







Autolite APP646 Double Platinum Automotive Replacement Spark Plugs (4 Pack)
Autolite APP646 Double Platinum spark plugs (4-pack) for cars and trucks — platinum-to-platinum design reduces gap erosion and misfires, nickel top material, 14mm thread, 5-year limited warranty.
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Autolite Double Platinum Spark Plugs have better materials to give your engine better performance. Platinum-to-platinum design greatly decreases gap erosion, reduces misfires, and provides improved durability compared to standard plugs. It's the superior-performing spark plug, providing preferred technology for DIS engines. 5-year limited warranty. Product: Autolite APP646 (OEM equivalent APP646) 4-count pack. Top material: Nickel. Core material: Platinum. Thread size: 14mm (vehicle-specific fit for many cars and trucks). Includes platinum spark plug. Manufacturer listed in product sources as FRAM and AUTOLITE. Unit Count: 4. Compatible with Vehicle Type: Car, Truck. Manufacturer Warranty Description: Manufacturer.
- MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- high nickel alloy side electrode maintains precise gap
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
Specifications:
| Materials & Construction | |
| Material | Nickel |
| Outer Material | Nickel |
| Product Details | |
| Automotive Fit Type | Vehicle Specific Fit |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Platinum |
| Included Components | Platinum Spark Plug |
| Item Type Name | Double Platinum Spark Plug |
| Manufacturer Part No | APP646-4PK |
| Manufacturer Warranty Description | Manufacturer |
| OEM Equivalent Part Number | APP646 |
| Thread Size | 0.55 inches |
| Top Material Type | Nickel |
| Unit Count | 4.0 Count |
| Sizing & Dimensions | |
| Height | 1.00 inches |
| Length | 3.38 inches |
| Product Dimensions | 3.38 x 1.00 x 1.00 inches |
| Weight | 2.40 ounces |
| Width | 1.00 inches |
| Technical Specifications | |
| OEM Equivalent Part Number | APP646 |
| Unit Count | 4.0 Count |
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