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AUTOLITE 403
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$1.60
Price
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$0.00
Core
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+ Sold in packs of 1x1
Pack
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$1.60
Total
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(Only 4 Remaining)
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| AUTOLITE 403 Specifications |
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| Center Electrode Core Material | Copper | | Center Electrode Design | Standard | | Center Electrode Tip Material | Nickel | | Electrical Terminal Type | Removable Nut | | Gap Size | 0.034" | | Gap Size | 0.9mm | | Ground Electrode Core Material | Nickel | | Ground Electrode Quantity | 1 | | Ground Electrode Tip Design | Tapered | | Ground Electrode Tip Material | Nickel | | Hex Size | 21mm | | Hex Size | 13/16" | | Insulator Material | Ceramic | | Reach | 0.75" | | Reach | 19.5mm | | Resistance | 5000 82 | | Resistor Type | Yes | | Seat Type | Flat | | Thread Diameter | 14mm | | Tip Configuration | Short Projection |
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| Copper Resistor; Pre-Set Gap: 0.034" |
Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on Autolite copper plugs for performance and value, backed by decades of experience and passion.
Features & Benefits:
- Guaranteed to deliver quick starts, good fuel economy and smooth acceleration.
- Copper core center electrode for higher thermal conductivity
- Specially engineered high nickel alloy center and ground electrode for extended life
- High alumina ceramic for high dielectric strength
- Leak proof, heat fused internal seal for durability
- Multi-rib insulator prevents flash-over
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.  Which AUTOLITE 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 XP
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★★★★★ |
★★★★★ |
★★ |
Iridium Ultra
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★★★★★★ |
★★★★★ |
★★ |
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| OEM / Interchange Numbers: 5613388, 5613989, 5613990 |
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