Click to zoom in
Make catch-can service easier with the correct drain component
Replacement legacy brass drain valve, manufacturer part number 300. MightyMouse lists this valve for Gen 3 cans, Gen 4–5+ standard 3-inch cans, and Gen 5 XL 3.5-inch cans. This is not the Gen 6 or Gen 6XL drain valve. Valve only; a catch can or drain-extension kit is not included. Follow the operation directions shown in the product image and do not overtighten. Manufacturer use restriction: MightyMouse states that these parts are not legal for purchase or use on pollution-controlled vehicles and must not be installed on emissions-controlled vehicles.
Key Features
- MightyMouse Solutions application for MightyMouse Legacy Catch Can Drain Valve - 300
- Selection must match the stated dimensions, connection type, can generation or vehicle application
- Only the selected variant and explicitly listed hardware are included
Manufacturer use note: Replacement legacy brass drain valve, manufacturer part number 300. MightyMouse lists this valve for Gen 3 cans, Gen 4–5+ standard 3-inch cans, and Gen 5 XL 3.5-inch cans. This is not the Gen 6 or Gen 6XL drain valve. Valve only; a catch can or drain-extension kit is not included. Follow the operation directions shown in the product image and do not overtighten. Manufacturer use restriction: MightyMouse states that these parts are not legal for purchase or use on pollution-controlled vehicles and must not be installed on emissions-controlled vehicles.
Fitment
| Fitment Type | Required Match |
|---|---|
| Application specific | Match the selected variant, dimensions, connections, can generation and vehicle notes before ordering |
Specifications
| Detail | Value |
|---|---|
| Brand | MightyMouse Solutions |
| Product | MightyMouse Legacy Catch Can Drain Valve - 300 |
| Manufacturer Part Number | 300 |
| Condition | New |
What's Included
- Fulfillment: Ships directly from MightyMouse Solutions. Processing and delivery timing depend on the selected item; confirm the current estimate before ordering.
About MightyMouse Solutions
MightyMouse Solutions develops crankcase-ventilation systems, catch cans, fittings, mounting hardware and related service parts for application-specific street and performance builds.
Related Parts
- Use only hoses, fittings, brackets and service parts verified for the exact selected MightyMouse configuration.
FAQ
What is the 300?It is the MightyMouse Solutions mightymouse legacy catch can drain valve - 300 described by the compatibility, specifications and package details on this page.
Should I choose a Mild or Wild system?This listing is a component or service part, not a complete catch-can system unless the package description explicitly says otherwise.
How do I confirm exact fitment?Match the full year, make, model, engine or PCV layout, connection size, mounting location and every listed exclusion before ordering.
Which variant should I select?Use the variant menu to match every listed connection, mounting point, power-capacity option and vehicle qualifier. Do not select by appearance alone.
What is included?Fulfillment: Ships directly from MightyMouse Solutions. Processing and delivery timing depend on the selected item; confirm the current estimate before ordering.
How often should the catch can or component be inspected?Inspect the installation after the first heat cycles and during routine service. Drain a catch can before it reaches capacity, using the actual accumulation rate to set the interval.
Are similar-looking MightyMouse parts interchangeable?No. Can generation, body diameter, port size, hose size, connector style, bracket and vehicle routing must all match.
Are there road-course or emissions restrictions?Follow the current MightyMouse instructions and all applicable emissions and vehicle-use rules for the exact product and application.
Installation Instructions
- Confirm the exact vehicle, can generation, selected variant, connection sizes, mounting point and included hardware before disassembly.
- Plan hose and component routing away from heat, belts, fans, wiring and service points.
- Install using the current MightyMouse Solutions instructions for the exact product and tighten every connection appropriately.
- Start the engine, inspect for leaks or abnormal crankcase pressure, then recheck the installation after the first heat cycles.
Engine
Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components Start with the project: a cooling repair, crankcase-ventilation upgrade, induction change, measured internal build or engine-bay finish. The current selection includes Billet Technology and MightyMouse catch cans, ZPE pulley components, CSF and Mishimoto radiators, Cometic sealing parts and carbon-fiber or billet accessories. These solve different jobs, so build the order around the engine and components actually installed. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, model, engine...
View Engine Products
MightyMouse Solutions
Shop MightyMouse Solutions oil catch cans and PCV systems for HEMI, LS, LT, Coyote and EcoBoost applications at Black Ops Auto Works. Compare Mild and Wild vehicle kits, then choose the mounting and connection options for your build. From a stock-powered TRX to a modified Camaro or Corvette, the right system starts with the engine and ventilation layout—not just the vehicle badge.What a MightyMouse Oil Catch Can DoesA catch can separates oil mist and collected contaminants from crankcase gases before they return through the intake. MightyMouse combines oil separation with application-specific positive crankcase ventilation, or PCV, arrangements. That gives you a way to manage oil carryover while choosing the airflow configuration your engine needs.Compare systems by their plumbing and intended use. A catch can’s horsepower capacity describes a supported configuration; it is not horsepower added to the engine. Oil collection also depends on engine condition, driving and maintenance.M...
View MightyMouse Solutions Products