Not sure if a part fits your New Holland T7550? This page only shows parts for this model: more than 200, such as trailer couplings, electrics and lighting.
A T7550 earns its keep pulling heavy trailers, slurry tankers and bale carts, and that work shows up first at the back of the tractor. The hitch pin develops play, the latch gets stiff and eventually the automatic jaw stops closing cleanly. This page brings together more than 200 new replacement parts that fit the New Holland T7550, from makers such as GRANIT, Scharmüller, ROCKINGER, HELLA and Carraro. Everything here is matched to this one model, so you are not wading through parts meant for other tractors.
For the rear hitch there are automatic drawbars, Piton Fix units for the rail system, top drawbars and height adjustable adapter plates. That means you can replace a worn jaw without renewing the entire rail, or switch to a Piton Fix if you regularly run implements with a rigid drawbar eye.
Before ordering, get the tape measure out. Check the rail width and the locking pin diameter on your own tractor and compare the hole pattern of the adapter plate with the mounting on the rear frame. A plate that does not line up leaves the hitch crooked or at the wrong height, and you only find out once a trailer is hooked on. Retighten the bolts after the first few days of work.
The T7550 cab has a row of rocker switches in the dashboard, including the one for the front work lights. There are also push button switches, such as the one that lowers the front linkage, and relays for the individual circuits. When a function quits, check the relay and the plug before blaming the switch. A corroded contact often causes exactly the same symptoms and takes a few minutes to clean.
Lighting covers work lamps with a flood beam, and alternators keep the charging side going. For long days in the field you will find air suspended tractor seats with fabric covers, plus gas struts for windows and hatches that no longer stay open on their own.
On the engine side you will find O-rings for the oil filler cap, water pump gaskets and other seals. Up front, the steering ball joints wear too, and replacements are here as well. When you swap a ball joint, renew the dust boot and the locking hardware too, so dirt cannot get at the ball.
To be sure a part fits, read the data plate on your tractor and compare the reference number stamped on the old part with the details on the product. The T7550 belongs to the T7500 range alongside the New Holland T7540, which has its own page and its own selection. For every other tractor from this maker, head to the New Holland parts overview and pick your model from there.