ERR4708G - Automatic Drive Belt Tensioner – 300TDi

- €89,70

€89,70

€89,70 - €89,70

€89,70

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

Brand Dayco

Automatic Drive Belt Tensioner for the front-end accessory drive system, maintaining correct tension across the auxiliary belt that drives the alternator, water pump and power steering pump.

The spring-loaded mechanism automatically compensates for belt stretch and load variation during engine operation, removing the need for manual adjustment and protecting the belt and ancillaries from slip. Fitted to the 2.5L 4-cylinder 300TDi turbo diesel engine.

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 — automatic ancillary drive tensioner, 2.5L 300 Tdi
DISCOVERY 1 1989-1998 — 2.5L 300 Tdi (incl. EGR Gem), from VIN MA081992
RANGE ROVER CLASSIC 1992-1994 — 2.5L Tdi, from VIN JA610294

Alternative Codes

ERR4708ERR4708GAPV1004

In stock 3 units

3 · Gouda 0 · 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 ERR4708 drive belt tensioner do?

The ERR4708 automatic drive belt tensioner keeps the auxiliary belt under correct tension on the 2.5L 300TDi engine, driving the alternator, water pump and power steering pump. The spring-loaded mechanism compensates for belt stretch automatically, so no manual adjustment is needed.

What are the signs the tensioner needs replacing?

A failing drive belt tensioner typically shows up as belt squeal, a rattle from the front of the 300TDi engine, or visible belt wobble. The internal spring and bearing wear over time, so worn tensioners usually let the belt slip, affecting charging and power steering. Replace it if the pulley feels rough or loose.

Which 300TDi models does the ERR4708 fit?

The ERR4708 tensioner fits the 2.5L 300TDi engine on the Defender (1987-2006), Discovery 1 from VIN MA081992 and Range Rover Classic from VIN JA610294. It's the automatic ancillary drive tensioner, so confirm your engine is the 300TDi rather than the earlier 200TDi.