Thaekuns 731-05679, 731-05679B Lawn Mower Front Deck Roller for MTD Cub Cadet Troy-Bilt Review

Overview

The Thaekuns 731-05679 and 731-05679B Front Deck Roller is an affordable OEM replacement part designed specifically for select MTD, Cub Cadet, and Troy-Bilt lawn tractors. Priced at just $9.99, it’s a budget-friendly fix for homeowners whose original roller has worn down, cracked, or gone missing. This part is ideal for anyone maintaining a mid-size lawn (half an acre or more) with a riding mower from these brands, especially if you notice uneven cutting or scalping on bumpy terrain.

Who Should Buy This

• Homeowners with MTD, Cub Cadet, or Troy-Bilt riding mowers from the 2000s to 2010s – If your deck roller is cracked, missing chunks, or just plain worn out, this is a direct drop-in replacement that restores smooth deck movement.
• DIYers who prefer fixing over replacing – At under $10, this roller lets you avoid a costly new mower deck or a service call. If you’re comfortable with basic hand tools and a jack, you can swap this in under 20 minutes.
• Owners of rough or uneven lawns – A worn front roller causes the deck to bounce and scalp grass on dips and bumps. Replacing it with this part smooths out cut quality significantly.
• Budget-conscious buyers – You’re not paying for a brand-name OEM part here. Thaekuns offers a solid aftermarket alternative that works just as well for a fraction of the cost.

Key Features Breakdown

• OEM Replacement for 731-05679 and 731-05679B – This roller matches the exact specifications of the original MTD/Cub Cadet part. No drilling, filing, or modifications needed. Just remove the old one, slide this in, and pin it.
• Durable plastic construction – The roller is made from hard, UV-resistant plastic. It won’t rust like steel rollers, and it’s tough enough to handle repeated contact with gravel, roots, and sidewalk edges. That said, it’s not indestructible—prolonged abuse on rocks will eventually crack it.
• Smooth rolling design – The roller spins freely on its metal bushing, reducing friction as the deck moves over terrain. This prevents the deck from dragging or catching, which leads to a more consistent cut.
• Universal fit for select models – It fits a wide range of MTD platform mowers, including Cub Cadet LT series, Troy-Bilt Pony and Bronco, and many Yard Machines. Check your mower’s model number against the compatibility list to be sure.
• Lightweight and easy to install – At just a few ounces, it won’t add noticeable weight. Installation requires removing a cotter pin and washer, sliding off the old roller, and sliding on the new one. No special tools beyond a pair of pliers.

Pros

1. Direct fit for dozens of popular mower models – No guesswork, no modifications. If your mower uses the 731-05679 or 731-05679B part, this is a perfect match.
2. Extremely affordable – At $9.99, it’s cheaper than a pizza. Compare that to $25+ for an OEM roller from Cub Cadet.
3. Improves cut quality on uneven lawns – A fresh roller prevents the deck from tilting and scalping, giving you a more even cut across bumps and dips.
4. Easy DIY install – Even if you’re not mechanically inclined, you can swap this in 15 minutes with basic pliers and a jack to lift the mower.
5. UV-resistant plastic won’t rust – Unlike metal rollers that corrode over time, this plastic holds up well to moisture and sun exposure.
6. Smooth, free-spinning movement – The metal bushing ensures the roller turns easily, reducing wear on your deck and belt system.

Cons

1. Not compatible with all MTD/Cub Cadet decks – Double-check your mower’s model number. Some newer or oddball decks use a different roller size or mounting system.
2. Plastic can crack under heavy abuse – If you routinely mow over large rocks, concrete curbs, or tree roots, this roller may wear faster than a metal one. It’s best for typical lawn use, not demolition.
3. No installation instructions included – The package is just the roller. If you’re new to mower repair, you’ll need to look up a YouTube video or manual for your specific model.
4. May fit slightly loose on some mowers – A few buyers report that the roller has a tiny bit of side-to-side play. It doesn’t affect performance, but it can be annoying if you’re a perfectionist.

Bottom Line

If your Cub Cadet or Troy-Bilt mower’s front deck roller is shot, the Thaekuns 731-05679 is a no-brainer buy. It’s cheap, it fits, and it takes minutes to install. While it won’t survive a demolition derby with rocks and roots, it’s more than adequate for the vast majority of lawn care needs. For under $10, you’ll restore smooth deck movement and eliminate scalping on uneven ground. I’d recommend it to any DIY homeowner with a compatible mower—just double-check your model number first.

Frequently Asked Questions

Will this fit my Cub Cadet LT1042?
Yes, the LT1042 and many other Cub Cadet LT-series tractors use the 731-05679 roller. But always verify your mower’s model number against the compatibility list provided by Thaekuns. If your deck uses a different roller (like the 731-05680), this won’t work.

How do I install this roller?
Jack up the front of your mower so the deck is accessible. On the front of the deck, locate the old roller—it’s held in by a cotter pin and a flat washer. Remove the cotter pin with pliers, slide off the washer, pull off the old roller, slide on the new one, replace the washer and cotter pin, and bend the pin ends to secure it. That’s it.

Is this roller better than the OEM Cub Cadet part?
It’s not “better,” but it’s just as functional for a much lower price. The OEM part is made of similar plastic and will perform identically. The Thaekuns version saves you about $15. The only downside is you don’t get the Cub Cadet brand name—but the roller doesn’t know the difference.