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Champion Spark Plug 803
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Champion Spark Plug 803

CHAMPION
ELE2025
In stock
$5.73 $4.99
Description The Champion Spark Plug 803 (N4C) is a dependable OE-type replacement spark plug designed for...
$4.99
Champion Spark Plug 803
Description

Description

The Champion Spark Plug 803 (N4C) is a dependable OE-type replacement spark plug designed for consistent ignition performance and long service life. Its copper core center electrode helps improve conductivity and heat control, supporting reliable starts, reduced fouling, and steady wear across a wide range of compatible vehicles, equipment, and engines.

Built to ISO and SAE standards, this Champion Copper Plus plug is designed for standard replacement use in classic automotive, industrial, agricultural, powersports, and utility engine applications. The flat-seat design, nickel electrode materials, removable nut terminal, and crush washer configuration help support dependable installation and broad fitment across older and specialty platforms.

Features

  • OE-type replacement spark plug
  • Champion Copper Plus Small Engine classification
  • Dependable performance and durability
  • Copper core center electrode for improved conductivity and heat control
  • Resists fouling
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Plug type: N4C
  • Part description: Spark Plug
  • Grade type: Standard Replacement
  • Center electrode tip material: Nickel
  • 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: 0.025 in. / 0.65 mm
  • Hex size: 0.813 in. / 20.650 mm
  • Manufacturer heat range: 4
  • Seat type: Flat
  • Reach: 0.75 in.
  • Thread diameter: 0.551 in. / 14.000 mm
  • Resistor type: No
  • Electrical terminal type: Removable Nut
  • Hex type: Hex
  • Washer included: Yes
  • Washer type: Crush
  • Indexed: No
  • Core nose length: 12.7 mm
  • Installed height: 2.15 in.
  • Taper diameter: 0.25 in.
  • Subject to Prop 65: No

Vehicle Fitment

Automotive and Light Truck Fitment

Alfa Romeo

  • 1900 — 1951-1954 — 1.9L L4 1884cc/115cid
  • 1900 — 1953-1958 — 2.0L L4 1975cc/121cid
  • 2000 — 1958-1962 — 2.0L L4 1975cc/121cid
  • 2600 — 1962-1968 — 2.6L L6 2584cc/158cid

Alvis

  • TE21 — 1963-1966 — 3.0L L6 2993cc/182cid
  • TF21 — 1966-1967 — 3.0L L6 2993cc/182cid

BMW

  • 2600 — 1962-1963 — 2.6L V8 2580cc/157cid
  • 3200 — 1962-1963 — 3.2L V8 3168cc/193cid

Chevrolet

  • C50 — 1966-1968 — 6.0L V8 5999cc/366cid
  • C60 — 1966-1968 — 6.0L V8 5999cc/366cid
  • C60 — 1968 — 7.0L V8 6998cc/427cid
  • C70 — 1960-1961 — 5.7L V8 5704cc/348cid

Facel Vega

  • Facellia — 1960-1961 — 1.6L L4 1647cc/101cid
  • Facellia — 1962-1963 — 1.6L L4 1647cc/101cid

Fiat

  • 124 — 1966-1967 — 1.2L L4 1197cc/73cid
  • 124 — 1967 — 1.2L L4 1197cc

Lancia

  • Flaminia — 1963-1968 — 2.8L V6 2775cc/169cid
  • Flaminia — 1964-1968 — 2.5L V6 2458cc/150cid
  • Fulvia — 1963-1969 — 1.1L V4 1091cc/67cid
  • Fulvia — 1965-1966 — 1.2L V4 1216cc/74cid

Lotus

  • Super Seven — 1961-1962 — 1.3L L4 1340cc/82cid

MG

  • MGA — 1959-1961 — 1.6L L4 1588cc/97cid

Mercedes-Benz

  • 219 — 1951-1959 — 2.2L L6 2195cc/134cid

NSU

  • 1200C — 1968-1972 — 1.2L L4 1177cc/72cid

Panhard

  • Dyna — 1956-1959 — 0.8L H2 850cc/52cid
  • PL-17 — 1960-1962 — 0.8L H2 850cc/52cid
  • PL-17 — 1961-1962 — 0.9L H2 850cc/52cid

Renault

  • Fuego — 1982-1984 — 1.6L L4 1565cc/96cid
  • R17 — 1972-1974 — 1.6L L4 1565cc/96cid
  • R17 — 1976-1979 — 1.6L L4 1647cc/100cid

Simca

  • 1000 — 1962-1968 — 0.9L L4 944cc/58cid

Turner

  • 803 — 1955 — 0.8L L4 803cc/49cid
  • 950 — 1956-1966 — 0.9L L4 948cc/58cid
  • SPR60 — 1959-1966 — 0.9L L4 948cc/58cid

Volkswagen

  • Transporter — 1985 — 1.9L H4 1915cc
  • Transporter — 1986-1991 — 2.1L H4 2109cc
  • Vanagon — 1984-1985 — 1.9L H4 1915cc
  • Vanagon — 1986-1991 — 2.1L H4 2109cc

Agricultural, Industrial, Construction, and Equipment Fitment

Compatible with listed applications including, but not limited to:

  • Aqua Stripper — Base
  • Alkota — Base
  • Ariens — Base, 522, 522E, 5520, 5524E, 724E, 11526DLE, 11528LE, 11528DLE, ST624, ST1024, ST1128LE, ST1332, ST1336LE, 1332DLE, 1336DLE
  • Acrease — Base
  • Baker — Base, 6/14E C/S
  • BCS — 204
  • Bear Cat — Base
  • Bobcat — Base
  • Bradson — 5, 5.5, Base
  • Brave — Base
  • Campbell-Hausfeld — Base
  • Contree — Base
  • Craftsman — Base, 247.775860, 247.775870, 247.775880, 247.77763, 247.795850, 247.88045, 247.883700, 247.888160, 536.252570, 536.255861, 536.881121, 536.886150, 536.888400, 580.327122, 580.329120, 580.762200, 580.762201, 580.762202, 580.768030, 917.293400, 917.293401, 917.293650, 917.377631, 917.389240, 917.389270, 917.389290, 917.389340, 917.389350, EZ3 917.377630
  • Cub Cadet — Base, 721E, 724WE
  • Dolmar — G5800, G6100R
  • Dyna — Base
  • Earthquake (Ardisam) — 5030T, 5050, 5070, 7050
  • Encore — Base
  • ESI (Equipment Synergy International) — Base
  • Fradan — Base
  • Garden King — Base
  • Garden Star — Base
  • Generac — Base, CP Series, 3250XE, 3500XEP, Mega 3000
  • Giant Mow — Base
  • Giant-Vac — Base
  • Gravely — Base
  • Honda — EM5000
  • Hydra Storm — Base
  • Husqvarna — Base, 510MDT, 524STE, 550CRTT, 5524SE, 5524ST, 560HST, 560HT, 8527SBE, 9027ST, 1130SB, 1130SBEOV, 1130SBEXP, 1130SB-XLS, 1130STE, 1330SB, 1330SBEXP, 1330SBE-OV
  • Iron & Oak — Base
  • John Deere — Base, 724D, 1128DE, 1128DDE, 1332DDE
  • Karcher — Base
  • Ketchum Aqua Seeder — Base
  • Lonmore — Base
  • Makita — G5710R, G5711R
  • Massey Ferguson — MF20, MF40, MF40B
  • MEP — Base
  • ighty Murc — Base
  • Minarelli — Base
  • Minneapolis-Moline — 840
  • MTD — Base
  • MTD Pro — Base
  • Murray — Base
  • Nissan industrial applications — B01, B02, DK11, F01, F02, F03, FG003, NFG101C
  • Nodwell — All Model(s), RN35, RN75, RN110
  • Noma — Base
  • NorthStar — Base
  • Oliver — 840, 1600, 1650, 1655, 1750, 1755, 1850, 1855, All 1800 Series
  • Outdoor Power Products — Base
  • Patriot — Base
  • Polaris utility equipment applications — PPS305D
  • Poulan / Poulan Pro — Base, PP1338, PP165H42
  • Robin — PTV205, PTV205ST, PTV305D
  • Satoh — S550G Elk, S650G Bison
  • Simplicity — Base, 755M, 860 DLX, 970M, 1180 ST
  • Snapper — Base
  • Subaru — Base
  • Swish-Err — Base
  • Tecumseh-powered equipment applications — numerous Base and engine-specific listings
  • Toro — Base
  • Troy-Bilt — 34007, 42036, 42041, CRT, Storm 13045, Super Bronco CRT, Tuffy CRT, 21A-663E766, 21A-683F766, 21AE663E766, 21AE683F766
  • Turf Teq — Base
  • Weber — Base
  • White — Base, SB-550
  • Winco — Base
  • Wolf Garten — Base
  • Yard Machines — Base
  • Yardman — Base

Powersports, Motorcycle, ATV, Snowmobile, and Personal Watercraft Fitment

  • Beta — TR33 — 1985-1986
  • Bultaco — Pursang 250 — 1977-1979
  • Harley-Davidson — SX125 — 1974-1975
  • Harley-Davidson — Z90 — 1973-1975
  • Kawasaki — JS400 — 1976
  • Kawasaki — JS650 650SX — 1987-1990
  • Kawasaki — KE175 — 1979-1983
  • Kawasaki — KL250 — 1978-1984
  • Kawasaki — KLT200 — 1981-1984
  • Kawasaki — KZ200 — 1978
  • Kawasaki — KZ250 — 1980-1983
  • Kawasaki — KZ400/D — 1974-1977
  • Kawasaki — KZ400A Deluxe — 1977-1978
  • Kawasaki — KZ400B — 1978-1979
  • Kawasaki — KZ400C Special — 1978
  • Kawasaki — KZ400H LTD — 1979
  • Kawasaki — KZ400S Special — 1975-1977
  • Kawasaki — KZ440A LTD — 1980-1983
  • Kawasaki — KZ440B/G — 1980-1982
  • Kawasaki — KZ440D LTD Belt — 1980-1983
  • Kawasaki — KZ650B/F — 1977-1980
  • Kawasaki — KZ650C Custom — 1977-1979
  • Kawasaki — KZ650D SR — 1978-1979
  • Kawasaki — KZ650E LTD — 1980
  • Kawasaki — KZ650H CSR — 1981-1983
  • Kawasaki — W1 — 1966-1967
  • Kawasaki — W1SS — 1968-1969
  • Kawasaki — W2SS Commander — 1968-1969
  • Kawasaki — W2TT Commander — 1969
  • Polaris — Colt 295 — 1972
  • Polaris — Colt S/S 295 — 1972
  • Polaris — Electra 340 — 1976-1977
  • Polaris — Electra 440 — 1975-1976
  • Sno-Jet — Star-Jet 292 Yamaha — 1971-1973
  • Suzuki — DS80 — 1978-2000
  • Suzuki — DS185 — 1979-1980
  • Suzuki — GS400X — 1977-1978
  • Suzuki — GS425 — 1979
  • Suzuki — GT550 — 1975-1977
  • Suzuki — RL250 — 1974-1975
  • Suzuki — RM80 — 1977
  • Yamaha — DT100 — 1976-1983
  • Yamaha — MX100 — 1979-1983
  • Yamaha — RT100 — 1990-2000
  • Yamaha — SL292 — 1972-1973
  • Yamaha — SS396 — 1969
  • Yamaha — TY175 — 1976-1979
  • Yamaha — TY250 — 1974-1978
  • Yamaha — YZ50 — 1980

Marine Fitment

  • Fisher-Pierce — Bearcat 85
  • Piaggio Berkeley — KS150, KS200

Additional Engine and Power Unit Fitment

Also listed for numerous standalone engine and power unit applications, including:

  • Tecumseh engines — OHV100, OHV110, OHV115, OHV120, OHV125, OHV130, OHV135, OHV140, OHV145, OHV150, OHV155, OHV160, OHV165, OHV170, OHV175, OHV13, OHV14, OHV15, OHV16, OHV17, OHH45, OHH50, OHH55, OHH60, OHH65, OH180, OH195EA, OH195EP, OH195SA, OH195SP, OH318EA, OH318SA, OHM110, OHM120, OHSK50, OHSK55, OHSK60, OHSK65, OHSK70, OHSK75, OHSK80, OHSK90, OHSK100, OHSK110, OHSK120, OHSK125, OHSK130, OVRM35, OVRM40, OVRM50, OVRM55, OVRM60, OVRM65, OVRM105, OVRM120, OVRM905, OVXL/C120, OVXL120, OVXL125, OV195EA, OV350EA, OV358EA, OV490EA, OV691EA, OV691EP
  • Subaru / Robin engines — EH12, EH12-2
  • Engine and industrial power units — 305 5.0L V6 305cid, 351 V6 351cid, 401 6.6L V6 401cid, 478 7.8L V6 478cid, 702 11.5L V12 702cid
  • Additional engine/application identifiers — D11, D11K, P4CS, P4R, P6CS, P6R, TVT591
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Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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