Homeβ€Ί Ignition > Secondary Ignitionβ€Ί Champion 841-1 Spark Plug
Part #: 841-1

Champion 841-1 Spark Plug

Copper Plus
βš™οΈ 127 vehicles fit this part
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βœ…OE Direct Replacement β€” Bolt-on fit, no modifications needed
πŸ“¦Copper Plus
πŸš—Fitment: Cadillac, Chevrolet, Fiat, Jeep, and Pontiac, 500, Acadian, Bel Air, Bonneville, Camaro, Caprice, Catalina, CJ5, Commercial Chassis, Corvette, DeVille, El Camino, Eldorado, Fleetwood, Impala, Laurentian, and Parisienne
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Reliable Spark Plug for Cadillac, Chevrolet, Jeep, and More

The Champion Copper Plus 841-1 spark plug is designed to provide consistent ignition performance for a range of vehicles including Cadillac, Chevrolet, Fiat, Jeep, and Pontiac models. Engineered with durable nickel components, this spark plug supports efficient combustion and reliable engine starts.

  • Standard replacement spark plug with part number 841-1
  • Nickel center electrode tip and ground electrode for durability
  • Pre-gapped to 0.030 inches (0.76 mm) for optimal spark
  • Flat seat type with a 0.375 inch reach
  • Removable nut electrical terminal type for easy installation
  • Hex size of 0.813 inches (20.65 mm) for standard wrench compatibility
  • Manufacturer heat range rating of 8
  • Compatible with multiple vehicle makes and models including Chevrolet Camaro, Cadillac DeVille, Jeep CJ5, and Pontiac Bonneville

About the Champion Copper Plus Spark Plug Line

The Copper Plus line from Champion is designed to offer reliable ignition performance using a copper core for improved conductivity. This line focuses on standard replacement spark plugs that maintain engine efficiency and smooth operation. The 841-1 spark plug benefits from this technology by combining a nickel copper alloy ground electrode and a nickel center electrode tip, ensuring consistent spark delivery and durability in small engine applications.

Technical Details and Features

The Champion Copper Plus 841-1 spark plug features a nickel copper alloy ground electrode and a nickel center electrode tip, which provide a balance of durability and conductivity. The spark plug is pre-gapped at 0.030 inches (0.76 mm) to meet manufacturer specifications, reducing the need for adjustment during installation. It has a flat seat design and a reach of 0.375 inches, suitable for various engine configurations. The removable nut electrical terminal type allows for straightforward connection to ignition wires, while the hex size of 0.813 inches (20.65 mm) fits common spark plug sockets.

Applications and Problem Solving

  • Compatible with Cadillac, Chevrolet, Fiat, Jeep, and Pontiac vehicles including models like Camaro, DeVille, CJ5, and Bonneville
  • Addresses issues such as misfires and rough idling caused by worn or faulty spark plugs
  • Helps restore engine starting reliability and smooth acceleration
  • Reduces fouling and electrode wear in standard replacement scenarios
  • Supports consistent combustion for improved fuel efficiency

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.030 inches (0.76 mm) as specified. Use a 0.813 inch (20.65 mm) socket wrench for proper tightening. The flat seat design requires careful torque application to avoid damage to the cylinder head. The removable nut terminal allows for easy connection to ignition wires, but ensure secure attachment to prevent electrical issues. Always consult the vehicle’s service manual for specific torque values and installation procedures.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM specifications and undergo rigorous quality control to ensure consistent performance. The 841-1 spark plug is classified under Champion copper plus small engine products, reflecting its suitability for a range of automotive applications. While no specific warranty information is provided, Champion products typically adhere to industry standards for durability and reliability.

BrandChampion
Part Number841-1
PositionCopper Plus
Ground Electrode Core MaterialNickel
Washer IncludedYes
Grade TypeStandard replacement
Electrical Terminal TypeRemovable nut
Center Electrode Tip MaterialNickel
Pre-Gap Size0.030
Pre-Gap Size0.76
Ground Electrode Quantity1
Hex Size0.813
Hex Size20.650
Manufacturer Heat Range8
Seat TypeFlat
Reach0.375
Resistor TypeNo
Ground Electrode Tip MaterialNickel
Hex TypeHex
Center Electrode DesignStandard
9745Crush
9746No
Center Electrode Diameter (Inch)0.1
ClassificationChampion copper plus small engine
Ground Electrode MaterialNickel copper alloy
Installed Height (Inch)2.24
Part DescriptionSpark plug
Plug TypeJ8c
Taper Diameter (Inch)0.25
Thread Diameter0.551
Thread Diameter14.000

This part fits 127 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1973JeepCJ52.2LL4N/ACopper Plus
1972JeepCJ52.2LL4N/ACopper Plus
1971JeepCJ52.2LL4N/ACopper Plus
1970JeepCJ52.2LL4N/ACopper Plus
1969JeepCJ52.2LL4N/ACopper Plus
1968ChevroletBel Air5.3LV8N/ACopper Plus
1968ChevroletCamaro4.9LV8N/ACopper Plus
1968ChevroletCaprice5.3LV8N/ACopper Plus
1968ChevroletCorvette5.4LV8N/ACopper Plus
1968ChevroletImpala5.4LV8N/ACopper Plus
1968JeepCJ52.2LL4N/ACopper Plus
1968PontiacLaurentian5.3LV8N/ACopper Plus
1968PontiacParisienne5.3LV8N/ACopper Plus
1967ChevroletBel Air5.3LV8N/ACopper Plus
1967ChevroletCamaro4.9LV8N/ACopper Plus
1967ChevroletCaprice5.3LV8N/ACopper Plus
1967ChevroletCorvette5.3LV8N/ACopper Plus
1967ChevroletImpala5.4LV8N/ACopper Plus
1967GMCG15/G1500 Van4.6LV8N/ACopper Plus
1967GMCG25/G2500 Van4.6LV8N/ACopper Plus
1967JeepCJ52.2LL4N/ACopper Plus
1967PontiacLaurentian5.3LV8N/ACopper Plus
1967PontiacParisienne5.3LV8N/ACopper Plus
1966CadillacCommercial Chassis7.0LV8N/ACopper Plus
1966CadillacDeVille7.0LV8N/ACopper Plus
1966CadillacEldorado7.0LV8N/ACopper Plus
1966CadillacFleetwood7.0LV8N/ACopper Plus
1966ChevroletBel Air5.3LV8N/ACopper Plus
1966ChevroletCaprice5.3LV8N/ACopper Plus
1966ChevroletCorvette5.3LV8N/ACopper Plus
1966ChevroletImpala5.4LV8N/ACopper Plus
1966JeepCJ52.2LL4N/ACopper Plus
1966PontiacAcadian5.3LV8N/ACopper Plus
1966PontiacLaurentian5.3LV8N/ACopper Plus
1966PontiacParisienne5.3LV8N/ACopper Plus
1965CadillacCommercial Chassis7.0LV8N/ACopper Plus
1965CadillacDeVille7.0LV8N/ACopper Plus
1965CadillacEldorado7.0LV8N/ACopper Plus
1965CadillacFleetwood7.0LV8N/ACopper Plus
1965ChevroletBel Air5.3LV8N/ACopper Plus
1965ChevroletCorvette5.3LV8N/ACopper Plus
1965ChevroletImpala5.4LV8N/ACopper Plus
1965JeepCJ52.2LL4N/ACopper Plus
1965PontiacAcadian5.3LV8N/ACopper Plus
1965PontiacLaurentian5.3LV8N/ACopper Plus
1965PontiacParisienne5.3LV8N/ACopper Plus
1964CadillacCommercial Chassis7.0LV8N/ACopper Plus
1964CadillacDeVille7.0LV8N/ACopper Plus
1964CadillacEldorado7.0LV8N/ACopper Plus
1964ChevroletBel Air5.3LV8N/ACopper Plus
1964ChevroletCorvette5.3LV8N/ACopper Plus
1964ChevroletImpala5.4LV8N/ACopper Plus
1964JeepCJ52.2LL4N/ACopper Plus
1964PontiacLaurentian5.3LV8N/ACopper Plus
1964PontiacParisienne5.3LV8N/ACopper Plus
1963CadillacCommercial Chassis6.4LV8N/ACopper Plus
1963CadillacDeVille6.4LV8N/ACopper Plus
1963CadillacEldorado6.4LV8N/ACopper Plus
1963ChevroletBel Air5.3LV8N/ACopper Plus
1963ChevroletCorvette5.3LV8N/ACopper Plus
1963ChevroletImpala5.3LV8N/ACopper Plus
1963JeepCJ52.2LL4N/ACopper Plus
1963PontiacLaurentian5.3LV8N/ACopper Plus
1963PontiacParisienne5.3LV8N/ACopper Plus
1962CadillacCommercial Chassis6.4LV8N/ACopper Plus
1962CadillacDeVille6.4LV8N/ACopper Plus
1962CadillacEldorado6.4LV8N/ACopper Plus
1962ChevroletBel Air5.3LV8N/ACopper Plus
1962ChevroletCorvette5.3LV8N/ACopper Plus
1962ChevroletImpala5.3LV8N/ACopper Plus
1962JeepCJ52.2LL4N/ACopper Plus
1962PontiacLaurentian5.3LV8N/ACopper Plus
1962PontiacParisienne5.3LV8N/ACopper Plus
1961CadillacCommercial Chassis6.4LV8N/ACopper Plus
1961CadillacDeVille6.4LV8N/ACopper Plus
1961CadillacEldorado6.4LV8N/ACopper Plus
1961ChevroletBel Air3.8LL6N/ACopper Plus
1961ChevroletImpala3.8LL6N/ACopper Plus
1961JeepCJ52.2LL4N/ACopper Plus
1960CadillacCommercial Chassis6.4LV8N/ACopper Plus
1960CadillacDeVille6.4LV8N/ACopper Plus
1960CadillacEldorado6.4LV8N/ACopper Plus
1960ChevroletBel Air3.9LL6N/ACopper Plus
1960ChevroletCorvette4.6LV8N/ACopper Plus
1960ChevroletEl Camino4.6LV8N/ACopper Plus
1960ChevroletImpala3.8LL6N/ACopper Plus
1960JeepCJ52.2LL4N/ACopper Plus
1959CadillacCommercial Chassis6.4LV8N/ACopper Plus
1959CadillacDeVille6.4LV8N/ACopper Plus
1959CadillacEldorado6.4LV8N/ACopper Plus
1959ChevroletBel Air3.8LL6N/ACopper Plus
1959ChevroletCorvette4.6LV8N/ACopper Plus
1959ChevroletEl Camino4.6LV8N/ACopper Plus
1959ChevroletImpala3.8LL6N/ACopper Plus
1959JeepCJ52.2LL4N/ACopper Plus
1959PontiacBonneville6.4LV8N/ACopper Plus
1959PontiacCatalina6.4LV8N/ACopper Plus
1959PontiacLaurentian5.7LV8N/ACopper Plus
1959PontiacParisienne4.6LV8N/ACopper Plus
1958ChevroletBel Air3.8LL6N/ACopper Plus
1958ChevroletCorvette4.6LV8N/ACopper Plus
1958ChevroletImpala3.8LL6N/ACopper Plus
1958PontiacBonneville6.1LV8N/ACopper Plus
1958PontiacCatalina6.1LV8N/ACopper Plus
1958PontiacLaurentian5.7LV8N/ACopper Plus
1957ChevroletBel Air3.8LL6N/ACopper Plus
1957PontiacBonneville5.7LV8N/ACopper Plus
1957PontiacCatalina5.7LV8N/ACopper Plus
1957PontiacLaurentian4.3LV8N/ACopper Plus
1956ChevroletBel Air3.8LL6N/ACopper Plus
1956ChevroletCorvette4.3LV8N/ACopper Plus
1956PontiacCatalina5.2LV8N/ACopper Plus
1956PontiacLaurentian4.3LV8N/ACopper Plus
1955ChevroletBel Air3.8LL6N/ACopper Plus
1955Fiat5000.6LL4N/ACopper Plus
1955PontiacCatalina4.7LV8N/ACopper Plus
1955PontiacLaurentian4.3LV8N/ACopper Plus
1954ChevroletBel Air3.8LL6N/ACopper Plus
1954Fiat5000.6LL4N/ACopper Plus
1953ChevroletBel Air3.9LL6N/ACopper Plus
1953Fiat5000.6LL4N/ACopper Plus
1952Fiat5000.6LL4N/ACopper Plus
1951Fiat5000.6LL4N/ACopper Plus
1950Fiat5000.6LL4N/ACopper Plus
1949Fiat5000.6LL4N/ACopper Plus
1948Fiat5000.6LL4N/ACopper Plus
1947Fiat5000.6LL4N/ACopper Plus

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

J8C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.