Performance Water Pump Timing Chain & Head Gasket Kit for Chevrolet Cobalt (2009-2010) 2.2L

Heavy-Duty Water Pump, Timing Chain & MLS Head Gasket Overhaul Kit for 2009-2010 Chevrolet Cobalt (Delta)

What it Does: The Performance Timing Chain, Water Pump, and Head Gasket Kit provides a complete top-end and valvetrain synchronization rebuild solution for the 2009-2010 Chevrolet Cobalt to eliminate chain slack, restore compression sealing, and prevent catastrophic valve-to-piston contact.

The Stock Chevrolet Cobalt Valvetrain & Cooling Vulnerabilities

The factory 2.2L LAP Ecotec valvetrain relies on plastic timing chain guide rails and oil-pressure-dependent hydraulic tensioners that degrade over thermal cycles. Over time, brittle nylon guides fracture, causing primary and balance shaft chains to jump teeth on this interference engine. Concurrently, factory single-layer gaskets suffer thermal fatigue under cyclical load, leading to coolant intrusion into the combustion chamber, while the internal water pump impeller shaft seals wear out and weep coolant directly into the timing cavity.

The Engineering Solution

This master overhaul kit addresses mechanical fatigue through high-tensile link-belt chains, reinforced impact-resistant composite guide rails, and precision-machined VVT camshaft sprockets. The included Multiple Layers Steel (MLS) head gasket maintains consistent clamp-load recovery across uneven deck expansions, eliminating combustion blow-by. Paired with a heavy-duty cast water pump and refreshed balance shaft drive components, this kit restores exact camshaft timing phasing, stabilizes crank harmonic balance, and is designed to ensure reliable cooling flow.

What's Included

• 1 Timing Chain (148 Links)
• 1 Timing Chain Tensioner
• 2 VVT Camshaft Gears (Exhaust/Intake)
• 2 Camshaft Position Actuators
• 2 Variable Valve Timing Solenoids
• 1 Crank Sprocket (23 & 42 Teeth)
• 1 Timing Chain Guide Rail (Tensioner Guide, Left and Upper)
• 1 Balance Shaft Timing Chain (134 Links)
• 1 Balance Shaft Tensioner
• 1 Balance Shaft Sprocket (Intake & Exhaust Side)
• 1 Balance Shaft Guide Rail (Upper, Left & Right)
• 1 Water Pump with Gasket
• 1 Timing Cover Gasket Set
• 1 Multiple Layers Steel (MLS) Head Gasket
• 1 Valve Cover Gasket
• 1 Valve Stem Seal Set
• 1 Intake Manifold Gasket
• 1 Exhaust Manifold Gasket
• 1 Front Camshaft Seal
• 1 O-ring Assortment
• 1 Hardware Gasket Pack

Technical Specifications

Compatibility

• 2009 Chevrolet Cobalt Base / LS / LT (2.2L L4 DOHC LAP)
• 2010 Chevrolet Cobalt Base / LS / LT (2.2L L4 DOHC LAP)

Frequently Asked Questions & Fitment Warnings

Does this fit the Delta Cobalt?

Yes, this is a direct fit for the 2009-2010 Chevrolet Cobalt equipped with the 2.2L LAP Ecotec engine with Variable Valve Timing (VVT). This kit does not fit 2005-2008 non-VVT L61 engines or 2.0L turbocharged SS models.

Are specialized timing tools required during installation?

Yes, an Ecotec camshaft locking tool and water pump sprocket holding tool are required to maintain TDC alignment and chain tension during assembly.

The Chevrolet Reliability Caliber

Built to exceed factory service standards, this kit provides complete long-term protection against valvetrain stretch, ensuring precise variable timing response, balanced harmonic operation, and leak-free engine performance across every daily mile.