Easy
15-30 minutes
This is an authentic manufacturer approved replacement air cleaner cartridge. It is specially made for use with Briggs and Stratton engines. Its purpose is to remove dust and other contaminants that could get in the engines with the air. This filter is made from pleated paper in a plastic housing and it is sold individually. Please note, the foam filter pre-cleaner is sold separately.
Replacing this filter is a very simple task that does not require any tools.
• Remove the air cleaner cover
• Replace the air filter
• Secure the cover
Filter-a/c Cartridge 394018S
OEM part for: Briggs and Stratton, Craftsman, Vanguard - Briggs & Stratton
Part Number: 394018S
$27.55
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.10 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Filter-a/c Cartridge will fit the following 4008 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Briggs and Stratton
Craftsman
Vanguard - Briggs & Stratton
Show More Compatible ModelsThis item works with the following types of products:
- Generator Parts
- Engine Parts
- Lawn Tractor Parts
This part replaces obsolete part #: 4135, 86444GS, 394018
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Hard to find parts
ereplacement had the parts I needed that else where they were no longer available. They arrived fairly quickly and not damaged. Definitely the place to go for hard to find parts for your equipment!
Guest -
June 23, 2021
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Lost previous parts
Schmanke - March 24, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Engine
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set
Removed filter housing
Removed carburetor cover
Installed float pin
Adjusted float mechanism
Reinstalled carburetor cover
Added missing screw
Reinstalled filter housing
Installed new filter
Reattached filter cover
Removed carburetor cover
Installed float pin
Adjusted float mechanism
Reinstalled carburetor cover
Added missing screw
Reinstalled filter housing
Installed new filter
Reattached filter cover
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Needed routine maintenance.
Jack - September 27, 2018
Tool Type
Engine
Difficulty
Easy
Time
30-60 minutes
Tools Used
Wrench Set, Oil Filter Wrench
1) Drained the engine oil
2) Removed the old oil filter
3) Replaced the oil filter
4) Fill the crankcase with new oil
5) Removed the ail cleaner cover
6) Removed the old air filter and pre filter
7) Installed the new pre filter onto the new air filter
8) Installed the new air and pre filters
9) Installed the new air filter cover
10) Start and ran the engine until warm
11) Let the engine cool and verify the oil level
12) All done, all good
2) Removed the old oil filter
3) Replaced the oil filter
4) Fill the crankcase with new oil
5) Removed the ail cleaner cover
6) Removed the old air filter and pre filter
7) Installed the new pre filter onto the new air filter
8) Installed the new air and pre filters
9) Installed the new air filter cover
10) Start and ran the engine until warm
11) Let the engine cool and verify the oil level
12) All done, all good
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Generator required an air filter change, could not locate air filter locally, Thanks to you, it was easy.
Richard - August 31, 2018
Tool Type
Generator
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, None, used hands.
1. Opened air filter container
2. Removed air filter
3. Wiped out air filter container
4. Installed new air filter and prefilter
5.Replaced air filter container cover, and secured both locks.
2. Removed air filter
3. Wiped out air filter container
4. Installed new air filter and prefilter
5.Replaced air filter container cover, and secured both locks.
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Just a tune up.
FIDEL - December 3, 2017
Tool Type
Generator
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Adjustable Wrench
Replaced the spark plugs, the air filter and changed the damaged switch.
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Blower Housing Rotted and Rusted
Greg - October 20, 2017
Tool Type
Engine
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set
Replaced Blower Housing And Thoroughly Cleaned Motor
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
