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Autolite 3924 Copper Spark Plug
The Autolite Copper Resistor Spark Plug assists drivers of gasoline-powered cars that rely on modern audio systems and electronic accessories while covering long-distance commuting routes. Its internal resistor helps cut down ignition noise that could interfere with radios or in-cabin electronics, which benefits vehicles used for daily travel and highway cruising. The copper core conducts heat away from the firing tip, helping the plug remain clean during varied driving speeds. With a 5/8-inch hex, it fits many service sockets, making plug changes straightforward for do-it-yourself owners and professional shops. The Autolite 3924 suits drivers who want consistent spark performance while preserving clear sound from entertainment and communication equipment.
| Resistance | 4000 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 | 0.044 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 16 MM |
| Seat Type | Flat |
| Reach | 0.75 IN |
| Thread Diameter | 14 MM |
| Insulator Material | Ceramic |
| Resistor Type | Yes |
| Ground Electrode Tip Material | Nickel |
| Center Electrode Design | Standard |
| Center Electrode Projection | Mid Projection |
| Washer(s) Included | Yes |
| Grade Type | Regular |
| Hex Size | 5/8 IN |
| Manufacturer Heat Range | 9 |
| Skirt | Yes |
| Hex Type | Hex |
| Indexed | No |
| Reach | 19.049999999999997 MM |
| Pre-Gap Size | 1.1176 MM |
| Reach (Millimeter) | 19 |
| Pre-Gap Size (Millimeter) | 1.1 |
| Resistance (Ohm) | 4000 |
| Thread Diameter (Millimeter) | 14 |
| Hex Size (Inch) | 5/8 |
| Thread Type Standard | Metric |
| Thread Size | M14 - 1.25 |
| Center Electrode Insulator Tip Projection | 3.4 MM |
| Washer Type | Crush |
| Thread Diameter | 14 MM |
| Center Electrode Insulator Tip Projection | 0.133 IN |
| Country of Origin (Primary) | MX |
| Harmonized Tariff Code (Schedule B) | 8511100000 |
| Warranty Time | 2 |
| Warranty Time UOM | YR |
| Harmonized Tariff Code (HTS) | 8511100000 |
| UPC | 00009100039248 |
| UNSPSC | 26101732 |
| Brand | Part Number |
|---|---|
| ACCEL | 416 |
| ACDelco | 41-602, 41-629, FR3CLS, FR3LS, FR3LSK |
| Atlas Spark Plugs | C15R5 |
| Beru | 14 F-8 DU, 14 F-8 DU4, 14 F-9 DUO, 14 FGH-8 DTUR, 14 FGH-8 DTURXO, 14 FGR-7 KQU, 14 FGR-8 KQU, 14 FR-7 DU2, 14 FR-7 LDU, 14 FR-8 DU, 14 FR-8 KU, 14FR-7DPUX, UXF 79 |
| Bosch | W6B, 7957, F7DCR4, F8DC4, FGR7KQE0, FGR8KQE, FR7DC+, FR7KTC, FR7LDC+, FR8DC+, FR8DC , FR8DCX+, FR8DS, FR9DC, FR8DC |
| Briggs & Stratton | 491055, 491055S, 499608, 5066A, 691043, 692051, 694385, 805015 |
| CHAMPION | 71ECO, 71, 89 |
| Champion Spark Plug | 71, 5071, 71G, 71S, 946, 946-1, QC12YC, RC10YC4, RC12LYC, RC12YC, RC12YC5, RC89TMC, RC9YC, RC9YC4, XC12YC |
| Chrysler | 4609079, 56006240 |
| DENSO Auto Parts | 3006, K16PR-U, K16PR-U11, K16R-U, K16R-U11, KJ16CR-U11, KJ16CR11, Q16PR-U11, Q16PR-U15, Q16R-U, Q16R-U11 |
| Delphi | 23521 |
| E3 | E3.48, E3.58, E3.64 |
| E3 SPARK PLUGS | E320, E348, E3.33 |
| Ford | 8U2J12405VA, AGSP32PP, AGSP32P, AGSP32C |
| Gator Spark Plugs | 77-303 |
| General Motors | 5614240, 5614257, 88901233, FR3LS |
| Hyundai | 18814-11051, 27410-25000, 1881411051, 2741025000 |
| Jaguar | XR815350 |
| John Deere | M78543 |
| Mitsubishi | MS851357 |
| Mopar | SP00RC12YC |
| Motorcraft | AGSP32, AGSP32C, AGSP32C1, AGSP32P, AGSP32PP, SP406 |
| NGK | 1148, BCP5ES, BCPR5E-11, BCPR5EIX-11, BCPR5ES-11, BCPR5EY, BCPR5EY-11, BCPR5EY-N-11, BK5REKU, BKR5E, BKR5E S25, BKR5E-11, BKR5E-N-11, BKR5E-N11, BKR5EK, BKR5EKB-11, BKR5EKU, BKR5EN-11, BKR5ES, BKR5ES-11, BKR5ESA-11, BKR5EY, BKR5EY-11, BKR5EYA, BKR5EYA-11, BKR6E, BKR6EK, BKR6EQUA, BKR6ES-11, BKR6EY, BKR6EYA, BRK5E-11, FR45, FR5, FR5-1 |
| NGK SPARK PLUGS | BKR5E BLYB, BKR5E S25, BKR5E-11, CS6 S100, BKR6ES-11, BKR5E, FR5, BKR5E11, BKR6ES11, 1172, 1716, 7938, 6719, 7373, 6953, 5553 |
| Splitfire - Archived | CC392D, SF392D |
| Torch | K4RTC3, K5RF-11, K5RTC, K5RTC-11, K5TC |
| Toyota | 9019-01244, 90919-01164, 90919-01176, 901901244, 9091901164, 9091901176 |
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