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DA4748 - TDi Rocker Cover Breather by AlliSport Land Rover Range Rover

DA4748 - Rocker Cover Breather – TDi

- €174,10
€174,10
€174,10 - €174,10
€174,10
OEM Part
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 AlliSport
Rocker Cover Breather for the 200 Tdi and 300 Tdi diesel engines. It vents crankcase and valve-cover pressure from the rocker cover into the crankcase ventilation circuit, allowing blow-by gases to escape while retaining oil.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1986-2006 — 200Tdi, 300Tdi
DISCOVERY 1 1989-1998 — 200Tdi, 300Tdi
RANGE ROVER CLASSIC — 200Tdi, 300Tdi
Alternative Codes
DA4748GA4748

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

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 DA4748 rocker cover breather do?
The DA4748 vents crankcase and valve-cover pressure from the rocker cover into the crankcase ventilation circuit on 200 Tdi and 300 Tdi diesel engines. It lets blow-by gases escape while retaining oil, stopping pressure building up under the rocker cover.
Which Land Rovers does the DA4748 breather fit?
The DA4748 fits the 200 Tdi and 300 Tdi diesel engines in the Land Rover Defender (1986-2006), Discovery 1 (1989-1998) and Range Rover Classic. It's specific to the Tdi rocker cover breather setup, so confirm your engine is a 200 or 300 Tdi before ordering.
Why does the Tdi rocker cover breather fail?
Breathers like the DA4748 typically clog with oil sludge and carbon over time, or the housing cracks. A blocked breather raises crankcase pressure, which can push oil past seals and cause leaks. Replacing it restores proper crankcase ventilation on the Tdi engine.