Bosch 9774 Spark Plug
OE Quality 60-Day Returns
Bosch
 OE Fine Wire Iridium

Bosch 9774 Spark Plug

Brand Bosch 9774
Resistance 6000
Ground Electrode Tip Design Standard
Ground Configuration J-gap
Ground Electrode Core Material Nickel
Electrical Terminal Type Non-removable nut
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium
Pre-Gap Size .8
Ground Electrode Quantity 1
Hex Size 16
Manufacturer Heat Range 7
Seat Type Tapered
Reach 25
Insulator Material Ceramic
Resistor Type Yes
Ground Electrode Tip Material Nickel
Hex Type Hex
Center Electrode Design Fine wire
9746 No
Automotive Item Weight (lbs) 0.112436 lb
Insulator Type Projected
Outdoor Power Equipment Application No
Package Contents Spark plug
Package Quantity 1
Product Length 3.275591 in
Product Width 0.712598 in
Resistor Yes
Short Style No
Spark Plug Type 4-cycle
Thread Diameter (Spark Plug) 14 mm
Product line OE Fine Wire Iridium
Fits Ford and Lincoln · 151 vehicles

OE fine-wire iridium. Delivers OE spark plug technology with long service life.

Iridium center electrode. Ultra-fine wire design promotes strong, consistent firing.

Tapered seat design. Helps ensure a precise, secure spark plug fit.

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Bosch OE Fine Wire Iridium Spark Plug

Bosch 9774 is an OE Fine Wire Iridium spark plug built for modern Ford and Lincoln engines that call for precise ignition performance and long service life. The fine-wire iridium center electrode, copper core, and resistor design support consistent spark delivery in demanding daily driving and highway use.

The Bosch OE Fine Wire Iridium line focuses on original-equipment style ignition performance with materials selected for stable firing and durability. For drivers servicing a Ford F-150, Ford Explorer, or Lincoln MKZ, Bosch 9774 provides a direct spark plug solution matched to OE-style specifications.

Key Features

  • Part number 9774 from Bosch OE Fine Wire Iridium
  • Iridium center electrode tip with fine-wire design for precise firing
  • Copper center electrode core and nickel ground electrode core
  • Resistor spark plug with 6000 resistance
  • Tapered seat, projected insulator, and 14 mm thread diameter
  • Pre-gapped at .8 for OE-style service applications
  • Standard J-gap ground configuration with one ground electrode
  • Compatible with 4-cycle gasoline engine ignition systems

Detailed Description

Bosch 9774 is engineered as an OE-style iridium spark plug for a wide range of Ford and Lincoln vehicles, including the Ford Transit-150, Transit-250, Transit-350, Transit-350 HD, Escape, Explorer, Flex, Taurus, Expedition, F-150, Focus, Fusion, and Lincoln MKC, MKT, MKZ, Navigator, and MKS. The ultra-fine iridium firing pin is paired with a copper core center electrode and nickel ground electrode materials to support stable ignition performance and long wear characteristics. With a tapered seat, projected insulator, and 16 mm hex, this spark plug is built around common OE service dimensions. This part number 9774 is a practical choice for maintenance on Ford F-150 and Ford Explorer applications where OE-style ignition components are specified.

This part cross-references 9746 for the same application.

What It Helps Address

  • Rough idle caused by worn spark plug electrodes
  • Hard starting from weak or inconsistent spark output
  • Misfire conditions related to ignition wear
  • Reduced throttle response from degraded plug performance
  • Service intervals that call for OE-style iridium replacement

Installation Notes and Tips

Verify engine application by year, make, and model before installation. Confirm the tapered seat, 14 mm thread diameter, 25 mm reach, and .8 pre-gap match the vehicle specification. Use proper spark plug service procedures, including careful thread engagement and torque to the manufacturer specification. Inspect ignition coils and plug wells during service to avoid repeat misfire concerns.

Quality Assurance

Bosch designs the OE Fine Wire Iridium line around OE spark plug technology, using iridium at the firing tip for durability and consistent ignition performance in service applications.

  • Fits 2015-2021 Ford Transit-150, N/A
  • Fits 2023-2026 Ford Transit-150, N/A
  • Fits 2015-2021 Ford Transit-250, N/A
  • Fits 2023-2026 Ford Transit-250, N/A
  • Fits 2015-2021 Ford Transit-350, N/A
  • Fits 2023-2026 Ford Transit-350, N/A
  • Fits 2015-2021 Ford Transit-350 HD, N/A
  • Fits 2023-2026 Ford Transit-350 HD, N/A
  • Fits 2013-2019 Ford Escape, N/A
  • Fits 2012-2019 Ford Explorer, N/A
  • Fits 2010-2019 Ford Flex, N/A
  • Fits 2010-2019 Ford Taurus, N/A
  • Fits 2015-2019 Lincoln MKC, N/A
  • Fits 2010-2019 Lincoln MKT, N/A
  • Fits 2013-2019 Lincoln MKZ, N/A
  • Fits 2015-2018 Ford Expedition, N/A
  • Fits 2011-2018 Ford F-150, N/A
  • Fits 2016-2018 Ford Focus, N/A
  • Fits 2013-2018 Ford Fusion, N/A
  • Fits 2015-2018 Lincoln Navigator, N/A
  • Fits 2010-2016 Lincoln MKS, N/A

Related reading

This part fits 151 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersFuel TypeNotes
2026FordTransit-150—3.5LV6—OE Fine Wire Iridium
2026FordTransit-250—3.5LV6—OE Fine Wire Iridium
2026FordTransit-350—3.5LV6—OE Fine Wire Iridium
2026FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2025FordTransit-150—3.5LV6—OE Fine Wire Iridium
2025FordTransit-250—3.5LV6—OE Fine Wire Iridium
2025FordTransit-350—3.5LV6—OE Fine Wire Iridium
2025FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2024FordTransit-150—3.5LV6—OE Fine Wire Iridium
2024FordTransit-250—3.5LV6—OE Fine Wire Iridium
2024FordTransit-350—3.5LV6—OE Fine Wire Iridium
2024FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2023FordTransit-150—3.5LV6—OE Fine Wire Iridium
2023FordTransit-250—3.5LV6—OE Fine Wire Iridium
2023FordTransit-350—3.5LV6—OE Fine Wire Iridium
2023FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2021FordTransit-150—3.5LV6GASOE Fine Wire Iridium
2021FordTransit-250—3.5LV6GASOE Fine Wire Iridium
2021FordTransit-350—3.5LV6GASOE Fine Wire Iridium
2021FordTransit-350 HD—3.5LV6GASOE Fine Wire Iridium
2020FordTransit-150—3.5LV6GASOE Fine Wire Iridium
2020FordTransit-250—3.5LV6GASOE Fine Wire Iridium
2020FordTransit-350—3.5LV6GASOE Fine Wire Iridium
2020FordTransit-350 HD—3.5LV6GASOE Fine Wire Iridium
2019FordEscape—2.0LL4—OE Fine Wire Iridium
2019FordExplorer—3.5LV6—OE Fine Wire Iridium
2019FordFlex—3.5LV6—OE Fine Wire Iridium
2019FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2019FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2019FordTaurus—3.5LV6—OE Fine Wire Iridium
2019FordTransit-150—3.5LV6—OE Fine Wire Iridium
2019FordTransit-250—3.5LV6—OE Fine Wire Iridium
2019FordTransit-350—3.5LV6—OE Fine Wire Iridium
2019FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2019LincolnMKC—2.0LL4—OE Fine Wire Iridium
2019LincolnMKT—3.5LV6—OE Fine Wire Iridium
2019LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2018FordEscape—2.0LL4—OE Fine Wire Iridium
2018FordExpedition—3.5LV6—OE Fine Wire Iridium
2018FordExplorer—3.5LV6—OE Fine Wire Iridium
2018FordF-150RWD3.5LV6—OE Fine Wire Iridium
2018FordFlex—3.5LV6—OE Fine Wire Iridium
2018FordFocus—2.0LL4—OE Fine Wire Iridium
2018FordFusion—2.0LL4GASOE Fine Wire Iridium
2018FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2018FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2018FordSpecial Service Police Sedan—2.0LL4—OE Fine Wire Iridium
2018FordTaurus—3.5LV6—OE Fine Wire Iridium
2018FordTransit-150—3.5LV6—OE Fine Wire Iridium
2018FordTransit-250—3.5LV6—OE Fine Wire Iridium
2018FordTransit-350—3.5LV6—OE Fine Wire Iridium
2018FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2018LincolnMKC—2.0LL4—OE Fine Wire Iridium
2018LincolnMKT—3.5LV6—OE Fine Wire Iridium
2018LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2018LincolnNavigator—3.5LV6—OE Fine Wire Iridium
2017FordEscape—2.0LL4—OE Fine Wire Iridium
2017FordExpedition—3.5LV6—OE Fine Wire Iridium
2017FordExplorer—3.5LV6—OE Fine Wire Iridium
2017FordF-150—3.5LV6GASOE Fine Wire Iridium
2017FordFlex—3.5LV6—OE Fine Wire Iridium
2017FordFocus—2.0LL4—OE Fine Wire Iridium
2017FordFusion—2.0LL4GASOE Fine Wire Iridium
2017FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2017FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2017FordSpecial Service Police Sedan—2.0LL4—OE Fine Wire Iridium
2017FordTaurus—3.5LV6—OE Fine Wire Iridium
2017FordTransit-150—3.5LV6—OE Fine Wire Iridium
2017FordTransit-250—3.5LV6—OE Fine Wire Iridium
2017FordTransit-350—3.5LV6—OE Fine Wire Iridium
2017FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2017LincolnMKC—2.0LL4—OE Fine Wire Iridium
2017LincolnMKT—3.5LV6—OE Fine Wire Iridium
2017LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2017LincolnNavigator—3.5LV6—OE Fine Wire Iridium
2016FordEscape—2.0LL4—OE Fine Wire Iridium
2016FordExpedition—3.5LV6—OE Fine Wire Iridium
2016FordExplorer—3.5LV6—OE Fine Wire Iridium
2016FordF-150—3.5LV6GASOE Fine Wire Iridium
2016FordFlex—3.5LV6—OE Fine Wire Iridium
2016FordFocus—2.0LL4—OE Fine Wire Iridium
2016FordFusion—2.0LL4GASOE Fine Wire Iridium
2016FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2016FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2016FordSpecial Service Police Sedan—2.0LL4—OE Fine Wire Iridium
2016FordTaurus—3.5LV6—OE Fine Wire Iridium
2016FordTransit-150—3.5LV6—OE Fine Wire Iridium
2016FordTransit-250—3.5LV6—OE Fine Wire Iridium
2016FordTransit-350—3.5LV6—OE Fine Wire Iridium
2016FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2016LincolnMKC—2.0LL4—OE Fine Wire Iridium
2016LincolnMKS—3.5LV6—OE Fine Wire Iridium
2016LincolnMKT—3.5LV6—OE Fine Wire Iridium
2016LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2016LincolnNavigator—3.5LV6—OE Fine Wire Iridium
2015FordEscape—2.0LL4—OE Fine Wire Iridium
2015FordExpedition—3.5LV6—OE Fine Wire Iridium
2015FordExplorer—3.5LV6—OE Fine Wire Iridium
2015FordF-150—3.5LV6GASOE Fine Wire Iridium
2015FordFlex—3.5LV6—OE Fine Wire Iridium
2015FordFusion—2.0LL4GASOE Fine Wire Iridium
2015FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2015FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2015FordSpecial Service Police Sedan—2.0LL4—OE Fine Wire Iridium
2015FordTaurus—3.5LV6—OE Fine Wire Iridium
2015FordTransit-150—3.5LV6—OE Fine Wire Iridium
2015FordTransit-250—3.5LV6—OE Fine Wire Iridium
2015FordTransit-350—3.5LV6—OE Fine Wire Iridium
2015FordTransit-350 HD—3.5LV6—OE Fine Wire Iridium
2015LincolnMKC—2.0LL4—OE Fine Wire Iridium
2015LincolnMKS—3.5LV6—OE Fine Wire Iridium
2015LincolnMKT—3.5LV6—OE Fine Wire Iridium
2015LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2015LincolnNavigator—3.5LV6—OE Fine Wire Iridium
2014FordEscape—2.0LL4—OE Fine Wire Iridium
2014FordExplorer—3.5LV6—OE Fine Wire Iridium
2014FordF-150—3.5LV6—OE Fine Wire Iridium
2014FordFlex—3.5LV6—OE Fine Wire Iridium
2014FordFusion—2.0LL4GASOE Fine Wire Iridium
2014FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2014FordPolice Interceptor Utility—3.5LV6—OE Fine Wire Iridium
2014FordSpecial Service Police Sedan—2.0LL4—OE Fine Wire Iridium
2014FordTaurus—3.5LV6—OE Fine Wire Iridium
2014LincolnMKS—3.5LV6—OE Fine Wire Iridium
2014LincolnMKT—3.5LV6—OE Fine Wire Iridium
2014LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2013FordEscape—2.0LL4—OE Fine Wire Iridium
2013FordExplorer—3.5LV6—OE Fine Wire Iridium
2013FordF-150—3.5LV6—OE Fine Wire Iridium
2013FordFlex—3.5LV6—OE Fine Wire Iridium
2013FordFusion—2.0LL4GASOE Fine Wire Iridium
2013FordPolice Interceptor Sedan—3.5LV6—OE Fine Wire Iridium
2013FordTaurus—3.5LV6—OE Fine Wire Iridium
2013LincolnMKS—3.5LV6—OE Fine Wire Iridium
2013LincolnMKT—3.5LV6—OE Fine Wire Iridium
2013LincolnMKZ—2.0LL4GASOE Fine Wire Iridium
2012FordExplorer—2.0LL4—OE Fine Wire Iridium
2012FordF-150—3.5LV6—OE Fine Wire Iridium
2012FordFlex—3.5LV6—OE Fine Wire Iridium
2012FordTaurus—3.5LV6—OE Fine Wire Iridium
2012LincolnMKS—3.5LV6—OE Fine Wire Iridium
2012LincolnMKT—3.5LV6—OE Fine Wire Iridium
2011FordF-150—3.5LV6—OE Fine Wire Iridium
2011FordFlex—3.5LV6—OE Fine Wire Iridium
2011FordTaurus—3.5LV6—OE Fine Wire Iridium
2011LincolnMKS—3.5LV6—OE Fine Wire Iridium
2011LincolnMKT—3.5LV6—OE Fine Wire Iridium
2010FordFlex—3.5LV6—OE Fine Wire Iridium
2010FordTaurus—3.5LV6—OE Fine Wire Iridium
2010LincolnMKS—3.5LV6—OE Fine Wire Iridium
2010LincolnMKT—3.5LV6—OE Fine Wire Iridium