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Replacement and OEM Parts for 1991 Mercury Grand Marquis Spark Plug

1991 Mercury Grand Marquis Spark Plug

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1991 Mercury Grand Marquis
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Spark Plugs & Wires
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8 Products found

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  • Denso Iridium TT™ Spark Plug for 1991 Mercury Grand Marquis - 4713

    Denso® Iridium TT™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: 4713
    Product Specifications
    • Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
    • Electrode Material: Iridium
    • Gap: .039" (1.0 mm)
    • Heat Range: 16
    • Hex Size: 5/8" (16 mm)
    • Nominal Gap: 1 mm
    • Overall Height: JIS
    • Reach: 18.00 mm
    • Seat Type: Tapered
    • Terminal Type: Solid
    • Thread Diameter: 14.00 mm
    • Thread Pitch: 1.25 mm
    • UPC: 042511047136
    • Part Description: 1991 Mercury Grand Marquis Iridium TT™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
    $6.61
  • Denso Iridium Power™ Spark Plug for 1991 Mercury Grand Marquis - 5325

    Denso® Iridium Power™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: 5325
    Product Specifications
    • Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
    • Electrode Material: Iridium
    • Gap: .043" (1.1 mm)
    • Heat Range: 16
    • Hex Size: 5/8" (16 mm)
    • Nominal Gap: 1.1 mm
    • OE Part Number: IT16
    • Overall Height: JIS
    • Reach: 18.00 mm
    • Seat Type: Tapered
    • Terminal Type: Solid
    • Thread Diameter: 14.00 mm
    • Thread Pitch: 1.25 mm
    • UPC: 042511053250
    • Part Description: 1991 Mercury Grand Marquis Iridium Power™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
    $5.96
  • Denso Platinum TT™ Spark Plug for 1991 Mercury Grand Marquis - 4511

    Denso® Platinum TT™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: 4511
    Product Specifications
    • Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
    • Electrode Material: Platinum
    • Gap: .039" (1.0 mm)
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
    • Heat Range: 16
    • Hex Size: 5/8" (16 mm)
    • Material: Nickel
    • Nominal Gap: 1 mm
    • Overall Height: JIS
    • Reach: 17.5 mm (.689")
    • Seat Type: Tapered
    • Spark Plug Reach: 18 mm
    • Terminal Type: Solid
    • Thread Diameter: 14 mm
    • Thread Pitch: 1.25 mm
    • UPC: 042511045118
    • Wrench Diameter: 16 mm
    • Part Description: 1991 Mercury Grand Marquis Platinum TT™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
    $3.32
  • Denso Original U-Groove Nickel Spark Plug for 1991 Mercury Grand Marquis - 5047

    Denso® Original U-Groove Nickel Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: 5047
    Product Specifications
    • Notes: Gap 0.044; OE Recommended Resistor Plug w/Patented U-Groove Design
    • Center Electrode Core Material: Copper
    • Center Electrode Material: Nickel
    • Gap: 0.044"
    • Ground Configuration: Standard
    • Ground Electrode Core Material: Nickel
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: U-Groove
    • Heat Range: 16
    • Hex Size: 16 mm
    • Resistance: 5 kOhm
    • Spark Plug Seat Style: Tapered
    • Thread Diameter: 0.551"
    • Thread Reach: 0.709"
    • UPC: 042511050471
    • Part Description: 1991 Mercury Grand Marquis Original U-Groove Nickel Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
    $1.84
  • Denso Iridium Tt™ Spark Plug for 1991 Mercury Grand Marquis - IT16

    Denso® Iridium Tt™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: IT16
    Product Specifications
    • Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
    • Center Electrode Core Material: Copper
    • Center Electrode Tip Material: Iridium Rhodium Alloy
    • Ground Configuration: Standard
    • Ground Electrode Core Material: Nickel
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: Tapercut, U-Groove
    • Hex Size: 16.0
    • Manufacturer Heat Range: 16
    • Pre-Gap Size: 0.044
    • Reach: 18.00
    • Resistance: 5000
    • Seat Type: Tapered
    • UPC: 042511053250
    • Part Description: 1991 Mercury Grand Marquis Iridium Tt™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
  • Denso Iridium Tt™ Spark Plug for 1991 Mercury Grand Marquis - IT16TT

    Denso® Iridium Tt™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: IT16TT
    Product Specifications
    • Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
    • Center Electrode Core Material: Copper
    • Center Electrode Tip Material: Iridium Rhodium Alloy
    • Ground Configuration: Twin-Tip
    • Ground Electrode Core Material: Nickel
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: Platinum Twin-Tip
    • Hex Size: 16.0
    • Manufacturer Heat Range: 16
    • Pre-Gap Size: 0.040
    • Reach: 18.00
    • Resistance: 5000
    • Seat Type: Tapered
    • UPC: 042511047136
    • Part Description: 1991 Mercury Grand Marquis Iridium Tt™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
  • Denso Platinum Tt™ Spark Plug for 1991 Mercury Grand Marquis - PT16TT

    Denso® Platinum Tt™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: PT16TT
    Product Specifications
    • Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
    • Center Electrode Core Material: Copper
    • Center Electrode Tip Material: Platinum
    • Ground Configuration: Twin-Tip
    • Ground Electrode Core Material: Nickel
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
    • Hex Size: 16.0
    • Manufacturer Heat Range: 16
    • Pre-Gap Size: 0.040
    • Reach: 18.00
    • Resistance: 5000
    • Seat Type: Tapered
    • UPC: 042511045118
    • Part Description: 1991 Mercury Grand Marquis Platinum Tt™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L
  • Denso Original U-Groove™ Spark Plug for 1991 Mercury Grand Marquis - T16NR-U11

    Denso® Original U-Groove™ Spark Plug for 1991 Mercury Grand Marquis

    PartNumber: T16NR-U11
    Product Specifications
    • Notes: Gap 0.044; OE Recommended Resistor Plug w/Patented U-Groove Design
    • Center Electrode Core Material: Copper
    • Center Electrode Tip Material: Nickel
    • Ground Configuration: Standard
    • Ground Electrode Core Material: Nickel
    • Ground Electrode Quantity: 1
    • Ground Electrode Tip Design: U-Groove
    • Hex Size: 16.0
    • Manufacturer Heat Range: 16
    • Pre-Gap Size: 0.044
    • Reach: 18.00
    • Resistance: 5000
    • Seat Type: Tapered
    • UPC: 042511050471
    • Part Description: 1991 Mercury Grand Marquis Original U-Groove™ Spark Plug
    More Info
    Vehicle Fitment
    • 1991 Mercury Grand Marquis | All Trims | 8 Cyl 5.0L