Product details
  • SKU QMPJM272-0001

OUSIMY Secondary Air Injection Pump for Mercedes Benz E350 E550 ML350 ML550 | OE 1405185

In stock
Usually ships within 24 hours
Regular price $59.99
Product details
  • Vendor OUSIMY SHOP
  • SKU QMPJM272-0001
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Limited time offer

Fast & Reliable Shipping:

We understand that vehicle repairs cannot wait.

All OUSIMY orders are processed within 24 business hours after payment confirmation.

Shipping Options:

β€’ Standard Shipping:
Delivery usually takes 7-15 business days depending on destination.

β€’ Expedited Shipping:
Faster delivery options are available for customers who need their parts sooner.

β€’ Tracking Information:
Once your order ships, tracking details will be provided by email.

Please make sure your shipping address is correct before completing your order.

Warranty Policy:

At OUSIMY, we stand behind the quality and reliability of our automotive parts.

All products include a 3-Year Limited Warranty.

The warranty covers:
β€’ Manufacturing defects
β€’ Product quality issues
β€’ Failures under normal use conditions


If you experience any product issue, please contact our support team. We will provide assistance including troubleshooting, replacement, or other solutions.

Warranty does not cover:
β€’ Incorrect installation
β€’ Damage caused by accidents
β€’ Improper use
β€’ Normal wear and tear

30-Day Money-Back Guarantee:

Your satisfaction is important to us.

If you are not completely satisfied with your purchase, you can request a return within 30 days after receiving your order.

Return requirements:

β€’ Product must be unused
β€’ Product must be in original condition
β€’ Original packaging should be included


If you receive an incorrect or defective item, please contact us first. Our team will help resolve the issue as quickly as possible.

Vehicle Fitment & Technical Support:

Not sure if this part fits your vehicle?

Our automotive support team is here to help you find the correct replacement part before placing your order.

We can assist with:

βœ“ Vehicle compatibility confirmation
βœ“ OEM / Part number verification
βœ“ Product selection assistance
βœ“ Installation questions


To help us confirm the correct fitment, please provide:

β€’ Vehicle Make & Model
β€’ Year
β€’ Engine Type
β€’ OEM Part Number (if available)
β€’ VIN Number (optional)


Need help choosing the right part?

Click the chat icon in the bottom right corner and send us your vehicle information. Our team will help verify compatibility and recommend the correct replacement solution.

OE Part Number: 1405185
Attribute Content
Condition New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.
Fitment Type Direct Replacement
Manufacturer Part Number 0001404685
Drive Type Electrical
Superseded Part Number 0001404685, 0580000025
Placement on Vehicle Front
Package Included 1 x Secondary Air Pump, 3 x Screws
Brand OUSIMY
Type Secondary Air Pump
Interchange Part Number 0580000025
Product Type Secondary Air Injection Pump
OE/OEM Part Number 0001404685, A 000 140 51 85, 000 140 51 85
Manufacturer Warranty 3 Years
Surface Finish Black
Features Low Vibration, Low Power Consumption, Durable
This OUSIMY secondary air injection pump is a direct OEM replacement emissions control component built for Mercedes-Benz E350, E550, ML350 and ML550 gasoline models. Mounted to the vehicle’s secondary air system, this pump injects fresh air into exhaust manifolds during cold engine startups to quickly heat catalytic converters, cut harmful exhaust emissions, and eliminate dashboard check-engine alerts tied to secondary air system malfunctions.

Constructed with corrosion-resistant aluminum motor housing, reinforced durable impeller blades, and high-temperature sealed internal wiring connectors, this air injection pump matches all original mounting bracket holes, electrical plug pin layouts and air outlet pipe dimensions. It installs at the front engine bay secondary air circuit position, fitting all production years of E-Class and ML-Class E350, E550, ML350, ML550 without cutting, drilling or custom adapter modifications.

This upgraded secondary air pump resolves common factory part flaws including thin plastic impeller cracking, weak motor winding insulation, loose electrical terminal corrosion, and premature motor burnout after repeated cold-start cycling. The reinforced internal motor winding design delivers consistent air flow pressure across all temperature ranges, extending service life far beyond stock pumps. Pre-assembled with fully sealed wiring connectors and pre-aligned mounting feet, it enables direct bolt-on replacement to drastically cut labor time for DIY mechanics and professional repair shops.

Worn or failed factory secondary air injection pumps trigger widespread Mercedes emissions system failures, including persistent illuminated check engine lights, loud rattling or grinding noises from the engine bay on cold startup, failed state emissions inspection tests, delayed catalytic converter warm-up, and reduced fuel efficiency from unregulated exhaust gas buildup. Many vehicle owners face repeated pump failures from low-grade aftermarket alternatives; this heavy-duty replacement eliminates recurring secondary air system faults entirely.

Installing this brand-new secondary air injection pump clears diagnostic trouble codes triggered by insufficient air flow and pump motor electrical failure: P0410 (Secondary Air Injection System Malfunction), P0411 (Secondary Air Injection Flow Incorrect), P0412 (Secondary Air Injection Circuit Malfunction), and P0413 / P0414 secondary air pump open/short circuit error codes.

We offer complimentary free domestic shipping on all US orders to lower your Mercedes repair costs. All in-stock secondary air injection pumps are shock-protected packaged and shipped within 24 business hours from local warehouses, letting you resolve emissions warning lights and pass state smog checks quickly.

Every OUSIMY secondary air injection pump is covered by a manufacturer quality warranty against factory manufacturing defects and premature motor failure. Built to exact OE fitment standards with pre-matched wiring plugs and mounting points, it requires no aftermarket calibration or programming post-installation, making the repair process accessible for amateur vehicle owners and certified technicians alike.
  • Mercedes Benz E350 (All chassis generations)
  • Mercedes Benz E550 (All chassis generations)
  • Mercedes Benz ML350 (All chassis generations)
  • Mercedes Benz ML550 (All chassis generations)