More than 120 parts for the John Deere 8370R are collected here. The selection for the 8R and 8RT series includes lighting, electrics and trailer couplings.
On a John Deere 8370R, the engine, driveline and lighting are largely controlled electronically. When a fault code appears on the display, the cause is therefore often a sensor, a relay or a connector rather than a mechanical part. This page brings together more than 120 John Deere 8370R parts from GRANIT, Sauermann, HELLA, Walterscheid and Denso.
For the engine there are oil pressure sensors, an oil pressure switch, a temperature sensor for the inlet manifold and a rail pressure sensor for the common rail system. Further down the exhaust sits a NOX sensor. You will also find changeover relays, micro relays and contact switches.
Before replacing an expensive sensor, check the wiring first. Unplug the connector, look for green corrosion or moisture on the pins and follow the harness for chafe marks where it runs along the chassis. A suspect relay is easy to test by swapping it with an identical one from a circuit that works. Should the problem follow the swapped relay to its new slot, that relay is the culprit.
The page includes a gear reduction starter and an aircon compressor. When a compressor seizes, debris or metal usually ends up in the system. Have it flushed and fit a new receiver dryer when you replace the compressor, or the new one will go the same way.
For long days in the field there are LED work lights in flood beam and oval spotlight versions. A telescopic mirror arm gives you a view past wide implements. On the trailer side you will find air brake connector heads and a trailer control valve.
Use the reference number on the old part, or the details on the tractor's type plate, to pick the correct version.
LED work lights have no filament to break from vibration, which shows on a large tractor working rough ground. When replacing one, choose between a flood beam that lights up the area around the machine and a spotlight that reaches further ahead. A mix of both gives the calmest view when turning on the headland at night.
The 8370R belongs to the John Deere 8R and 8RT family. If you also run another model from that family, it has its own page:
The 8260R and the 8285R are part of this family as well. For other tractors from this maker, browse John Deere parts.
