Description:
The Champion RH10C spark plug is a Copper Plus standard replacement spark plug designed for dependable ignition performance across a wide range of automotive, industrial, marine, and equipment applications. Its copper core center electrode helps improve conductivity and heat control, supporting reliable starts, reduced fouling, and consistent overall wear.
Engineered as an OE-type replacement, this plug is built to ISO and SAE standards for trusted durability and fitment accuracy. The RH10C features a flat seat, 14 mm thread diameter, 0.438-inch reach, removable nut terminal, and resistor design, making it a strong replacement choice for select vintage vehicle, industrial equipment, and engine applications.
Features:
- Champion Copper Plus standard replacement spark plug
- Part number: 854
- Plug type: RH10C
- Copper core center electrode supports conductivity and heat control
- Resists fouling for dependable performance
- Superior corrosion resistance
- OE-type replacement design
- Built to ISO and SAE standards
- Pre-gapped to 0.030 in. / 0.78 mm
- 14 mm thread diameter
- 0.438 in. reach
- Flat seat design
- 13/16 in. (0.813 in. / 20.650 mm) hex size
- Resistor type: Yes
- Manufacturer heat range: 10
- Ground electrode quantity: 1
- Center electrode tip material: Nickel
- Ground electrode core material: Nickel
- Ground electrode tip material: Nickel
- Ground electrode material: Nickel Copper Alloy
- Center electrode diameter: 0.094 in.
- Electrical terminal type: Removable Nut
- Washer included: Yes
- Washer type: Crush
- Hex type: Hex
- Center electrode design: Standard
- Installed height: 2.15 in.
- Taper diameter: 0.31 in.
- Indexed: No
- Prop 65: No
Vehicle Fitment:
-
Allard: J1 (1946–1949), J2 (1950–1951), J2X (1952–1954), K2 (1950–1951), L (1949), M (1946–1949), Monte Carlo (1952–1954), Safari (1952–1954)
-
American Bantam: Model 60 (1939), Model 62 (1939), Model 65 (1940–1941)
-
American Motors: Ambassador (1958–1959), American (1958–1965), Classic (1965), Rambler (1958–1959), Rebel (1958–1959)
-
Auburn: Model 6-653 (1935), Model 6-654 (1936), Model 652X (1934), Model 652Y (1934), Model 8-851 (1935), Model 8-852 (1936), Model 850X (1934), Model 850Y (1934)
-
Chrysler: Airflow (1936–1937), Airflow Series C-1 (1935), Airflow Series CU (1934), Airstream Deluxe Series C-8 (1936), Airstream Deluxe Series CZ (1935), Airstream Series C-6 (1935), Airstream Series C-7 (1936), Airstream Series CZ (1935), C19 (1938), C23 (1939), C26 (1940), C30 (1941), C33 (1941–1942), C36 (1942), Crown Imperial (1940–1942), Custom (1937), Custom Line (1932), Deluxe Series CD (1932), Imperial (1937–1939), Imperial Airflow (1936), Imperial Airflow Series C-2 (1935), Imperial Airflow Series CV (1934), Imperial Custom (1937–1939), Imperial Custom Airflow (1936–1937), Imperial Custom Airflow Series C-3 (1935), Imperial Custom Airflow Series C-W (1935), Imperial Custom Airflow Series CW (1934), Imperial Custom Airflow Series CX (1934), Imperial Custom Series CL (1932–1933), Imperial Series CQ (1933), New York Special (1938), New Yorker (1939–1942), Royal (1937–1942), Royal Series CT (1933), Royal Windsor (1939), Saratoga (1939–1942), Series 70 (1932), Series CA (1934), Series CB (1934), Series CD (1931–1932), Series CG (1932), Series CH (1932), Series CI (1932, 1937), Series CO (1933), Series CP (1932), Series Six CM (1932), Standard Line (1932), Town & Country (1941–1942), Traveler (1940), Windsor (1940–1942)
-
Citroen: 11 (1951–1957), 15 (1951–1956)
-
Cord: 810 (1936), 812 (1936–1937)
-
DeSoto: Airflow (1934–1935), Airflow III (1935–1936), Airstream (1935), Deluxe Airstream (1936), Model CF (1932), Model SA (1932), Model SC (1932), Model SD (1933), S-10 (1942), S-3 (1937), S-5 (1938), S-6 (1939), S-7 (1940), S-8 (1941), SS (1935)
-
Dodge: Deluxe (1932–1940), Series D2 (1936), Series DK (1932), Special (1939–1940), Truck (1933–1940), VC (1940), WC (1941)
-
Fargo: FD1 Pickup (1936), FE1 Panel Delivery (1937), FE1 Pickup (1937), FE1 Sedan Delivery (1937), FE2 Pickup (1937), FG1 Panel Delivery (1938), FG1 Pickup (1938), FG1 Sedan Delivery (1938), FG2 Pickup (1938), FH1 Panel Delivery (1939), FH1 Pickup (1939), FH2 Pickup (1939), FJ1 Panel Delivery (1940), FJ1 Pickup (1940), FJ2 Pickup (1940), FK1 Panel Delivery (1941), FK1 Pickup (1941), FK2 Pickup (1941)
-
Ford: 1 Ton Pickup (1938–1947), 1/2 Ton Pickup (1938–1947), 3/4 Ton Pickup (1938–1947), Club (1953–1954), Country Sedan (1950–1954), Country Squire (1950–1954), Courier Sedan Delivery (1952–1954), Crestline (1950–1954), Custom (1949–1952), Customline (1952–1954), Deluxe (1939–1951), F-1 (1948–1952), F-100 (1953–1954), F-2 (1948–1952), F-250 (1953–1954), F-3 (1948–1952), F-350 (1953–1954), F4 (1948–1952), Ford (1949), Mainline (1952–1954), Model 1 GA Truck (1941), Model 11 A (1941), Model 2 GA Special (1942), Model 21 A Deluxe (1942), Model 81 A (1938), Model 82 A (1938), Model 85 (1938), P-350 (1952–1954), Pickup (1940), Ranch Wagon (1950–1954), Sedan Delivery (1941–1947), Skyliner (1954), Standard (1939–1940), Sunliner (1952–1954), Super Deluxe (1941, 1946–1948), Victoria (1951–1954)
-
Graham: Cavalier Model 90 (1936), Custom Model 97 (1938), Custom Special 96 (1939), Deluxe Model 108 (1939), Model 110 (1936), Model 97 (1938–1939), Series 116 (1937), Series 120 (1937), Special Model 96 (1938–1939), Standard Model 96 (1938)
-
Hudson: Commodore Series (1948–1950), Custom Eight Series 75 (1937), Custom Eight Series 77 (1937), Custom Series 83 (1938), Custom Series 85 (1938), Custom Six (1937), Deluxe Eight Series 74 (1937), Deluxe Eight Series 76 (1937), Deluxe Series 84 (1938), Hornet (1953, 1955–1956), Super Jet (1953–1954), Super Series (1948–1950), Terraplane (1938), Utility Series 89 (1938), Wasp (1953–1956)
-
Lincoln: Capri (1952–1954), Continental (1940–1945), Cosmopolitan (1949–1954), Custom (1941–1942), Lincoln (1950–1951), Series K (1940), Zephyr (1936–1942)
-
Marathon: Corsaire (1953–1956), Pirate (1953–1956)
-
Mercury: Custom (1952–1954), M-47 (1948–1950), Mercury (1946–1952), Monterey (1950–1954), Series 19A (1941), Series 29A (1942), Series 99A (1939), Series O9A (1940)
-
Moskvich: 402 (1956–1964), 407 (1958–1964)
-
Nash: Rambler (1956–1957)
-
Peugeot: 202 (1945–1948)
-
Pierce-Arrow: 8 (1937–1938), Deluxe 8 (1936)
-
Plymouth: Deluxe (1937–1938), Deluxe PE Model (1934), Deluxe PJ Model (1935), Model PA (1932), Model PB (1932), Model PC (1933), Model PD (1933), Model PJ (1935), P1 Business Line (1936), P10 Deluxe (1940), P11 Deluxe (1941), P11 Standard (1941), P12 Special Deluxe (1941), P14C Special Deluxe (1942), P14S Deluxe (1942), P2 Deluxe (1936), P7 Roadking (1939), P8 Deluxe (1939), P9 Roadking (1940), PT-50 (1937), PT-57 (1938), Roadking (1937–1938), Standard PF Model (1934), Standard PG Model (1934)
-
Renault: 4CV (1951–1960), Juvaquatre (1946–1948)
-
Reo: Flying Cloud (1936)
-
Simca: 1100 (1948–1949), 1200 (1946–1948), 5 (1946–1949, 1962–1968), 6 (1946–1950), Ariane (1959–1961), Aronde (1951–1956), Huit (1950–1952), Vedette (1956–1961)
-
Studebaker: 3E12 (1958), 3E12D (1958), 3E13 (1958), 3E7 (1958), 3E7D (1958), 4E12 (1959), 4E12D (1959), 4E13 (1959), 4E2 (1959), 4E2D (1959), 4E7 (1959), 4E7D (1959), 5E12 (1960), 5E12D (1960), 5E13 (1960), 5E13D (1960), 5E7 (1960), 5E7D (1960), 6E12 (1961), 6E12D (1961), 6E13 (1961), 6E13D (1961), 6E7 (1961), 6E7D (1961), 7E12 (1962), 7E12D (1962), 7E13 (1962), 7E13D (1962), 7E7 (1962), 8E12 (1963–1964), 8E12D (1963–1964), 8E13 (1963–1964), 8E14 (1963–1964), 8E15 (1963–1964), 8E7 (1963–1964), 8E7D (1963–1964), Champ (1960–1962), Deluxe (1959), E12 (1955–1956), E13 (1955–1956), E28 (1955–1956), E38 (1955–1956), E7 (1955–1956), Golden Hawk (1957), Scotsman (1959), Transtar (1956–1958)
-
Harley-Davidson: XLCH (1972–1978), XLCR Cafe Racer (1977–1978), XLH1000 (1972–1978)
-
Industrial / Equipment / Small Engine Fitment Provided: Stow, Homelite-Jacobsen, John Deere, Skagit Hoists, OMC, Evans, Master, Davis, Hahn, Hodges, Miller, Athey, Ford industrial applications, Red-E-Hot, Merry Mac, Liquid Red Diamond, Vermeer, Gravely, Ramrod, Turbo Turf, Bobcat, Ditch Witch, Harley Davidson Utilicar GE, FMC Bolens, Cub Cadet, BCS, Lincoln Electric, Dixie Chopper, Mighty Mac, L&A Products, Peco, Austin-Western, Colt, M.J. Taylor, Melroe, Lindig, Lessman, Etnyre, Gorman-Rupp, Kolberg, Kut-Kwick, Target, Tennant, Huber, Hyster, Reinco, Link Belt, Salsco, Gregory, International, Roto-Hoe, Haban, Ferris, Lesco Equipment, Ransome, Waldon, Clark Equipment, Edco, Atwater-Strong, Mang, Hobart, National Mower, Lil’ Red, Roustabout, Construction Machinery Co., Yardman, Bucyrus-Erie, Simplicity, Hydro Terra, Harlo, Pennington, Heckendorn, Stone, New Holland, Rayco, Leroi, Huss, Littleford, Campbell-Hausfeld, Porto-Arc, Lay-Mor, Wagner Tractor, Mitts & Merrill, Mixermobile, Wayne, Thor Power Tools, MBW, Selbro, Pro Blow, Load King, Ariens, Seaman, Kalamazoo, Power Curber, NAMCO, Chip-It, Allis-Chalmers, Snapper, Cushman, Jacobsen, Easy Lawn, Fuel-A-Plane, Groundskeeper, Walker, Worthington, Lauson, E-Z Beever, Barnes, Kwik-Way, Echo, Power King, Onan, Toro, Sensation, Guin, Berkely, Bolens, Myers, Lima, Carver, Ingersoll-Rand, LaFont, FMC, Certified, Hesston, DeVilbiss, Economy, Whiz-Mow, Schweiss, Wheel Horse, Alladin, Rapid Mower, Grasshopper, Befco, Kromer, Middlesworth, Locke, Speedex, Ranger, Katolight, Moore Farmette, and Chris-Craft marine applications as provided in the original data.
