ERR4883 - Tappet Adjusting Screw Engine Part Land Rover Range Rover Defender, Discovery, Range Rover

ERR4883 - Tappet Adjusting Screw – 300TDi

- €10,60

€10,60

€10,60 - €10,60

€10,60

OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

Tappet Adjusting Screw for the 2.5L 300 TDi turbocharged diesel engine, fitted in the rocker arm of the valvetrain.

Threaded into the rocker arm to bear on the valve tappet, it sets the valve clearance and is locked by its locknut once the correct gap is set during valve adjustment.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DEFENDER 1987-2006 — 2.5L 300TDi tappet adjusting screw
DISCOVERY 1 1989-1998 — 2.5L 300TDi
RANGE ROVER CLASSIC 1992-1994 (from JA610294) — 2.5L 300TDi

Alternative Codes

ERR4883

In stock 13 units

1 · Gouda 12 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the ERR4883 tappet adjusting screw do?

The ERR4883 is the tappet adjusting screw in the rocker arm of the 2.5L 300TDi valvetrain. Threaded into the rocker arm, it bears on the valve tappet to set valve clearance and is held by its locknut once adjusted.

How many adjusting screws does a 300TDi need?

One adjusting screw fits each rocker arm, so a full 300TDi set matches the engine's valve count. They're typically only replaced if the tip is worn or the thread is damaged, rather than as routine wear items.

Can I adjust the tappets at home?

Adjusting the tappet screw is done with the rocker cover off, using a feeler gauge and spanner to set clearance, then locking the nut. It's a common DIY job on the 300TDi with basic tools.