Tap to view 9 more
Autolite 4051 - Autolite 4051 Copper Non-Resistor Spark Plug
$294
MSRP: $4.00
Save: $1.06
In stock
limited availability at this price!
Pay over 3-12 months with 
. Learn more
. Learn more
AUTOLITE part description
Product Description
Autolite 4051 Copper Non-Resistor Spark Plug
Features & Benefits
- One-Piece terminal stud provides a reliable high voltage electrical connection
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- High alumina multi-rib insulator helps prevent flash-over which can lead to misfires
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- Heat-fused glass composite resistor center seal provides high performance EMI noise suppression and a 100 percent leak-proof seal
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Solid copper core center electrode provides optimal thermal and electrical conductivity for better performance in all driving conditions
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- High nickel alloy side electrode resists electrical and chemical wear providing excellent durability
- 2 year limited warranty
Product Attributes
| Resistance | 1 82 |
| Ground Electrode Tip Design | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Removable Nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.025 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 21 MM |
| Seat Type | Flat |
| Reach | 0.75 IN |
| Thread Diameter | 14 MM |
| Insulator Material | Ceramic |
| Resistor Type | No |
| Ground Electrode Tip Material | Nickel |
| 9608 | Standard |
| 9805 | Short Projection |
| Washer Included | Yes |
| Grade Type | Regular |
| Hex Size | 13/16 IN |
| Manufacturer Heat Range | 15 |
| 9459 | Yes |
| 9507 | Hex |
| 9746 | No |
| Reach | 19.049999999999997 MM |
| Pre-Gap Size | 0.635 MM |
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 | 00009100254689 |
| UNSPSC | 26101732 |
Part Interchanges
- Bosch 7700
- Champion Spark Plug 782
- DENSO Auto Parts 4123
- Motorcraft AG501X
- NGK 2145
- Balkamp 819-6372
- StrongArm 4051
- StrongArm F4051
- ACDelco 510-788
- BMW 51242497679
- BMW 51248410755
- Stabilus SG402030
- Mighty Lift F95862
- AMS 4051
- NGK B10EG
- NGK B10EGP
- NGK B10EGV
- NGK B10EIX
- NGK B10ES
- NGK B10EVX
- NGK B95EGV
- NGK BR10ECS
- NGK BR10EG
- NGK BR10EG SOLID
- NGK BR10EIX
- NGK BR10EIX SOLID
- NGK BR10ES
- NGK BR10ES SOLID
- NGK BR10EV
- NGK BR10EYA
- NGK BR10HIX
- NGK R6918B-8
- Splitfire - Archived SF405A
Fits Vehicles
- Arctic Cat EXT 440 (1971)
- Arctic Cat EXT 399 (1971)
- Arctic Cat EXT 340 (1971)
- Ski-Doo Blizzard 7500 Plus (1980-1981)
- Ski-Doo Blizzard 6500 Plus (1978)
- Polaris 800 Dragon IQ (2010)
- Polaris 800 RMK Assault 155 (2011)
- Polaris 800 PRO-RMK 163 (2011)
- Polaris 800 PRO-RMK 155 (2011)
- Polaris 800 RMK 155 (2009-2011)
- Polaris 800 RMK 144 (2009-2010)
- Polaris 800 IQ (2009)
- Polaris 800 Dragon SP (2009)
- Polaris 800 Dragon RMK 163 (2009-2010)
- Polaris 800 Dragon RMK 155 (2009-2010)
- Polaris 800 Assault RMK 146 (2009-2010)
- KTM 65 XC (2008-2009)
- Gas Gas MC 65 (2006-2007)
- Arctic Cat AC 440 Sno Pro Modified (2005-2006)
- Suzuki RM65 (2003-2005)
- Suzuki RM85L (2003-2008, 2012)
- Suzuki RM100 (2003)
- Honda CR85RB Expert (2003-2007)
- Honda CR85R (2003-2007)
- ATK 50 MXLQ (2003-2005)
- Arctic Cat AC 440 Sno Pro (2003-2006)
- Yamaha YZ85 (2002-2019)
- Suzuki RM85 (2002-2009, 2012, 2015-2018)
- Ski-Doo Mach Z Tech Plus (2001-2003)
- Kawasaki KX65 (2000-2009, 2011-2014, 2016-2019)
- ATK 125 LQ (2000)
- Kawasaki JH1200 Ultra 150 (1999)
- Arctic Cat Z 440 Sno Pro (1999-2003)
- Yamaha SRX700 (1998-2002)
- Yamaha MSRX700 Mountain SRX 700 (1998)
- Ski-Doo Mach Z R (1998-2000)
- Ski-Doo Mach Z LT SV Track (1998)
- Ski-Doo Mach Z LT R (1998-1999)
- KTM 60 SX (1998-2000)
- KTM 125 Sting (1998)
- Arctic Cat ZR 440 Sno Pro (1998-2002)
- Ski-Doo Mach Z LT (1997-1999)
- Ski-Doo Mach Z (1997-2002)
- Honda CR80RB Expert (1996-2002)
- TM MX125 (1995-2003)
- TM 125E (1995-2003)
- TM 80E (1995-2000)
- TM MX80 (1995-2000)
- Ski-Doo Formula Mach Z (1993-1995)
- KTM 125 EXC (1993-2001)
- KTM 125 SX (1992-2011)
- Kawasaki KX80 (1992-2000)
- Husqvarna WMX 125 (1990)
- Arctic Cat Wildcat Mountain Cat (1989)
- Arctic Cat Wildcat 650 (1988-1989)
- Suzuki RM80 (1986-2001)
- Honda CR80R (1986-2002)
- Arctic Cat Cheetah 530 L/C (1986-1988)
- Arctic Cat El Tigre (1986)
- Arctic Cat El Tigre 6000 (1985, 1987)
- Yamaha YZ80 (1984-2001)
- KTM 125 MX (1984-1986)
- Honda CR500R (1984-2001)
- Kawasaki KX125 (1983, 1985-1993)
- Arctic Cat El Tigre 6000 L/C (1981)
- Yamaha TZ250 (1980-1981)
- Yamaha IT175 (1977-1978)
- John Deere Liquifire 440 (1977-1978)
- John Deere Liquifire 340 (1977-1978)
- John Deere Cyclone 440 (1977-1978)
- John Deere Cyclone 340 (1977-1978)
- Bultaco Pursang 370 (1977-1979)
- Arctic Cat Z 440 (1977)
- Arctic Cat Z 250 (1977)
- Yamaha YZ125 (1976-1981)
- John Deere JDX4 (1975)
- John Deere 800 (1975)
- John Deere JDX6 (1975)
- Yamaha TZ350 (1974)
- John Deere JDX8 (1974-1975)
- Yamaha TR3 (1972)
California residents see Prop 65 Warning(s)
Don't know your part number?
Take a photo and we'll identify it!
