938-05078 Steering Shaft & 617-04024 Steering Gear Assembly - Direct

Our review of the 938-05078 Steering Shaft paired with the 617-04024 Steering Gear Assembly finds it best suited for owners of compatible MTD, Troy-Bilt, Yard Man and Bolens lawn tractors who need a direct replacement that restores steering function. The bottom line: this kit provides a straightforward, compatible swap for a range of model numbers and years, and its clear fitment list makes it easy to confirm compatibility before ordering. Customers reported good fit and functionality, and while installation difficulty varies, the part is a practical, cost-effective repair option for machines covered by the listed part numbers.

Key Features

• Direct replacement parts: Includes steering shaft 938-05078 and steering gear 617-04024 so users get both components commonly replaced together for consistent steering performance.
• Extensive compatibility: Fits a long list of MTD and Troy-Bilt models and many part cross-references, reducing the chance of ordering the wrong piece when the manual is checked first.
• Measured shaft length: The steering shaft is 53.6cm (21.1in) which helps installers verify fit before beginning work.
• Standard gear aperture: The steering gear has a 5/8' aperture that matches common tractor steering columns for a secure fit.
• Packaged with washer: Comes with a washer for immediate reassembly without sourcing small hardware separately.

Who It's For

This assembly is aimed at DIY mechanics and lawn tractor owners who need a like-for-like replacement for worn or damaged steering components on supported MTD, Troy-Bilt, Yard Machines, Yard Man and Bolens tractors from the mid 2000s and later. It is particularly useful for those who have confirmed one of the listed model or part numbers in their parts manual.

It is not intended for riders who are unsure of their model compatibility or who prefer dealer-installed parts; anyone uncomfortable with steering disassembly or who lacks basic hand tools should consider professional installation to avoid alignment or safety issues.

Pros & Cons

Pros

• Good fit for many MTD and Troy-Bilt models, matching multiple cross-reference numbers users often find in parts lists.
• Solid value: customers report quality and functionality consistent with the price paid.
• Includes both shaft and gear so both commonly failing steering items are addressed in one purchase.

Cons

• Installation has mixed feedback; some users found fitting straightforward while others needed extra effort or tools.
• Length and fit must be checked against the tractor manual before ordering to avoid returns.

Specifications

Steering Shaft Part Number	938-05078 (also listed as 738-05078)
Steering Shaft Length	53.6cm / 21.1in
Steering Gear Part Number	617-04024 / 617-04024A
Steering Gear Aperture	5/8'
Compatible Brands	MTD, Troy-Bilt, Yard Man, Yard Machines, Bolens
Includes	Steering shaft, steering gear, washer

Our Verdict

The 938-05078 shaft with the 617-04024 gear is a practical, value-minded repair option for owners of compatible lawn tractors who need to restore steering function without paying dealer rates. Verify fit with your parts manual first, and expect straightforward replacement when the listed dimensions and apertures match your machine. For the right models this kit delivers reliable fit and solid functionality for the price.

Frequently Asked Questions

Will this fit my MTD lawn tractor?
Check your tractor parts manual for any of the listed part or model numbers; if one matches, this assembly is designed as a direct replacement.

Is the steering shaft the correct length?
The shaft measures 53.6cm (21.1in); confirm this dimension against your existing shaft before ordering.

Does the kit include installation hardware?
The package includes a washer and the two main components; other fasteners are not listed so have common hardware on hand for reassembly.