How to inspect a spark plug for an abridged gap and identify potential issues on Ford Ranger?

Check the spark plug against gap problems due to oil or carbon build-up. Clean if necessary. Look at oil fouling (wet black deposits) and also carbon fouling (dry black deposits). Normal burning (light tan deposits) should be checked and preignition or excessive heating should be observed. Change spark plug when necessary.

How to inspect a spark plug for issues such as bridged gaps, deposit buildup, oil fouling, carbon fouling, normal burning, preignition, overheating, and fused deposits on Ford Mustang?

Inspect the spark plug for bridged gaps and deposit buildup from oil or carbon fouling. Clean if necessary. Check for normal burning, preignition, overheating signs, and fused deposits. Address oil leaks and ensure proper ignition timing and fuel type to avoid damage, replacing the spark plug if needed.

OEM Ford Spark Plug

Ignition Spark Plug

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50 Spark Plugs found

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Ford Spark Plug Part Number: PZK-1F
$10.25 MSRP: $20.73
You Save: $10.48 (51%)
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Product Specifications
- Replaced by: PZK-1F-X
Fits the following Ford Models:
- Expedition | 2007 | Eddie Bauer, EL Eddie Bauer, EL Limited, EL XLT, Limited, XLT | 8 Cyl 5.4 L GAS
- Explorer | 2006-2008 | Eddie Bauer, Limited, XLT | 8 Cyl 4.6 L GAS
- Explorer Sport Trac | 2007-2008 | Limited, XLT | 8 Cyl 4.6 L GAS
- F-150 | 2004-2008 | FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Limited, THE 60TH ANNIVERSARY EDITION, XL, XLT | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
- F-250 Super Duty | 2005-2007 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS
- F-350 Super Duty | 2005-2007 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS
- Mustang | 2005-2008 | Bullitt, GT, Shelby GT | 8 Cyl 4.6 L GAS
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Ford Spark Plug Part Number: AGSF-32P-M
$5.89 MSRP: $9.35
You Save: $3.46 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: High Ignitability Spark Plug; Spark Plug Double Platinum; Spark Plug Iridium Power
- Replaced by: AGSF-32P-MX
Fits the following Ford Models:
- E-150 | 2008 | Base, XL, XLT | 8 Cyl 4.6 L GAS
- E-250 | 2008 | Base | 8 Cyl 4.6 L GAS
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Ford Spark Plug Part Number: AGSF-22F-MX
$5.52 MSRP: $8.76
You Save: $3.24 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: SP-500, AGSF-22F-M
Fits the following Ford Models:
- Explorer | 1997-2005 | Eddie Bauer, Limited, NBX, Postal, Sport, XL, XL Fleet, XLS, XLS Sport, XLT, XLT Sport | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
- Explorer Sport | 2001-2003 | Base, XLS, XLT | 6 Cyl 4.0 L GAS
- Explorer Sport Trac | 2001-2005 | Adrenalin, Base, XL, XLS, XLT | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
- Ranger | 1998-2008 | Edge, FX4, Splash, Sport, STX, Tremor, XL, XLT | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS, 6 Cyl 4.0 L GAS
- Taurus | 2000-2007 | LX, SE, SE Comfort, SEL, SES, SVG | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Ford Spark Plug Part Number: 4C3Z-12A342-A
$18.33 MSRP: $28.36
You Save: $10.03 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Glow Plug; Diesel Glow Plug
- Replaces: 4C3Z-12A342-AA, 4C3Z-12A342-A2, ZD-13-A2, ZD-13
Fits the following Ford Models:
- E-350 Super Duty | 2004-2010 | Base, Chateau, XL, XLT | 10 Cyl 6.8 L CNG, 10 Cyl 6.8 L GAS, 10 Cyl 6.8 L LPG, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS, 8 Cyl 5.4 L LPG, 8 Cyl 6.0 L DIESEL
- Excursion | 2004-2005 | Eddie Bauer, Limited, XLS, XLT | 8 Cyl 6.0 L DIESEL
- F-250 Super Duty | 2005-2007 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
- F-350 Super Duty | 2004-2007 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
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Ford Spark Plug Part Number: MC3Z-12A342-F
$13.74 MSRP: $21.82
You Save: $8.08 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Glow Plug; Diesel Glow Plug
- Replaces: ZD-11, F4TZ-12A342-A, F4TZ-12A342-BA
Fits the following Ford Models:
- E-350 Econoline | 1995-1998 | Base, XL | 8 Cyl 7.3 L DIESEL
- E-350 Econoline Club Wagon | 1995-2002 | Chateau, Chateau HD, Custom, XL, XL HD, XLT, XLT HD | 8 Cyl 7.3 L DIESEL
- E-350 Super Duty | 1999-2003 | Base, XL | 8 Cyl 7.3 L DIESEL
- Excursion | 2000-2003 | Eddie Bauer, Limited, XLT | 8 Cyl 7.3 L DIESEL
- F-250 HD | 1997 | XL, XLT | 8 Cyl 7.3 L DIESEL
- F-250 Super Duty | 1999-2003 | Lariat, XL, XLT | 8 Cyl 7.3 L DIESEL
- F-350 | 1994-1997 | Base, Eddie Bauer, Special, XL, XLT | 8 Cyl 7.3 L DIESEL
- F-350 Super Duty | 1999-2003 | King Ranch, Lariat, XL, XLT | 8 Cyl 7.3 L DIESEL
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Ford Spark Plug Part Number: AGSF-22Y-PCX
$11.26 MSRP: $17.87
You Save: $6.61 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AGSF-22Y-PC, SP-492
Fits the following Ford Models:
- Focus | 2003-2007 | LX, SE, ST, ZTS, ZTW, ZX3, ZX4 ST, ZX5 | 4 Cyl 2.3 L GAS
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Ford Spark Plug Part Number: 3C3Z-12A342-A
$9.64 MSRP: $14.91
You Save: $5.27 (36%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Glow Plug; Diesel Glow Plug
- Replaces: ZD-12, 3C3Z-12A342-AA2, 3C3Z-12A342-AA, ZD-12-2
Fits the following Ford Models:
- Excursion | 2003-2005 | Eddie Bauer, Limited, XLS, XLT | 8 Cyl 6.0 L DIESEL
- F-250 Super Duty | 2003-2006 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
- F-350 Super Duty | 2003-2004 | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
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Ford Spark Plug Part Number: DYFS-12Y-PT
$12.81 MSRP: $19.82
You Save: $7.01 (36%)
Ships in 1-3 Business Days
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Fits the following Ford Models:
- Expedition | 2022-2024 | King Ranch, Limited, Max King Ranch, Max Limited, Max Platinum, Max SSV, Max XL, Max XLT, Platinum, SSV, Timberline, XL, XL STX, XLT | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS
- F-150 | 2021-2023 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT | 6 Cyl 3.5 L FULL HYBRID EV-GAS (FHEV), 6 Cyl 3.5 L GAS
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Ford Spark Plug Part Number: AGSF-24N-X
$4.22 MSRP: $6.53
You Save: $2.31 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: SP-412, AGSF-24N
Fits the following Ford Models:
- Explorer | 2006-2010 | Eddie Bauer, Limited, XLS, XLT | 6 Cyl 4.0 L GAS
- Explorer Sport Trac | 2007-2010 | Limited, XLT | 6 Cyl 4.0 L GAS
- Mustang | 2005-2010 | Base | 6 Cyl 4.0 L GAS
- Ranger | 2006-2011 | FX4, Sport, STX, XL, XLT | 6 Cyl 4.0 L GAS
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Ford Spark Plug Part Number: CYFS-13Y-RCX
$9.53 MSRP: $15.13
You Save: $5.60 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CYFS-13Y-RC, SP-532
Fits the following Ford Models:
- Escape | 2013-2016 | SE, SEL, Titanium | 4 Cyl 1.6 L GAS
- Fiesta | 2014-2019 | ST | 4 Cyl 1.6 L GAS
- Fusion | 2013-2014 | SE | 4 Cyl 1.6 L GAS
- Transit Connect | 2014-2016 | Titanium, XL, XLT | 4 Cyl 1.6 L GAS
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Ford Spark Plug Part Number: CYFS-12Y-RT3
$11.20 MSRP: $18.18
You Save: $6.98 (39%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CYFS-12Y-PT, CYFS-92-YPT, CYFS-092-YPT
Fits the following Ford Models:
- Bronco | 2021-2023 | Badlands, Base, Big Bend, Black Diamond, Everglades, First Edition, Heritage Edition, Heritage Limited Edition, Outer Banks, Raptor, Wildtrak | 4 Cyl 2.3 L GAS, 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
- Edge | 2015-2024 | SE, SEL, Sport, ST, ST-Line, Titanium | 4 Cyl 2.0 L GAS, 6 Cyl 2.7 L GAS
- Escape | 2020-2022 | SEL, Titanium | 4 Cyl 2.0 L GAS
- Expedition | 2018-2021 | King Ranch, Limited, Max King Ranch, Max Limited, Max Platinum, Max SSV, Max XL, Max XLT, Platinum, SSV, XL, XLT | 6 Cyl 3.5 L GAS
- Explorer | 2020-2023 | Base, King Ranch, Limited, Platinum, ST, ST-Line, Timberline, XLT | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- F-150 | 2015-2023 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT | 6 Cyl 2.7 L GAS, 6 Cyl 3.5 L FULL HYBRID EV-GAS (FHEV), 6 Cyl 3.5 L GAS
- Fusion | 2017-2019 | Sport | 6 Cyl 2.7 L GAS
- Maverick | 2022-2023 | Lariat, XL, XLT | 4 Cyl 2.0 L GAS
- Police Interceptor Utility | 2020-2023 | Base | 6 Cyl 3.0 L GAS
- Ranger | 2019-2023 | Lariat, XL, XLT | 4 Cyl 2.3 L GAS
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Ford Spark Plug Part Number: AZFS-32F-EX
$7.67 MSRP: $12.45
You Save: $4.78 (39%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AZFS-32F-EF4, AZFS-32F-E
Fits the following Ford Models:
- Escape | 2001-2004 | Limited, XLS, XLT | 4 Cyl 2.0 L GAS
- Escort | 1998-2003 | ZX2, ZX2 Cool Coupe, ZX2 Hot Coupe, ZX2 S/R | 4 Cyl 2.0 L GAS
- Focus | 2000-2007 | LX, S, SE, SES, Sony Limited Edition, ST, SVT, ZTS, ZTW, ZX3, ZX4, ZX4 ST, ZX5, ZXW | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Ford Spark Plug Part Number: CYFS-12-FPX
$8.74 MSRP: $13.53
You Save: $4.79 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: SP-513, CYFS-092FP, CYFS-12-FP, SP-526
Fits the following Ford Models:
- E-350 Super Duty | 2017-2019 | Base | 8 Cyl 6.2 L FLEX
- F-150 | 2010-2014 | FX2, FX4, Harley-Davidson Edition, Lariat, Lariat Limited, Platinum, SVT Raptor, XLT | 8 Cyl 6.2 L GAS
- F-250 Super Duty | 2011-2022 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX
- F-350 Super Duty | 2011-2022 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX
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Ford Spark Plug Part Number: AGSF-32W-MX
$5.73 MSRP: $8.87
You Save: $3.14 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AGSF-32W-, AGSF-32W-M, AGSF-32W-MF4, SP-433
Fits the following Ford Models:
- Escape | 2001-2006 | Limited, XLS, XLT, XLT No Boundaries, XLT Sport | 6 Cyl 3.0 L GAS
- Five Hundred | 2005-2007 | Limited, SE, SEL | 6 Cyl 3.0 L GAS
- Freestyle | 2005-2007 | Limited, SE, SEL | 6 Cyl 3.0 L GAS
- Fusion | 2006-2009 | SE, SEL | 6 Cyl 3.0 L GAS
- Taurus | 2000 | SE, SE Comfort, SEL, SVG | 6 Cyl 3.0 L GAS
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Ford Spark Plug Part Number: CGSF-12Y-PX
$11.75 MSRP: $18.18
You Save: $6.43 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CGSF-12Y-P, SP-536
Fits the following Ford Models:
- Mustang | 2013-2014 | Shelby GT500 | 8 Cyl 5.8 L GAS
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Ford Spark Plug Part Number: CYFS-12Y-PCTX
$11.48 MSRP: $17.76
You Save: $6.28 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CYFS-12Y-PC, CYFS-12Y-PCT, SP-527, SP-550, CYFS-12Y-2
Fits the following Ford Models:
- Bronco Sport | 2021-2023 | Badlands, Base, Big Bend, First Edition, Heritage Limited Edition, Outer Banks | 3 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
- Edge | 2013-2018 | Limited, SE, SEL, Titanium | 4 Cyl 2.0 L GAS
- Escape | 2013-2022 | S, SE, SEL, Titanium | 3 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
- Explorer | 2012-2019 | Base, Limited, XLT | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- F-150 | 2017-2020 | King Ranch, Lariat, Limited, Platinum, Police Responder, SSV, XL, XLT | 6 Cyl 3.5 L GAS
- Focus | 2013-2018 | RS, ST | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- Fusion | 2013-2020 | Platinum, SE, SEL, Titanium | 4 Cyl 2.0 L GAS
- Mustang | 2015-2023 | EcoBoost, EcoBoost Premium | 4 Cyl 2.3 L GAS
- Special Service Police Sedan | 2014-2018 | Base | 4 Cyl 2.0 L GAS
- Taurus | 2013-2017 | Limited, SE, SEL | 4 Cyl 2.0 L GAS
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Ford Spark Plug Part Number: AGSF-32Y-RAX
$7.93 MSRP: $12.27
You Save: $4.34 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AGSF-32Y-PC, AGSF-32Y-R, AGSF-32Y-RA, SP-541, SP-541-A, SP-448
Fits the following Ford Models:
- Escape | 2005-2008 | Hybrid, XLS, XLT, XLT No Boundaries | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
- Focus | 2008-2011 | S, SE, SEL, SES | 4 Cyl 2.0 L GAS
- Ranger | 2010-2011 | XL, XLT | 4 Cyl 2.3 L GAS
- Transit Connect | 2010-2013 | XL, XLT, XLT Premium | 4 Cyl 2.0 L GAS
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Ford Spark Plug Part Number: CYFS-12-YT4X
$11.64 MSRP: $18.02
You Save: $6.38 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CYFS-12-YT3, CYFS-12F-3, SP-580, CYFS-12-Y3, CYFS-12-YT4, SP-528, SP-512-A
Fits the following Ford Models:
- Expedition | 2015-2017 | EL King Ranch, EL Limited, EL Platinum, EL SSV, EL XL, EL XLT, King Ranch, Limited, Platinum, SSV, XL, XLT | 6 Cyl 3.5 L GAS
- Explorer | 2013-2019 | Platinum, Sport | 6 Cyl 3.5 L GAS
- F-150 | 2011-2016 | FX2, FX4, King Ranch, Lariat, Limited, Platinum, SSV, XL, XLT | 6 Cyl 3.5 L GAS
- Flex | 2010-2019 | Limited, SEL, Titanium | 6 Cyl 3.5 L GAS
- Police Interceptor Sedan | 2013-2019 | Base | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS
- Police Interceptor Utility | 2014-2019 | Base | 6 Cyl 3.5 L GAS
- Taurus | 2010-2019 | Limited, SE, SEL, SHO | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS
- Transit-150 | 2015-2023 | Base, PTV, XL, XLT | 6 Cyl 3.5 L GAS
- Transit-250 | 2015-2023 | Base, PTV | 6 Cyl 3.5 L GAS
- Transit-350 | 2015-2023 | Base, PTV, XL, XLT | 6 Cyl 3.5 L GAS
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Ford Spark Plug Part Number: AYFS-32Y-RX
$11.41 MSRP: $17.65
You Save: $6.24 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: AYFS-32Y-R, SP-490, SP-530, AYSF-32Y-PC
Fits the following Ford Models:
- C-Max | 2013-2018 | Energi SE, Energi SEL, Energi Titanium, Hybrid SE, Hybrid SEL, Hybrid Titanium | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Escape | 2009-2023 | Hybrid, Limited, Limited Hybrid, Platinum Hybrid, Plug-In Hybrid, S, SE, SE Hybrid, SE Plug-In Hybrid, SE Sport Hybrid, SEL Hybrid, SEL Plug-In Hybrid, ST-Line Elite Hybrid, ST-Line Hybrid, ST-Line Select Hybrid, Titanium Hybrid, Titanium Plug-In Hybrid, XLS, XLT | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
- Fusion | 2006-2020 | Energi Platinum, Energi SE, Energi Titanium, Hybrid, Platinum Hybrid, S, S Hybrid, SE, SE Hybrid, SEL, SEL Hybrid, Titanium Hybrid | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- Maverick | 2022-2023 | Lariat, XL, XLT | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
- Police Responder Hybrid | 2019-2020 | Base | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV)
- SSV Plug-In Hybrid | 2019-2020 | Base | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Transit Connect | 2014-2022 | Titanium, XL, XLT | 4 Cyl 2.5 L CNG, 4 Cyl 2.5 L GAS, 4 Cyl 2.5 L LPG
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Ford Spark Plug Part Number: AGSF-32F-MX
$5.41 MSRP: $8.36
You Save: $2.95 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: AGSF-32F-SM, AGSF-32F-M, SP-470-X, SP-470, SP-432, AGSF-32F-SMX, AWSF-32F-
Fits the following Ford Models:
- Crown Victoria | 1995-1997 | Base, LX, Police Interceptor, S | 8 Cyl 4.6 L CNG, 8 Cyl 4.6 L GAS
- Explorer | 1996-2001 | Eddie Bauer, Limited, XLS, XLT | 8 Cyl 5.0 L GAS
- F-150 | 1997-2000 | Base, Lariat, XL, XLT | 8 Cyl 4.6 L GAS
- F-250 | 1997-1999 | Base, Lariat, XL, XLT | 8 Cyl 4.6 L GAS
- Ranger | 1998-2003 | Edge, Splash, XL, XLT | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Taurus | 2000-2007 | LX, SE, SE Comfort, SEL, SES, SVG | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Windstar | 1999-2000 | 3.0L, Base, SE, SEL | 6 Cyl 3.0 L GAS
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1-20 of 50 Results

Ford Spark Plug Parts and Q&A

Spark Plug
AGSF-22F-MX
Q: How to inspect a spark plug for an abridged gap and identify potential issues on Ford Ranger?
A: Check the spark plug against gap problems due to oil or carbon build-up. Clean if necessary. Look at oil fouling (wet black deposits) and also carbon fouling (dry black deposits). Normal burning (light tan deposits) should be checked and preignition or excessive heating should be observed. Change spark plug when necessary.
Spark Plug
PZK-1F
Q: How to inspect a spark plug for issues such as bridged gaps, deposit buildup, oil fouling, carbon fouling, normal burning, preignition, overheating, and fused deposits on Ford Mustang?
A: Inspect the spark plug for bridged gaps and deposit buildup from oil or carbon fouling. Clean if necessary. Check for normal burning, preignition, overheating signs, and fused deposits. Address oil leaks and ensure proper ignition timing and fuel type to avoid damage, replacing the spark plug if needed.