A Renault 681 deserves parts that really fit. That is why this page gathers more than 70 items matched to this model, so you can choose with confidence.
A Renault 681 has often been on the same farm for decades, and its upkeep usually happens in the farm workshop. This page supports exactly that kind of work with more than 70 parts that fit the 681, from GRANIT, LUK, KS and Bosch/Rexroth among others.
For an engine rebuild you will find pistons with cylinder liners, piston ring sets, connecting rod bearings and bushes, main bearings and a cylinder head gasket set. A radiator hose for the top of the thermostat closes up the cooling circuit again.
Measure the crankshaft journals before ordering bearings. Connecting rod bearings come in standard size and in undersizes for a reground crank, and the back of the old shells usually shows whether the shaft has been ground before. Fit standard shells to an undersize crank and you end up with too much clearance and no oil pressure.
If an implement hangs crooked behind the 681, start with the lift rod and its spindle. Set both lift rods to the same length before hitching up, then fine tune. Stabilizer struts hold the lower links sideways: leave a little play for ploughing, and set them tighter for a drill or rotavator. Check the ball joints at the ends while you are at it, because play there undoes the benefit of a new strut.
Several of these parts are made for the group from the 681 up to the 851, or from the 301 up to the 751, which is shown with each product.
Use the data plate to confirm that the tractor is a 681, then compare the number on the old part with the product details. For a clutch plate, count the splines on the shaft. For a lift rod, check the size of the ball joint.
The 681 shares its range with a number of other Renault models, several of which have their own page:
The Renault 77-12 and 85-34 belong to the same range. For those and everything else from the brand, start at the overview of Renault parts.