NGK SPARK PLUG KR8AI 5477
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
NGK SPARK PLUG KR8AI 5477. Features laser-welded iridium center electrode tip. Platinum disc welded to the backside of the ground electrode for extended life. Trivalent metal plating for superior anti-corrosion and anti-seizing. Provides faster starts and quicker acceleration. Improves fuel economy and reduces emissions. Best OEM Iridium spark plug available. Original Equipment Manufacturer approved design. Sold individually. Heat Range: 8. Thread Size: 12 mm. Type: Resistor. Units Sold: Each. Weight: 0.12 lbs. Alternate/OEM Part Numbers: 21030009, 5477. Part No.: 37-KR8AI. NGK KR8AI Iridium IX Spark Plug.
- SKU
- 37-KR8AI
- Brand
- NGK
- Availability
- In Stock (5)
- General Product Group
- Ignition & Electrical Parts
- General Product Type
- Spark Plug
- Variant Id
- 235622
FULL DESCRIPTION
NGK Lazer Iridium Spark Plug KR8AI
Experience enhanced performance and longevity with the NGK KR8AI Lazer Iridium Spark Plug. This high-quality spark plug is designed for optimal combustion, leading to faster starts, quicker acceleration, and improved fuel efficiency.
Key Features:
- Iridium Center Electrode: Features a laser-welded Iridium center electrode tip for superior durability and ignitability.
- Platinum Ground Electrode: A platinum disc is welded to the backside of the ground electrode, significantly extending the plug's lifespan.
- Trivalent Metal Plating: Provides exceptional anti-corrosion and anti-seizing properties, ensuring reliable performance in various conditions.
- Performance Enhancement: Engineered to deliver faster engine starts and quicker acceleration.
- Environmental Benefits: Contributes to improved fuel economy and reduced emissions.
- OEM Approved: This spark plug is an Original Equipment Manufacturer approved design, guaranteeing a perfect fit and function.
- Sold Individually: Each spark plug is sold separately.
Specifications:
- Heat Range: 8
- Thread Size: 12 mm
- Type: Resistor
- Weight: 0.12 lbs
- Alternate/OEM Part Numbers: 21030009, 5477
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Call or email us with your make, model and year and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.