1997–2003 Jaguar XJ8 X308 4.0L Spark Plugs

We only publish a specific spark plug when the fit is confirmed. We don't have verified fitment for the 1997–2003 Jaguar XJ8 X308 4.0L yet — shop fit-matched plugs at the retailers below and confirm against your owner's manual.

Frequently asked questions

What spark plug does a 1997–2003 Jaguar XJ8 X308 4.0L use?
We don't yet have a confirmed plug for this exact application, so we won't guess. Check your owner's manual or the underhood emissions label, or shop by vehicle at the retailers on this page.

Where can I buy spark plugs for a 1997–2003 Jaguar XJ8 X308 4.0L?
Use the Amazon, eBay and Advance Auto Parts buttons on this page — each searches parts matched to your vehicle.

Affiliate disclosure: As an Amazon Associate and affiliate partner we earn from qualifying purchases. Always confirm fitment against your owner's manual or the manufacturer catalog before buying.