5-in-1 Lawn Mower Maintenance Kit – Air, Oil & Fuel Filters + 2 Spark Plugs | Fits Craftsman, John Deere, Husqvarna, Cub Cadet, Troy-Bilt | Replaces 792105, GY21057 Review

Overview

If you own a lawn tractor or zero-turn mower from Craftsman, John Deere, Husqvarna, Cub Cadet, or Troy-Bilt, the 5-in-1 Lawn Mower Maintenance Kit is a no-brainer way to knock out a full tune-up in one purchase. Priced at $20.99, this kit bundles an air filter, oil filter, fuel filter, and two spark plugs—all compatible with common engine models like the Kohler Courage, Command, and some Briggs & Stratton V-twin engines. It’s designed for homeowners who want to keep their mower running strong without hunting down individual parts or overpaying at a dealership.

Who Should Buy This

• Homeowners with 1–2 acres of lawn who own a riding mower – If you’re putting 20+ hours a season on your tractor, this kit gives you everything you need for an annual tune-up at a price that beats buying each part separately.
• DIY mechanics who hate dealer markups – Instead of paying $8 for a single spark plug at a small-engine shop, this kit gives you two plugs plus three filters for $20.99. It’s a budget-savvy move for anyone comfortable with basic maintenance.
• Owners of older Craftsman or Husqvarna tractors – Many of these machines use the same Kohler or Briggs engines that this kit fits. If you’ve got a 10-year-old mower that’s starting to run rough, this is a cheap way to bring it back to life.
• Anyone who wants a single SKU for all their tune-up needs – No guessing which filter fits or forgetting to buy spark plugs. One box, five parts, done.

Key Features Breakdown

• 5-in-1 kit includes air filter, oil filter, fuel filter, and 2 spark plugs – Most tune-up kits stop at three pieces. This one includes a spare spark plug, which is smart because plugs can foul quickly if you’re burning oil or running rich. You’ll have a backup ready for next season.
• Fits Craftsman, John Deere, Husqvarna, Cub Cadet, Troy-Bilt – That covers the vast majority of residential lawn tractors sold in the U.S. over the last decade. If you’re unsure, check your engine model—most Kohler Courage or Command engines (15–26 hp) work, along with many Briggs V-twins.
• Replaces OEM part numbers 792105 and GY21057 – These are common OEM numbers for Cub Cadet and Husqvarna parts. Cross-referencing is easy, and you’ll often find these same parts sold individually for $6–$10 each.
• Price: $20.99 – That’s roughly $4.20 per component. Compare that to a single OEM spark plug at $7 or an oil filter at $10. You’re saving 40–50% off retail.
• Rating: 4.9 out of 5 stars from 17 reviews – Early adopters are overwhelmingly satisfied. That’s a strong signal that the parts fit and function as expected, though the sample size is small.

Pros

1. Complete tune-up in one box – No running back to the store because you forgot the fuel filter. Everything you need is included, which simplifies the whole process.
2. Excellent value for the price – At $20.99, you’re paying less than the cost of two OEM spark plugs alone. The filters are essentially free.
3. Wide compatibility – Fits multiple brands and engine families. If you have a Kohler Courage or Command, or a Briggs V-twin, you’re almost certainly covered.
4. Includes a spare spark plug – Most kits give you one plug. Having a spare means you can replace a fouled plug mid-season without another trip to the store.
5. Easy to install – No special tools required beyond a socket wrench and a screwdriver. Even a first-time DIYer can finish in under 30 minutes.
6. Solid build quality – The filters feel dense and well-constructed, not flimsy. The spark plugs have proper gap settings out of the box, though you should still double-check.

Cons

1. Not universal – If you have an older Kawasaki or Honda engine, this kit likely won’t fit. Always confirm your engine model before buying.
2. Fuel filter orientation can be tricky – Some users report that the fuel filter is directional (arrow indicates flow), and if you install it backward, you’ll starve the engine. Pay attention.
3. No installation instructions included – The box lists part numbers but doesn’t walk you through the process. If you’re new to mower maintenance, you’ll need to look up a YouTube video or owner’s manual.
4. Limited reviews (17 total) – While the 4.9 rating is impressive, it’s based on a small sample. Long-term durability is still unproven.

Bottom Line

The 5-in-1 Lawn Mower Maintenance Kit is a steal for anyone with a compatible riding mower. For $20.99, you get a full season’s worth of tune-up parts that would cost $40+ if bought separately. It’s perfect for the DIY homeowner who wants to keep their Craftsman, John Deere, Husqvarna, Cub Cadet, or Troy-Bilt running reliably without paying dealer prices. Just double-check your engine model (Kohler Courage/Command or Briggs V-twin) and watch a quick installation video if you’re new to this. I recommend buying one now and keeping the spare spark plug in your tool shed for next year.

Frequently Asked Questions

Will this fit my John Deere D100?
It should, as long as your D100 has a Kohler Courage engine (most do). Check your engine model number—if it’s a CV15, CV20, or similar, this kit is a direct fit. If you have a Briggs & Stratton engine, verify the oil filter type, as some Briggs use a different thread size.

Do I need to gap the spark plugs before installation?
Technically, yes. The plugs come pre-gapped, but I always recommend checking with a gap tool. For most Kohler and Briggs engines, the gap should be 0.030 inches. Adjust if needed—it takes 30 seconds and prevents misfires.

Can I use this kit on a zero-turn mower?
Yes, if your zero-turn uses a Kohler Courage or Command engine, or a compatible Briggs V-twin. Many Cub Cadet and Husqvarna zero-turn models use these engines. Just verify your engine’s oil filter and air filter shape before ordering.