A-Premium Secondary Air Injection (Smog) Pump — Direct-Fit for Mercedes‑Benz V6/V8 2005–2012, Includes Hardware

The A-Premium Secondary Air Injection (smog) pump is a direct-fit replacement pump engineered to restore proper secondary-air flow and help your Mercedes-Benz meet emissions system demands.

When the secondary air injection pump fails, you can see error codes, rough cold starts, or the check engine light on many Mercedes-Benz vehicles. This A-Premium unit is built from durable materials, includes mounting hardware, and matches the common reference numbers used by several Mercedes models so installation is straightforward for DIYers and professional mechanics alike.

Which Mercedes-Benz models will this pump fit?

This pump covers a wide range of Mercedes-Benz cars and SUVs from the mid-2000s through early 2010s. It fits specific C-, E-, CLS-, CLK-, SLK-, SL-, ML-, GL-, G-, R- and S-Series models with V6 and V8 engines listed by year ranges and displacements. Always compare the part reference numbers and your original pump to confirm compatibility.

• Fits C230/C250/C280/C300/C350 (2005–2012 V6/V8 variants where specified)
• Covers CL550, CLK350/550, CLS550, E280/E300/E350, ML350/450/550
• Compatible with GL450/GL550, GLK350, G550, R550, SL550, SLK280/300/350 and S400/S450
• Cross-references: 0001404685, 0001405185, 0580000025, 0580000026, 306-018, SKAP913065

How is this A-Premium pump constructed and what are the specs?

The pump uses robust plastic components that tolerate high under-hood temperatures and resist corrosion. It arrives with a female electrical connector, two pin terminals, three hose connectors, and the mounting hardware needed for installation. These details make it a reliable replacement that conforms to the standard OEM layout.

• Material: heat-resistant plastic housing
• Electrical: 1 female connector, 2 pin terminals
• Vacuum/air: 3 hose connectors for system integration
• Package includes one pump plus mounting hardwares

What performance and durability benefits can I expect?

This pump is engineered to deliver steady airflow for the secondary air injection system, helping maintain start-up emissions control and steady sensor readings. Reinforced materials and corrosion-resistant components are chosen to withstand the thermal and chemical stresses common in the engine bay, extending service life over cheaper aftermarket alternatives.

• Consistent airflow to reduce erroneous emissions readings
• Resistant to heat and oxidation for longer service intervals
• Precision fit reduces installation time and leak risk
• Supplied hardware simplifies repair or replacement

Who is this pump for? If you own one of the covered Mercedes-Benz models and you’re diagnosing a secondary air injection fault, this A-Premium smog pump is aimed at owners and mechanics who want a cost-effective, direct-fit replacement that mirrors factory connections. It suits DIY installers comfortable with basic engine-bay work and professional shops seeking a dependable aftermarket alternative that lists common OEM reference numbers for easy cross-checking.