Product Description
Genuine GM 12585673 Front Crankshaft Seal
Fits LS-Based 4.8L 5.3L 5.7L 6.0L 6.2L Gasoline V8 Engines | Front Timing Cover Harmonic Balancer Seal
Replace the front timing cover harmonic balancer / crankshaft seal on your LS-based engine with the Genuine GM 12585673 Front Crankshaft Seal. Designed for many LS-based 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L gasoline V8 applications, this original equipment seal provides the fit, durability, and service life expected from a GM replacement component. It is a smart choice during front cover service, timing chain work, camshaft swaps, harmonic balancer installation, engine resealing, or high-mileage LS maintenance where proper seal fit in the timing cover is critical.
Key Features & Benefits
- Original Equipment Front Crankshaft Seal: Genuine GM replacement seal for the front timing cover / harmonic balancer area on compatible LS-based V8 engines. Ideal for engine resealing, front cover service, and harmonic balancer replacement.
- Fits Popular LS-Based Engines: Designed for many LS-based 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L gasoline V8 applications, including common car, truck, SUV, van, and performance engine platforms.
- Proper Timing Cover Fit: OEM-quality construction helps provide the correct tightness of fit in the front timing cover, making it a preferred option over lower-quality replacement seals that may fit loosely.
- Great for LS Service Work: Recommended during camshaft swaps, timing chain service, oil pump work, front cover removal, harmonic balancer service, engine rebuilds, and general LS engine maintenance.
- Reliable OE Replacement: Built to deliver the same performance, durability, and service life expected from an original GM component for compatible LS front crankshaft seal applications.
Specs
- Part Number: 12585673
- Product Type: Front crankshaft seal / harmonic balancer seal
- Install Location: Front timing cover
- Engine Family: LS-based gasoline V8 engines
- Engine Sizes: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
Notes
- Application: Front crankshaft / harmonic balancer seal for compatible LS-based gasoline V8 engines.
- Engine Compatibility: Fits listed LS1, LS2, LS3, LS6, L99, LSA, L92, L9H, L94, L76, L77, LY6, L96, LFA, LZ1, LY5, LMG, LMF, LH6, LC9, LY2, L20, L33, LQ4, LQ9, LR4, LM7, L59, LS4, LH8, and LH9 applications.
- Service Recommendation: Inspect or replace during timing cover removal, harmonic balancer service, oil pump service, timing chain replacement, camshaft swaps, or engine resealing.
- Fitment Verification: Verify vehicle year, engine size, engine code, and front cover seal application before purchase.
Key Fitments
- Buick LaCrosse 2008-2009 gasoline V8 models
- Buick Rainier 2004-2007 gasoline V8 models
- Cadillac CTS-V 2004-2015 gasoline V8 models
- Cadillac Escalade 2002-2014 gasoline V8 models
- Chevrolet Avalanche 2002-2013 gasoline V8 models
- Chevrolet Camaro 1998-2015 gasoline V8 models
- Chevrolet Caprice 2011-2016 gasoline V8 models
- Chevrolet Colorado 2010-2012 gasoline V8 models
- Chevrolet Corvette 1997-2013 gasoline V8 models
- Chevrolet Express 1500 2003-2012 gasoline V8 models
- Chevrolet Express 2500 2003-2020 gasoline V8 models
- Chevrolet Express 3500 2003-2020 gasoline V8 models
- Chevrolet Express 4500 2010-2020 gasoline V8 models
- Chevrolet Impala SS 2006-2009 gasoline V8 models
- Chevrolet Monte Carlo SS 2007 gasoline V8 models
- Chevrolet Silverado 1500 2000-2013 gasoline V8 models
- Chevrolet Silverado 2500 1999-2019 gasoline V8 models
- Chevrolet Silverado 3500 2001-2019 gasoline V8 models
- Chevrolet SS 2015 gasoline V8 models
- Chevrolet SSR 2003-2006 gasoline V8 models
- Chevrolet Suburban 2017-2019 gasoline V8 models
- Chevrolet Suburban 1500 2000-2014 gasoline V8 models
- Chevrolet Suburban 2500 2000-2011 gasoline V8 models
- Chevrolet Tahoe 2000-2014 gasoline V8 models
- Chevrolet Trailblazer 2003-2009 gasoline V8 models
- GMC Canyon 2009-2012 gasoline V8 models
- GMC Envoy 2004-2009 gasoline V8 models
- GMC Savana 1500 2003-2013 gasoline V8 models
- GMC Savana 2500 2003-2020 gasoline V8 models
- GMC Savana 3500 2003-2020 gasoline V8 models
- GMC Savana 4500 2010-2020 gasoline V8 models
- GMC Sierra 1500 1999-2013 gasoline V8 models
- GMC Sierra 2500 2000-2016 gasoline V8 models
- GMC Sierra 3500 2001-2018 gasoline V8 models
- GMC Yukon 2000-2014 gasoline V8 models
- GMC Yukon XL 1500 2000-2014 gasoline V8 models
- GMC Yukon XL 2500 2000-2013 gasoline V8 models
- Hummer H2 2003-2009 gasoline V8 models
- Hummer H3 2008-2010 gasoline V8 models
- Pontiac Firebird 1998-2002 gasoline V8 models
- Pontiac G8 2008-2009 gasoline V8 models
- Pontiac GTO 2004-2006 gasoline V8 models
- Saab 9-7X 2007-2009 gasoline V8 models
- LS1 / LS2 / LS3 / LS6 engine applications
- L99 / LSA engine applications
- L92 / L9H / L94 engine applications
- L76 / L77 engine applications
- LY6 / L96 engine applications
- LFA / LZ1 engine applications
- LY5 / LMG / LMF engine applications
- LH6 / LC9 / LY2 / L20 engine applications
- L33 / LQ4 / LQ9 engine applications
- LR4 / LM7 / L59 engine applications
- LS4 / LH8 / LH9 engine applications
- Fitment note: Fits compatible LS-based gasoline V8 engines using front crankshaft seal GM #12585673. Verify engine code and timing cover seal application before purchase.
