Description
Product Overview
The Dorman 911-521 vapor canister vent solenoid is a precision‑engineered component designed to replace the original equipment unit in a wide variety of vehicles. Constructed from high‑grade machined metal, the solenoid provides exceptional durability and resistance to corrosion. It features a 0.25‑inch threaded inlet and a matching NPT outlet, ensuring a tight, leak‑free seal. With a compact footprint of 5 x 4.29 x 4.17 inches and a lightweight design at just 6.4 ounces, it integrates easily into the existing emissions system without requiring modifications.

Usage
This solenoid is ideal for automotive repair shops, DIY enthusiasts, and fleet maintenance programs seeking a reliable replacement for canister purge control. It functions in both gasoline and diesel applications, managing the flow of vapors from the charcoal canister to the engine intake. The robust metal construction tolerates high‑temperature environments typical of engine bays, making it suitable for daily driving, performance tuning, and long‑haul operations.
Why Choose Us
Dorman Products brings over a century of automotive expertise to every part it manufactures. Each vent solenoid undergoes rigorous simulation and endurance testing to verify fit and function, guaranteeing that it meets or exceeds OEM specifications. The direct‑fit design eliminates the need for adapters or additional hardware, reducing installation time and potential error. Backed by a strong reputation and a high customer rating of 4.6 stars from over 100 reviews, this part delivers confidence and peace of mind.
Key Features
- Premium machined metal construction for long‑lasting durability
- 0.25″ threaded inlet and NPT outlet ensure a secure, leak‑free connection
- Direct OEM replacement – plug‑and‑play installation
- Extensively tested for performance and endurance
- Supported by Dorman’s 100‑year legacy of quality automotive parts
FAQ
Is this solenoid compatible with my vehicle?
Yes, the Dorman 911-521 is designed as a direct replacement for many makes and models. Use the garage tool to confirm fitment before purchase.
What type of connection does the solenoid use?
It features a 0.25‑inch threaded inlet and a NPT outlet, both standard sizes for vapor canister systems.
Can I install this part myself?
Absolutely. The plug‑and‑play design requires no special tools—simply disconnect the old unit and connect the new solenoid.
Does Dorman provide a warranty?
Yes, Dorman offers a limited warranty that covers defects in materials and workmanship.
How does this solenoid improve emissions performance?
By ensuring a tight seal and reliable purge control, it helps maintain proper vapor flow, reducing emissions and improving fuel efficiency.




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