Marsram Throttle Body Replacement for 2.4L GM Engines — Fits 2008–2012 Malibu, 2010–2011 Equinox, OE-fit & Reinforced

The Marsram electronic throttle body is a direct-fit replacement for many 2.4L GM engines, restoring precise airflow control and improving throttle response.

If your Chevrolet, Buick, GMC, Pontiac or Saturn with a 2.4L L4 engine is showing driveability issues related to the throttle assembly, this Marsram unit is built to match original specifications and plug into the factory wiring and mounting. Constructed from reinforced materials with an updated sensor design, it aims to reproduce OE performance while resisting heat and wear encountered under the hood.

Which vehicles and engines is this throttle body compatible with?

This Marsram throttle body supports a long list of GM models fitted with 2.4L inline‑4 engines produced across late‑2000s and early‑2010s model years. It is intended as a replacement for the factory electronic throttle on those vehicles so you won’t need custom adapters.

• Chevrolet: Cobalt Sport (2008), Equinox (2010–2011), HHR (2008–2011), Malibu (2008–2012)
• Buick: Allure CX (2010), Lacrosse (2010–2011), Regal (2011)
• Pontiac/GMC/Saturn: G5, G6, Solstice, Terrain, Aura, Sky, Vue across corresponding years

How does this part match original equipment numbers?

Marsram supplies this throttle body designed to align with common OE references so it will replace the factory unit without electrical or mounting changes. The part is produced to meet the same fit and connector layout as the originals listed by manufacturers and aftermarket catalogs.

• Replaces multiple OE references such as 12631186, 12694871 and 2173428
• Compatible with aftermarket identifiers like TB1033 and S20015
• Manufactured to the same dimensional and electrical tolerances as factory units

What performance and durability features does the Marsram throttle body provide?

The assembly controls throttle position with an integrated sensor and idle control functions to help deliver smoother acceleration and steadier idle. Its reinforced housing and redesigned internal sensor aim to maintain consistent operation under temperature and vibration stresses common in engine bays.

• Electronic sensor calibrated for accurate throttle position feedback
• Reinforced materials to resist heat and mechanical wear
• Designed to reduce hesitation, surging, or idle instability when functioning correctly

When should I replace the throttle body and what symptoms indicate failure?

Replace the throttle body when you see control or electrical warning signs, since delayed action can lead to poor drivability. Swapping the assembly typically restores normal airflow control and reduces related issues if the throttle body is the root cause.

• Warning lights such as the Electronic Throttle Control (ETC) illuminate
• Engine stalls, fails to start, or shows hesitation/power surges under acceleration
• Irregular idle speed or inconsistent throttle response

Who this is for: Drivers and professional installers seeking an OE‑spec replacement for 2.4L GM vehicles manufactured between roughly 2008 and 2012 will find this Marsram throttle body a suitable option. It’s aimed at those who need a direct-fit part that matches common original numbers, offers a modernized sensor design, and comes with a one‑year warranty and customer support for peace of mind.