Champion XC12YC Copper Plus Small Engine Spark Plug – Replacement Lawn & Garden Equipment Engine Ignition Component

Part Number: 982
Category: Champion Lawn & Garden Equipment Engine Replacement Parts
Type: Replacement XC12YC Copper Plus Resistor Engine Ignition Spark Plug

The Champion XC12YC Copper Plus Small Engine Spark Plug (982) is a replacement ignition system component designed for compatible gasoline-powered lawn and garden equipment engines requiring the XC12YC spark plug configuration. Featuring a copper-core center electrode, nickel-alloy electrode tips, and Champion's corrosion-resistant coated shell, this spark plug provides reliable electrical conductivity, controlled heat dissipation, and dependable ignition performance.

Product Specifications

• Part Number: 982

• Spark Plug Model: XC12YC

• Brand: Champion

• Product Series: Copper Plus

• Product Type: Small Engine Spark Plug

• Component Type: Engine Ignition Resistor Spark Plug

• Electrode Design: Standard Single Ground Electrode

• Center Electrode Construction: Copper Core with Nickel-Alloy Electrode Tip

• Ground Electrode Material: Nickel Alloy

• Thread Diameter: 14mm

• Thread Pitch: 1.25mm

• Thread Size: M14 x 1.25

• Thread Reach: 19mm (3/4")

• Hex Size: 16mm (5/8")

• Seat Type: Gasket Seat

• Heat Range: Champion 12

• Resistor Type: Combined Resistive/Inductive Suppression

• Resistor Plug: Yes

• Nominal Electrode Gap: 0.030" (0.76mm)

• Listed Preset Gap Range: 0.027"–0.033" (0.69–0.84mm)

• Electrical Terminal Type: Non-Removable Nut

• Shell Finish: Corrosion-Resistant Coating

• Application: Small Gasoline Engine Ignition System Maintenance and Repair

• Function: Generating an Electrical Spark to Ignite the Engine Air-Fuel Mixture

• System: Engine Ignition and Combustion System

• Installation Location: Designated Engine Cylinder Head Spark Plug Port

• Equipment Compatibility: Select Small Gasoline Engines Specifying Champion XC12YC / 982

• Quantity: 1 Spark Plug

• Condition: New

Features & Benefits

• Champion XC12YC Copper Plus replacement small engine spark plug

• Champion stock number 982

• Designed for compatible gasoline-powered lawn and garden equipment engines

• Features Champion's Copper Plus ignition technology

• Copper-core center electrode supports efficient electrical conductivity

• Copper-core construction helps regulate electrode temperature during operation

• Nickel-alloy electrode tips provide dependable ignition performance

• Features a standard single ground electrode configuration

• Designed with a 14mm x 1.25mm threaded shell

• Provides a 19mm (3/4-inch) thread reach for compatible engine applications

• Features a 16mm (5/8-inch) hex size for installation with appropriately sized spark plug sockets

• Incorporates a gasket-style sealing seat

• Features Champion heat range 12

• Resistor design helps suppress ignition-related electrical interference

• Helps protect compatible electronic systems from spark-generated electrical noise

• Features a nominal 0.030-inch electrode gap

• Preset gap configuration helps simplify installation when the supplied gap matches engine requirements

• Corrosion-resistant shell coating helps protect exposed metal surfaces

• Provides a replacement for worn, fouled, damaged, or deteriorated spark plugs

• Helps maintain consistent ignition and dependable engine starting

• Supports proper combustion when correctly installed and maintained

• Helps restore ignition performance when the existing spark plug is defective

• Suitable for routine engine tune-ups and preventive ignition system maintenance

• Designed for appropriately matched small engine ignition configurations

• Supports continued engine serviceability through scheduled spark plug replacement

• Practical replacement ignition component for compatible residential and commercial outdoor power equipment

Applications

• Compatible gasoline-powered small engines

• Champion XC12YC spark plug replacement

• Champion 982 Copper Plus ignition system servicing

• Lawn mower engine spark plug replacement

• Riding lawn mower ignition maintenance where compatible

• Lawn tractor engine tune-ups

• Garden tractor engine servicing

• Zero-turn mower ignition maintenance where compatible

• Residential outdoor power equipment maintenance

• Commercial mowing equipment servicing where specified

• Small engine ignition system repairs

• Replacement of worn or fouled spark plugs

• Engine combustion system maintenance

• Routine spark plug inspection and replacement

• Seasonal lawn mower engine maintenance

• Preventive small engine tune-up procedures

• Equipment requiring a compatible 14mm resistor spark plug

• Engines specifying a 19mm thread reach and gasket-style spark plug seat

• Equipment specifying Champion XC12YC or Champion stock number 982

Important Notes

• Verify Champion spark plug model XC12YC and stock number 982 before ordering

• This listing is for a replacement Copper Plus small engine spark plug, not a complete ignition system or engine maintenance kit

• Confirm compatibility with your specific engine model, specification number, and equipment application

• Verify the engine manufacturer's spark plug requirements before purchasing

• Do not assume compatibility with all gasoline-powered lawn and garden equipment

• Different engines may require different spark plug thread sizes, heat ranges, electrode designs, or ignition resistance characteristics

• The equipment model alone may not identify the correct replacement spark plug

• Check the engine manufacturer's illustrated parts diagram and maintenance documentation

• Confirm that your engine specifies Champion XC12YC, stock number 982, or an approved equivalent

• Verify the required 14mm thread diameter and 1.25mm thread pitch

• Confirm that the 19mm (3/4-inch) thread reach matches the original spark plug

• Verify compatibility with the 16mm (5/8-inch) hex and gasket-style sealing seat

• Similar-looking spark plugs may differ in thread reach, electrode projection, heat range, or sealing configuration

• Do not substitute a spark plug based solely on physical appearance

• Verify that Champion heat range 12 is suitable for the intended engine application

• Do not assume that spark plug heat range numbers are interchangeable between manufacturers

• The XC12YC is a resistor-type spark plug featuring combined resistive and inductive suppression

• Confirm whether your engine requires a resistor or non-resistor spark plug

• The nominal electrode gap is 0.030 inches (0.76mm)

• Published preset gap specifications may range from approximately 0.027 to 0.033 inches

• Always confirm the correct electrode gap specified by the engine manufacturer

• Do not assume the factory-supplied gap matches every compatible engine application

• Inspect the electrode gap before installation using an appropriate measuring tool

• Adjust the electrode gap only when permitted by the spark plug and engine manufacturer

• Avoid damaging the center electrode, ground electrode, or ceramic insulator during gap inspection

• Confirm whether your engine requires one or multiple spark plugs for complete ignition system servicing

• Do not assume spark plug wires, ignition coils, terminals, or additional maintenance components are included

• Follow the engine manufacturer's recommended spark plug inspection and replacement intervals

• Maintenance intervals may vary depending on engine configuration, operating hours, and environmental conditions

• Replace spark plugs that are excessively worn, fouled, cracked, contaminated, or otherwise unsuitable for continued operation

• Shut off the engine and allow it to cool sufficiently before performing ignition system maintenance

• Remove the ignition key and secure the equipment against unintended starting

• Disconnect the spark plug wire or ignition coil connection before removing the existing spark plug

• Wear appropriate protective gloves and eye protection during engine servicing

• Clean accumulated dirt, grass, and debris from around the spark plug before removal

• Prevent loose debris and foreign materials from entering the engine cylinder

• Use the correct 16mm (5/8-inch) spark plug socket and appropriate installation tools

• Carefully remove the existing spark plug without damaging the cylinder head threads

• Inspect the removed spark plug for carbon deposits, oil contamination, electrode erosion, or abnormal wear

• Check the cylinder head threads and spark plug sealing surface for damage before installation

• Verify that the replacement spark plug matches the original thread and gasket-seat configuration

• Start threading the replacement spark plug by hand to help prevent cross-threading

• Do not force installation if unusual resistance is encountered

• Tighten the spark plug according to Champion and engine manufacturer torque specifications

• Torque requirements may vary depending on cylinder head material and engine configuration

• Avoid overtightening or undertightening the spark plug

• Incorrect tightening may damage cylinder head threads, compromise sealing, or affect spark plug heat transfer

• Do not apply anti-seize lubricant unless specifically recommended by the manufacturer

• Ensure the spark plug terminal and ignition connection are properly secured after installation

• Keep ignition wires and electrical connections away from hot surfaces and moving engine components

• Verify proper engine starting and operation after completing maintenance

• A replacement spark plug may not resolve ignition problems caused by defective ignition coils, damaged wiring, fuel system faults, or unrelated mechanical engine issues

• Follow the engine manufacturer's recommended maintenance and safety instructions

• Confirm current manufacturer specifications, engine compatibility, electrode gap requirements, and included quantity before ordering