NGK Iridium DF8H-11B Spark Plug - Nissan 370Z Z34 (VQ37VHR)
Low stock
Regular price
$55.00
Sale price
$55.00
Regular price
Unit price
per
Tax included.
Shipping calculated at checkout.
Couldn't load pickup availability
- Fully secure checkout
- Trusted
- Rated and reviewed
Question about this product?
We're happy to help.
DF8H-11B · NGK Iridium Spark Plug OEM Specification
NGK Iridium DF8H-11B Spark Plug – Nissan 370Z Z34
VQ37VHR · Set of 6 Required (Sold Individually)
The NGK DF8H-11B is a high-performance iridium spark plug designed for modern Nissan VQ37VHR engines, delivering consistent ignition stability, improved combustion efficiency and long service life under high thermal load conditions.
When diagnosing ignition-related symptoms such as misfires, rough idle or hesitation, spark plugs are a commonly inspected component within the system.
Iridium fine-wire construction helps maintain a consistent spark under heat and load, improving ignition reliability and combustion stability compared to conventional electrode designs.
Symptoms that may be associated with worn spark plugs:
• Rough or unstable idle
• Misfires under load or acceleration
• Poor fuel efficiency
• Hesitation or sluggish response
• Hard starting conditions
Product specifications
| Specification | Detail |
|---|---|
| Part number | DF8H-11B |
| Brand | NGK |
| Type | Iridium spark plug |
| Engine | VQ37VHR |
| Required quantity | 6 plugs per vehicle |
| Sold as | Each |
Why this plug
- Iridium fine-wire electrode for strong and consistent ignition
- Designed for OEM-equivalent performance in VQ37VHR engines
- Improved combustion stability under load
- Long service life compared to standard nickel plugs
Installation
Difficulty
Intermediate
Tools required
Spark plug socket + torque wrench
Fitment
Nissan 370Z Z34 · 3.7L VQ37VHR
Always confirm fitment before ordering. Contact us if unsure.
Recommendation: Spark plugs are typically replaced as a full set of 6 to maintain balanced ignition performance across all cylinders.
