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(888) 312-8812 Login SignupAUTOLITE 255 Spark Plug - Copper Non-Resistor, 3/4-inch Hex, Standard, Nickel
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MSRP: $2.89
$278
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AUTOLITE 255 Part Description
Manufacturer
Product Description
Autolite 255 Copper Non-Resistor Spark Plug
Features & Benefits
- One-piece terminal stud provides a reliable high voltage electrical connection
- High alumina multi-rib insulator helps prevent flash-over which can lead to misfires
- Optimized heat range supports consistent combustion under varying engine loads
- Ground strap orientation encourages consistent spark propagation under load variation
- Electrode shape promotes reliable ignition in engines with richer fuel mixtures
Autolite Spark Plug
The Autolite Spark Plug is a strong match for older ignition systems and small-engine applications where a standard layout is preferred for strong coil output transfer. The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation, supporting the plug's structure during high-heat cycles. The solid copper core center electrode aids in thermal control, reducing firing-tip heat and improving resistance to fouling when engines operate at fluctuating loads or extended idle. Additionally, its high nickel alloy center and ground electrode resists wear in environments where combustion residue is more prominent. The nickel-plated shell is corrosion resistant to provide increased durability over extended periods. The Autolite 255's heat-fused glass composite resistor center seal provides a 100 percent leak-proof seal and ensures high performance EMI noise suppression.
AUTOLITE 255 Specifications
Product Attributes
| Resistance | 1 82 |
| Ground Electrode Tip Design | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Non-Removable Nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.03 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 22 MM |
| Seat Type | Flat |
| Reach | 9.4996 MM |
| Thread Diameter | 14 MM |
| Insulator Material | Ceramic |
| Resistor Type | No |
| Ground Electrode Tip Material | Nickel |
| Center Electrode Design | Standard |
| Center Electrode Projection | Short Projection |
| Washer(s) Included | Yes |
| Grade Type | Regular |
| Hex Size | 3/4 IN |
| Manufacturer Heat Range | 8 |
| Reach | 0.374 IN |
| Skirt | Yes |
| Hex Type | Hex |
| Indexed | No |
| Pre-Gap Size | 0.7619999999999999 MM |
| Hex Size (Inch) | 3/4 |
| Resistance (Ohm) | 1 |
| Thread Diameter (Millimeter) | 14 |
| Reach (Millimeter) | 9 |
| Pre-Gap Size (Millimeter) | 0.8 |
Additional Information
| Country of Origin (Primary) | CN |
| Harmonized Tariff Code (Schedule B) | 8511100000 |
| Warranty Time | 2 |
| Warranty Time UOM | YR |
| Harmonized Tariff Code (HTS) | 8511100000 |
| UPC | 00009100925510 |
| UNSPSC | 26101732 |
AUTOLITE 255 Part Interchanges
| Brand | Part Number |
|---|---|
| Bosch | H9B, WS8E (SE), WS9EC |
| Champion Spark Plug | 840, 3344, 5843, 8431, 843S, CJ8, CJ8Y, RCJ8 |
| DENSO Auto Parts | 6015, W14M-U, W14MR-U, W20M-U, W20MR-U |
| Motorcraft | A7N, A7NX, AR7N |
| NGK | 744, BM6A, BM6A S25, BM6A SOLID, BM6Y |
| ACDelco | CS45, CSR43, CSR45 |
| General Motors | 5612620 |
| Splitfire - Archived | SF25E |
| Caterpillar | 8F-6347 |
| Sears | STD360915, STD360946 |
| Tennant | 45770-4 |
| Torch | L6C, L6RC |
AUTOLITE 255 Cross References
We have 61 alternatives for the 255 by AUTOLITE:
- AC-DELCO CS45
- AC-DELCO CSR43
- AC-DELCO CSR45
- BOSCH 7543
- BOSCH 7804
- BOSCH 7810
- BOSCH WKA145T3
- BOSCH WS8E
- BOSCH WS9EC
- CATERPILLAR 8F-6347
- CHAMPION 5843
- CHAMPION 840
- CHAMPION 843
- CHAMPION CJ11
- CHAMPION CJ8
- CHAMPION HT10J
- CHAMPION J91
- CHAMPION JT8
- CHAMPION RCJ8
- CHAMPION TJ8J
- CHAMPION UCJ7G
- CHAMPION UCJ8G
- DENSO 6015
- DENSO 6016
- DENSO 6019
- DENSO 6022
- DENSO 6025
- DENSO 6034
- DENSO 6036
- DENSO W14MR-U
- DENSO W14M-U10
- DENSO W14M-US
- DENSO W20MR-U
- DENSO W20M-U
- DENSO W20M-US
- MIGHTY 7N
- MOTORCRAFT A7N
- MOTORCRAFT A7NX
- MOTORCRAFT AR7N
- NGK 1184
- NGK 2132
- NGK 4002
- NGK 4226
- NGK 4862
- NGK 5466
- NGK 5921
- NGK 6021
- NGK 7421
- NGK 744
- NGK BM6A
- NGK BM6Y
- NGK BMR6A
- NGK BMR7A
- NGK CS2
- PRESTOLITE 14-7N
- SEARS STD360915
- SEARS STD360946
- SPLITFIRE SF25E
- TENNANT 45770-4
- TORCH L6C
- TORCH L6RC
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AUTOLITE 255 Manufacturer Information
Autolite® allows you to go anywhere—without delay—with its comprehensive spark plugs offerings. Although it was initially established as a buggy lamp manufacturer in 1911, it slowly gained recognition as an ignition expert when it developed and introduced the very first Autolite spark plug in 1935. Over the years, the company has reached greater heights, producing and supplying spark plugs and other ignition parts to some of the major automotive manufacturers, such as Chrysler, Studebaker, Willys, and Packard. Headquartered in Lake Forest, Illinois, Autolite is a proud member of the FRAM Group, North America's largest and most diversified group servicing the vehicle replacement parts market.
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