Bosch (4505) HGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 Automotive Parts and Accessories (Bosch)
List Price: $14.33 Price: $4.69 You Save:$9.64 (67%)
Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
Factory pre-set gap allows for easy installation that never requires adjustment
Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system
ACDelco 41-993 Platinum Spark Plug , Pack of 1 Automotive Parts and Accessories (ACDelco)
List Price: $9.38 Price: $4.20 You Save:$5.18 (55%)
One-piece integral suppressor seal meters spark plug energy to help provide long electrode life and seals against compression leakage
Spark gap remains virtually unchanged during the life of the plug for increased fuel efficiency
12-month/12,000-Mile Limited Warranty
NGK (7397) TR5IX Iridium IX Spark Plug, Pack of 1 Automotive Parts and Accessories (NGK)
List Price: $9.87 Price: $6.99 You Save:$2.88 (29%)
Constructed from durable material
Fine Iridium tip ensures high durability
Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
Bosch (4509) HGR9LQI0 9 Platinum IR Fusion Spark Plug, Pack of 1 Automotive Parts and Accessories (Bosch)
List Price: $14.33 Price: $6.10 You Save:$8.23 (57%)
Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system
Denso IT16 Iridium Spark Plug , Pack of 1 Automotive Parts and Accessories (Denso)
List Price: $0.00 Price: $8.03
Spark Plug Gap - NGK Spark Plugs - Tech Video
Correct way to check, set and adjust your spark plug gap. NGK Spark Plugs USA.