The Edelbrock 43511 is a Pro-Flo small universal open-element conical filter for use as a valve cover breather in racing applications where the valve cover breathes out of a 9 mm diameter tube. It clamps onto the tube and has a rubber housing with a red poly synthetic filter element.
Notes:
- The filter element is not replaceable.
Specifications:
- Brand: Edelbrock
- Part Number: 43511
- Part Type: Engine Crankcase Breather Cap
- Housing Material: Rubber
- E85 Compatible: No
- Oxygenated Fuel Compatible: No
- Filter Media Material: Poly Synthetic
- Replaceable Filter: No
- Filter Media Color: Red
- Mounting Type: Clamp
- Shape: Cone
- Height: 2.5
- Manufacturer warranty: 12 months
Emissions Status
- For use on pre-pollution-controlled vehicles: 1965 and older U.S.-manufactured California-certified vehicles, 1967 and older U.S.-manufactured federally certified vehicles, and 1967 and older foreign-manufactured vehicles.
- For engine swaps into uncontrolled or pre-pollution-controlled vehicles. Not legal for use on pollution-controlled vehicles.
- For racing use only.
Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
FAQ
What does the Edelbrock 43511 fit?
A valve cover that breathes out of a 9 mm diameter tube. It clamps onto the tube.
What color is the 43511 element?
The poly synthetic filter element is red.
Is the filter in the 43511 replaceable?
No. The filter element is not replaceable.
Is the Edelbrock 43511 street legal?
It is not 50-state legal. Its emissions status is for pre-pollution-controlled vehicles, engine swaps into those vehicles, and racing use only.
California Proposition 65: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

