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The aFe SCORCHER ignition coil 77-92012 is an upgraded direct-fit replacement for the factory ignition coil on the 2005-2006 Buick Rainier, delivering higher primary voltage and a hotter, longer-duration spark for more complete combustion. A stronger spark translates into improved throttle response, more consistent power delivery across the RPM range, and measurably better cold-start performance. The 77-92012 connects to the factory wiring harness using the OEM connector with no modification, making this one of the easiest performance upgrades available for your ignition system.
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2005 | Buick | Rainier | CXL Plus |
| 2005-2006 | Buick | Rainier | CXL |
| 2005-2006 | Chevrolet | SSR | |
| 2005-2006 | GMC | Envoy | Denali |
| 2005-2006 | Pontiac | GTO | |
| 2005-2008 | Pontiac | Grand Prix | GXP |
| 2005-2013 | Chevrolet | Corvette | |
| 2006-2007 | Cadillac | CTS | V |
| 2006-2007 | Chevrolet | Monte Carlo | SS |
| 2006-2007 | Chevrolet | Trailblazer | LS |
| 2006-2008 | Chevrolet | Trailblazer | LT |
| 2006-2009 | Chevrolet | Impala | SS |
| 2006-2009 | Chevrolet | Trailblazer | SS |
| 2006-2013 | Chevrolet | Corvette | Z06 |
| 2007 | Chevrolet | Suburban 2500 | LTZ |
| 2007-2008 | Cadillac | Escalade | |
| 2007-2008 | GMC | Yukon | Denali |
| 2007-2008 | GMC | Yukon XL 1500 | Denali |
| 2007-2009 | Chevrolet | Avalanche | LS |
| 2007-2009 | Chevrolet | Avalanche | LT |
| 2007-2009 | Chevrolet | Avalanche | LTZ |
| 2007-2009 | Chevrolet | Suburban 1500 | LS |
| 2007-2009 | Chevrolet | Suburban 1500 | LT |
| 2007-2009 | Chevrolet | Suburban 1500 | LTZ |
| 2007-2009 | Chevrolet | Suburban 2500 | LS |
| 2007-2009 | Chevrolet | Suburban 2500 | LT |
| 2007-2009 | Chevrolet | Tahoe | LS |
| 2007-2009 | Chevrolet | Tahoe | LT |
| 2007-2009 | Chevrolet | Tahoe | LTZ |
| 2007-2009 | GMC | Yukon | SLE |
| 2007-2009 | GMC | Yukon | SLT |
| 2007-2009 | GMC | Yukon XL 1500 | SLE |
| 2007-2009 | GMC | Yukon XL 1500 | SLT |
| 2007-2009 | GMC | Yukon XL 2500 | SLE |
| 2007-2009 | GMC | Yukon XL 2500 | SLT |
| 2007-2014 | GMC | Sierra 2500 HD | WT |
| 2007-2014 | GMC | Sierra 3500 HD | WT |
| 2007-2017 | GMC | Sierra 2500 HD | SLT |
| 2007-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2007-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2007-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2007-2019 | GMC | Sierra 2500 HD | SLE |
| 2007-2019 | GMC | Sierra 3500 HD | SLE |
| 2007-2019 | GMC | Sierra 3500 HD | SLT |
| 2008 | Cadillac | Escalade | Platinum |
| 2008 | Chevrolet | Corvette | 427 Limited Edition Z06 |
| 2008 | Chevrolet | Trailblazer | |
| 2008 | GMC | Sierra 1500 | Denali |
| 2008 | Hummer | H2 | |
| 2008-2009 | Chevrolet | Silverado 1500 | LS |
| 2008-2009 | GMC | Savana 1500 | |
| 2008-2009 | GMC | Savana 1500 | LS |
| 2008-2009 | GMC | Savana 1500 | LT |
| 2008-2009 | GMC | Savana 2500 | |
| 2008-2009 | GMC | Savana 2500 | LS |
| 2008-2009 | GMC | Savana 2500 | LT |
| 2008-2009 | GMC | Savana 3500 | |
| 2008-2009 | GMC | Savana 3500 | LS |
| 2008-2009 | GMC | Savana 3500 | LT |
| 2008-2009 | GMC | Sierra 1500 | SL |
| 2008-2009 | GMC | Sierra 1500 | SLE |
| 2008-2009 | GMC | Sierra 1500 | SLT |
| 2008-2009 | Hummer | H3 | Alpha |
| 2008-2009 | Pontiac | G8 | GT |
| 2008-2013 | Chevrolet | Silverado 1500 | LT |
| 2008-2013 | Chevrolet | Silverado 1500 | LTZ |
| 2008-2013 | Chevrolet | Silverado 1500 | WT |
| 2008-2013 | Chevrolet | Tahoe | Hybrid |
| 2008-2013 | GMC | Sierra 1500 | WT |
| 2008-2013 | GMC | Yukon | Hybrid |
| 2009 | Hummer | H3 | Championship Series |
| 2009 | Pontiac | G8 | GXP |
| 2009-2012 | Chevrolet | Colorado | LT |
| 2009-2012 | GMC | Canyon | SLE |
| 2009-2012 | GMC | Canyon | SLT |
| 2009-2013 | Cadillac | Escalade | Hybrid |
| 2009-2013 | Chevrolet | Corvette | ZR1 |
| 2010-2013 | Cadillac | Escalade | Hybrid Platinum |
| 2010-2013 | Chevrolet | Corvette | Grand Sport |
| 2010-2013 | GMC | Yukon | Denali Hybrid |
| 2010-2015 | Chevrolet | Camaro | LS |
| 2010-2015 | Chevrolet | Camaro | LT |
| 2010-2015 | Chevrolet | Camaro | SS |
| 2011 | Chevrolet | Corvette | Z06 Carbon |
| 2011 | Chevrolet | Silverado 1500 | LS |
| 2012-2015 | Chevrolet | Camaro | ZL1 |
| 2013 | Chevrolet | Corvette | 427 |
| 2014 | GMC | Sierra 2500 HD | Denali |
| 2014-2015 | Chevrolet | Camaro | Z/28 |
| 2014-2019 | GMC | Sierra 3500 HD | Denali |
| 2015-2017 | Chevrolet | Caprice | PPV |
| 2015-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2015-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2015-2019 | GMC | Sierra 2500 HD | |
| 2015-2019 | GMC | Sierra 3500 HD | |
| 2016 | GMC | Savana 2500 | |
| 2016-2020 | Chevrolet | LCF 3500 | |
| 2016-2020 | GMC | Savana 2500 | LS |
| 2016-2020 | GMC | Savana 2500 | LT |
| 2016-2020 | GMC | Savana 3500 | |
| 2016-2020 | GMC | Savana 3500 | LS |
| 2016-2020 | GMC | Savana 3500 | LT |
| 2018-2020 | GMC | Savana 2500 | |
| 2019 | GMC | Sierra 2500 HD | Denali |
| 2019 | GMC | Sierra 2500 HD | SLT |
| Detail | Value |
|---|---|
| Part Number | 77-92012 |
| Brand | aFe Power |
| Product Line | aFe SCORCHER |
| Connector | Direct OEM replacement |
| Quantity | Single coil unless specified |
| UPC | See listing |
If one coil has failed and the others are original, replacing all coils at the same time is recommended. Coils age together and the others are statistically close to failure. Replacing them all during a single service is more cost-effective than multiple labor visits.
Does this coil work with my existing spark plugs?Yes. The 77-92012 is compatible with OEM-spec and most popular aftermarket performance spark plugs. If you are running a wider plug gap for performance tuning, confirm the coil's output voltage is sufficient for that gap with your tuner.
Will this coil resolve a P0300 misfire code?If the misfire is confirmed to be coil-related, replacing the suspect coil with the 77-92012 should resolve the fault. If misfires persist after coil replacement, test the spark plug, plug wire (if applicable), and injector for the affected cylinder before drawing further conclusions.
How long do these coils typically last?With normal service, aFe SCORCHER coils are designed for extended service life significantly beyond the OEM replacement interval. Exact longevity depends on operating conditions, plug gap, and maintenance history. Inspect coils when servicing spark plugs.
Is this a direct plug-in replacement or does it need an adapter?This is a direct plug-in replacement using the factory wiring harness connector. No adapter, splice, or modification is required. Verify the part number against your vehicle's coil connector type using the fitment data above.
Can I use this coil with a standalone ECU or aftermarket ignition system?In most cases, yes, but confirm coil primary resistance and dwell requirements are compatible with your aftermarket ECU's ignition driver outputs. Consult your ECU manufacturer for coil specification requirements.
Does this require any ECU programming after installation?No. The 77-92012 is a direct plug-and-play replacement that does not require ECU reflashing or parameter changes. Clear any existing misfire fault codes after installation and monitor for any recurrence during the first drive cycle.
What is the warranty on this ignition coil?aFe Power provides a limited manufacturer warranty on the 77-92012 covering defects in materials and workmanship. Contact aFe Power or us for current warranty terms.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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