BOSCH 4504 Specifications |
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Center Electrode Core Material | Platinum | Center Electrode Tip Material | Platinum | Gap Size | 1.6 mm | Ground Electrode Quantity | 4 | Ground Electrode Tip Material | Nickel-Yttrium | Hex Size | 16 | Insulator Material | Ceramic | Manufacturer Heat Range | 9 | Reach | 17.5 mm | Resistance | 6000 | Seat Type | Tapered | Short Style | No | Thread Diameter | 14 MM |
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PLATINUM IR FUSION; Pre-Set Gap: 0.063" |
Bosch platinum-iridium fusion spark plugs features a patented, fused iridium and platinum centre electrode, combined with exclusive surface air gap firing technology to produce a longer, more powerful spark. Its four yttrium-enhanced ground electrode design outperforms OE iridium plugs by significantly reducing gap wear. This means less stress on the ignition system for quicker starts, more efficient fuel combustion, and a longer performance life. In addition, Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system.
Features & Benefits:
- Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement
- Unique heat-fused, platinum-iridium centre electrode for exceptional wear resistance and longest service life
- Four yttrium-enhanced ground electrodes for maximum power and exceptional peformance life
- Improved cold-start ability for less fuel condensation due to fine centre electrode
- Factory pre-set gap for ease of installation. Never requires adjustment
Which BOSCH Spark Plug Is Right For You?
Material / Series |
Lifespan / Durability |
Performance / Ignitability |
Efficiency / Fuel Economy |
Copper / Nickel
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★★ |
★ |
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Platinum
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★★★★ |
★★★★ |
★★ |
Double Platinum
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★★★★★ |
★★★ |
★★ |
Iridium
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★★★★★★ |
★★★★★ |
★★★ |
Double Iridium
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★★★★★★★ |
★★★★★ |
★★★ |
Double Iridium Pin-to-Pin
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★★★★★★★ |
★★★★ |
★★★ |
Bosch OE-Fine Wire Performance Guarantee
Bosch guarantees you will feel improved performance in your vehicle when using any of Bosch OE Fine Wire Spark Plugs (Double Iridium, Double Iridium Pin-to-Pin, Double Platinum and Platinum). However, if you do not experience quicker starts, smoother acceleration and improved fuel efficiency, you can return the plugs with a dated sales receipt and Bosch will refund the purchase price of the spark plugs.
PLATINUM |
Offer extends for four (4) years or for the manufacturer’s recommended spark plug change interval as indicated in the owner’s manual -- whichever occurs first. Learn More | 4 YEAR PERFORMANCE GUARANTEE |
Additional Resources Diagram of Proper Torquing
Spark Plug Condition Identification
Spark Plug Gap Illustrations
Spark Plug Temperature Curves-Heat Range
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Warranty Information:12 Months Satisfaction Guarantee for Double Iridium, Double Platinum, and Platinum Spark Plugs OnlyWarranty Details |
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