Champion 592 Spark Plug

Description

The Champion 592 Spark Plug is part of Champion’s Copper Plus line, designed to deliver dependable ignition performance and long-lasting durability across a wide range of vintage automotive, industrial, marine, and small engine applications. Featuring a copper core center electrode, this OE-type replacement plug provides increased conductivity and accurate heat control to support reliable combustion and good overall wear.

Built to ISO and SAE standards, the Champion 592 is engineered to resist fouling and corrosion while maintaining consistent ignition performance in demanding service conditions. Its flat seat design, crush washer, resistor construction, and non-removable terminal nut make it well suited for engines requiring reliable spark delivery and proper sealing.

The Champion 592 is a practical replacement choice for classic cars, trucks, industrial equipment, generators, marine engines, and utility engines where durable copper-core performance and broad fitment are essential.

Features

• Copper Plus design for dependable performance and durability

• OE-type replacement spark plug

• Copper core center electrode for improved conductivity and heat control

• Resists fouling for consistent ignition performance

• Superior corrosion resistance for longer service life

• Built to ISO and SAE standards for proven performance

• Pre-gapped at 0.030 in (0.76 mm) for installation convenience

• Flat seat with crush washer for secure sealing

• Resistor spark plug design for compatible ignition systems

• Standard replacement plug for vintage automotive, industrial, marine, and equipment applications

Specifications

• Part Description: Spark Plug

• Classification: Champion Copper Plus Small Engine

• Grade Type: Standard Replacement

• Plug Type: RJ12C

• Center Electrode Tip Material: Copper

• Center Electrode Design: Standard

• Center Electrode Diameter: 0.1 in

• Ground Electrode Quantity: 1

• Ground Electrode Tip Material: Nickel

• Ground Electrode Core Material: Nickel

• Ground Electrode Material: Nickel Copper Alloy

• Pre-Gap Size: 0.030 in / 0.76 mm

• Hex Size: 0.813 in / 20.650 mm

• Manufacturer Heat Range: 12

• Seat Type: Flat

• Reach: 0.375 in

• Thread Diameter: 14.000 mm / 0.551 in

• Resistor Type: Yes

• Electrical Terminal Type: Non-Removable Nut

• Washer Included: Yes

• Washer Type: Crush

• Indexed: No

• Hex Type: Hex

• Installed Height: 2.41 in

• Taper Diameter: 0.28 in

• Subject to Prop 65: No

Fitment

Compatible with a wide range of vintage automotive, industrial, marine, and equipment applications. Examples from the supplied fitment data include:

Automotive Applications

• Buick Century Series 60 (1938–1942)

• Buick Limited Series 80 and 90 (1938–1942)

• Buick Roadmaster, Roadmaster Series 70, 80, and 90 (1938–1952)

• Buick Special, Special 40, Special Series 40, 40-A, and 40-B (1938–1953)

• Buick Super and Super Series 50 (1940–1952)

• Chevrolet Bel Air (1950–1962)

• Chevrolet Biscayne (1958–1962)

• Chevrolet Brookwood (1959)

• Chevrolet C10, C20, C30, C40, C50, and C60 truck applications

• Chevrolet Corvette (1958–1960)

• Chevrolet Del Ray (1958)

• Chevrolet El Camino (1964–1966)

• Chevrolet Fleetline (1949–1952)

• Chevrolet Impala (1959–1962)

• Chevrolet K10 and K20 Pickup (1962–1966)

• Chevrolet Master, Standard, Pickup, Truck, and P-Series applications

• Chrysler Airflow, Airstream, Imperial, New Yorker, Newport, Royal, Saratoga, Town & Country, Windsor, and many C-series applications

• Crosley Crosley, Farm-O-Road, Hot Shot, Panel Delivery, Pickup, Standard, Super, Super Shot, and Super Sports (1939–1952)

• DeSoto Airflow, Airstream, Custom, Deluxe, Powermaster, S-series applications

• Dodge B-series, C-series, Coronet, Custom, Deluxe, Meadowbrook, Power Wagon, Truck, Wayfarer, WD-series, WC, and WDX applications

• Fargo FD1, FH1, and FJ1 applications

• Hudson Deluxe, Pacemaker, Special, and Super series applications

• LaSalle Series 50 (1935)

• Nash 400 Series, 600, Ambassador, Rambler, Statesman, Nash-Healey, LaFayette, and related applications

• Oldsmobile 88, 98, F-series, G-series, L-series, Series 60, 66, 68, 76, 78, 88, 90, and 98 applications

• Packard 200, 250, 300, Cavalier, Clipper, Custom Eight, Deluxe Eight, Patrician, Standard Eight, Super Eight, and numerous Model 900–1408 applications

• Peugeot 202 (1945–1948)

• Pierce-Arrow 12, Salon Twelve, Silver Arrow, and multiple 1200-series applications

• Plymouth Belvedere, Cambridge, Concord, Cranbrook, Deluxe, Fury, Plaza, Savoy, Suburban, and numerous P-series applications

• Pontiac Catalina, Chieftain, Silver Streak, Streamliner, Torpedo, Star Chief, and multiple Deluxe and Series applications

• Tucker 48 (1948)

• Vauxhall Fourteen, Ten, Twelve, Velox, and Wyvern (1946–1949)

Industrial and Equipment Applications

• Allis-Chalmers B-15, D-17, R, WF, W-25, W-201, and A-CB applications

• Bucyrus-Erie 20W, 22W, 22T, 27T, 30B, 36L, and additional models

• Caterpillar 2, 4, 6, DW10, DW20, DW21, and additional models

• Cockshutt 427, 428, 429, and 7 Pull Type

• Hough PayLoader H30R, H90, HAH, HAH-E, HF, HH, HM, HO, HR, HU and T-series Paymover applications

• Hyster G10P, KG51, M2, M3, MD, MH, RT100, RT120, RT150, VA70, XA60, ZA80 applications

• John Deere 40, 320, and 330

• Leroi 60G1, 85G1, 105G1, 105G1T, 105G1U, 105G2, 125G1, 125G2, 125TA, 150RG2

• MQ Power equipment

• Silent Hoist & Crane CD, FK-5, and FK-6

• Thew SP254, SP254W, SP424, TSP875, MC875 Moto Crane, and additional models

• Yale G54P, Y-18, and KGP51

• Oliver OC3, OC4, and OC12

• Homelite 36S, 37S, 9S3-1, 250DP3, and Homelite-Jacobsen M26, Snowburst, and Yard Trac

• Mixermobile E, F, H, and K

• Stow equipment

• Burro equipment

• Best equipment

• Centaur equipment

• Insley equipment

• Whiteman equipment

• Hobart applications

• Mall Tool applications

• Nelson P-10, Q-10, and R-10

• Towmotor applications

• Superior Handling Equipment Speed-Lift

• Wagner Tractor Scoopmobile

• American Coleman MB-4

• General Equipment applications

Small Engine, Generator, and Utility Applications

• Kohler 350 Watt, 750 Watt, 2KW, 3.5KW, 5KW, 6.5KW, and base applications

• Clinton base applications, Chief, Chief Miniature, and 750W models

• Bunton Base, Dilly 2, Duzmore 16", Little Mo, and Red Wing

• Cub Cadet 582

• Generac IM60G

• Hoffco 6830-16 and BP550

• Jari equipment

• Joy equipment

• Lawn-Boy applications

• Pioneer F, G, and M

• Robin applications

• Smith applications

• Terrill 50, CS5, CS5A, CS5B, CS5C, and FA

• Wright C50, C50D, C50SG, GS218, and GS2520

• Power Products, Power Pak, Motor Generator 619, 620, and 621

• Wizard, Sears, Elgin, McCulloch, West Bend, Gale, Chrysler Marine, Champion Outboard Company, Gray Marine, Outboard Jet, Kermath Marine, Aero Marine, Eska, Viking, Barracuda, Coast-To-Coast, Otasco, Sea King, Firestone, Fisher-Pierce, Mighty Might Marine, and many other marine and outboard applications listed in the supplied fitment data

Additional fitment includes numerous industrial engine codes such as IND14, IND15, IND16A, IND18A, IND19A, IND20A, IND30, IND31, IND32, IND33, IND908A, IND931, and other listed engine applications.

Verify exact fitment by make, model, year, engine size, and manufacturer specifications before purchase or installation.