Input & Output Gearbox Oil Seal Set 05-005 156005 060061 00563500 45-351 Compatible with King Kutter Kodiak Howse Woods Tebben 40HP 50HP Rotary Cutters Gearbox

What It Is

This is a set of input and output shaft oil seals designed to replace worn or leaking seals in the gearbox of rotary cutters (brush hogs) from brands like King Kutter, Kodiak, Howse, Woods, and Tebben. It fits gearboxes rated for 40HP to 50HP PTO-driven cutters, preventing oil loss and contamination.

Fitment & Compatibility

• Confirm your gearbox model: This set is compatible with many common rotary cutter gearboxes, but verify your specific model number against the OEM numbers listed: 05-005, 156005, 060061, 00563500, 45-351.
• Measure shaft diameters: The input shaft seal fits a 1-inch shaft (typical for 40-50HP gearboxes). The output shaft seal fits a 1-3/8-inch or 1-1/2-inch shaft—measure yours before ordering. Use a caliper for accuracy.
• Check brand and model: Works on King Kutter (e.g., XB, XT series), Kodiak (e.g., 40-50HP models), Howse, Woods (e.g., BB48, BB60), and Tebben (e.g., T40, T50). If your cutter is from another brand, cross-reference the OEM numbers above.
• Aftermarket vs. OEM: This is an aftermarket seal set. It is not OEM but matches the listed OEM part numbers. Expect similar dimensions and material quality.

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the gearbox, drain the oil, and press out old seals. A seal driver or large socket helps avoid damaging the new seals. If you’re not comfortable, a shop can do it quickly.
• Common gotcha: Mixing up input vs. output seals. The input seal is smaller (1” shaft), output is larger. Label them before installation.
• Quality note: 4.4 stars from 9 reviews suggests good value, but some users report slightly softer rubber than OEM. For light to medium use, it’s fine; for heavy commercial use, consider OEM seals.
• Extra tip: Always replace both seals at once, even if only one is leaking. Also replace the gearbox gasket (sold separately) and use fresh gear oil (80W-90 or 85W-140, per your manual).

Should You Buy It

If you have a 40-50HP rotary cutter from King Kutter, Kodiak, Howse, Woods, or Tebben and need a budget-friendly, functional seal replacement, this set works well for most home and farm use. It’s not for high-hour commercial operations, but for the price, it’s a solid fix for a leaky gearbox.