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Wholesales Price
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You Are Buying 
Brand: ISUMO
Aftermarket Premium High Quality
Upgraded Electrical Connector
(Pigtail Wiring Harness
of
Mass Air Flow Sensor 
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Part#
EC1220
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Cross-Reference
6460940048, 
646094004880
MAS0427
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Specifications:
Connector Gender Female
Connector Quantity 1
Connector Shape Oval
Notes Sensor Only
Terminal Gender Male
Terminal Quantity 5
Terminal Type Blade
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Fits:
MERCEDES-BENZ    E320 DIESEL 2005-2006
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🔵© ISUMO® Description

• Upgradedd Mass Air Flow Sensor Electrical Connector
• Designed to replace a damaged, melted, corroded, or loose factory connector
• Helps restore a secure electrical connection between the Mass Air Flow Sensor and the vehicle wiring harness
• Manufactured with durable materials for dependable electrical performance
• Suitable for professional wiring repairs and connector replacement

🔵© ISUMO® Functions

• Transfers power, ground, and signal communication between the Mass Air Flow Sensor and the engine control module
• Helps the engine computer monitor the amount of air entering the engine
• Supports proper fuel-delivery calculations and air-to-fuel ratio control
• Helps maintain smooth engine performance, acceleration, and fuel efficiency

🔵© ISUMO® Common Error Codes

• P0100 -- Mass or Volume Air Flow Circuit Malfunction
• P0101 -- Mass Air Flow Circuit Range/Performance
• P0102 -- Mass Air Flow Circuit Low Input
• P0103 -- Mass Air Flow Circuit High Input
• P0104 -- Mass Air Flow Circuit Intermittent
• Trouble codes may also be caused by the sensor, wiring, air leaks, or other engine-management components

🔵© ISUMO® Common Symptoms

• Check Engine light illuminated
• Rough or unstable idle
• Engine hesitation or poor acceleration
• Engine stalling or difficult starting
• Reduced fuel economy
• Rich or lean running condition
• Intermittent Mass Air Flow Sensor operation
• Loose, damaged, or corroded connector terminals

🔵© ISUMO® Benefits

• Upgradedd replacement connector design
• Helps restore dependable electrical contact
• Ideal for repairing damaged factory wiring connections
• Durable construction for under-hood conditions
• Cost-effective alternative to replacing the complete wiring harness

🔵© ISUMO® Package Includes

• 1 Upgradedd Mass Air Flow Sensor Connector
• Quantity: 1 Piece

🔵© ISUMO® Important Notes

• Wiring repair, splicing, or terminal installation may be required
• Wiring color may vary by production batch
• Professional installation is recommended
• Please check the eBay compatibility chart before ordering

© ISUMO® Registered Trademark. All Rights Reserved.
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Returns & Warranty Policy

30-Day Returns

Returns are accepted within 30 days of the purchase date, in line with our eBay return policy.

Warranty After 30 Days

  • ISUMO® parts: 30-day returns, plus warranty replacement up to 90 days from the purchase date (exchange for the same item).
  • Other brands: after the 30-day return period, the part is covered by its manufacturer's warranty. Warranty terms differ by brand, so please check the manufacturer's website or contact them directly.
  • For warranty replacements, the buyer is responsible for return shipping and the cost of shipping the replacement.
  • Proof of purchase date is required.
  • Please message us before sending an item back so we can confirm the shipping cost.

What the Warranty Covers

Failures caused by defects in materials or manufacturing. It does not cover normal wear and tear, cosmetic damage, or improper installation.

Any alteration, modification or tampering with the item voids the warranty and the right to return it. Altered items are not eligible for any credit.

Before You Return an Item

  • Please message us first, before sending the item back or opening a return request, with a clear description of the issue and photos showing the problem.
  • Please allow us up to a maximum of 2 business days to respond. Most of the time we reply much sooner, and every message is answered by a real person on our team, not a bot. Our business hours are Monday to Friday, 10:00 AM – 5:00 PM Pacific Time (PST).

Local Pickup

If you chose local pickup, please wait for our email or eBay message confirming that your order is ready for pickup before coming in. Pickup is available during business hours, Monday to Friday, 10:00 AM – 5:00 PM (PST).

Return Condition

Items must be returned in their original packaging and in good condition. Please include a dated photo of the item when you ship it back.

Please double-check that you are returning the same brand-new part we sent you. When replacing a part, it is easy to mix up our new part with the old one removed from your vehicle. Returned items are inspected and matched to our part, so old, used or different parts returned in place of ours are not eligible for any credit or refund.

Questions? Message us through eBay. We're happy to help.