--- product_id: 217179451 title: "Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4\" L x 4-1/4\" W x 3/4\" H; Quantum & 625-675 Series engines" brand: "briggs & stratton" price: "$38.95" currency: USD in_stock: true reviews_count: 5 category: "Briggs & Stratton" url: https://www.desertcart.us/products/217179451-briggs-and-stratton-491588s-flat-air-filter-cartridge-5-1 store_origin: US region: United States of America --- # Pleated media traps dust & debris Precision 5.25" x 4.25" x 0.75" fit OEM-grade Briggs & Stratton compatibility Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines **Brand:** briggs & stratton **Price:** $38.95 **Availability:** ✅ In Stock ## Summary > 🍃 Keep your engine breathing easy—because clean air means peak power! ## Quick Answers - **What is this?** Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines by briggs & stratton - **How much does it cost?** $38.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/217179451-briggs-and-stratton-491588s-flat-air-filter-cartridge-5-1) ## Best For - briggs & stratton enthusiasts ## Why This Product - Trusted briggs & stratton brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Genuine OEM Quality Assurance:** Built by Briggs & Stratton for unmatched reliability and engine protection—because your mower deserves the best. - • **Advanced Filtration Technology:** Pleated air filter media captures grass clippings, dust, and yard debris to maintain optimal airflow and engine longevity. - • **Lightweight Yet Durable Design:** At just 0.02 lbs, this filter balances robust construction with easy installation and maintenance. - • **Tailored Fit for Peak Performance:** Exact dimensions ensure seamless integration with Quantum & 625-675 Series engines—no guesswork, no returns. - • **Trusted by Thousands of Professionals:** 4.8-star rating from over 22,000 users proves it’s the go-to choice for serious lawn care enthusiasts. ## Overview The Briggs & Stratton 491588S Flat Air Filter Cartridge is a precision-engineered, genuine OEM replacement designed specifically for Quantum and 625-675 Series small engines. Measuring 5-1/4" L x 4-1/4" W x 3/4" H, it features pleated filtration media that effectively traps dust, grass clippings, and debris to ensure cleaner airflow and sustained engine performance. Lightweight and durable, this filter supports routine maintenance with a perfect fit guaranteed by strict OEM standards, backed by a 4.8-star rating from over 22,000 satisfied customers. ## Description Help keep your lawn mower engine breathing clean air with the genuine Briggs & Stratton 491588S air filter. Designed as a direct-fit lawn mower air filter for compatible Briggs & Stratton small engines, it helps block dust and debris before they reach critical engine components. Review ENGINE FITMENT and REPLACMENT PART NUMBERS before purchase to confirm fit. Review: B&S Air Filter - The OEM filter, you should be assured it will do the job properly. Review: Good price for filters. - Price for filters as a group. ## Features - SIZE CHECK: 5 1/4" L, 4 1/4" W, 3/4" H. Compatible with select Briggs & Stratton Quantum Series (3.5–6.75 HP) and 625-675 Series equipment. Match this Briggs and Stratton air filter to your existing part and engine before ordering to help avoid fit-related returns. - ENGINE FITMENT: 086432,091202,091212,091232,091252,092202,092212,092232,092252,094202,094212,095202,095212,110402,110412,110415,110417,110432,110437,110452,110492,110602,110612,110682,111412,111432,111437,111452,115432,115437,115462,115492,117431,117432,117436,117437,117462,118432,118436,118437,11A602,11A682,11A687,11C602,120202,120212,120232,120252,120292,120302,120312,120317, - CONTINUED: 120332,120352,120402,120412,120413,120415,120417,120432,120452,120492,120602,120607,120609,120612,120682,120H02,120H07,120K02,121002,121003,121012,121032,121052,121132,121162,121212,121232,121236,121237,121252,121302,121307,121312,121317,121332,121336,121337,121352,121392,121402,121412. REPLACEMENT PART NUMBERS: 5043K. Verify engine model and part number before ordering. - FILTRATION SUPPORT: Pleated air filter media helps trap grass clippings, dust and yard debris to support cleaner airflow and dependable small engine performance. - QUALITY CONSTRUCTION: Built for outdoor power equipment service with a reliable seal and durable filter design for routine lawn mower maintenance. - GENUINE BRIGGS & STRATTON PART: Genuine OEM part designed for Briggs & Stratton engines, helping protect performance, fit and service reliability. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0011WP4Q6 | | Best Sellers Rank | #377,091 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #4,186 in Outdoor Power Tool Replacement Parts | | Brand | Briggs & Stratton | | Brand Name | Briggs & Stratton | | Country of Origin | USA | | Customer Reviews | 4.8 out of 5 stars 22,543 Reviews | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00004915880009, 00024847239508 | | Item Dimensions L x W x H | 13.3L x 11.4W x 2H Centimeters | | Item Shape | Square | | Item Type Name | Air Cleaner Cartridge Filter | | Item Weight | 0.02 Pounds | | Manufacturer | Briggs & Stratton | | Manufacturer Part Number | 491588S | | Manufacturer Warranty Description | 90-days for defects in material and workmanship | | Model | 491588S | | Number of Items | 1 | | OEM Equivalent Part Number | 491588S | | OEM Part Number | 491588S | | Product Dimensions | 13.3L x 11.4W x 2H Centimeters | | Product Grade | Replacement Part,Performance Part | | UPC | 715256431187 798256112904 004915880009 024847239508 043948097923 759754992368 799742093554 071032000559 | | Unit Count | 1.0 Count | | What Is In the Box | Air Cleaner Cartridge Filter | ## Product Details - **Brand:** Briggs & Stratton - **Fit Type:** Vehicle Specific Fit - **OEM Part Number:** 491588S - **Product Dimensions:** 13.3L x 11.4W x 2H Centimeters - **Product Grade:** Replacement Part,Performance Part ## Images ![Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines - Image 1](https://m.media-amazon.com/images/I/61C2gjg7k4L.jpg) ![Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines - Image 2](https://m.media-amazon.com/images/I/81m5EV++zKL.jpg) ![Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines - Image 3](https://m.media-amazon.com/images/I/71obzDaRa+L.jpg) ![Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines - Image 4](https://m.media-amazon.com/images/I/31LvMPUlP5L.jpg) ![Briggs & Stratton 491588S Flat Air Filter Cartridge | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines - Image 5](https://m.media-amazon.com/images/I/81hHhPuC9hL.jpg) ## Questions & Answers **Q: Is this a Briggs and Stratton branded filter? Thanks** A: Received 5 unmarked filters, not Briggs and Stratton, from my order of 8-15-18, which I returned through Amazon's excellent returns policy. According to B&S, who I called, "all our filters are stamped with our name and product number on the sides". **Q: I have a Toro model 20372 with 6.5 HP engine. The engine is made by Toro, not Briggs and Stratton, Tecumseh, Honda, etc. Will filter fit this engine?** A: to "cbow" and "nikko" and any others who answered "no" to my question.....you are all wrong!!!!!! this filter is a perfect fit for my mower described in my question. glad i checked locally. maybe in the future you could either give accurate answer or no answer at all to a question you don't know the correct answer to. **Q: Is the size exactly 5-1/4 x 4-1/2 x 1 in. ? The production at listing says different.** A: I just went down in the basement and measured it, and yes, the dimensions are exactly what you said. Good luck! **Q: i have a push mower .. briggs and stratton quantum power model #22545x92E .. about 15 years old .. 22" murray. i need an air filter .. please help!** A: Thank you for considering AMC Parts Store for your mower parts.This is a very popular air filter for smaller Briggs engines.However, to be sure, we will need the ENGINE model #, type, and code to research it for you.It may look something like 125K02-0126-01. ## Customer Reviews ### ⭐⭐⭐⭐⭐ B&S Air Filter *by V***C on 2 May 2022* The OEM filter, you should be assured it will do the job properly. ### ⭐⭐⭐⭐⭐ Good price for filters. *by H***T on 1 October 2024* Price for filters as a group. ### ⭐⭐⭐⭐⭐ Good quality replacement filter *by W***A on 30 July 2024* Easy to fit. A great price. Lawnmower runs like new. ## Frequently Bought Together - Briggs & Stratton 491588S Flat Air Filter Cartridge - Briggs & Stratton 493537S Filter Pre-Cleaner --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/217179451-briggs-and-stratton-491588s-flat-air-filter-cartridge-5-1](https://www.desertcart.us/products/217179451-briggs-and-stratton-491588s-flat-air-filter-cartridge-5-1) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-25*