Description
The Champion Copper Plus Spark Plug RC12YC5 is a dependable replacement spark plug designed to deliver consistent ignition performance, reliable heat control, and long service life across a wide range of automotive applications. Built with a copper core center electrode, it helps improve conductivity and supports accurate heat range control for dependable everyday operation.
As part of the Champion Copper Plus line, this spark plug is engineered for standard replacement service where maintaining OE-style fit, function, and ignition reliability is important. Its corrosion-resistant construction, resistor design, flat seat, and crush washer help support durable performance in both routine maintenance and replacement repair work. Built to ISO and SAE standards, the RC12YC5 is a trusted option for passenger cars, SUVs, and light-duty applications requiring a proven replacement spark plug.
Features
- Part number: 89
- Plug type: RC12YC5
- Champion Copper Plus spark plug
- OE-style replacement for dependable performance and durability
- Copper core center electrode for improved conductivity and heat control
- Accurate heat range control for longer service life
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
- Center electrode tip material: Copper
- Ground electrode tip material: Nickel
- Ground electrode core material: Nickel
- Ground electrode quantity: 1
- Pre-gap size: 0.050 in / 1.26 mm
- Hex size: 0.625 in / 15.880 mm
- Insulator height: 0.06 in
- Manufacturer heat range: 12
- Seat type: Flat
- Reach: 0.75 in
- Thread diameter: 14.000 mm / 0.551 in
- Resistor type: Yes
- Washer included: Yes
- Washer type: Crush
- Classification: Champion Copper Plus
- Grade type: Standard Replacement
- Electrical terminal type: Non-Removable Nut
- Hex type: Hex
- Center electrode design: Standard
- Indexed: No
- Part description: Spark Plug
- Subject to Prop 65: No
Vehicle Fitment
Acura
-
Legend — 1987 — 2.7L V6 2675cc
-
SLX — 1996-1997 — 3.2L V6 3165cc
-
SLX — 1998-1999 — 3.5L V6 3494cc
Asuna
-
Sunfire — 1993 — 1.8L L4 1809cc/110cid
Buick
-
Electra — 1985-1989 — 5.0L V8 307cid
-
LeSabre — 1985-1990 — 5.0L V8 307cid
-
Regal — 1986-1987 — 5.0L V8 307cid — Engine VIN: Y
-
Riviera — 1985 — 5.0L V8 307cid
Cadillac
-
Brougham — 1987-1990 — 5.0L V8 307cid
-
Fleetwood — 1986 — 5.0L V8 307cid
Chevrolet
-
Epica — 2004-2006 — 2.5L L6 2492cc
-
Nova — 1988 — 1.6L L4 1588cc/98cid — Engine VIN: 5
-
Optra — 2004-2007 — 2.0L L4 1998cc/122cid
-
Tracker — 2000-2003 — 2.0L L4 122cid
-
Tracker — 2001-2004 — 2.5L V6 2500cc
Chrysler
-
Cirrus — 1995-2000 — 2.4L L4 2429cc/148cid
-
Cirrus — 1995-1999 — 2.5L V6 2497cc/152cid
-
Crossfire — 2004-2008 — 3.2L V6 3200cc/195cid
-
Sebring — 1995-1999 — 2.5L V6 2497cc/152cid
-
Sebring — 1996-1998 — 2.4L L4 2429cc/148cid
-
Voyager — 2000 — 2.4L L4 2429cc/148cid
Dodge
-
Avenger — 1995-1999 — 2.5L V6 2497cc/152cid
-
Caravan — 1996-2000 — 2.4L L4 2429cc/148cid
-
Grand Caravan — 1996-1997 — 2.4L L4 2429cc/148cid
-
Stealth — 1991-1992 — 3.0L V6 2972cc/181cid — Engine VIN: B
-
Stealth — 1993-1996 — 3.0L V6 2972cc/181cid — Engine VIN: J
-
Stratus — 1995-2000 — 2.4L L4 2429cc/148cid
-
Stratus — 1995-1999 — 2.5L V6 2497cc/152cid
Eagle
-
Summit — 1992-1996 — 1.8L L4 1834cc/112cid
-
Summit — 1993-1996 — 2.4L L4 2351cc
Ford
-
Taurus — 1989-1995 — 3.0L V6 2986cc/182cid — Engine VIN: Y
-
Taurus — 1993-1995 — 3.2L V6 195cid
-
Thunderbird — 2002-2005 — 3.9L V8 242cid
Geo
-
Prizm — 1989-1997 — 1.6L L4 1588cc/98cid
-
Prizm — 1993-1997 — 1.8L L4 1762cc/107cid
-
Storm — 1992-1993 — 1.8L L4 1809cc/110cid
Honda
-
CRX — 1988-1991 — 1.5L L4 1493cc
-
Passport — 2000-2002 — 3.2L V6 3165cc
-
Prelude — 1988-1990 — 2.0L L4 1958cc
Hyundai
-
Accent — 2000-2003 — 1.5L L4 1495cc
-
Accent — 2001-2006 — 1.6L L4 1600cc
-
Accent — 2006-2011 — 1.6L L4 1599cc
-
Elantra — 1996-1997 — 1.8L L4 1795cc
-
Elantra — 1998 — 1.8L L4 1796cc
-
Elantra — 1999-2003 — 2.0L L4 1975cc
-
Entourage — 2007-2010 — 3.8L V6 3778cc/231cid
-
Scoupe — 1993-1995 — 1.5L L4 1495cc
-
Sonata — 2002-2005 — 2.7L V6 2656cc
-
Sonata — 2006-2008 — 2.4L L4 2359cc
-
Tiburon — 1997-2008 — 2.0L L4 1975cc
-
Tiburon — 1998-2001 — 2.0L L4 1997cc
-
Tiburon — 2003-2008 — 2.7L V6 2656cc
-
Tucson — 2005-2009 — 2.7L V6 2656cc
-
Veracruz — 2007-2012 — 3.8L V6 3778cc/231cid
-
XG300 — 2001 — 3.0L V6 2972cc
-
XG350 — 2002 — 3.5L V6 3500cc
INFINITI
-
G20 — 1999-2002 — 2.0L L4 2000cc
-
I30 — 1996-2001 — 3.0L V6 2988cc/182cid
-
J30 — 1993-1997 — 3.0L V6 2960cc/181cid
-
Q45 — 1990-1996 — 4.5L V8 4494cc
-
Q45 — 1997-2001 — 4.1L V8 4130cc
Isuzu
-
Amigo — 1998-2000 — 2.2L L4 2180cc
-
Amigo — 1998-2000 — 3.2L V6 3165cc
-
Impulse — 1992 — 1.8L L4 1809cc/110cid
-
Trooper — 1996-1997 — 3.2L V6 3165cc
-
Trooper — 1998-2002 — 3.5L V6 3475cc
-
VehiCROSS — 1999-2001 — 3.5L V6 3475cc
Jaguar
-
S-Type — 2000-2002 — 4.0L V8 3996cc/244cid
-
Super V8 — 2009 — 4.2L V8 4196cc/256cid
-
Vanden Plas — 1998-2003 — 4.0L V8 3996cc/244cid
-
XF — 2009-2010 — 4.2L V8 4196cc/256cid
-
XJ8 — 1998-1999 — 4.0L V8 3996cc/244cid
-
XK — 2007-2009 — 4.2L V8 4196cc/256cid
-
XK8 — 1997-1999 — 4.0L V8 3996cc/244cid
Kia
-
Amanti — 2004-2006 — 3.5L V6 3497cc
-
Amanti — 2007-2009 — 3.8L V6 3778cc/231cid
-
Optima — 2001 — 2.5L V6 2500cc
-
Optima — 2002-2004 — 2.7L V6 2656cc
-
Optima — 2006 — 2.4L L4 2359cc — Engine VIN: 3
-
Optima — 2007-2008 — 2.4L L4 2359cc
-
Sedona — 2002-2005 — 3.5L V6 3497cc
-
Sephia — 1995 — 1.6L L4 1597cc — Engine VIN: 3
-
Sephia — 1995-1997 — 1.8L L4 1839cc
-
Sephia — 1996-1997 — 1.6L L4 1597cc
-
Sephia — 1998-2001 — 1.8L L4 1793cc
-
Sorento — 2003-2006 — 3.5L V6 3497cc
-
Sorento — 2007-2009 — 3.8L V6 3778cc/231cid
-
Spectra — 2004 — 2.0L L4 1975cc
-
Sportage — 2005-2010 — 2.0L L4 1975cc
-
Sportage — 2005-2010 — 2.7L V6 2656cc
Lincoln
-
LS — 2000-2006 — 3.9L V8 242cid
Mazda
-
323 — 1990-1995 — 1.8L L4 1839cc
-
626 — 1993-2002 — 2.0L L4 1991cc
-
929 — 1992-1995 — 3.0L V6 2954cc/180cid
-
MPV — 1996-1998 — 3.0L V6 2954cc/180cid
-
MX-3 — 1992-1995 — 1.6L L4 1597cc
-
MX-3 — 1992-1995 — 1.8L V6 1845cc
-
MX-3 — 1996 — 1.6L L4 1597cc/97cid
-
MX-6 — 1993-1997 — 2.0L L4 1991cc
-
Miata — 1994-2005 — 1.8L L4 1839cc
-
Protege — 1990-2000 — 1.8L L4 1839cc
-
Protege — 2001-2003 — 2.0L L4 2000cc
-
Protege — 2003 — 2.0L L4 1998cc/122cid
Mercury
-
LN7 — 1982 — 1.6L L4 1598cc/98cid — Engine VIN: 2
-
LN7 — 1982 — 1.6L L4 1598cc/98cid — Engine VIN: 4
-
Tracer — 1991-1996 — 1.8L L4 112cid
-
Villager — 1999-2002 — 3.3L V6 3275cc
Mitsubishi
-
Diamante — 1997-2004 — 3.5L V6 3497cc/215cid
-
Expo — 1993-1995 — 2.4L L4 2351cc
-
Galant — 1994-2003 — 2.4L L4 2351cc
-
Galant — 2001-2003 — 3.0L V6 2972cc/181cid
-
Lancer — 2002-2004 — 2.0L L4 2000cc
-
Lancer — 2005-2007 — 2.0L L4 1999cc/122cid
-
Lancer — 2011-2017 — 2.4L L4 2360cc/144cid
-
Mirage — 1993-2002 — 1.8L L4 1834cc/112cid
-
Montero Sport — 1997-1999 — 2.4L L4 2351cc
-
Montero Sport — 1999-2003 — 3.0L V6 2972cc/181cid
-
Montero Sport — 1999-2004 — 3.5L V6 3497cc/215cid
-
Outlander — 2003 — 2.4L L4 2351cc
-
Outlander — 2011-2013 — 2.4L L4 2360cc/144cid
Nissan
-
240SX — 1991-1998 — 2.4L L4 2389cc
-
300ZX — 1990-1996 — 3.0L V6 2960cc/181cid
-
Altima — 1993-2001 — 2.4L L4 2389cc
-
D21 — 1986-1989 — 3.0L V6 2960cc/181cid
-
Frontier — 1998-1999 — 2.4L L4 2389cc
-
Frontier — 2001-2004 — 3.3L V6 3275cc
-
Maxima — 1985-1991 — 3.0L V6 2960cc/181cid
-
Maxima — 1992-1994 — 3.0L V6 2960cc/181cid — Engine VIN: H — Engine Designation: VG30E
-
Maxima — 1995-2001 — 3.0L V6 2988cc/182cid
-
NX — 1991-1993 — 1.6L L4 1597cc/97cid
-
Pathfinder — 1987-1989 — 3.0L V6 2960cc/181cid
-
Pulsar NX — 1989-1990 — 1.6L L4 1597cc/97cid
-
Quest — 2001-2002 — 3.3L V6 3275cc
-
Sentra — 1989-1999 — 1.6L L4 1597cc/97cid
-
Sentra — 2000-2001 — 2.0L L4 1998cc/122cid
-
Stanza — 1984-1989 — 2.0L L4 1974cc — Position: Exhaust Side
-
Xterra — 2001-2004 — 2.4L L4 2389cc
-
Xterra — 2002-2004 — 3.3L V6 3275cc
Oldsmobile
-
Custom Cruiser — 1985-1990 — 5.0L V8 307cid
-
Cutlass Salon — 1985-1987 — 5.0L V8 307cid
-
Cutlass Supreme — 1985-1987 — 5.0L V8 307cid — Engine VIN: Y
-
Cutlass Supreme — 1988 — 5.0L V8 307cid
-
Delta 88 — 1985 — 5.0L V8 307cid
-
Toronado — 1985 — 5.0L V8 307cid
Plymouth
-
Breeze — 1996-2000 — 2.4L L4 2429cc/148cid
-
Grand Voyager — 1996-1997 — 2.4L L4 2429cc/148cid
-
Voyager — 1996-2000 — 2.4L L4 2429cc/148cid
Pontiac
-
Parisienne — 1986 — 5.0L V8 307cid — Engine VIN: Y
-
Safari — 1987-1989 — 5.0L V8 307cid
Sterling
-
825 — 1987-1988 — 2.5L V6 2494cc
-
827 — 1989-1991 — 2.7L V6 2675cc
Subaru
-
Baja — 2005-2006 — 2.5L H4 2458cc
Suzuki
-
Esteem — 2001 — 1.6L L4 1590cc/97cid
-
Esteem — 2001-2002 — 1.8L L4 1790cc
-
Grand Vitara — 2001 — 2.7L V6 2737cc
-
SX4 — 2007-2009 — 2.0L L4 1997cc/122cid
-
Vitara — 1999-2002 — 1.6L L4 1590cc/97cid
-
XL-7 — 2002-2004 — 2.7L V6 2737cc
Toyota
-
Camry — 1987-1991 — 2.0L L4 1998cc/122cid
-
Camry — 1992-1995 — 2.2L L4 2164cc
-
Celica — 1986-1989 — 2.0L L4 1998cc/122cid — Engine Designation: 3S-GELC
-
Celica — 1987-1989 — 2.0L L4 1998cc/122cid — Engine Designation: 3S-FE
-
Celica — 1990 — 2.2L L4 2164cc
-
Corolla — 1985-1987 — 1.6L L4 1587cc
-
Corolla — 1988 — 1.6L L4 1587cc — Engine Designation: 4A-GELC
-
Corolla — 1988-1989 — 1.6L L4 1587cc — Engine Designation: 4A-FE
-
Corolla — 1988-1989 — 1.6L L4 1587cc — Engine Designation: 4AF
-
Cressida — 1989-1992 — 3.0L L6 2954cc
-
MR2 — 1985-1989 — 1.6L L4 1587cc
-
Paseo — 1992-1994 — 1.5L L4 1497cc
-
Supra — 1986-1992 — 3.0L L6 2954cc
-
Supra — 1993-1997 — 3.0L L6 2997cc
-
Tundra — 2000-2004 — 3.4L V6 3378cc
Volkswagen
-
Beetle — 2004 — 2.0L L4 1984cc/121cid — Engine Designation: BGD