Champion 7318 Spark Plug

Description

The Champion 7318 Spark Plug is part of Champion’s Double Platinum Power™ line, engineered to deliver reliable ignition performance, long service life, and improved spark efficiency across a wide range of automotive, marine, powersports, and equipment applications. Featuring Champion’s Heat-Active™ alloy, a fine-wire platinum center electrode, and a platinum pad ground electrode, this spark plug is designed to maintain stable operating temperature and dependable combustion under varying engine loads.

Its double platinum design helps resist wear for extended service intervals, while the fine-wire center electrode and V-trimmed ground electrode promote sharper spark focus and improved ignitability. With a flat seat, crush washer, resistor construction, and non-removable terminal nut, the Champion 7318 is a premium OE-style replacement for many passenger vehicles, trucks, SUVs, motorcycles, ATVs, personal watercraft, and industrial equipment.

Built for durability and consistent performance, the Champion 7318 is a practical replacement choice for engines requiring dependable spark delivery and long-lasting service.

Features

• Double Platinum Power™ premium spark plug design

• Platinum center and ground electrodes for greater wear resistance

• Fine-wire center electrode for greater ignitability

• V-trimmed ground electrode promotes sharper spark focus

• Heat-Active™ alloy allows electrodes to reach optimal temperature

• Maintains stable operating temperature under all engine loads

• Resistor spark plug design for compatible ignition systems

• Flat seat with crush washer for proper sealing

• Standard replacement spark plug for automotive, marine, and equipment applications

• Manufactured for long-lasting durability and consistent performance

Specifications

• Part Description: Spark Plug

• Center Electrode Tip Material: Platinum

• Center Electrode Design: Fine Wire

• Center Electrode Diameter: 0.1 in

• Ground Electrode Quantity: 1

• Ground Electrode Material: Platinum Pad Surface

• Ground Electrode Core Material: Platinum

• Ground Electrode Tip Material: Platinum

• Pre-Gap Size: 0.040 in / 1.02 mm

• Hex Size: 0.625 in / 15.880 mm

• Insulator Height: 0.12 in

• Insulator Projection: 0.12 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

• Electrical Terminal Type: Non-Removable Nut

• Hex Type: Hex

• Indexed: No

• Installed Height: 1.99 in

• Taper Diameter: 0.27 in

• Classification: Champion Double Platinum Power

• Grade Type: Standard Replacement

• Subject to Prop 65: No

Fitment

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

Automotive Applications

Acura

• CL (1997–2003) – 2.2L L4, 2.3L L4, 3.0L V6, 3.2L V6

• EL (1997–2000) – 1.6L L4

• Integra (1990–2001) – 1.8L L4

• Legend (1991–1995) – 3.2L V6

• MDX (2001–2002) – 3.5L V6

• NSX (1991–2005) – 3.0L and 3.2L V6

• RL (1996–2004) – 3.5L V6

• RSX (2004–2006) – 2.0L L4

• TL (1995–2003) – 2.5L L5 and 3.2L V6

• Vigor (1992–1994) – 2.5L L5

BMW

• 750iL (1988–1998) – 5.0L and 5.4L V12

• 850CSi (1994–1995) – 5.6L V12

• 850Ci (1993–1997) – 5.0L and 5.4L V12

• 850i (1991–1992) – 5.0L V12

Cadillac

• CTS (2003–2004) – 3.2L V6

• Catera (1997–1998) – 3.0L V6

Chevrolet

• Prizm (2000–2002) – 1.8L L4

Chrysler

• 200 (2011–2014) – 2.4L L4

• Aspen (2007) – 4.7L V8

• Sebring (2007–2010) – 2.4L L4

Daewoo

• Leganza (1999–2002) – 2.2L L4

• Nubira (1999–2002) – 2.0L L4

Dodge

• Avenger (2008–2014) – 2.4L L4

• Caliber (2007–2012) – 1.8L L4, 2.0L L4, 2.4L L4

• Dakota (2000–2007) – 4.7L V8

• Durango (2000–2007) – 4.7L V8

• Journey (2009–2020) – 2.4L L4

• Ram 1500 (2002–2007) – 4.7L V8

Ford

• Probe (1993–1997) – 2.5L V6

Honda

• Accord (1990–2002) – 2.2L L4, 2.3L L4, 2.7L V6, 3.0L V6

• CR-V (1997–2001) – 2.0L L4

• Civic (1992–2000) – 1.5L L4 and 1.6L L4

• Civic del Sol (1993–1997) – 1.5L L4 and 1.6L L4

• Odyssey (1995–2004) – 2.2L L4, 2.3L L4, 3.5L V6

• Pilot (2003–2004) – 3.5L V6

• Prelude (1990–1996) – 2.0L L4, 2.1L L4, 2.2L L4, 2.3L L4

Isuzu

• Oasis (1996–1999) – 2.2L L4 and 2.3L L4

Jeep

• Commander (2006–2007) – 4.7L V8

• Compass (2007–2017) – 2.0L L4 and 2.4L L4

• Grand Cherokee (1999–2007) – 4.7L V8

• Patriot (2007–2017) – 2.0L L4 and 2.4L L4

Lexus

• GS300 (1994–2005) – 3.0L L6

• IS300 (2001–2005) – 3.0L L6

• LX450 (1996–1997) – 4.5L L6

Mazda

• 626 (1988–2002) – 2.2L L4 and 2.5L V6

• 929 (1990–1991) – 3.0L V6

• B2600 (1989–1993) – 2.6L L4

• MPV (1990–1995) – 2.6L L4 and 3.0L V6

• MX-6 (1993–1997) – 2.5L V6

• Millenia (1995–2002) – 2.3L V6 and 2.5L V6

• Protege (1999–2003) – 1.6L L4

Mercedes-Benz

• C230 (1998) – 2.3L L4

• E55 AMG (1999–2002) – 5.5L V8

Mitsubishi

• Eclipse (2001–2002) – 3.0L V6

• Montero (1994–2002) – 3.5L V6

• Raider (2006–2007) – 4.7L V8

Nissan

• 240SX (1989–1990) – 2.4L L4

• Axxess (1990–1995) – 2.4L L4

• D21 (1990–1994) – 2.4L L4

• Frontier (2000) – 2.4L L4

• Maxima (1992–1994) – 3.0L V6

• Pickup (1995–1997) – 2.4L L4

• Stanza (1990–1992) – 2.4L L4

Pontiac

• Vibe (2003–2006) – 1.8L L4

Saturn

• Astra (2008–2009) – 1.8L L4

• L300, LS2, LW2, Vue – 3.0L V6 applications

Scion

• xA (2004–2006) – 1.5L L4

• xB (2004–2006, 2013–2015) – 1.5L L4 and 2.4L L4

Suzuki

• Vitara (2000–2003) – 2.0L L4

Toyota

• 4Runner (1996–2002) – 2.7L L4 and 3.4L V6

• Camry (1996–2001) – 2.2L L4

• Celica (1996–2005) – 1.8L L4

• Corolla (1995–2004) – 1.8L L4

• Echo (2000–2005) – 1.5L L4

• Land Cruiser (1993–1997) – 4.5L L6

• MR2 Spyder (2000–2005) – 1.8L L4

• Paseo (1995–1999) – 1.5L L4

• Pickup (1988–1995) – 3.0L V6

• Previa (1991–1995) – 2.4L L4

• Prius C (2012–2019) – 1.5L L4

• RAV4 (1996–2003) – 2.0L L4

• Supra (1993–1998) – 3.0L L6

• T100 (1993–1998) – 2.7L L4, 3.0L V6, and 3.4L V6

• Tacoma (1995–2004) – 2.4L L4, 2.7L L4, and 3.4L V6

• Tercel (1995–1999) – 1.5L L4

• Yaris (2006–2018) – 1.5L L4

Volkswagen

• Beetle (2001) – 2.0L L4

• Corrado (1992–1995) – 2.8L V6

• Passat (1993–1997) – 2.8L V6

Powersports and Equipment Applications

Compatible with various Polaris, turf, industrial, and equipment applications, including:

• Polaris ACE 500 (2017)

• Polaris Ranger 500 (2017)

• Polaris Sportsman 450 HO (2017)

• Multiple mower, generator, and equipment applications from Kohler, Ariens, Craftsman, Husqvarna, Toro, Vermeer, Bunton, Simplicity, Gravely, Bobcat, Troy-Bilt, John Deere, Land Pride, Echo, Generac, Briggs & Stratton, Scag, Jacobsen, Grasshopper, and additional equipment brands shown in the supplied fitment data

Marine Applications

Compatible with select marine and watercraft applications, including:

• Sea-Doo 3D 947 DI (2006–2007)

• Sea-Doo GTX DI (2000–2003)

• Sea-Doo LRV DI (2002–2003)

• Sea-Doo RX DI (2000–2003)

• Sea-Doo XP DI (2003–2004)

• Toyota Epic 21, Epic 22, Epic VT300i, SX, and S22

• Polaris Optimax EX2100/LE2100 Jet Drive

• Mercury Marine Optimax

• Hanson Marine Engines Montana Troller

• Additional listed marine applications in the supplied fitment data

Verify exact fitment by vehicle or equipment model, year, engine family, and manufacturer specifications before purchase or installation.