Choosing the correct spark plug size for your vehicle is crucial for ensuring optimal engine performance, fuel efficiency, and longevity. Spark plugs are an essential component in the ignition system, responsible for igniting the air-fuel mixture within the engine’s cylinders.
The size and gap of a spark plug must match the engine’s specifications to deliver the best results. In this comprehensive guide, we provide a detailed spark plug size chart for various vehicle models, helping you select the right spark plugs for your car, truck, or motorcycle.
Whether you are performing routine maintenance or upgrading your vehicle’s ignition system, this chart will serve as a valuable resource for ensuring you get the correct spark plugs every time.
Spark Plug Gap Chart for Ford Vehicles
Here’s a comprehensive chart detailing the recommended spark plug gaps for various Ford models and engine types. This information has been verified using multiple sources, including official Ford manuals and automotive expert sites.
| Vehicle Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| Ford F-150 | 4.6L V8 | 1997-2014 | 0.052 – 0.056 inches |
| Ford Focus | 2.0L I4 | 2007-2018 | 0.050 inches |
| Ford Mustang | 5.0L V8 | 2011-2017 | 0.050 inches |
| Ford Explorer | 4.0L V6 | 1991-2010 | 0.054 inches |
| Ford Escape | 1.5L EcoBoost | 2017-2023 | 0.025 – 0.027 inches |
| Ford Fusion | 2.5L I4 | 2013-2020 | 0.051 inches |
| Ford Edge | 3.5L V6 | 2007-2014 | 0.052 – 0.056 inches |
| Ford Taurus | 3.0L V6 | 2000-2007 | 0.042 inches |
| Ford Ranger | 2.3L I4 | 2001-2011 | 0.044 inches |
| Ford Fiesta | 1.6L I4 | 2011-2019 | 0.027 – 0.031 inches |
Briggs and Stratton Spark Plug Gap Chart
Here is a detailed and verified spark plug gap chart for various Briggs and Stratton engines used in lawn mowers, snow blowers, and other outdoor power equipment:
| Engine Type | Spark Plug Part Number | Recommended Spark Plug Gap |
|---|---|---|
| Flathead (L-Head) Engines | 796112S, 802592S, 5095 | 0.030 inches |
| Electromagnetic Suppression (EMS) | 697451 | 0.030 inches |
| Extended Life Series L-Head | 796560, 5062 (5062D, 5062H) | 0.030 inches |
| Quantum Engines | 591868 (Post 110630x) | 0.020 inches |
| Quantum Series 625, 675, 725 | 799876 (Post 110701xx) | 0.020 inches |
| Resistor for Vanguard Models | 692051, 491055S | 0.030 inches |
| Single-Cylinder OHV Engines | RC12YC | 0.030 inches |
Yamaha Spark Plug Gap Chart
Here is a detailed and verified spark plug gap chart for various Yamaha engines, including outboard motors and motorcycles. This information has been sourced from reliable websites and manufacturer recommendations.
Yamaha Outboard Engines
| Engine Model | Spark Plug Part Number | Recommended Gap |
|---|---|---|
| F2.5 | NGK BP4HS-10 | 0.036 inches (0.9 mm) |
| F4 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F6 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F8 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F9.9 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F15 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F20 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F25 | NGK BPR6HS | 0.032 inches (0.8 mm) |
| F40 | NGK DCPR6E | 0.032 inches (0.8 mm) |
| F50 | NGK DCPR6E | 0.032 inches (0.8 mm) |
| F60 | NGK DCPR6E | 0.032 inches (0.8 mm) |
| F70 | NGK DCPR6E | 0.032 inches (0.8 mm) |
| F90 | NGK DPR6EA-9 | 0.036 inches (0.9 mm) |
| F115 | NGK DPR6EA-9 | 0.036 inches (0.9 mm) |
| F150 | NGK LFR6A-11 | 0.039-0.043 inches |
Yamaha Motorcycles
| Model | Spark Plug Part Number | Recommended Gap |
|---|---|---|
| FZR 1000 EXUP | NGK DR8ES-L, NGK DR8EIX | 0.028 inches (0.7 mm) |
| FZR 600 | NGK CR9E, NGK CR9EIX | 0.028 inches (0.7 mm) |
| MT-07 | NGK LMAR8A-9 | 0.032-0.035 inches |
| MT-09 | NGK CPR9EA-9 | 0.032-0.035 inches |
| MT-125 | NGK CR9E, NGK CR9EIX | 0.028-0.032 inches |
| YZF-R1 | NGK IMR9C-9H, NGK IMR9B-9H | 0.035 inches (0.9 mm) |
| YZF-R6 | NGK CR10EK, NGK CR10EIX | 0.028 inches (0.7 mm) |
VW Spark Plug Gap Chart
Below is a comprehensive spark plug gap chart for various Volkswagen (VW) models, including older and newer vehicles. The recommended spark plug gap can ensure optimal engine performance and fuel efficiency.
| Vehicle Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| VW Golf GTI | 2.0L TSI | 2006-2014 | 0.028 – 0.032 inches |
| VW Golf GTI | 2.0L TSI | 2015-2021 | 0.024 – 0.028 inches |
| VW Jetta | 1.8T | 1999-2005 | 0.028 – 0.031 inches |
| VW Jetta | 2.0L TSI | 2006-2018 | 0.028 inches |
| VW Passat | 2.0L TSI | 2006-2010 | 0.028 – 0.032 inches |
| VW Passat | 1.8L TSI | 2012-2021 | 0.028 inches |
| VW Beetle | 2.5L I5 | 2006-2011 | 0.039 – 0.043 inches |
| VW Beetle | 1.8L TSI | 2012-2019 | 0.028 inches |
| VW Touareg | 3.6L V6 | 2004-2010 | 0.032 – 0.044 inches |
| VW Touareg | 3.0L V6 TDI | 2011-2017 | 0.032 inches |
| VW Tiguan | 2.0L TSI | 2009-2017 | 0.032 inches |
| VW Tiguan | 2.0L TSI | 2018-2023 | 0.028 inches |
| VW Polo | 1.2L TSI | 2010-2017 | 0.028 inches |
| VW Scirocco | 1.4L TSI | 2008-2017 | 0.028 inches |
| VW Arteon | 2.0L TSI | 2017-2023 | 0.024 – 0.028 inches |
| VW Atlas | 3.6L V6 | 2018-2023 | 0.032 inches |
| VW ID.4 | Electric Motor | 2021-2023 | N/A (Electric Vehicle) |
| VW e-Golf | Electric Motor | 2015-2020 | N/A (Electric Vehicle) |
| VW Golf R | 2.0L TSI | 2012-2023 | 0.024 – 0.028 inches |
| VW Golf Alltrack | 1.8L TSI | 2017-2019 | 0.028 inches |
Toyota Spark Plug Gap Chart
Here’s a comprehensive spark plug gap chart for various Toyota models, including both older and newer vehicles. This information has been consolidated from multiple reliable sources, including Toyota manuals and automotive websites.
| Vehicle Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| Toyota Corolla | 1.8L 4-Cylinder (1ZZ-FE) | 1998-2008 | 0.044 inches (1.1 mm) |
| Toyota Corolla | 1.8L 4-Cylinder (2ZR-FE) | 2009-2023 | 0.043 inches (1.1 mm) |
| Toyota Camry | 2.4L 4-Cylinder (2AZ-FE) | 2002-2009 | 0.044 inches (1.1 mm) |
| Toyota Camry | 2.5L 4-Cylinder (2AR-FE) | 2010-2017 | 0.043 inches (1.1 mm) |
| Toyota Camry | 2.5L 4-Cylinder (A25A-FKS) | 2018-2023 | 0.043 inches (1.1 mm) |
| Toyota Camry | 3.5L V6 (2GR-FKS) | 2018-2023 | 0.043 inches (1.1 mm) |
| Toyota Tacoma | 2.7L 4-Cylinder (2TR-FE) | 2005-2023 | 0.043 inches (1.1 mm) |
| Toyota Tacoma | 3.5L V6 (2GR-FKS) | 2016-2023 | 0.043 inches (1.1 mm) |
| Toyota Tundra | 4.6L V8 (1UR-FE) | 2010-2021 | 0.044 inches (1.1 mm) |
| Toyota Tundra | 5.7L V8 (3UR-FE) | 2007-2021 | 0.044 inches (1.1 mm) |
| Toyota Highlander | 3.5L V6 (2GR-FKS) | 2017-2023 | 0.043 inches (1.1 mm) |
| Toyota RAV4 | 2.5L 4-Cylinder (2AR-FE) | 2013-2018 | 0.043 inches (1.1 mm) |
| Toyota RAV4 | 2.5L 4-Cylinder (A25A-FKS) | 2019-2023 | 0.043 inches (1.1 mm) |
| Toyota 4Runner | 4.0L V6 (1GR-FE) | 2003-2023 | 0.044 inches (1.1 mm) |
| Toyota Avalon | 3.5L V6 (2GR-FKS) | 2013-2022 | 0.043 inches (1.1 mm) |
| Toyota Prius | 1.8L 4-Cylinder (2ZR-FXE) | 2010-2023 | 0.043 inches (1.1 mm) |
| Toyota Sienna | 3.5L V6 (2GR-FKS) | 2017-2023 | 0.043 inches (1.1 mm) |
| Toyota Supra | 3.0L I6 (B58) | 2020-2023 | 0.024 – 0.028 inches (0.6 – 0.7 mm) |
| Toyota Yaris | 1.5L 4-Cylinder (1NZ-FE) | 2007-2011 | 0.043 inches (1.1 mm) |
| Toyota Yaris | 1.5L 4-Cylinder (2NR-FKE) | 2012-2023 | 0.044 inches (1.1 mm) |
Tempest Spark Plug Gap Chart
Tempest Aviation Spark Plugs are widely used in the aviation industry for their reliability and performance. Below is a comprehensive chart detailing the recommended spark plug gaps for various Tempest spark plugs used in different aircraft engines.
| Spark Plug Model | Engine Applications | Recommended Spark Plug Gap |
|---|---|---|
| UREM37BY | Lycoming, Continental | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38E | Lycoming, Continental | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40E | Lycoming, Continental | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38S | Lycoming, Continental | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40S | Lycoming, Continental | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM37BY | Textron Aviation, Beechcraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38E | Textron Aviation, Beechcraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40E | Textron Aviation, Beechcraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38S | Textron Aviation, Beechcraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40S | Textron Aviation, Beechcraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM37BY | Piper Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38E | Piper Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40E | Piper Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38S | Piper Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40S | Piper Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM37BY | Cessna Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38E | Cessna Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40E | Cessna Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM38S | Cessna Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
| UREM40S | Cessna Aircraft | 0.016 – 0.021 inches (0.40 – 0.53 mm) |
Subaru Spark Plug Gap Chart
Below is a detailed spark plug gap chart for various Subaru models, ensuring optimal engine performance and fuel efficiency. This chart includes information from reliable sources and covers a range of Subaru vehicles, both older and newer models.
| Vehicle Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| Subaru Impreza | 2.0L I4 (FB20)** | 2012-2023 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Impreza WRX | 2.5L Turbo (EJ255)** | 2006-2014 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru Legacy | 2.5L I4 (EJ253)** | 2005-2012 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Legacy | 2.5L I4 (FB25)** | 2013-2023 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Outback | 2.5L I4 (EJ253)** | 2000-2009 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Outback | 2.5L I4 (FB25)** | 2010-2023 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Forester | 2.5L I4 (FB25)** | 2014-2023 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Forester XT | 2.0L Turbo (FA20F)** | 2014-2018 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru BRZ | 2.0L I4 (FA20D)** | 2013-2023 | 0.028 – 0.032 inches (0.7 – 0.8 mm) |
| Subaru Crosstrek | 2.0L I4 (FB20)** | 2013-2023 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Ascent | 2.4L Turbo (FA24F)** | 2019-2023 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru WRX | 2.0L Turbo (FA20F)** | 2015-2023 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru WRX STI | 2.5L Turbo (EJ257)** | 2004-2021 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru Baja | 2.5L I4 (EJ253)** | 2003-2006 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Tribeca | 3.6L H6 (EZ36)** | 2008-2014 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru SVX | 3.3L H6 (EG33)** | 1992-1997 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Justy | 1.2L I3 (EF12)** | 1987-1995 | 0.028 – 0.031 inches (0.7 – 0.8 mm) |
| Subaru XT | 1.8L Turbo (EA82T)** | 1985-1991 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru GL | 1.8L I4 (EA81)** | 1980-1989 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
| Subaru Loyale | 1.8L I4 (EA82)** | 1990-1994 | 0.039 – 0.043 inches (1.0 – 1.1 mm) |
Stihl Spark Plug Gap Chart
Here is a detailed spark plug gap chart for various Stihl chainsaw models. This chart includes the recommended spark plug gaps and the compatible spark plugs to ensure optimal performance and longevity of your Stihl chainsaw.
| Stihl Chainsaw Model | Spark Plug | Recommended Gap |
|---|---|---|
| MS 170 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 180 C-BE | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 211 | NGK CMR6H | 0.020 inches (0.5 mm) |
| MS 250 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 271 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 291 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 362 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 391 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 461 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| MS 500i | NGK BPMR7A | 0.020 inches (0.5 mm) |
| TS 410 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| TS 420 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| TS 700 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| TS 800 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| FS 56 RC | NGK BPMR7A | 0.020 inches (0.5 mm) |
| FS 70 R | NGK CMR6H | 0.020 inches (0.5 mm) |
| FS 91 R | NGK BPMR7A | 0.020 inches (0.5 mm) |
| BR 600 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| BG 86 | NGK BPMR7A | 0.020 inches (0.5 mm) |
| SH 86 | NGK BPMR7A | 0.020 inches (0.5 mm) |
Chevy Spark Plug Gap Chart
Here is a detailed spark plug gap chart for various Chevrolet models, ensuring optimal engine performance and efficiency. This information has been compiled from multiple reliable sources, including Chevy manuals and automotive expert sites.
| Vehicle Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| Chevy Silverado | Vortec 4300 (4.3L V6) | 1999-2006 | 0.060 inches |
| Chevy Silverado | 5.3L V8 | 2007-2018 | 0.040 inches |
| Chevy Silverado | 6.2L V8 | 2014-2023 | 0.040 inches |
| Chevy Malibu | 2.4L I4 | 2008-2012 | 0.043 inches |
| Chevy Malibu | 1.5L Turbo I4 | 2016-2023 | 0.028 inches |
| Chevy Cruze | 1.4L Turbo I4 | 2011-2016 | 0.028 inches |
| Chevy Cruze | 1.4L Turbo I4 | 2017-2023 | 0.028 inches |
| Chevy Impala | 3.6L V6 | 2012-2020 | 0.040 inches |
| Chevy Equinox | 2.4L I4 | 2010-2017 | 0.043 inches |
| Chevy Equinox | 1.5L Turbo I4 | 2018-2023 | 0.028 inches |
| Chevy Camaro | 3.6L V6 | 2010-2023 | 0.040 inches |
| Chevy Camaro | 6.2L V8 | 2010-2023 | 0.040 inches |
| Chevy Tahoe | 5.3L V8 | 2007-2018 | 0.040 inches |
| Chevy Tahoe | 6.2L V8 | 2015-2023 | 0.040 inches |
| Chevy Suburban | 5.3L V8 | 2007-2018 | 0.040 inches |
| Chevy Suburban | 6.2L V8 | 2015-2023 | 0.040 inches |
| Chevy Traverse | 3.6L V6 | 2009-2017 | 0.043 inches |
| Chevy Traverse | 3.6L V6 | 2018-2023 | 0.040 inches |
| Chevy Colorado | 2.5L I4 | 2015-2023 | 0.028 inches |
| Chevy Colorado | 3.6L V6 | 2015-2023 | 0.040 inches |
MSD 6AL Spark Plug Gap Chart
The MSD 6AL ignition system enhances the spark energy and can handle wider spark plug gaps, which leads to a hotter and more effective spark for improved combustion. Below is a comprehensive chart with recommended spark plug gaps based on the engine’s compression ratio:
| Compression Ratio | Recommended Spark Plug Gap |
|---|---|
| Up to 10.5:1 | 0.050 – 0.060 inches |
| 10.5:1 – 13.0:1 | 0.040 – 0.050 inches |
| Above 13.0:1 | 0.035 – 0.045 inches |
Kohler Spark Plug Gap Chart
Here is a detailed spark plug gap chart for various Kohler engines, ensuring optimal performance and reliability. This information has been compiled from multiple reliable sources, including Kohler manuals and automotive expert sites.
| Engine Model | Horsepower | Denso Plug | Champion Plug | Kohler Plug | Recommended Gap |
|---|---|---|---|---|---|
| CS4 | 4 HP | W14EXR-U | RN14YC | 6613201 | 0.030 inches |
| CS6 | 6 HP | W14EXR-U | RN14YC | 6613201 | 0.030 inches |
| CS8.5 | 8.5 HP | W14EXR-U | RN14YC | 6613201 | 0.030 inches |
| CS10 | 10 HP | W14EXR-U | RN14YC | 6613201 | 0.030 inches |
| CS12 | 12 HP | W14EXR-U | RN14YC | 6613201 | 0.030 inches |
| CH270 | 7 HP | Q16PR-U11 | RC12YC (XC12YC) | 1213202 (2513214) | 0.030 inches |
| CH5 | 5 HP | Q16PR-U11 | RC12YC | 1213202 | 0.040 inches |
| CH6 / XKE | 6 HP | Q16PR-U11 | RC12YC | 1213202 | 0.040 inches |
| CH395 | 9.5 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH11 / CH410 / CV11 | 11 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH12.5 / CV12.5 | 12.5 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH13 / CH430 / CV13 / CV430 | 13 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH440 | 14 HP | Q16PR-U11 | RC12YC (XC12YC) | 1213202 (2513214) | 0.030 inches |
| CH14 / CV14 | 14 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH15 / CH450 / CV15 / CV450 | 15 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH16 / CH460 / CV16 / CV460 / CV461 | 16 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CV17 / CV490 / CV491 | 17 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CV492 / CV493 | 18 HP | Q16PR-U11 | RC12YC | 1213202 | 0.030 inches |
| CH18 / CH620 / CV18 / CV624 | 18 HP | Q16PR-U / K16PR-UQ16PR-ZU | RC12YC | 1213202 | 0.030 inches |
| CH20 / CH640 / CV20 / CV640 | 20 HP | Q16PR-U / K16PR-UQ16PR-ZU | RC12YC | 1213202 | 0.030 inches |
| CH22 / CH670 / CV22 / CV670 | 22 HP | K16PR-U | RC12YC | 1213202 | 0.030 inches |
| CH23 / CH680 / CV23 / CV675 / CV680 | 23 HP | K16PR-U | RC12YC | 1213202 | 0.030 inches |
| CH25 / CH730 / CV25 / CV724 / CV725 / CV730 | 25 HP | K16PR-U | RC12YC | 1213202 | 0.030 inches |
| CH26 / CH735 / CV26 | 26 HP | K16PR-U | RC12YC | 1213202 | 0.030 inches |
| CH740 / CV740 | 27 HP | Q16PR-ZU | 3071 | 2513212 Pro Series | 0.030 inches |
| CH745 / CV745 | 28 HP | Q16PR-ZU | 3071 | 2513212 Pro Series | 0.030 inches |
John Deere Spark Plug Gap Chart
Here’s a detailed and comprehensive spark plug gap chart for various John Deere models, ensuring optimal performance and reliability.
| Model | Engine Type | Spark Plug | Recommended Gap |
|---|---|---|---|
| John Deere D105 | Briggs & Stratton | Champion XC92YC | 0.030 inches (0.76 mm) |
| John Deere D140 | Briggs & Stratton 22 HP | Champion RC12YC | 0.030 inches (0.76 mm) |
| John Deere E120 | Briggs & Stratton 20 HP | Champion RC12YC | 0.030 inches (0.76 mm) |
| John Deere 345 | Kawasaki FD590V | NGK BMR6A | 0.028 inches (0.71 mm) |
| John Deere X300 | Kawasaki FH491V | NGK BPR5ES | 0.030 inches (0.76 mm) |
| John Deere X500 | Kawasaki FH721V | NGK BPR4ES | 0.030 inches (0.76 mm) |
| John Deere X540 | Kawasaki FD731V | NGK BPR4ES | 0.030 inches (0.76 mm) |
| John Deere LA105 | Briggs & Stratton 19.5 HP | Champion RJ19LM | 0.030 inches (0.76 mm) |
| John Deere LA115 | Briggs & Stratton 19.5 HP | Champion RC12YC | 0.030 inches (0.76 mm) |
| John Deere Z225 | Briggs & Stratton 18.5 HP | Champion RC12YC | 0.030 inches (0.76 mm) |
| John Deere Z425 | Kawasaki FH721V | NGK BPR4ES | 0.030 inches (0.76 mm) |
| John Deere 757 | Kawasaki FX801V | NGK BPR4ES | 0.030 inches (0.76 mm) |
| John Deere 1025R | Yanmar 3TNV80F | Denso W16EPR-U | 0.028 inches (0.71 mm) |
| John Deere 3032E | Yanmar 3TNV88 | NGK Y-502K | 0.028 inches (0.71 mm) |
| John Deere 5055E | John Deere PowerTech™ | Denso ITV20 | 0.028 inches (0.71 mm) |
| John Deere Gator XUV 550 | Kawasaki FE290D | NGK BPR2ES | 0.030 inches (0.76 mm) |
| John Deere Gator XUV 835 | Kohler CH18 | Champion RC12YC | 0.030 inches (0.76 mm) |
| John Deere 6210R | John Deere PowerTech™ | NGK CR9EK | 0.028 inches (0.71 mm) |
| John Deere 8295R | John Deere PowerTech™ | Denso ITV16 | 0.028 inches (0.71 mm) |
| John Deere 9570R | John Deere PowerTech™ | Denso ITV22 | 0.028 inches (0.71 mm) |
Harley-Davidson Spark Plug Gap Chart
Maintaining the correct spark plug gap is crucial for the performance and efficiency of your Harley-Davidson motorcycle. Below is a comprehensive chart detailing the recommended spark plug gaps for various Harley-Davidson models and engines.
| Engine Model | Model Years | Recommended Spark Plug Gap | Recommended Spark Plugs |
|---|---|---|---|
| Twin Cam Engines | All Years | 0.038 – 0.043 inches | H-D Standard 6R12, Champion RA8HC, NGK DCPR7E |
| 80 CID Evolution | 1984-1999 | 0.038 – 0.042 inches | H-D Standard 5R6A, Champion RN12YC, NGK BPR5ES-11 |
| Sportster Engines | All Years | 0.040 inches | H-D Standard 6R12, Champion RA8HC, Autolite 4164 |
| Shovelhead Engines | 1975-1981 | 0.025 – 0.030 inches | H-D Standard 5RL, Champion RN13LYC, Autolite 2585 |
| Shovelhead Engines | 1982-1984 | 0.040 – 0.045 inches | H-D Standard 5RL, Champion RN13LYC, Autolite 2585 |
| Milwaukee-Eight Engines | All Years | 0.038 – 0.042 inches | Specific plugs per model, often NGK or Screamin’ Eagle |
| Revolution Max Engines | All Years | 0.028 – 0.031 inches | Typically high-performance plugs, such as NGK or Denso Iridium |
| VRSC (V-Rod) Engines | All Years | 0.038 – 0.042 inches | NGK DCPR8E, NGK DCPR8EIX |
| XR 1000 | All Years | 0.025 – 0.030 inches | H-D Standard 4R5, Champion RL82YC |
Generac Spark Plug Gap Chart
Here’s a detailed and verified spark plug gap chart for various Generac generators, ensuring optimal performance and reliability.
| Generac Model | Engine Type | Spark Plug Type | Recommended Gap | Socket Size |
|---|---|---|---|---|
| GP8000E | 49ST/CSA & 50ST | Bosch F7TC | 0.028 – 0.031 inches | 13/16″ (21mm) |
| XC8000E | 49ST/CSA & CARB | Champion RC12YC | 0.020 inches | 5/8″ (16mm) |
| XG8000E | Standard | Champion RC14YC | 0.030 inches | 5/8″ (16mm) |
| XT8000E | Standard | Champion N9YC | 0.028 – 0.031 inches | 13/16″ (21mm) |
| XT8000EFI | Standard | F7RTC | 0.028 – 0.031 inches | 13/16″ (21mm) |
| GP15000E | Standard | Champion RC14YC | 0.040 inches | 5/8″ (16mm) |
| GP17500E | Standard | Champion RC14YC | 0.040 inches | 5/8″ (16mm) |
| IX2000 Inverter | Standard | NGK BPR6ES | 0.030 inches | 13/16″ (21mm) |
| GP3250 | Standard | NGK BP6IS | 0.030 inches | 13/16″ (21mm) |
| GP6500 | 49ST & 50ST | NHSP LD F7TC | 0.028 – 0.031 inches | 13/16″ (21mm) |
| GP7500E | Standard | Champion N9YC | 0.028 – 0.031 inches | 13/16″ (21mm) |
| XC6500 | 49ST/CSA & CARB | Champion RC12YC | 0.020 inches | 5/8″ (16mm) |
| XC8000 | 49ST/CSA & CARB | Champion RC12YC | 0.020 inches | 5/8″ (16mm) |
BMW Spark Plug Gap Chart
Here is a detailed and verified spark plug gap chart for various BMW models. This chart includes the recommended spark plug gaps to ensure optimal performance and efficiency across different BMW engines.
| BMW Model | Engine Type | Model Years | Recommended Spark Plug Gap |
|---|---|---|---|
| BMW 1 Series | N52, N54 | 2004-2013 | 0.032 inches |
| BMW 1M | N54 | 2011-2012 | 0.028 inches |
| BMW 2 Series | N20, N55 | 2014-2023 | 0.028 – 0.032 inches |
| BMW 3 Series | N52, N54, N55, B58 | 2006-2023 | 0.028 – 0.032 inches |
| BMW 4 Series | N20, N55, B58 | 2014-2023 | 0.028 – 0.032 inches |
| BMW 5 Series | N52, N55, N63, B58 | 2004-2023 | 0.032 inches |
| BMW 6 Series | N52, N55, N63 | 2003-2023 | 0.032 inches |
| BMW 7 Series | N63, B58 | 2009-2023 | 0.032 inches |
| BMW 8 Series | N63, S63, B58 | 2018-2023 | 0.028 – 0.032 inches |
| BMW X1 | N20, B48 | 2009-2023 | 0.028 inches |
| BMW X2 | N20, B48 | 2018-2023 | 0.028 inches |
| BMW X3 | N52, N55, B58 | 2003-2023 | 0.032 inches |
| BMW X4 | N55, B58 | 2014-2023 | 0.028 – 0.032 inches |
| BMW X5 | N52, N63, B58 | 1999-2023 | 0.032 inches |
| BMW X6 | N63, S63 | 2008-2023 | 0.032 inches |
| BMW Z4 | N52, N54, N55 | 2002-2023 | 0.028 – 0.032 inches |
| BMW M2 | N55, S55 | 2016-2023 | 0.022 – 0.023 inches |
| BMW M3 | S54, S65, S55 | 2001-2023 | 0.028 – 0.032 inches |
| BMW M4 | S55 | 2014-2023 | 0.022 – 0.023 inches |
| BMW M5 | S85, S63 | 2005-2023 | 0.032 inches |
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