What maintenance does this breather filter require?

This Spectre breather filter comes pre-oiled from the factory. You can clean and re-oil it as needed to maintain optimal performance. Use a filter cleaning solution and breather filter oil, following the instructions on those products.

What is the purpose of a breather filter?

A breather filter, also known as a crankcase vent filter, allows the engine to vent crankcase pressure. This prevents pressure buildup that could damage seals and gaskets. It also filters the air entering the crankcase.

Does this filter come with installation hardware?

Yes, this Spectre breather filter includes an adjustable worm gear clamp. This clamp allows you to securely attach the filter to tubes with outside diameters from 3/8 inch to 1/2 inch (8-12mm).

Spectre Breather Filter 3991

Name: Spectre Breather Filter 10mm Flange / 2in. OD / 1-3/4in. Height - Black
Brand: Spectre
SKU: spectre-spectre-breather-filter-10mm-flange-2in-od-1-3-4in-height-black-t14-186959
Price: 13.99 USD
Availability: InStock

Spectre Breather Filter 10mm Flange / 2in. OD / 1-3/4in. Height - Black

$13.99

In Stock

This Spectre breather filter has a 10mm flange and fits tubes from 3/8 inch to 1/2 inch. Pre-oiled and ready to use.

Key Features

10mm flange inside diameter
Fits tubes from 3/8 inch to 1/2 inch (8-12mm) — adjustable worm gear clamp included
Pre-dyed synthetic media — lasting color
Triple chrome-plated steel top and base
Factory pre-oiled — ready to use

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable worm gear clamp, this air filter will fit tubes with outside diameters from 3/8 inch to 1/2 inch (8-12mm). Spectre breathers use pre-dyed synthetic media for lasting color, feature a triple chrome-plated steel top and base, and come factory pre-oiled and ready to use. Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See spectreperformance.com for CARB status on each part for a specific vehicle.This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable worm gear clamp, this air filter will fit tubes with outside diameters from 3/8 inch to 1/2 inch (8-12mm). Spectre breathers use pre-dyed synthetic media for lasting color, feature a triple chrome-plated steel top and base, and come factory pre-oiled and ready to use.