Set of 6 NGK Ruthenium HX spark plugs, part number LKAR8BHX (NGK #91784). New in original packaging, manufactured in Japan. Performance multi-electrode design with 12mm thread diameter and standard installation depth. Supersedes LTR6BHX. OE cross-references: 90495, LTR6BHX. 1-year manufacturer warranty. Sold as a set of 6 for 6-cylinder applications. Listed for Nissan GT-R R35 3.8L VR38DETT race use. Also fits Nissan Z (RZ34) 3.0L twin-turbo V6, Lexus GX550 3.4L V6, and Ford Ranger Raptor 3.0L V6. Please verify fitment using the compatibility chart before ordering.
Welcome to our store
SUBSCRIBE TO THE NEWSLETTER
Menu
- Store Home
- New Arrivals
- Ending soon
- response
- Contact us
6 - NGK Ruthenium HX High Performance Spark Plugs
Please refer to the compatibility table above to ensure correct fitment Express delivery
Delivery and Tracking
30 day money back guarantee
30 Days Money Back Return Policy
payment methods
All cards Accepted, Paypal, Visa, Mastercard, Amex
100% safe shopping on
Safety & Secure Purchase on
Save Seller Visit My Store Product Description
NGK Ruthenium HX Spark Plugs – LTR6BHX | Stock No. 90495
Maximize your engine's potential with NGK Ruthenium HX Spark Plugs – designed specifically for newer engines that demand high ignitability. Featuring NGK's patented Projected Square Platinum Electrode (PSPE) design, these plugs promote spark energy concentration and ignite a wider range of air-fuel ratios, offering improved performance in both rich and lean engine conditions.Key Features:
* Projected Square Platinum Electrode (PSPE) Design – Promotes spark energy concentration for superior ignitability across a wider range of air-fuel ratios.
* 0.4mm Ruthenium Alloy Fine Wire Center Electrode – Delivers maximum performance, ignitability, and durability at high temperatures.
* 0.8mm Platinum Fine Wire Ground Electrode – Provides long-lasting wear resistance and consistent spark performance.
* Trivalent Metal Platinum Plating – Superior anti-corrosion and anti-seizing properties for easy installation and removal.
* Corrugated Ribs – Prevent flashover for reliable ignition.
* Pure Alumina Silicate Ceramic Insulator – Provides superior strength and better heat transfer.
* Copper Core – Aids in efficient heat removal.Product Specifications:
* Part Number: LTR6BHX | Stock No. 90495
* Thread Diameter: 14mm
* Thread Pitch: 1.25mm
* Seat Type: Tapered
* Reach: 25mm (1")
* Hex Size: 5/8" (16mm)
* Terminal Type: Solid
* Gap: .031" (0.8mm)Torque Specs:
* Cast Iron: 10.8–18 lb. ft.
* Aluminum: 7.2–14.5 lb. ft.Whether you're pushing hard on the track or maximizing everyday fuel efficiency, NGK Ruthenium HX spark plugs are built to optimize engine power, improve fuel economy, and reduce emissions. Trust NGK – the world leader in spark plug technology.
Shop Categories Browse all categories Clutch Hydraulics Drive Belts Filters Ignition Kit Lift Supports Spark Plugs Contact us
24 hour customer support
Worldwide Delivery
With reliable carriers
Sign Up To our newsletter
Subscribe to receive special offers, free giveaways and one-time offers.
Subscribe Now Payment
Payments via Only
will automatically charge the appropriate State Sales Tax based on your purchase location.
Shipping
Shipping Policy
We offer FREE shipping on all orders within the United States.
Orders are processed within 1-2 business days and shipped via USPS for fast and reliable delivery.
Tracking information will be provided once your order has shipped.
We offer international shipping via USPS. International shipping rates and delivery times vary by destination. Buyers are responsible for any customs fees or import duties.
Returns
Return Policy
We accept returns within 30 days of purchase.
Items must be returned in their original condition, including all packaging and accessories.
Buyers are responsible for return shipping costs unless the item is defective or incorrect.
Once the return is received and inspected, a full refund will be issued to the original payment method.
Warranty
Warranty Policy
All items come with a 1-year warranty from the date of purchase.
Our warranty covers manufacturer defects and functional issues under normal use.
The warranty does not cover damage due to misuse, accidental damage, or unauthorized repairs.
If you experience any issues with your item, please contact us with your order details for assistance.
For any questions or concerns, feel free to message us through – we're happy to help!
Useful Links
- Store Home
- New Arrivals
- Ending Soon
- response
Contact Us
If you have any related questions to our products and services, do not hesitate to contact us
Message on Thank You
For Visiting
Our Store
© Copyright 2025, Auto Parts Connection. All rights reserved.
