Dorman 310-203 Evaporative Emissions System Leak Detection Pump

Overview of the Dorman 310-203 Leak Detection Pump

The Dorman 310-203 Evaporative Emissions System Leak Detection Pump is designed specifically for select Chrysler, Dodge, and Jeep vehicles. This black plastic pump plays a critical role in maintaining the integrity of the 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 two ports with 0.7-inch inlet and outlet outside diameters
• Equipped with a male 3-blade connector for secure electrical connection
• Designed for specific fitment on Chrysler, Dodge, and Jeep models

Detailed Product Description

The Dorman 310-203 leak detection pump is engineered to meet the exact specifications required for the evaporative emissions systems in Chrysler Grand Cherokee, Dodge Sebring, and Jeep Stratus models. Its plastic construction ensures resistance to corrosion and long-term durability under typical engine bay conditions. The pump’s dimensions, including a 3.8-inch diameter and 4.5-inch length, allow for precise installation within the vehicle’s evaporative system. The two ports, each with a 0.7-inch outside diameter, facilitate proper vapor flow, while the male 3-blade connector ensures reliable electrical connectivity for accurate leak detection.

Common Applications and Issues Addressed

• Detects leaks in the evaporative emissions system to prevent fuel vapor loss
• Helps resolve check engine light codes related to EVAP system leaks
• Prevents failed emissions tests caused by faulty leak detection pumps
• Maintains proper fuel vapor containment for environmental compliance
• Supports overall engine performance by ensuring system integrity

Installation Notes and Tips

• Verify compatibility with Chrysler Grand Cherokee, Dodge Sebring, or Jeep Stratus before installation
• Ensure all connections are secure, especially the male 3-blade electrical connector
• Inspect surrounding hoses and fittings for wear or damage during replacement
• Follow vehicle manufacturer guidelines for EVAP system service procedures

Quality Assurance and Warranty

Dorman manufactures the 310-203 leak detection pump to meet or exceed OEM standards for fit and function. The plastic construction is designed for durability in harsh automotive environments. While specific warranty details may vary, Dorman typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.