OE Quality
60-Day Returns

Dorman 310-222 Evaporative Emissions System Leak Detection Pump
Overview of Dorman 310-222 Leak Detection Pump
The Dorman 310-222 Evaporative Emissions System Leak Detection Pump is designed specifically for Volkswagen vehicles, including the CC, Passat, and Passat CC models. This black plastic pump plays a critical role in maintaining your vehicle's evaporative emissions system by detecting leaks efficiently.
- Constructed from durable black plastic material
- Measures 4.5 inches in length with a 3.8-inch diameter
- Features 0.7-inch inlet and outlet outside diameters
- Includes two ports for effective system integration
- Equipped with a male 3-blade connector for secure electrical connection
- Comes with a built-in filter to protect system components
- Specific fit for Volkswagen CC, Passat, and Passat CC models
Detailed Product Description
The Dorman 310-222 leak detection pump is engineered to meet the exact specifications required by Volkswagen CC, Passat, and Passat CC vehicles. Its plastic construction ensures resistance to corrosion and long-term durability within the evaporative emissions system. The pump’s dimensions, including a 4.5-inch length and 3.8-inch diameter, allow for precise fitment and optimal performance. The 0.7-inch inlet and outlet outside diameters facilitate proper airflow, while the two-port design supports efficient leak detection. The male 3-blade connector ensures a reliable electrical connection, and the included filter helps prevent contaminants from entering the system.
Purpose and Common Issues Addressed
- Detects leaks in the evaporative emissions system to prevent fuel vapor loss
- Helps maintain compliance with emissions regulations
- Prevents check engine light activation related to EVAP system faults
- Reduces fuel odor caused by vapor leaks
- Supports overall vehicle emissions system integrity
Installation Notes and Tips
- Ensure compatibility with Volkswagen CC, Passat, and Passat CC before installation
- Disconnect the battery prior to installation to avoid electrical hazards
- Inspect surrounding hoses and connectors for wear or damage during replacement
- Verify secure connection of the male 3-blade terminal to prevent electrical issues
- Follow vehicle manufacturer guidelines for torque specifications and mounting procedures
Quality Assurance and Warranty
Dorman manufactures the 310-222 leak detection pump to meet or exceed OEM standards for fit, form, and function. The part undergoes rigorous quality control to ensure reliable operation within the evaporative emissions system. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.
| Brand | Dorman |
| Part Number | 310-222 |
| Color | Black |
| Connector/Terminal Configuration | Male 3 Blade |
| Diameter | 3.8 |
| Head Drive Type | Yes |
| Inlet Outside Diameter | 0.7 |
| Length | 4.5 |
| Material | Plastic |
| Outlet Outside Diameter | 0.7 |
| Package Contents | 1 Leak Detection Pump |
| Port Quantity | 2 |
| Universal Or Specific Fit | Specific |
This part fits 24 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2016 | Volkswagen | CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2015 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2014 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2013 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2012 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2011 | Volkswagen | CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2011 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2011 | Volkswagen | Passat CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2011 | Volkswagen | Passat CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | Passat | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | Passat | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | Passat | N/A | w/Intensified Evaporation Purge Device System; L4 1.6L (1595cc) | ||
| 2010 | Volkswagen | Passat CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2010 | Volkswagen | Passat CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | Passat | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | Passat | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | Passat | N/A | w/Intensified Evaporation Purge Device System; L4 1.6L (1595cc) | ||
| 2009 | Volkswagen | Passat CC | 3.6L | V6 | N/A | w/Intensified Evaporation Purge Device System |
| 2009 | Volkswagen | Passat CC | 2.0L | L4 | N/A | w/Intensified Evaporation Purge Device System |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.