R
Riley N.Verified Buyer
06/08/2025
No complaints
Quick delivery and the product exceeded my expectations.
STPSTP Air Filter SA11959
$21.99
Delivery by Oct 18
- Free shipping over $25
- Next-business-day ship
- Easy returns
Guides & Resources
Product guides for this item are not available online yet. Contact us if you need documentation.
Shipping Information
Free shipping on orders over $25. Most items ship next business day after your order is placed.
Returns Policy
Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.
Product facts
About This Item
- Protects the engine by removing dust, dirt, and other contaminants from engine air intake. Increased filtering efficiency results in a cleaner engine and longer engine life. Improves engine performance and miles per gallon by allowing optimal flow of clean air into the engine.
Details
Product Description
Science. Technology. Performance. These values guide the development of every STP product. STP Air Filters offer greater engine protection and a longer filter life, as a result of their advanced air filter media technology. The air filters are also designed for optimal air flow, which can improve fuel efficiency and performance.
Technical data
Product Specifications
- Part #
- SA11959
- SKU #
- 840140
- Grade Type
- Regular
- Side A Length
- 10.71 in
- Height
- 1.69 in
- Side B Length
- 10.04 in
- Shape
- Rectangular Air Filter
- Reusable
- No
Brand
Brand Story
Since 1954
Oil filters
STP
An oil-additive brand from St. Joseph, Missouri
STP introduced its first oil treatment in 1954 in St. Joseph, Missouri. The name stands for Scientifically Treated Petroleum. The lineup includes oil and fuel additives plus oil and air filters, with selected STP products sold at District Mailing Auto.
Shop STPHeritage
1954
The first STP oil treatment was introduced in St. Joseph, Missouri, in 1954.
Lineup
Additives and filters
The brand covers oil additives, fuel additives, oil filters, and air filters.
Storefront
At District Mailing Auto
Shop the STP products currently in the catalog.
Customer Reviews
4.7
Based on 7 reviews
M
Maria K.Verified Buyer
08/17/2025
Would buy again
Does what it is supposed to do. Happy with this purchase.
T
Ted R.Verified Buyer
02/03/2025
Works perfectly
Setup was simple and it has worked reliably since day one.
P
Pat M.Verified Buyer
11/28/2025
Better than expected
Reliable product and smooth buying experience on this site.
C
Chris W.Verified Buyer
07/05/2025
Highly recommend
Good experience overall from checkout to delivery.
J
Jordan L.Verified Buyer
04/15/2025
Very happy with this
Packaging was secure and the item was in perfect condition.
E
Emma S.Verified Buyer
12/14/2025
Exactly what I needed
Easy to order and arrived quickly. Product matched the listing and works great.