CHAMPION part description

Product Description

Champion Iridium Spark Plug RS12WMPB4 Carton of 4

Application Summary

Buick Lt. Trk.: 5.3L V8 (07-04); Buick Pass. Car: 3.9L V6 (11-09), 5.3L V8 (09-08); Buick Van: 3.9L V6 (07-06); Cadillac Lt. Trk.: 5.3L V8 (05-02), 6.0L V8 (13-02), 6.2L V8 (14-07); Cadillac Pass. Car: 5.7L V8 (05-04), 6.0L V8 (07-06); Chevrolet Lt. Trk.:

Features & Benefits

  • Champion Iridium - Maximum Performance. Premium Spark Plug
  • Iridium center electrode delivers maximum life
  • Fine-wire center electrode and V-trimmed for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Maintains stable operating temperature under all engine loads
  • Heat-ActiveTM alloy allows electrodes to reach optimal temperature quickly

Product Attributes

Ground Electrode Tip Design J Gap
Ground Electrode Core Material Platinum
Washer Included No
Electrical Terminal Type Non-Removable Nut
Center Electrode Tip Material Iridium
Pre-Gap Size 0.050 IN
Ground Electrode Quantity 1
Hex Size 0.625 IN
Insulator Height 0.12 IN
Manufacturer Heat Range 12
Seat Type Tapered
Reach 0.689 IN
Thread Diameter 0.551 IN
Resistor Type Yes
9507 Hex
9746 No
Classification Champion Iridium
Part Description Spark Plug
Plug Type RS12WMPB4

Additional Information

Country of Origin (Primary) US
Harmonized Tariff Code (Schedule B) 8511100000
Harmonized Tariff Code (HTS) 8511100000
UPC 00080066613055

Part Interchanges

CHAMPION 9405 Cross Reference

We have 1 alternatives for the 9405 by CHAMPION:

Fits Vehicles

  • Freightliner S2G (2014-2018)
  • Freightliner XB Line (2014-2015)
  • Freightliner XC Modular Rail (2013)
  • Freightliner B2 (2015-2019)
  • Freightliner MT55 (2011-2021)
  • Freightliner MT45 (2011-2021)
  • Chevrolet LCF 3500 (2016-2017)
  • Chevrolet LCF 4500 (2016-2017)
  • GMC C8500 Topkick (2007)
  • Workhorse Custom Chassis W62 (2011-2012)
  • Chevrolet Suburban 3500 HD (2016-2019)
  • GMC Sierra 2500 HD Classic (2007)
  • GMC Sierra 1500 HD Classic (2007)
  • Chevrolet Silverado 1500 HD Classic (2007)
  • Chevrolet Silverado 3500 Classic (2007)
  • GMC Sierra 3500 Classic (2007)
  • GMC Sierra 1500 Classic (2007)
  • Chevrolet Silverado 2500 HD Classic (2007)
  • Chevrolet Silverado 1500 Classic (2007)
  • Workhorse Custom Chassis W42 (2006-2012)
  • Workhorse Custom Chassis P42 (2003-2005)
  • Saturn Relay (2006-2007)
  • Chevrolet Suburban (2014)
  • Chevrolet C3500HD (2000)
  • Cadillac Escalade EXT (2002-2013)
  • Cadillac Escalade ESV (2003-2014)
  • Chevrolet Trailblazer EXT (2003-2006)
  • GMC Envoy XL (2003-2006)
  • GMC Envoy XUV (2004-2005)
  • Chevrolet SS (2014)
  • Isuzu NPR-HD (2003-2009, 2012-2017)
  • Isuzu NPR (2003-2017)
  • Workhorse FasTrack FT1801 (2004-2005)
  • Workhorse FasTrack FT1601 (2004-2005)
  • Workhorse FasTrack FT1461 (2004-2005)
  • Workhorse W42 (2009-2011)
  • Workhorse W62 (2007-2011)
  • GMC Savana 4500 (2009-2020)
  • Chevrolet Express 4500 (2009-2020)
  • Chevrolet Caprice (2011-2017)
  • GMC B7 (1999-2000)
  • Chevrolet C7500 Kodiak (1999-2000)
  • Chevrolet C6500 Kodiak (1999-2000)
  • Hummer H3T (2009-2010)
  • Buick Lucerne (2009-2011)
  • GMC Canyon (2009-2012)
  • Chevrolet Colorado (2009-2012)
  • Buick Allure (2008-2009)
  • Chevrolet W4500 Tiltmaster (2003-2010)
  • GMC W4500 Forward (2003-2010)
  • Chevrolet W3500 Tiltmaster (2003-2009)
  • GMC W3500 Forward (2004-2008)
  • Hummer H3 (2008-2010)
  • Pontiac G8 (2008-2009)
  • Saturn Vue (2008-2010)
  • GMC Sierra 3500 HD (2007-2019)
  • Chevrolet Silverado 3500 HD (2007-2019)
  • Buick LaCrosse (2008-2009)
  • Saturn Aura (2007-2008)
  • Chevrolet Avalanche (2007-2013)
  • Pontiac Montana (2006-2009)
  • Chevrolet Uplander (2006-2009)
  • Chevrolet Trailblazer (2006-2009)
  • Buick Terraza (2006-2007)
  • Chevrolet Impala (2006-2011)
  • Hummer H2 (2003-2009)
  • Pontiac G6 (2006-2010)
  • Saab 9-7x (2005-2009)
  • GMC Envoy (2005-2009)
  • Pontiac GTO (2004-2006)
  • Chevrolet SSR (2003-2006)
  • Cadillac CTS (2004-2007)
  • Buick Rainier (2004-2007)
  • Pontiac Grand Prix (1989-1990, 2005-2008)
  • Pontiac Firebird (1998-2002)
  • Oldsmobile Cutlass Supreme (1993)
  • GMC Yukon XL 2500 (2000-2013)
  • GMC Yukon XL 1500 (2000-2014)
  • GMC Yukon (2000-2014)
  • GMC Sierra 2500 HD (2001-2019)
  • GMC Sierra 3500 (2001-2006)
  • GMC Sierra 2500 (1999-2004)
  • GMC Sierra 1500 HD (2001-2003, 2005-2006)
  • GMC Savana 3500 (2003-2020)
  • GMC Sierra 1500 (1999-2013)
  • GMC Savana 2500 (2003-2020)
  • GMC Savana 1500 (2003-2014)
  • GMC P3500 (1996-1999)
  • GMC K3500 (1996-2000)
  • GMC K2500 Suburban (1996-1999)
  • GMC K2500 (1996-2000)
  • GMC C3500 (1996-2000)
  • GMC C2500 (1996-2000)
  • Chevrolet Tahoe (2000-2014)
  • Chevrolet Suburban 1500 (2000-2014)
  • Chevrolet Suburban 2500 (2000-2013)
  • Chevrolet Silverado 3500 (2001-2006)
  • Chevrolet Silverado 2500 HD (2001-2019)
  • Chevrolet Silverado 2500 (1999-2004)
  • Chevrolet Silverado 1500 HD (2001-2003, 2005-2006)
  • Chevrolet Silverado 1500 (1999-2013)
  • Chevrolet S10 (1994-1997)
  • Chevrolet P30 (1996-1999)
  • Chevrolet Monte Carlo (1995, 2006-2007)
  • Chevrolet Malibu (1998-1999, 2006-2010)
  • Chevrolet K3500 (1996-2000)
  • Chevrolet K2500 Suburban (1996-1999)
  • Chevrolet K2500 (1996-2000)
  • Chevrolet Express 3500 (2003-2020)
  • Chevrolet Express 2500 (2003-2020)
  • Chevrolet Express 1500 (2003-2014)
  • Chevrolet Corvette (1996, 2004-2013)
  • Chevrolet Cavalier (1998-2002)
  • Chevrolet Camaro (1998-2002, 2010-2015)
  • Chevrolet C3500 (1996-2000)
  • Chevrolet C2500 (1996-2000)
  • Chevrolet Beretta (1987-1993)
  • Chevrolet Avalanche 1500 (2002-2006)
  • Cadillac Escalade (2002-2014)
  • Buick Skyhawk (1988)
  • Isuzu Ascender (2003-2006)

Don't know your part number?

Take a photo and we'll identify it!

Recommended Products

More from CHAMPION (Browse all)