799585 Gas Cap Compatible with B riggs and S tratton 625e, T roy B ilt 200 100 Mower with 550EX Engines, C raftsman, H usqvarna, T oro - Fuel Tank Cap for Lawnmower Review

Overview

This is not a lawn mower—it’s a replacement gas cap designed to fit a wide range of popular lawn mower engines, specifically the Briggs & Stratton 625e and 550EX series, as well as Troy-Bilt 200 and 100 models, Craftsman, Husqvarna, and Toro mowers. Priced at $7.99, it’s an affordable fix for a common problem: a lost, cracked, or leaky fuel cap that leaves your mower sitting idle. It’s best for DIY homeowners who need a quick, no-hassle replacement to get their mower back in action without spending on a full service visit.

Who Should Buy This

• Homeowners with older Briggs & Stratton mowers (625e/550EX engines) – If your original cap has cracked from UV exposure or the rubber gasket has dried out, this is a direct swap that saves you from buying a new mower or paying for a dealer part.
• Troy-Bilt 200/100 series owners – These models are notorious for caps that loosen over time or get lost in tall grass. This cap fits snugly and keeps fuel from sloshing out during transport.
• Craftsman, Husqvarna, or Toro riders with compatible engines – If you’ve got a riding mower with a Briggs engine (common in these brands), this cap works as a backup or primary replacement. It’s especially useful if you store multiple mowers and want a spare.
• Budget-conscious DIYers – At $7.99, it’s cheaper than an OEM cap from a dealer (often $12–$20) and does the same job. If you’re comfortable with basic wrench work, this is a smart buy.

Key Features Breakdown

• Compatibility with Briggs & Stratton 625e and 550EX engines – These engines power countless walk-behind mowers and some riders. The cap’s threads and seal match the original design, so you won’t fight with a loose fit or cross-threading. Why it matters: a mismatched cap can lead to fuel leaks, which are a fire hazard and waste gas.
• Universal fit for Troy-Bilt 200/100, Craftsman, Husqvarna, Toro – The cap is designed to work across multiple brands that share the same fuel tank neck. This saves you from hunting down a model-specific part. Just double-check your mower’s engine model (stamped on the engine shroud) to be sure.
• Fuel tank cap design – It’s a simple screw-on cap with a built-in seal. No fancy vents or lock mechanisms—just a reliable seal that prevents evaporation and spillage. Why it matters: a failing cap can cause hard starting (due to vapor lock) or fuel stains on your garage floor.
• Price: $7.99 – This is the sweet spot for a replacement cap. Cheap enough to buy two for backup, but not so cheap that you question the plastic quality. For context, a dealer cap often runs $15–$20, and generic gas station caps rarely fit properly.
• Rating: 4.2/5 from 519 reviews – Strong evidence that most buyers find it works as advertised. The 4.2 average suggests some minor fitment issues (common with aftermarket parts), but the majority are satisfied.

Pros

1. Direct fit for common engines – No modifications needed. Screw it on and you’re done. It matches the thread pitch and gasket of original Briggs caps.
2. Stops fuel leaks – The rubber seal is thick enough to prevent sloshing during mowing or transport. Many reviewers report it fixed their “gas smell in the garage” problem.
3. Saves money vs. dealer parts – At $7.99, it’s often half the price of an OEM cap. For a simple plastic part, that’s a no-brainer.
4. Easy to install – No tools required. Just twist off the old cap and twist on the new one. Even a first-time mower owner can do it in 30 seconds.
5. Works on multiple mower brands – If you own a Craftsman push mower and a Husqvarna rider (both with Briggs engines), one cap can serve as a spare for both.
6. Durable plastic construction – While not indestructible, the cap is thick enough to withstand regular handling and UV exposure. It won’t crack after one season like some ultra-cheap caps.

Cons

1. Fitment isn’t 100% universal – Despite the listing, some buyers report it’s slightly loose or tight on certain models (e.g., older Toro units). Always verify your engine model before ordering.
2. No venting mechanism – If your original cap had a vent (common on some Briggs engines), this sealed cap may cause a vacuum in the tank, leading to fuel starvation or hard starting. Check your old cap before swapping.
3. Plastic feels a bit thin – While functional, the cap’s plastic isn’t as robust as some OEM caps. If you’re rough with your equipment, it might crack after a few seasons.
4. Not for all Briggs engines – It only fits 625e and 550EX series. If you have an older or newer Briggs model (like the 450E or 750EX), this won’t work.

Bottom Line

This gas cap is a solid, budget-friendly fix for anyone with a Briggs & Stratton 625e or 550EX engine mower. It stops leaks, fits most popular brands, and costs a fraction of what you’d pay at a dealer. The 4.2-star rating from over 500 buyers confirms it’s a reliable choice—just double-check your engine model and whether your old cap was vented. If you’re tired of gas fumes in your garage or a mower that won’t start due to a bad cap, buy this. It’s the right tool for the job, not a compromise.

Frequently Asked Questions

Q: Will this cap fit my Craftsman mower with a Briggs & Stratton 550EX engine?
A: Yes, it’s designed specifically for the 550EX and 625e series. Look for the engine model number on the sticker near the spark plug or under the air filter cover. If it says “550EX” or “625e,” you’re good.

Q: My old cap had a small hole (vent) in the top. Does this cap have one?
A: No, this cap is sealed. If your original cap was vented, replacing it with a sealed cap can cause a vacuum in the tank, which may lead to fuel starvation or hard starting. In that case, you may need a vented cap—check your mower’s manual or buy a cap with a vent.

Q: How do I know if my Troy-Bilt 200 mower uses this cap?
A: The Troy-Bilt