593260 Air Filter 798452 334404 Air Cleaner Filters, Professional Lawn Mower Replacement for 725EXI, 675EXI, 675EX, 625EX, 675, 625E, 550EX, 500EX, 500E, 500 Series 2PCS Review

Overview

This Air brand 2-pack replacement air filter kit (part numbers 593260, 798452, and 334404) is a budget-friendly, high-performance filter set designed specifically for Briggs & Stratton 500 and 550 Series engines, including popular models like the 725EXI, 675EXI, 675EX, 625EX, 675, 625E, 550EX, 500EX, and 500E. At just $6.99 for two filters, it’s a no-brainer for homeowners and DIYers who want to keep their walk-behind mower, pressure washer, or generator running clean without overpaying at the dealership.

Who Should Buy This

• Homeowners with Briggs 500/550 Series mowers – If you own a Toro, Craftsman, or Troy-Bilt mower powered by a 500EX, 625EX, or 675EX engine, this filter is a direct drop-in replacement. It’s perfect for regular seasonal maintenance.
• Budget-conscious DIYers – Two filters for under seven bucks is hard to beat. If you change your air filter every season (as you should), this pack gives you a spare or a second filter for another small engine in your shed.
• Owners of generators or pressure washers – These filters aren’t just for mowers. They fit many small engines used in portable generators and pressure washers with the same engine series—great for emergency prep or gear maintenance.
• Anyone tired of overpriced OEM parts – Briggs & Stratton branded filters often run $8–$12 each. This Air brand alternative delivers the same fit and function for a fraction of the cost.

Key Features Breakdown

• Compatibility with 500/550 Series engines – This filter fits a wide range of Briggs & Stratton engines (725EXI, 675EXI, 675EX, 625EX, 675, 625E, 550EX, 500EX, 500E, and 500 Series). Always double-check your engine model number, but for most owners of these engines, it’s a perfect match.
• Replaces OEM part numbers 593260, 798452, and 334404 – These are the most common factory filter numbers for this engine family. If your old filter has one of those stamped on it, this is your replacement.
• Two filters per pack – You get two identical filters in each order. That means one for now, one for later—or one for your mower and one for your generator. It’s a small but smart value add.
• High-quality foam and paper construction – The filter uses a dense foam pre-filter bonded to a paper pleated element. This dual-layer design traps fine dust while allowing good airflow, which is exactly what small engines need to avoid bogging down.
• Easy installation – No tools required. Just remove the old filter, wipe out the housing, and press the new one into place. It’s a 30-second job that saves you from costly engine repairs down the road.

Pros

1. Exceptional value – Two filters for $6.99 is roughly half the price of a single OEM filter. You’re essentially getting a free filter with every purchase.
2. Perfect fit for common engines – Users report a snug, rattle-free fit in Briggs 500/550 Series engines. No trimming, no mods—just drop it in.
3. Improved engine performance – A clean air filter can restore lost power and fuel efficiency. Many users note their mower starts easier and runs smoother after swapping this in.
4. Durable construction – The foam and paper combo feels solid, not flimsy. It holds up well to moisture and debris, even in dusty conditions.
5. Works for multiple machines – Beyond mowers, it fits generators, pressure washers, and log splitters with compatible engines. One pack can serve your whole fleet.
6. High user rating – 4.8 out of 5 stars from 24 reviews is no fluke. Owners consistently praise the fit, price, and performance.

Cons

1. Not for older or non-standard engines – This filter only fits the specific 500/550 Series engine family. If you have a different Briggs model (like the 300 or 400 Series), it won’t work. Always verify your engine model before buying.
2. No OEM branding – Some buyers prefer the peace of mind of a Briggs & Stratton branded filter. While this Air brand filter performs identically, it doesn’t have the factory logo.
3. Limited to two filters – If you need more than two, you’ll have to buy another pack. It’s a minor inconvenience, but for some, a 4-pack option would be nice.
4. Not a high-performance filter – This is a standard replacement filter, not a high-flow or washable unit. For racing mowers or extreme dust conditions, you might want a more specialized option.

Bottom Line

The Air brand 2-pack air filter kit is a slam-dunk for anyone with a Briggs & Stratton 500 or 550 Series engine. It delivers a perfect fit, solid build quality, and a price that’s hard to beat—two filters for the cost of one OEM unit. Whether you’re doing routine maintenance on your lawn mower or keeping a generator ready for emergencies, this is a smart, no-regret purchase. I recommend it without hesitation for budget-conscious homeowners and small engine owners who want reliable performance without the markup.

Frequently Asked Questions

Q: Will this filter fit my Toro mower with a Briggs 625EX engine?
A: Yes, it should. The 625EX is part of the 500 Series engine family, and this filter replaces OEM parts 593260, 798452, and 334404. Just confirm your engine model number (look for a sticker near the spark plug or on the valve cover) to be sure.

Q: How often should I replace this air filter?
A: For a typical lawn mower used on a 1/4- to 1/2-acre lawn, replace it once per season or every 25 hours of operation. If you mow in dusty or dry conditions, check it monthly and replace as needed. A dirty filter can reduce power and increase fuel consumption.

Q: Can I use this filter in a pressure washer or generator?
A: Yes, if the engine is a Briggs & Stratton 500 or 550 Series (e.g., 500EX, 550EX, 625E). Many portable generators and pressure washers use these engines. Just verify the engine model—it’s usually listed on a decal or stamped into the shroud.