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Jeep J300 Spark Plugs Reviews
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Shop Jeep J300 Replacement Spark Plugs

Search our online spark plugs catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Jeep J300 Spark Plugs parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day.

We stock these Spark Plugs brands for the Jeep J300: AC DelcoChampionE3 Spark PlugsMotorcraftAutolite

Select your J300 year

Review Fitment Notes
Showing 14 of 49 Results
AC Delco Spark Plug - for 1965 Jeep J300 3.8L 6 Cyl - R44F Click to Enlarge
Website Reviews
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Part Number: R44F
Brand: AC Delco
Notes: Gold Conventional -- New; Gap .035
Condition: New
Center Electrode Tip Material: Nickel Alloy
Shipping Options: Ground
Must be purchased in quantities of 4
$1.85
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1965 Jeep J300 3.8L 6 Cyl
AC Delco Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl 1BBL OHV - R45XLS Click to Enlarge
Website Reviews
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Part Number: R45XLS
Brand: AC Delco
Notes: Professional Conventional -- New; Gap .035; OHV
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
  • Available for use in Marine applications
Condition: New
Shipping Options: Ground
$1.88
(16) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl 1BBL OHV
Champion Spark Plug - for 1963 Jeep J300 3.8L 6 Cyl - 312 Click to Enlarge
Website Reviews
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Part Number: 312
Brand: Champion
Notes: Copper Plus -- Plug Type L87YC; Non-Resistor Type; Gap 0.030in; OE Type
Condition: New
Classification: Champion Copper Plus Small Engine
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$1.61
(20) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
1963 Jeep J300 3.8L 6 Cyl
Champion Spark Plug - for 1965 Jeep J300 3.8L 6 Cyl - 327 Click to Enlarge
Website Reviews
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Part Number: 327
Brand: Champion
Notes: Copper Plus -- Plug Type RL87YC; 1/2in Reach Spark Plugs; Resistor Type; Gap 0.030in
Condition: New
Classification: Champion Copper Plus Small Engine
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$1.73
(12) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
1965 Jeep J300 3.8L 6 Cyl
Champion Spark Plug - for 1965 Jeep J300 5.3L V8 - 91 Click to Enlarge
Website Reviews
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Part Number: 91
Brand: Champion
Notes: Copper Plus -- Plug Type H14Y; Non-Resistor Type; Gap 0.035in; OE Type
Condition: New
Classification: Champion Agricultural Plugs
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$2.34
(8) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
1965 Jeep J300 5.3L V8
E3 Spark Plugs Spark Plug - for 1965 Jeep J300 3.8L 6 Cyl - E3.52 Click to Enlarge
Website Reviews
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Part Number: E3.52
Brand: E3 Spark Plugs
Notes: Spark Plug
  • Smoother Acceleration & Idle - The faster flame initiated by the E3 spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy - Power output improved by 6% on average in the typical operating ranges-results will vary
  • Efficiency - E3's DiamondFIRE ground electrode ignites the air/fuel mixture faster and more completely, creating a faster and larger flame kernel; more fuel is put to work with less waste; creating better fuel economy-results will vary
  • Ecology - E3 provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • E3 Spark Plugs are pre-gapped at the factory to meet O.E. requirements
Condition: New
Electrode Core: Copper
Electrode Tip: Nickel
Hex Size: 13/16 in
Shipping Options: Ground
$5.94
View Details
This Part Fits:
Catalog: B
Vehicle Engine
1965 Jeep J300 3.8L 6 Cyl
Motorcraft Spark Plug - for 1965 Jeep J300 5.3L V8 - SP-473 Click to Enlarge
Website Reviews
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Part Number: SP-473
Brand: Motorcraft
Notes: Copper Non-Resistor Spark Plug -- OE Style; .035"/0.9mm; Plug Material: Copper; -473-A
Condition: New
Shipping Options: Ground
$1.85
View Details
This Part Fits:
Catalog: N
Vehicle Engine
1965 Jeep J300 5.3L V8
Champion Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl - 312 Click to Enlarge
Website Reviews
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Part Number: 312
Brand: Champion
Notes: Copper Plus -- Plug Type L87YC; 1/2in Reach Spark Plugs; Non-Resistor Type; Actual OE Part; Gap 0.030in
Condition: New
Classification: Champion Copper Plus Small Engine
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$1.61
(20) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl
Champion Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl - 7322 Click to Enlarge
Website Reviews
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Part Number: 7322
Brand: Champion
Notes: Double Platinum Power -- Plug Type RN14PYP; 3/4in Reach Spark Plugs; Gap 0.035in
Condition: New
Classification: Champion Double Platinum
Ground Electrode Core Material: Platinum
Center Electrode Tip Material: Platinum
Shipping Options: Ground
Must be purchased in quantities of 4
$5.63
View Details
This Part Fits:
Catalog: B
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl
Champion Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl - 405 Click to Enlarge
Website Reviews
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Part Number: 405
Brand: Champion
Notes: Copper Plus -- Plug Type RN14YC; Actual OE Part; 3/4in Reach Spark Plugs; Gap 0.035in
Condition: New
Classification: Champion Copper Plus
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$1.54
(74) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl
E3 Spark Plugs Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl - E3.46 Click to Enlarge
5 Stars
E3 Spark Plugs E3.46
Spark Plug
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Part Number: E3.46
Brand: E3 Spark Plugs
Notes: Spark Plug -- Exc. OHV
  • Smoother Acceleration & Idle - The faster flame initiated by the E3 spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy - Power output improved by 6% on average in the typical operating ranges-results will vary
  • Efficiency - E3's DiamondFIRE ground electrode ignites the air/fuel mixture faster and more completely, creating a faster and larger flame kernel; more fuel is put to work with less waste; creating better fuel economy-results will vary
  • Ecology - E3 provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • E3 Spark Plugs are pre-gapped at the factory to meet O.E. requirements
Condition: New
Electrode Core: Copper
Electrode Tip: Nickel
Hex Size: 13/16 in
Shipping Options: Ground
Must be purchased in quantities of 4
$5.48
(48) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl
AC Delco Spark Plug - for 1963 Jeep J300 - R44F Click to Enlarge
Website Reviews
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Part Number: R44F
Brand: AC Delco
Notes: Gold Conventional -- New; Gap .035
Condition: New
Center Electrode Tip Material: Nickel Alloy
Shipping Options: Ground
Must be purchased in quantities of 4
$1.85
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
1963 Jeep J300
Champion Spark Plug - for 1963 Jeep J300 3.8L 6 Cyl - 327 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 327
Brand: Champion
Notes: Copper Plus -- Plug Type RL87YC; Resistor Type; Gap 0.030in
Condition: New
Classification: Champion Copper Plus Small Engine
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Nickel
Shipping Options: Ground
$1.73
(12) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
1963 Jeep J300 3.8L 6 Cyl
Autolite Spark Plug - for 1964 Jeep J300 3.8L 6 Cyl 1BBL OHV - AP66 Click to Enlarge
Website Reviews
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Part Number: AP66
Brand: Autolite
Notes: Platinum Spark Plug -- .035 Gap; OHV
  • Autolite Platinum plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability.
Condition: New
Center Electrode Core: Copper
Center Electrode Tip Material: Platinum
Ground Electrode Tip Material: Nickel
Shipping Options: Ground
$1.00
(50) In Stock
This Part Fits:
Catalog: F
Vehicle Engine
1964 Jeep J300 3.8L 6 Cyl 1BBL OHV

Related Engine Electrical Parts

Spark Plugs available for the following Jeep J300 years: 1965, 1964, 1963, 65, 64, 63. This part is also sometimes called Jeep J300 Spark Plug. We stock spark plugs parts for most Jeep models including Grand Cherokee, Wrangler, Cherokee, Liberty, Commander, Patriot, Compass, TJ, CJ5, CJ7, Renegade, Willys, Grand Wagoneer, Wagoneer, DJ5, 6 226, Commando, Comanche, J10, Gladiator, Scrambler, CJ6, J20, Utility Wagon, Universal, FC150, Jeepster, CJ3, J2500, FC170, J200, J4500, Universal Truck, J4600, J3500, 6 230, J4800, J100, J2600 and F134.

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