Mango S 2.4 Ecotec Timing Chain Kit 12680750 — Complete direct-replacement for 2.0/2.2/2.4L GM engines

The Mango S 2.4 Ecotec Timing Chain Kit (part 12680750) is a complete, direct-replacement timing kit engineered to restore proper valve timing on compatible 2.0L/2.2L/2.4L GM Ecotec engines.

This timing chain kit contains the critical components needed to replace worn chains, guides, tensioners and related items that control cam and crank synchronization. It’s designed as a factory-spec replacement for a range of GM vehicles from the early 2000s through 2015, including the Chevy Equinox, GMC Terrain, Buick Verano and several other models with the 2.4 Ecotec family engines. Replacing the timing components proactively or when symptoms arise helps maintain engine performance and avoid secondary damage.

How do I know if my engine needs this timing chain kit?

Common signs include a rattling or slapping noise from the front of the engine, timing-related fault codes, uneven idle, or metal debris after failure. A professional inspection will confirm slack in the chain, worn guides, or failing tensioners.

• Listen for a chain rattle on cold starts or at idle.
• Check engine light with cam/crank correlation codes (e.g., P0016-type).
• Visual inspection revealing loose chain or damaged plastic guides.
• Oil contamination or metal particles indicating component wear.

What parts are included and which OE numbers does it replace?

The Mango S kit is supplied as a complete timing kit and includes timing chains, chain guides, tensioners and necessary hardware to match the original factory specifications. It is intended as a direct replacement for several OEM part numbers used across GM Ecotec engines.

• Complete chains and multiple guide rails sized for 2.4 Ecotec engines.
• Tensioner assemblies calibrated to OEM geometry.
• Direct-replacement fit for part numbers such as 12680750, 9-4201S, 94201SX and equivalents.
• Supplied as one full kit ready for installation during engine service.

Which vehicles and engine sizes is this compatible with?

This kit fits a wide list of GM models equipped with the Ecotec 2.0L, 2.2L and 2.4L family engines between roughly 2003–2015. Always verify fitment using your vehicle year, make and model before purchasing to ensure exact compatibility.

• Chevrolet: Equinox (2010–2015), Malibu (2008–2013), Cobalt (2006–2010), HHR (2006–2011).
• GMC: Terrain (2010–2015).
• Buick: LaCrosse (2011–2015), Verano (2012–2015).
• Pontiac, Saab, Saturn models using 2.0/2.2/2.4 Ecotec engines (see fitment list).

How should this kit be installed and what should I check during service?

Installation is best performed by a technician familiar with Ecotec timing procedures and specialized tooling. Follow the factory timing marks and torque specs, replace oil and filter if contamination is present, and verify cam/crank alignment after assembly.

• Use factory timing alignment tools and follow torque specs precisely.
• Inspect oil condition—replace oil/filter if metal debris is found.
• Replace related seals or gaskets while the front cover is removed.
• Rotate the engine by hand through multiple cycles to confirm correct timing.

Who is this for: The Mango S 2.4 Ecotec Timing Chain Kit is intended for DIY mechanics and professional shops servicing GM Ecotec 2.0L/2.2L/2.4L engines who need a full, OEM-style replacement of timing chains and wear items. It suits owners noticing timing noise or fault codes, and anyone performing a comprehensive engine timing service to restore reliable valve timing and help prevent catastrophic engine damage.