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Dodge D300 Spark Plug

We have 9 Items In-stock. Select a year to continue.
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Dodge D300 Spark Plug, NGK V-Power Spark Plug - Direct Fit

$3.48 $4.77 You Save $1.29 (27%)
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NGK UR4 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:
  • 14 mm thread size
  • 11 mm reach
  • 16 mm hex size
  • 0.04 in. gap size
  • Tapered seat style
  • Resistor plug type
  • Solid terminal nut
  • Projected tip
  • V-grooved centered electrode
  • Heat range 4

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


  • Brand SKU#: NGK 6630
  • Series: NGK V-Power
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Notes: Ships to U.S. addresses only. Cannot be shipped internationally.
  • Reach: 11 mm
  • Thread Size: 14 mm
  • Warranty: 60-day NGK limited warranty
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Fits the following Dodge D300 Years

  • 1975-1976 | Custom | 6 Cyl 3.7L
  • 1977-1978 | Base | 6 Cyl 3.7L

Dodge D300 Spark Plug, Denso Platinum TT Spark Plug - Direct Fit

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$5.67 $6.69 You Save $1.02 (15%)
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Denso Platinum TT OE Replacement Spark Plug

Denso is the world's leading provider of high quality automotive merchandises which are engineered from the modernized facilities and equipments. Denso's proficiencies with their products are better than rivals as they initially built them along with their strict and valued standards.

Denso Platinum Twin Tip Spark Plugs features revolutionary twin tip design that provides better ignitability for a more powerful and fuel-efficient combustion yielding better engine performance in terms of power and fuel economy.

Features:

  • Improves mileage and reduces carbon emissions
  • Provides additional power and quicker starts

Item Details:

  • .63 in. hex size
  • Platinum alloy 1.1 mm fine wire center electrode
  • Titanium enhanced 1.5 mm fine wire ground electrode
  • Tapered seat style
  • Solid terminal nut
  • Brand SKU#: Denso PTF16TT
  • Series: Denso Platinum TT
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Gap Size: 1.1 mm
  • Heat Range: 16
  • Reach: 11.6 mm
  • Thread Size: 14 mm
  • Warranty: 1 year Denso limited warranty
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Fits the following Dodge D300 Years

  • 1975-1976 | Custom | 6 Cyl 3.7L
  • 1977 | Base | 6 Cyl 3.7L
Customer Review: (see review/s)

Dodge D300 Spark Plug, Bosch Platinum Plus Spark Plug - Direct Fit

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$3.37 $3.98 You Save $0.61 (15%)
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BOSCH SUPER CLASS PLATINUM PLUS SPARK PLUG

Bosch Super Class Platinum Plus Spark Plug reaches self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency. Metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage.

Specifications:
  • 14 mm thread size
  • 22 mm reach
  • 16 mm hex size
  • 0.9 mm gap
  • Platinum plug
  • Tapered seat style
  • Interference suppression resistor
  • Heat fused platinum center electrode
  • Tapered yttrium enhanced ground electrode
  • Heat range 9

Features:
  • Platinum center electrode that is heat fused into the extended ceramic insulator
  • Tapered V-profile nickel ground electrode provides improved starting in cold weather and increased fuel ignitability
  • Brand SKU#: Bosch 4007
  • Series: Bosch Platinum Plus
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Gap Size: 0.9 mm
  • Reach: 22 mm
  • Thread Size: 14 mm
  • Warranty: 1 year or 12,000-mile Bosch limited warranty
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Fits the following Dodge D300 Years

  • 1976 | Custom | 6 Cyl 3.7L
  • 1977-1978 | Base | 6 Cyl 3.7L

Dodge D300 Spark Plug, AC Delco Conventional Spark Plug - Direct Fit

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$4.32 $5.10 You Save $0.78 (15%)
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Availability: In Stock
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AC DELCO CONVENTIONAL SPARK PLUG, SOLD INDIVIDUALLY

AC Delco Conventional Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine run cleaner and longer.

Features:
  • Constructed from top quality materials to help the engine run clean and longer
  • Copper core center electrode for improved heat transfer to the tip
  • Engineered to high standards and tested under extreme conditions to exceed OE specifications


  • Brand SKU#: AC Delco CR43TS
  • Series: AC Delco Conventional
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Thread Size: 14 mm
  • Warranty: 100,000-mile AC Delco limited warranty
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Fits the following Dodge D300 Years

  • 1977 | Base | 6 Cyl 3.7L
  • 1977-1978 | Base | 6 Cyl 3.7L

Dodge D300 Spark Plug, Pulstar Iridium Pulse Spark Plug - Direct Fit

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$14.95 $17.64 You Save $2.69 (15%)
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PULSTAR IRIDIUM PULSE SPARK PLUG, SOLD INDIVIDUALLY

Pulstar Pulse Spark Plug contains integrated electrical capacitor that focuses on the energy of the plug. Its electrical energy delivers the fuel mixture far beyond the typical conventional spark plugs and produces not only better fuel efficiency, but also increased torque and horsepower.

Specifications:
  • 14 mm thread size
  • 19 mm reach
  • 16 mm hex size
  • 1.14 mm gap
  • 0.5 mm fine-wire iridium tipped center electrode with copper core
  • Gasket seat
  • Resistor
  • Nickel alloy ground electrode

Features:
  • Latest in performance ignition technology
  • Provides up to 12 percent more horsepower and torque plus livelier throttle response than conventional spark plugs
  • Allows more efficient burning of fuel and generates a much larger spark at twice the speed than ordinary spark plugs
  • Promotes an increased gas mileage and greater horsepower to the wheels
  • Reduces carbon dioxide emissions and provides cleaner exhaust and more efficient combustion
  • Uses an internal circuit that delivers up to 1,000,000 watts of peak power that increases peak spark current by up to 20,000 times that of a traditional spark plug


  • Brand SKU#: Pulstar BE1H10
  • Series: Pulstar Iridium Pulse
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Iridium
  • Gap Size: 1.14 mm
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: Lifetime Pulstar limited warranty
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Fits the following Dodge D300 Years

  • 1975-1976 | Custom | 8 Cyl 5.2L
  • 1975-1976 | Custom | 8 Cyl 5.9L
  • 1977-1979 | Base | 8 Cyl 5.9L
  • 1977-1980 | Base | 8 Cyl 5.2L
  • 1979-1980 | Base | 8 Cyl 5.9L
  • 1980 | Base | 8 Cyl 5.2L
  • 1980 | Base | 8 Cyl 5.9L
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Customer Review: (see review/s)

Dodge D300 Spark Plug, Motorcraft Suppressor Spark Plug - Direct Fit

Best Seller
$3.71 $4.38 You Save $0.67 (15%)
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MOTORCRAFT SUPPRESSOR SPARK PLUG, COPPER, SOLD INDIVIDUALLY

Delivers maximum voltage to the spark plug while maximizing performance and increases engine life; Resists corrosion and abrasion; Reduces the chance of misfire.


  • Brand SKU#: Motorcraft SP-436
  • Series: Motorcraft Suppressor
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Warranty: 1 year or 12,000-mile Motorcraft limited warranty
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Fits the following Dodge D300 Years

  • 1977-1979 | Base | 8 Cyl 5.2L

Dodge D300 Spark Plug, Champion Single Platinum Power Spark Plug - Direct Fit

$4.96 $5.85 You Save $0.89 (15%)
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Availability: In Stock
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CHAMPION SINGLE PLATINUM POWER PLUG, SOLD INDIVIDUALLY

Champion Single Platinum Power Plugs reduce and maintain gap growth and proper gap. The voltage needed to fire them remains consistent, reducing the chance of misfire.

Specifications:
  • 14 mm thread diameter
  • V-trimmed ground electrode
  • Tapered seat
  • Projected tip

Features:
  • Center and side electrodes are tapered for performance while platinum tip on center electrode guarantees extended plug life


  • Brand SKU#: Champion 3025
  • Series: Champion Single Platinum Power
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Heat Range: 15.5
  • Reach: 14 mm
  • Thread Size: 11.6 mm
  • Warranty: 1-year Champion limited warranty
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Fits the following Dodge D300 Years

  • 1975-1976 | Custom | 6 Cyl 3.7L
  • 1979 | Base | 8 Cyl 5.2L

Dodge D300 Spark Plug, E3 DiamondFire Spark Plug - Direct Fit

Best Seller
$5.95 $8.99 You Save $3.04 (34%)
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Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 11.17 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel alloy electrode tip material, projected insulator type; Guaranteed to provide more power while using less fuel, quicker starts and less fouling than competitive standard spark plugs.
  • Brand SKU#: E3 E3.42
  • Series: E3 DiamondFire
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel Saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Reach: 11.6 mm
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
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Fits the following Dodge D300 Years

  • 1975-1976 | Custom | 6 Cyl 3.7L
  • 1977 | Base | 6 Cyl 3.7L
  • 1978 | Base | 6 Cyl 3.7L
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Dodge D300 Spark Plug, Accel C-Cut Shorty Spark Plug - Direct Fit

$20.89 $24.65 You Save $3.76 (15%)
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ACCEL - C-CUT SHORTY SPARK PLUGS FOR HEADERS

Get all of the benefits of the innovative C-Cut spark plug in a shorter length to help clear the tight spaces around headers. These Accel C-Cut Shorty Spark Plugs create a larger flame for a more efficient burn, resulting in better throttle response, high RPM power and increased fuel efficiency. Accel has over four decades of designing and manufacturing race-winning fuel and ignition systems.

  • Designed to prevent overheating of electrode to reduce misfiring and rough idle
  • Better throttle response, fuel efficiency and high RPM power
  • Larger flame for more efficient burn
  • Spark expands directly above electrode’s mid-point
  • Spark radius is larger but gap remains the same
  • Reduced length helps clear headers

 

  • Brand SKU#: Accel 0276S-4
  • Series: Accel C-Cut Shorty
  • Product Fit: Direct Fit
  • Quantity Sold: Set of 4
  • Electrode Core Material: Copper
  • Plug Type: Non-Resistor
  • Product Class: Fuel Saver
  • Recommended Use: Performance
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Copper
  • Gap Size: 0.035 in.
  • Heat Range: 6
  • Reach: 0.46 in.
  • Thread Size: 14 mm
  • Warranty: 90-day Accel limited warranty
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Fits the following Dodge D300 Years

  • 1976 | Custom | 6 Cyl 3.7L
  • 1977 | Base | 6 Cyl 3.7L

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