Lighting is one of the groups you will come across among the more than 60 parts listed for the Renault 65-12, a tractor from the R series.
Nobody scraps a Renault 65-12, they rebuild it. When oil consumption creeps up or the engine is slow to fire, the head comes off and the pistons come out. This page lists more than 60 parts that fit the Renault 65-12, with a good share for exactly that engine work and the rest for cooling, linkage and cab.
For the bottom end there are connecting rod bearings, connecting rod bushes and main bearings. Higher up you will find complete piston and liner sets, separate piston ring sets, injection nozzles and gaskets.
Measure the crankshaft journals before ordering any bearings. If the crank has been ground before, you need an undersize bearing rather than standard. During assembly, coat every bearing and piston with clean engine oil so nothing runs dry on the first start, and turn the engine over on the starter with the stop pulled until oil pressure shows.
Black smoke or a hard knock is a sign to have the injection nozzles tested for opening pressure and spray pattern. A nozzle that dribbles burns the fuel poorly and washes the oil film off the cylinder wall. On a rebuild it pays to replace them all together so every cylinder does the same work.
If the engine will not stop when you pull the stop control, check the cable first. A cable that is stiff or has stretched inside its sleeve no longer pulls the pump fully into the stop position.
The parts come from GRANIT, KS, Bosch/Rexroth, Cobo and Perkins.
The type plate confirms if you have a 65-12. The tractor belongs to the Renault R series, but even there you choose model by model. Pistons, bearings and nozzles often carry a stamped number or a size marking, and that reference number is what you compare with the product details.
If there are more old Renaults in the shed, each type has its own page: Renault 75-32, Renault 75-12, Renault 65-32, Renault 70-12, Renault 68-12 and Renault 681. The 85-34 and 77-12 belong to the same series. All Renault tractors are on Renault parts.
