labwork 12633452 Master Timing Chain Kit with Oil Pump VVT Cam Phaser for GM Chevy Buick GMC 3.0L 3.6L V6

Key Features

• Complete Top-to-Bottom Overhaul: A comprehensive master restoration bundle containing premium timing chains, guide rails, precision tensioners, dual idler sprockets, 4 VVT sprockets, 4 VVT solenoids, and a heavy-duty replacement oil pump.

• Eliminate Engine Knock & Rattle: Engineered to replace stretched factory chains and worn plastic guides, correcting camshaft timing synchronization, preventing engine rattle, and resolving check engine light (CEL) timing codes.

• OEM-Grade Tensile Strength: Built using heat-treated, high-strength carbon steel links designed to resist structural stretching and wear over high-mileage cycles.

• Optimized Variable Valve Timing (VVT): Includes precisely calibrated variable valve timing components to restore factory throttle response, smooth idling, and maximum fuel efficiency.

Fitment & Compatibility Guide

⚠️ Crucial Fitment Notice: Due to regional naming variations and subtle variations across GM engine families, please strictly cross-reference your vehicle's engine code (LLT, LF1, LFW), model year, and displacement parameters below before ordering.

1. Verified Engine Block Applications (Core GM Global Engines)

• 3.6L V6 DOHC (LLT Engine)

• 3.0L V6 DOHC (LF1 / LFW Engines)

2. Detailed Model & Powertrain Breakdown

Buick Series (Domestic & Global Configurations)

• Buick LaCrosse (君越): * 3.0L Auto: 2011–2016 (LFW Engine | 190kW | 2997cc | 6-Speed FWD)

  • 3.0L SIDI Premium: 2011–2014 (LFW Engine | 195kW | 2997cc | 6-Speed FWD)

  • 3.0L Flagship: 2009–2012 (LF1 Engine | 190kW | 2994cc | 6-Speed FWD)

• Buick Park Avenue (林荫大道 - S8E Chassis): * 3.0L Models: 2010–2012 (LF1 Engine | 187kW | 2997cc | 5-Speed RWD)

• Buick Enclave (昂科雷 - CR1 Import Chassis):

  • 3.6L CXL (Elite / Flagship): 2009–2012 (LLT Engine | 215kW | 3564cc | 6-Speed AWD/FWD)

  • 3.6L Premium / Comfort Trims: 2014–2017 (LLT Engine | 215kW | 3564cc | 6-Speed AWD/FWD)

Extended Global Applications (Please match displacement & DOHC configuration)

• Buick: Enclave 3.6L (2008–2016), LaCrosse 3.6L (2007–2015)

• Cadillac: CTS (2007–2015), CTS 3.0L (2010–2014), SRX (2007–2015), STS (2008–2011), ATS (2013–2015), XTS (2013–2015)

• Chevrolet: Camaro (2010–2015), Traverse (2009–2016), Equinox (2008–2015), Impala (2012–2015), Malibu (2008–2012), Colorado (2015)

• GMC: Acadia (2007–2016), Terrain (2010–2015), Canyon (2015)

• Pontiac: G6 / G8 / Torrent (2007–2009)

• Saab: 9-3 / 9-5 / 9-4X (2006–2011 | 2.8L & 3.0L V6)

• Saturn: Outlook / Aura / Vue (2007–2010)

• Suzuki: Grand Vitara 3.2L (2009–2010), XL-7 3.6L (2008–2009)

Reference OE Part Numbers

• Primary Interchanges: 12633452, 12633451, 12612841, 12612840, 12599721, 12609259, 12609261, 12609263

• VVT Components: 12626160 (Left Intake), 12626161 (Right Intake), 12624464 (Exhaust), 12636175 (Solenoids)

• Secondary Interchanges: 12623513, 12623514, 12587418, 12597417, 12597416, 12586959, 12614464

Package Includes

• 3 × Heavy-Duty Timing Chains (1x Primary Lower 96-Link, 2x Secondary Upper 114-Link)

• 3 × Precision Timing Tensioners (1x Primary Crank-to-Idler, 1x Upper Right Side, 1x Upper Left Side)

• 2 × Combination Idler Sprockets (Left & Right 22T/33T Combo)

• 1 × Crankshaft Sprocket (30 Teeth)

• 6 × Engineered Guide Rails (Fixed and Tensioner Arms for Upper & Lower Sections)

• 4 × VVT Engine Variable Timing Sprockets / Gears (2x Intake, 2x Exhaust)

• 4 × VVT Engine Variable Timing Solenoids

• 1 × Replacement Oil Pump Assembly (Note: Silicone engine sealant, timing cover gaskets, and instruction manuals are NOT included).

Important Installation Notes

• Critical Timing Alignment: On GM High Feature V6 engines (3.0L/3.6L), timing alignment must be executed using the proper dual-stage timing marks. Ensure the crankshaft and camshaft gears are indexed accurately to prevent catastrophic valve-to-piston contact.

• Pre-Lubrication Required: Submerge the new timing chains in clean engine oil and prime the new oil pump before completing installation to prevent a dry start and premature friction wear.

• Professional Installation Highly Recommended: Replacing an entire timing infrastructure demands specialized locking tools and deep engine tear-downs. Installation by a certified technician or advanced engine specialist is strongly advised.