Autolite 3922 Nickel Spark Plug
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| Brand | Autolite | Part # | 3922 |
|---|---|---|---|
| Gap | 1.0 mm (.039") | Heat Range | 1 (-) |
| Thread | 14 mm x 1.25 mm | Reach | 19 mm (3/4") |
| Longevity | 30 000 mi. | Torque specificatons | Cast Iron: 26-29 lb-ft; Aluminum: 15-22 lb-ft |
| Projection | Projected | Resistor | 4 000 Ω |
| Seat Type | Gasket | Hex Size | 5/8" (16 mm)5/8" (16 mm) |
| Center Electrode | Ground Electrode | ||
| Material | Nickel | Material | Nickel |
| Design | Standard | Design | Standard |
| Size | 2.5mm | Quantity | 1 |
| Name | Reference type | Thread | Reach | Seat Type | Materials | Gap | Heat range | Resistor |
|---|---|---|---|---|---|---|---|---|
| NGK BCPR7ET (5509) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 5 000 Ω | |
| NGK BKR6EK (2288) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 1 000 Ω | |
| NGK BKR6EKUB (7969) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.5 mm (.020") | 5 000 Ω | |
| NGK ZFR6F-11G (6987) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| Denso K22PR-U (3165) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.8 mm (.031") | 5 000 Ω | |
| Denso IK22 (5310) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 0.8 mm (.031") | 5 000 Ω | |
| Bosch F5DP0R (0241245641) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 0.6 mm (.024") | 1 000 Ω | |
| Bosch FR5DC (79010) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.8 mm (.031") | 6 000 Ω | |
| Bosch FR6DCX (7553) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | - | |
| Bosch FR6DCX+ (7953) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 6 000 Ω | |
| Champion RC7PYCB (3068) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 0.75 mm (.030") | - | |
| Champion RC7PYCB4 (3340) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | - | |
| Champion RC7YC (340) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | - | |
| Champion C63YC (796) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.65 mm (.026") | - | |
| Champion RC7YC3 (444) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.75 mm (.030") | - | |
| Denso K16TNR-S9 (3329) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 5 000 Ω | |
| Denso SK22PR-M11 (3372) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.1 mm (.043") | 5 000 Ω | |
| Denso K22PBR-S (5062) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 5 000 Ω | |
| Denso K22PB (5069) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | - | |
| Denso IQ22 (5313) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 0.8 mm (.031") | 5 000 Ω | |
| Denso K22TM11 (3263) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | - | |
| Denso K22TMR11 (3249) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| Denso PK22PR11 (3265) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.1 mm (.043") | 5 000 Ω | |
| Denso PK22PR8 (3273) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 0.8 mm (.031") | 5 000 Ω | |
| Denso Q22PR-U11 (3257) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK BCPR7ES-11 (1095) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK PFR7G11 (2380) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.1 mm (.043") | 5 000 Ω | |
| NGK BKR7EIX (2667) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 0.8 mm (.031") | 5 000 Ω | |
| NGK PFR7H-10 (3978) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK PZFR7G-G (4253) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 0.8 mm (.031") | 5 000 Ω | |
| NGK BKR7EQUP (4285) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 0.5 mm (.020") | 5 000 Ω | |
| NGK BKR7E-E (4776) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.8 mm (.031") | 10 000 Ω | |
| NGK PFR7B (4853) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 0.7 mm (.028") | 5 000 Ω | |
| NGK IFR8H-11 (5068) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.1 mm (.043") | 5 000 Ω | |
| NGK BCPR7EIX (5690) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 0.8 mm (.031") | 5 000 Ω | |
| NGK BCPR7EIX-11 (5691) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK BKR7EKU (5881) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.6 mm (.024") | 5 000 Ω | |
| NGK ZFR7F (5913) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.8 mm (.031") | 5 000 Ω | |
| NGK BKR7EIX-11 (6988) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK PFR7G-11S (7772) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.1 mm (.043") | 5 000 Ω | |
| NGK BCPR7ES (6282) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 5 000 Ω | |
| NGK BKR7E (4644) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.9 mm (.035") | 5 000 Ω | |
| NGK BKR7E-11 (5791) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK BKR7ES-11 (4952) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| NGK BKUR7ET (5496) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 0.8 mm (.031") | 1 000 Ω | |
| NGK ZFR7F-11 (6855) | Documentation | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.1 mm (.043") | 5 000 Ω | |
| Denso W20ETR-S (3060) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso W20EPR-U10 (3048) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso K22TNR-S (3197) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso K20TNR-S (3196) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso W16ETR-S (3216) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso W20ETRL (3277) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso K20TNR (3304) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso PQ20TT (4508) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Titanium | 1.0 mm (.039") | 5 000 Ω | |
| Denso IQ16TT (4706) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.0 mm (.039") | 5 000 Ω | |
| Denso PQ16TT (4507) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Titanium | 1.0 mm (.039") | 5 000 Ω | |
| Denso IQ20TT (4707) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.0 mm (.039") | 5 000 Ω | |
| Denso K20PBR-S10 (5061) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| Denso K20TXR (5063) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK BKUR6ET-10 (2397) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 1 000 Ω | |
| NGK FR4GP (2685) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK GR5 (2851) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK FR5GP (3248) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK GR5GP (3351) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK PFR7H-10 (3978) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK FR4 (5155) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK IFR6D10 (5344) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.0 mm (.039") | 1 000 Ω | |
| NGK PFR6T-10G (5542) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK ZFR6BGP-S (92213) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK IFR6V-10G (92085) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK ZFR5BGP (90804) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | - | |
| NGK IFR5N-10 (7866) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK FR5 (7373) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK GR4IX OSN (7149) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK GR5IX (7214) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Iridium-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK BCPR5EGP (7086) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK BCPR6EGP (7088) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK BPR5EGP (7082) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Platinum-Nickel | 1.0 mm (.039") | 5 000 Ω | |
| NGK FR5AP-10 (6371) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.0 mm (.039") | 5 000 Ω | |
| NGK PFR6H-10 (6290) | Same characteristics | 14 mm x 1.25 mm | 19 mm (3/4") | Gasket | Double Platinum | 1.0 mm (.039") | 5 000 Ω |
Characteristics Reference
Gap
Gap is a distance between center and ground electrodes. Bigger gap creates bigger spark, which ignite more fuel. On the other hand, bigger spark is harder to occur and has more chances to misfire. That’s why it’s important to stick to OE gap sizes.Thread
Thread diameter and pitch are fundamental dimensions. You physically aren’t able to fit spark plug with another thread, so check it in a first place.Heat range
This parameter indicates how well spark plug transfer heat from the engine. Some engines produce more heat (i.e. race engines), some less, but all spark plugs should operate in same temperatures: from 500°C and below 950°C. Since all manufacturers have their own heat ranges, we’ve unified all of them to NGK’s chart: heat range “14 (4)” means 14 is the brand’s heat range and 4 is NGK’s equivalent. Note: E3 and Autolite cannot be referenced by heat range.Reach
Reach is a distance between spark plug seat and the end of a thread. If it will be too short, spark will occur outside the combustion chamber; too long – it’ll collide with the piston. So it’s crucial to follow the OE dimentions.Resistor
Occurring of a spark plug is followed with another event – radio frequency interference (RFI). RFI creates a static electricity, that can accumulate and discharge on car’s electronics and destroy it. Resistor surpress RFI and saves your electronics. If your car from factory has spark plugs with resistor, use only resisted spark plugs. If you have an older car with little of electronics, you can use both resistor and non-resistor spark plugs.Materials
All materials works the same. They differ by the durability in following order (first the strongest):- Ruthenium
- Iridium
- Platinum
- Silver
- Nickel/Copper
Reference type
Documentation
For this relationship we use official documentation from manufacturers, like this one:
Same characteristics
While cross-reference table is formed from manufacturer’s charts, this table we make based on our data. Each spark plug has its own set of characteristics. Similar spark plugs are those which characteristics are fully or closely corresponding to each other. First of all, we make sure that spark plug will fit the engine by the thread diameter, thread pitch, hex size and reach. If any of those parameters differ, the spark plug cannot be installed. Secondly, we ensure that spark plug is designed for the same engine condition: has the same heat range, gap, projection, resistor. For more information, check our spark plugs guide. The two things that can differ are materials and electrode design, since they are interchangeable.Was this page useful for you?
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