Specifically for the Fendt 313 Vario with Typ 353, this page lists more than 60 parts for this version, such as cab and accessories, lighting and electrics.
A tractor on the road has to be seen and has to stop. More than 60 parts on this page are linked to the Fendt 313 Vario with Typ 353 on its type plate, and many of them deal with exactly those two jobs. If your plate shows a different Typ number, the Typ 340 and Typ 350 pages list what fits those versions, and the Fendt 313 Vario overview covers them all.
Up front there are headlights and indicators, including versions with a clear lens. At the back you get LED tail and brake lights, and along the sides marker lights, LED indicators and round reflectors. Much of the lighting is made by HELLA. When a lamp starts to mist up on the inside, replace it before it fails. Moisture in the housing attacks the contacts, and by the time the bulb goes out the plug is often corroded as well.
For the brakes there is a master brake cylinder, plus Wabco connector heads for the supply line to the trailer. After fitting a new master cylinder the system must be bled. Follow the workshop manual and make sure the pedal stays firm before you take a loaded trailer onto the road. Alongside that you will find universal joints for the propshaft, a gear reduction starter from FEBI and an overflow valve. Seals for the pressure pipe keep a small weep from turning into a puddle under the tractor.
Rubber floor coverings and floor mats fit the cab, among them a grey mat with an opening for the engine brake. A lockable fuel filler cap is worth having when the tractor is left at the edge of a field overnight.
The Typ number is stamped on the type plate, so give it a wipe and check before ordering. Still unsure? Take the old part out and look for a reference number. Lamps, coupling heads and starters nearly always carry one, cast into the housing or printed on a label, and it lets you match the item without guessing.
The other tractors in the Fendt 300 range each have their own page, which helps when there is more than one Fendt in the yard:
Every other model from the brand sits under Fendt parts.