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Mercury Montclair Spark Plug

We have 7 Items In-stock. Select a year to continue.
$2.80 List Price $3.30 Save $0.50 Availability: In Stock
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NGK WR5 V-POWER SPARK PLUG, SOLD INDIVIDUALLY

NGK V-Power Spark Plug has a unique V-power design that directs the spark to the edge of the electrode where it develops more rapidly to improves ignitability than OE manufacturer and racer approved.

Specifications:
  • 18 mm thread size
  • 10.9 mm reach
  • 20.6 mm hex size
  • Tapered seat style
  • Resistor plug type
  • Solid terminal nut
  • Projected tip
  • V-grooved centered electrode
  • Nickel alloy tip
  • One ground strap quantity
  • Heat range 5

Features:
  • Increases ignitability even in lean burn conditions and lowers ignition system voltage requirements
  • Increases fuel economy and lower emissions
  • Trivalent metal plating has superior anti-corrosion and anti-seizing properties
  • Highly durable against electrical and chemical wear


  • SKU#: NG2438
  • Brand: NGK
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
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Fits the following Mercury Montclair Years:
  • 1964-1968 | 8 Cyl 6.4L | Base
  • 1958-1968 | 8 Cyl 7.0L | Base
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$3.83 List Price $4.52 Save $0.69 Availability: In Stock
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DENSO REGULAR CLASS TRADITIONAL SPARK PLUG

Denso's Regular Class Traditional Spark Plugs guarantee the quality of the product they produce because every component that leaves their factories has been designed with precision, manufactured to the strictest OE standards and subjected to rigorous safety and performance tests.

Specification:
  • 18 mm thread size
  • 11.6 mm reach
  • 0.81 in. hex size
  • 0.03 in. gap size
  • Tapered seat style
  • Resistor plug type
  • U-groove ground electrodes
  • Removable terminal
  • Projected tip
  • Heat range 16

Features:
  • Designed with heavy duty insulator that provides unparalleled dielectric strength and thermal conductivity under extreme temperatures
  • Five-rib design prevents flashover while decreasing voltage loss
  • Copper glass seal bonds the center electrode and insulator together for a gas-tight seal
  • Platinum center electrode utilizes platinum to shrink the surface area of the center electrode tip for maximum firing performance and minimum voltage requirements
  • Platinum ground electrode resists gas and electrical erosion and corrosion extending service intervals to 60,000 miles


  • SKU#: NPMA16PRU
  • Brand: Denso
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 0.8 mm
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Fits the following Mercury Montclair Years:
  • 1958-1967 | 8 Cyl 7.0L | Base
  • 1958 | 8 Cyl 7.0L | Turnpike Cruiser
$2.76 List Price $3.26 Save $0.50 Availability: In Stock
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BOSCH REGULAR CLASS SUPER PLUS SPARK PLUG

Bosch Regular Class Super Plus Spark Plug has a heavy duty yttrium enhanced copper core center electrode for superior reliability and increased resistance to spark erosion.

Specifications:
  • 18 mm thread size
  • 11.2 mm reach
  • 20.8 mm hex size
  • 0.9 mm gap
  • Tapered seat style
  • Interference suppression resistor
  • Yttrium enhanced copper core center electrode
  • Tapered V-profile nickel ground electrode
  • Removable terminal nut
  • Heat range 10

Features:
  • Tapered V-profile nickel ground electrode provides improved starting in cold weather and increased fuel ignitibility
  • Metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage
  • SKU#: BS7551
  • Brand: Bosch
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 0.9 mm
(see more)
Fits the following Mercury Montclair Years:
  • 1958-1959 | 8 Cyl 7.0L | Base
  • 1956-1959 | All Engines | All Submodels
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$5.37 List Price $6.34 Save $0.97 Availability: In Stock
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AC DELCO SPARK PLUG KIT, SOLD INDIVIDUALLY -- Constructed from top quality materials to help the engine run clean and longer; Features a copper-core center electrode for improved heat transfer to the tip; Hot-tip insulators heats fast and fires hot to promote longer electrode life for miles of dependable performance; Nickel-chrome alloy sheathing on the ground and center electrodes offers maximum resistance against wear from spark erosion and the corrosive environment of the combustion chamber; Engineered to high standards and tested under extreme conditions to exceed OE specifications; Replaces OE numbers 05613886 and 5613886.
  • SKU#: ACR85TS
  • Brand: AC Delco
  • Fit Note: Car
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Replaces OE Number: 5613886
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Fits the following Mercury Montclair Years:
  • 1968 | 8 Cyl 6.4L | Base
  • 1967-1968 | 8 Cyl 7.0L | Base
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$3.88 List Price $4.58 Save $0.70 Availability: In Stock
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MOTORCRAFT SUPPRESSOR SPARK PLUG, COPPER, SOLD INDIVIDUALLY

0.04 in. gap size, standard service plug; Delivers maximum voltage to the spark plug while maximizing performance and increases engine life; Resists corrosion and abrasion; Reduces the chance of misfire.


  • SKU#: MISP431
  • Brand: Motorcraft
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Copper
  • Reach: 18 mm
(see more)
Fits the following Mercury Montclair Years:
  • 1956-1960 | 8 Cyl 5.1L | Base
  • 1957 | 8 Cyl 6.0L | Base
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$5.98 List Price $7.06 Save $1.08 Availability: In Stock
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CHAMPION TRADITIONAL SPARK PLUG, SOLD INDIVIDUALLY -- 18 mm thread diameter, 11.6 mm reach, 20.6 mm hex size, resistor type, tapered seat, projected core nose; Made of corrosion resistant zinc plated shell with copper plus core design; Features the most durable high voltage semiconductor; Conforms to all ISO and SAE standards.
  • SKU#: C3322
  • Brand: Champion
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Copper
  • Reach: 18 mm
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Fits the following Mercury Montclair Years:
  • 1968 | 8 Cyl 6.4L | Base
  • 1966-1967 | 8 Cyl 6.7L | Base
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$3.90 List Price $4.60 Save $0.70 Availability: In Stock
  • Clearance Item
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ACCEL U-GROOVE PERFORMANCE SPARK PLUG -- 18 mm thread size, 0.460 in. reach, 5/8 in. wrench diameter, heat range 8; Standard type, copper electrode core/tip material, projected insulator type, tapered seat style; Constructed with a five-rib, highly purified Alumina insulator that prevents arcing at plug boot and provides superior strength and thermal conductivity, a copper-glass seal that bonds insulator to electrode for a gas-tight seal, and a copper-core center electrode that comes with nickel chrome sheel for superior electrical conductivity and maximum heat dissipation; Its electric heat seal ensures stable heat range for uniform performance; The plug's machine rolled threads guarantee trouble free installation and removal, protecting the expensive cylinder heads; Features a unique U-groove ground electrode developed to meet the demand for improved ignitability and increased fuel combustion resulting in less flame dissipation; Gives the flame a groove to grow in that creates a larger flame front for a more complete combustion even in the case of lean air-fuel mixture; Produces greater firing energy without increasing spark plug gap and larger spark nucleus that stimulates faster combustion; Provides an increase in performance with improved throttle response, greater fuel efficiency and reduced emissions; With 90-day Accel limited warranty.
  • SKU#: A350378
  • Brand: Accel
  • Electrode Core Material: Copper
  • Plug Type: Non-resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Copper
  • Reach: 0.46 in.
(see more)
Fits the following Mercury Montclair Years:
  • 1968 | 8 Cyl 6.4L | Base
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