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G35 Spark plugs

Why do it

Tools you'll need

• 5/8 in spark plug socket
• Extensions
• Socket set
• Torque wrench
• 5/8 in spark plug socket
• Extensions
• Socket set
• Torque wrench
• 5/8 in spark plug socket
• Extensions
• Socket set
• Torque wrench

Starting out? See our budget tool list.

Parts to buy

• OEM NGK PLFR5A-11 plug for the VQ35DE (coupe) The factory plug. You need 6.Fits 2003–2007 · coupe only
• OEM NGK PLFR5A-11 plug for the VQ35DE (sedan) The factory plug. You need 6.Fits 2003–2006 · sedan only
• OEM VQ35HR spark plug The factory plug. You need 6.Fits 2007–2008 · sedan only

Double-check fitment before buying. We may earn a commission when you buy through these links, at no extra cost to you.

Steps

1. Get ready

   • Take off the battery negative and clear what's above the coils.
   ▶ Watch this step (on a 350Z / G35) (0:00–4:33)

2. Do the driver side

   • Pull each coil, swap the plug and refit the coil.
   ▶ Watch this step (4:33–11:28)

3. Do the passenger side

   • Do the same on this side.
   ▶ Watch this step (11:28–13:50)

4. Finish up

   • Put it all back and start the car.
   ▶ Watch this step (13:50–16:14)

5. Get ready

   • Take off the battery negative and clear what's above the coils.
   ▶ Watch this step (on a 350Z / G35) (0:00–4:33)

6. Do the driver side

   • Pull each coil, swap the plug and refit the coil.
   ▶ Watch this step (4:33–11:28)

7. Do the passenger side

   • Do the same on this side.
   ▶ Watch this step (11:28–13:50)

8. Finish up

   • Put it all back and start the car.
   ▶ Watch this step (13:50–16:14)

9. Remove the throttle body

   • Undo the intake tube and throttle body.
   ▶ Watch this step (on a 2008 G35) (1:04–3:38)

10. Do the driver side

    • Pull each coil and swap the plugs.
    ▶ Watch this step (3:38–13:45)

11. Take off the passenger side parts

    • Clear the passenger side.
    ▶ Watch this step (13:45–17:34)

12. Do the passenger side

    • Swap the plugs on this side.
    ▶ Watch this step (17:34–20:26)

13. Put it back

    • Reassemble and start the car.
    ▶ Watch this step (20:26–24:20)

How to know it worked

• The engine starts and idles smoothly.
• No warning lights.
• The engine starts and idles smoothly.
• No warning lights.
• The engine starts and idles smoothly.
• No warning lights.

Follow your part's instructions and your service manual's torque specs.