Ask us for a quote on any tractor parts today!
We guarantee to put the right parts in your hands, and aim to make it easy for you in the process.
Trusted by tractors. Parts made easy.

