--- product_id: 2218513 title: "491588S Genuine Flat Air Filter | 5-1/4\" L x 4-1/4\" W x 3/4\" H; Quantum & 625-675 Series engines" brand: "briggs & stratton" price: "€ 20.30" currency: EUR in_stock: true reviews_count: 13 category: "Briggs & Stratton" url: https://www.desertcart.sk/products/2218513-491588s-genuine-flat-air-filter-5-1-4-l-x store_origin: SK region: Slovakia --- # Pleated media traps dust & debris Precision 5.25" x 4.5" x 0.8" fit Direct OEM fit for 50+ engine models 491588S Genuine Flat Air Filter | 5-1/4" L x 4-1/4" W x 3/4" H; Quantum & 625-675 Series engines **Brand:** briggs & stratton **Price:** € 20.30 **Availability:** ✅ In Stock ## Summary > 🌱 Keep your mower breathing easy — the genuine filter that powers peak performance! ## Quick Answers - **What is this?** 491588S Genuine Flat Air Filter | 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?** € 20.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/2218513-491588s-genuine-flat-air-filter-5-1-4-l-x) ## 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 - • **Trusted OEM Quality:** Genuine Briggs & Stratton part ensures durability and reliable performance season after season. - • **Perfect Precision Fit:** Engineered to match exact Briggs & Stratton specs for hassle-free installation and zero guesswork. - • **Wide Compatibility Range:** Fits 3.5–6.75 HP Quantum & 625-675 Series engines—future-proof your lawn care arsenal. - • **Ultimate Engine Protection:** Pleated filter media blocks grass clippings, dust, and yard debris to keep your mower running smooth and powerful. - • **Effortless Maintenance Upgrade:** Quick, tool-free swap revitalizes engine responsiveness and extends mower life. ## Overview The Briggs & Stratton 491588S Genuine Flat Air Filter is a precision-engineered, OEM replacement designed for select Briggs & Stratton small engines (3.5–6.75 HP). Its pleated filtration media effectively traps dust, grass, and debris, ensuring cleaner airflow and enhanced engine performance. With a perfect fit for over 50 engine models and a durable construction, this air filter offers an easy, tool-free installation that boosts mower responsiveness and longevity. Trusted by professionals and DIYers alike, it’s the essential upgrade for maintaining your lawn mower’s peak condition. ## 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: Great Replacement Air Filter – Easy Installation & Improved Performance - I recently purchased this filter for my lawn mower, and I’m really pleased with the results. Pros: Super Easy to Install: Installation was a breeze. I was able to replace the old, clogged filter in just a few minutes. No tools were necessary, and it fit perfectly into my mower’s air filter compartment. It was a straightforward swap, even for someone like me who’s not very mechanically inclined. Improved Mower Performance: After replacing the air filter, I noticed an immediate improvement in how my lawn mower runs. The engine feels smoother and more responsive. It starts up easier, and I haven’t noticed any hesitation in power while cutting. Durability & Quality: Briggs & Stratton is a trusted brand, and this filter certainly lives up to their reputation. The material feels sturdy, and I can tell it will last through multiple mowing seasons if properly maintained. Perfect Fit: It’s the exact replacement for the filter in my model (make sure you check your mower’s specs for compatibility). There’s no guesswork, and I’m confident it’ll work with other compatible models. Cons: None So Far: I’ve been using this filter for a few weeks now, and I haven’t encountered any issues. I’ll update my review if anything changes over time, but for now, everything is running smoothly. Overall Thoughts: If you're looking for a high-quality, easy-to-install air filter for your Briggs & Stratton-powered lawn mower, this filter cartridge is an excellent choice. It significantly improved my mower’s performance, and I don’t expect any issues with it. Highly recommend for anyone in need of a quick replacement! Tip: Make sure to regularly check and clean the filter, especially if you mow in dusty or debris-heavy areas. A clean filter will keep your mower running at its best. Review: Factory Air Filter that you can trust - Bought this air filter for my old Lawnboy mower. The quality was OEM and it size was perfect and fit perfect. The value for money was good. The Durability is factory quality. It's really nice being able to still get factory parts for a mower that is 18 years old. Very happy with my order and will be ordering a couple extra to have in reserve. Thanks ## 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 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #7,090 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #12 in Lawn Mower Air Filters | | Brand | Briggs & Stratton | | Brand Name | Briggs & Stratton | | Customer Reviews | 4.8 out of 5 stars 22,644 Reviews | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00004915880009, 00024847239508 | | Included Components | Air Cleaner Cartridge Filter | | Item Dimensions L x W x H | 5.25"L x 4.5"W x 0.8"H | | Item Type Name | Air Cleaner Cartridge Filter | | Item Weight | 9.07 g | | Manufacturer | Briggs and Stratton | | Manufacturer Part Number | 491588S | | Manufacturer Warranty Description | 1 Year Limited | | Model Number | 491588S | | Number of Items | 1 | | Number of Packs | 1 | | OEM Equivalent Part Number | 491588S | | OEM Part Number | 491588S | | Product Dimensions | 5.25"L x 4.5"W x 0.8"H | | Product Grade | Performance Part | | Shape | Square | | UPC | 715256431187 798256112904 004915880009 024847239508 043948097923 759754992368 799742093554 071032000559 | | Unit Count | 1 Count | ## Product Details - **Brand:** Briggs & Stratton - **Fit Type:** Vehicle Specific Fit - **OEM Part Number:** 491588S - **Product Dimensions:** 5.25"L x 4.5"W x 0.8"H - **Product Grade:** Performance Part ## Images ![491588S Genuine Flat Air Filter | 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) ## 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 ### ⭐⭐⭐⭐⭐ Great Replacement Air Filter – Easy Installation & Improved Performance *by C***A on November 7, 2024* I recently purchased this filter for my lawn mower, and I’m really pleased with the results. Pros: Super Easy to Install: Installation was a breeze. I was able to replace the old, clogged filter in just a few minutes. No tools were necessary, and it fit perfectly into my mower’s air filter compartment. It was a straightforward swap, even for someone like me who’s not very mechanically inclined. Improved Mower Performance: After replacing the air filter, I noticed an immediate improvement in how my lawn mower runs. The engine feels smoother and more responsive. It starts up easier, and I haven’t noticed any hesitation in power while cutting. Durability & Quality: Briggs & Stratton is a trusted brand, and this filter certainly lives up to their reputation. The material feels sturdy, and I can tell it will last through multiple mowing seasons if properly maintained. Perfect Fit: It’s the exact replacement for the filter in my model (make sure you check your mower’s specs for compatibility). There’s no guesswork, and I’m confident it’ll work with other compatible models. Cons: None So Far: I’ve been using this filter for a few weeks now, and I haven’t encountered any issues. I’ll update my review if anything changes over time, but for now, everything is running smoothly. Overall Thoughts: If you're looking for a high-quality, easy-to-install air filter for your Briggs & Stratton-powered lawn mower, this filter cartridge is an excellent choice. It significantly improved my mower’s performance, and I don’t expect any issues with it. Highly recommend for anyone in need of a quick replacement! Tip: Make sure to regularly check and clean the filter, especially if you mow in dusty or debris-heavy areas. A clean filter will keep your mower running at its best. ### ⭐⭐⭐⭐⭐ Factory Air Filter that you can trust *by S***E on May 31, 2026* Bought this air filter for my old Lawnboy mower. The quality was OEM and it size was perfect and fit perfect. The value for money was good. The Durability is factory quality. It's really nice being able to still get factory parts for a mower that is 18 years old. Very happy with my order and will be ordering a couple extra to have in reserve. Thanks ### ⭐⭐⭐⭐⭐ Perfect replacement part *by D***D on May 3, 2026* Perfect fit and great qualty...price is excellent ## 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.sk/products/2218513-491588s-genuine-flat-air-filter-5-1-4-l-x](https://www.desertcart.sk/products/2218513-491588s-genuine-flat-air-filter-5-1-4-l-x) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-14*