4438257 | Exhaust Valve - Cologne 4.0 EFI SOHC | Discovery 4 (2010-2016)
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: 4438257 - Exhaust Valve
4438257 is an exhaust valve for the Cologne V6 4.0 EFI SOHC. Fitted in the cylinder head of the Discovery 4 (2010-2016), it controls the release of combustion gases into the exhaust manifold; correct seating, timing and sealing of the valve are critical for combustion efficiency, exhaust flow and emissions on this engine.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 4 (2010-2016) - Cologne V6 4.0 EFI SOHC (From VIN AA000001)
Frequently Asked Questions
The exhaust valve releases combustion gases from the cylinder into the exhaust manifold at the end of the power stroke. Proper seating, timing and sealing of the valve affect combustion efficiency, exhaust flow and emissions on the Cologne V6 4.0 EFI SOHC, so valve condition should be checked during cylinder head servicing.
| Model | Variant |
|---|---|
| Land Rover Discovery 4 (2010-2016) | Cologne V6 4.0 EFI SOHC (From VIN AA000001) |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
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