Champion® 518 Spark Plug
Fits: 1925 Willys Knight Model 66
Manufacturer #518
Champion® 518 Spark Plug
Fits: 1925 Willys Knight Model 66
Manufacturer #518
$10.96
$12.89
Save $1.93 (15%)
In Stock
Get it between Tue, Sep 23 - Thu, Sep 25, 2025
Fast Shipping
We ship fast so you can get on the road that much faster100% Safety
Only secure payments| SKU | CS518 |
|---|---|
| Brand | Champion® |
| Part Name | Spark Plug |
| Part | # 518 |
| Quantity Per Vehicle | 1 |
| Pack of | 1 |
| Condition | New |
| Manufacturer’s Warranty | Iridium plugs 7 years - Double Platinum Power 5 years - Platinum Power 3 years - Copper Plus 2 years |
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Auburn
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Buick
-
Chevrolet
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Cunningham
-
Dodge
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Falcon Knight
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Franklin
-
Lasalle
-
Lincoln
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Marmon
-
Nash
-
Oldsmobile
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Packard
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Pierce-arrow
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Reo
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Rickenbacker
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Roosevelt
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Stearns Knight
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Studebaker
-
Velie
-
Westcott
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Willys
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Windsor
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Yellow Cab
- Copper Plus Spark Plug W18
- Champion Copper Plus 518 Spark Plug W18 for Agriculture and Industrial
- Champion® industrial and agricultural spark plugs are backed by global engineering from Federal-Mogul. Precious metals, FISS and Hot Lock designs allow us to provide a plug that Withstands today's high-temperature/high load service environments.
- Designed for high compression and aggressive environments
- Manufactured for long-lasting durability
- Backed by global engineering from Federal-Mogul
- Superior performance and long lasting durability
| Plug Type | W18 |
|---|---|
| Seat Type | Flat |
| Hex Size (IN) | 0.938 |
| Hex Size (MM) | 23.830 |
| Hex Type | Hex |
| Thread Diameter (IN) | 0.875 |
| Thread Diameter (MM) | 22.225 |
| Reach (IN) | 0.75 |
| Center Electrode Tip Material | Nickel |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Resistor Type | No |
| Manufacturer Heat Range | 18 |
| Center Electrode Design | Standard |
| Indexed | No |
| Part Description | Spark plug |
| Washer Included | Yes |
| Washer Type | Crush |
| Center Electrode Diameter (Inch) (IN) | 0.125 |
| Classification | Champion agricultural plugs |
| Grade Type | Premium |
| Ground Electrode Material | Nickel copper alloy |
| Installed Height (Inch) (IN) | 2.57 |
| Pre-Gap Size (IN) | 0.025 |
| Pre-Gap Size (MM) | 0.64 |
| Taper Diameter (Inch) (IN) | 0.42 |
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund.
Warranty Policy
Right parts, guaranteed. If you find any defects, simply notify us within the warranty period, and we’ll take care of it. Check out our Warranty Policy for more details.
$10.96
$12.89
Save $1.93 (15%)
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