Description
Product Overview
The YCUPONE Evaporative System Integrity Module is engineered to maintain the integrity of a vehicle’s evaporative emissions system. Constructed from high‑grade polymer composites, the unit resists corrosion and chemical exposure while providing a lightweight solution at only 2.82 ounces. Precise dimensions of 4.72 x 4.72 x 0.47 inches allow seamless integration into OEM mounting points. Certified to meet EPA standards, this module monitors vapor pressure fluctuations and signals the engine control unit when leaks are detected, helping to preserve fuel efficiency and reduce harmful emissions.
Usage
Ideal for automotive repair shops, DIY enthusiasts, and fleet maintenance teams, the module fits a broad spectrum of makes and models that share the part numbers 310‑215, 320215, 4B1591, ESM1001, LDP14, VDP14, 4861962AA, among others. Install the unit in place of the original smog pump component to restore proper vapor capture during refueling and temperature changes. It performs reliably in both hot summer climates and cold winter conditions, making it suitable for year‑round operation across diverse geographic regions.

Why Choose Us
YCUPONE commits to rigorous quality control, testing each module through a 100‑hour burn‑in cycle and functional verification before shipment. Our non‑OEM part offers a cost‑effective alternative without compromising performance, backed by a responsive customer support team ready to assist with fitment questions. With a 4.2‑star rating from 57 verified buyers, the module demonstrates proven reliability and satisfaction in real‑world applications.
Key Features
- High‑durability polymer housing resists fuel vapors and temperature extremes
- Compact, lightweight design simplifies installation and reduces vehicle weight
- Accurate vapor leak detection to maintain emissions compliance
- Broad compatibility with multiple OEM part numbers for versatile fit
- Backed by thorough testing and responsive after‑sales support
FAQ
Is this module a direct replacement for the original OEM part?
Yes, the YCUPONE module matches the specifications of the OEM smog pump component and fits the same mounting locations for the listed part numbers.
Can I install the module myself?
Installation is straightforward for anyone with basic automotive tools. Follow the vehicle’s service manual to disconnect the battery, remove the old unit, and secure the new module using the original fasteners.
What warranty does YCUPONE provide?
The product includes a one‑year limited warranty covering defects in materials and workmanship, plus access to our technical support team for installation assistance.
Will this part affect my vehicle’s fuel economy?
No, the module is designed to maintain the original system’s efficiency. By preventing vapor leaks, it can actually help preserve optimal fuel consumption.
Is this part compatible with hybrid vehicles?
It is compatible with many hybrid models that use the same evaporative emissions architecture. Verify the part number against your vehicle’s specifications before purchase.




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