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EAC7478-G - Guide Valve by AE Land Rover Range Rover

EAC7478-G - Valve Guide – Exhaust

- €4,20
€4,20
€4,20 - €4,20
€4,20
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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 AE
Exhaust Valve Guide for the cylinder head of the 4.2-litre XK six-cylinder engine.

Pressed into the cylinder head, the guide supports the exhaust valve stem and keeps the valve concentric with its seat as it opens and closes, while conducting heat away from the stem into the head. Worn guides let the valve rock, leading to poor seating and increased oil consumption, and are normally renewed during a cylinder head overhaul.
Fitment Notes JAGUAR/DAIMLER XK ENGINE 4.2 Litre — exhaust valve guide. Incl. Daimler Limousine (DS420) 1968-1992
Alternative Codes
EAC7478-GEAC7478

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 is the Exhaust Valve Guide for the 4.2 XK used for?
The exhaust valve guide is pressed into the cylinder head to support the exhaust valve stem, keeping the valve concentric with its seat as it opens and closes, on the 4.2-litre Jaguar XK six-cylinder engine. It also conducts heat from the valve stem into the head. Made by AE.
When should exhaust valve guides be replaced?
Exhaust valve guides are renewed during a cylinder head overhaul when they wear. Worn guides on the 4.2 XK engine let the valve rock, causing poor seating, increased oil consumption and blue smoke as oil drains past the stem. They're normally replaced as a set across the head.
Which engine does this valve guide fit?
This exhaust valve guide fits the 4.2-litre Jaguar XK six-cylinder engine, including the Daimler Limousine (DS420) 1968-1992. Confirm your head is the 4.2 XK unit and check whether it needs a standard or oversize guide, depending on how the guide bores have been machined.