Marsram Throttle Body Replacement for GM V8s 2005–2008 — Direct-Fit OE Match, Upgraded Sensor

Marsram electronic throttle body is a direct-fit replacement made to OE specifications for 2006–2008 GM V8 trucks and SUVs, restoring precise airflow control and throttle response.

This Marsram throttle body assembly is engineered as a like-for-like electronic replacement for many Chevrolet, GMC, Cadillac, Isuzu, Hummer, Saab and Buick V8 applications from model years 2005–2008. Built from reinforced, heat- and corrosion-resistant materials and fitted with an updated internal electronic sensor, it addresses common wear points in older throttle bodies while matching original equipment fitment and calibration points. Before ordering, confirm your vehicle matches the listed applications or check the vehicle fitment tool on the product page.

Which vehicles and engines will this Marsram throttle body fit?

This throttle body covers a broad selection of GM-based V8 platforms. Applications include Chevrolet Silverado, Tahoe, Suburban, Avalanche, Express vans, GMC Sierra, Yukon, Savana, and Cadillac Escalade, plus select Hummer, Saab, Isuzu and Buick models with the listed displacement ranges. Use the provided OE replacement numbers to cross-check compatibility with your VIN or parts catalog.

• Fits GM V8s: 4.8L, 5.3L, 6.0L and 6.2L across 2005–2008 models as listed.
• Cadillac Escalade 6.2L (2007–2008) and Escalade ESV/EXT 2008 supported.
• Also compatible with Hummer H2/H3, Saab 9-7x, Isuzu Ascender, Buick Rainier where specified.
• OE-equivalent part numbers: 12580760, 12679524, 217-2422, 2172422, 12572658.

How is the Marsram throttle body constructed and why does that matter?

Marsram uses reinforced materials and updated internal electronics to improve durability under heat and corrosive conditions common in engine bays. The redesigned sensor assembly reduces failure modes tied to wear in older OEM throttle bodies, helping maintain reliable throttle positioning and air metering. This construction improves longevity without altering factory mounting or electrical connectors.

• Reinforced housing resists corrosion and heat exposure.
• Updated electronic sensor reduces premature wear and faults.
• Manufactured to match original mounting points and connectors.

What symptoms indicate a failing electronic throttle body and when should I replace it?

If your vehicle shows electronic throttle control warnings or drivability issues, the throttle body could be at fault. Typical signs include illuminated ETC or check-engine lights, stalling, hesitation under acceleration, irregular idle, failure to start, or surging power. Replacement is recommended when diagnostics point to the throttle body or when symptoms persist after other checks.

• Warning lights related to electronic throttle control or engine management.
• Intermittent stalling, rough idle, or delayed acceleration response.
• Failure to start or persistent power surging on acceleration.

What comes in the package and what warranty support is included?

The package contains one complete Marsram electronic throttle body assembly manufactured to OE-equivalent specifications. Marsram backs the part with a 1-year warranty to cover manufacturing defects; check fitment before ordering using your vehicle information or the product's fitment confirmation. Professional installation or a trusted mechanic is recommended to ensure correct electrical and throttle adaptations.

• Includes: 1 complete electronic throttle body assembly ready for installation.
• Warranty: 1-year limited coverage against manufacturing defects.
• Recommendation: Verify vehicle fitment and have a qualified technician install and scan for codes.

Who is this for: This Marsram throttle body is intended for owners and mechanics working on 2005–2008 GM-derived V8 trucks and SUVs who need a durable, OE-equivalent replacement for a failing electronic throttle body. It’s suitable for fleet vehicles, everyday drivers, and restoration projects where reliable throttle control and straightforward bolt-on fitment are priorities, provided you confirm compatibility with the listed models and OE numbers.