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Bobcat 463 rims do not directly fit the Toyota 4SDK4 skid steer without modification. While both machines use similar tire sizes, differences in bolt pattern, center bore, and offset typically prevent direct interchangeability.

Understanding Rim Compatibility

When evaluating whether one skid steer’s rims will fit another, several critical dimensions must be considered:

  • Bolt Pattern: Number of bolt holes and the diameter of the circle they form
  • Center Bore: Diameter of the hole in the center of the rim that fits over the hub
  • Offset: Distance from the mounting surface to the wheel’s centerline
  • Rim Width and Diameter: Must match the tire size and machine clearance
  • Valve Stem Placement: Affects accessibility and protection from debris

Even if the tire size is the same (e.g., 10x16.5 or 12x16.5), the rim may not mount properly due to these factors.

Bobcat 463 Rim Characteristics

  • Bolt Pattern: Typically 6 on 8.75"
  • Center Bore: ~6 inches
  • Offset: Designed for narrow frame machines
  • Common Rim Size: 8.25x16.5 or 9.75x16.5 depending on tire
  • Valve Stem: Usually rear-facing for protection

Toyota 4SDK4 Rim Characteristics

  • Bolt Pattern: Often 6 on 8.5" or metric equivalent
  • Center Bore: Slightly smaller than Bobcat
  • Offset: Designed for wider stance and stability
  • Common Rim Size: Similar to Bobcat, but with different hub geometry
  • Valve Stem: May vary depending on OEM or aftermarket rim

Field Observations and Adaptation Stories

A contractor in Queensland attempted to mount Bobcat 463 rims on a Toyota 4SDK4 after sourcing a set from a retired fleet. The bolt holes aligned closely but not perfectly, and the center bore was too large, causing vibration and unsafe fitment. He ended up using a machine shop to fabricate adapter rings and re-drill the bolt holes. “It worked,” he said, “but it wasn’t worth the effort unless you’re stuck in the bush.”

Another operator in Alberta found that aftermarket rims designed for universal skid steers could be ordered with custom bolt patterns and offsets. He replaced all four rims on his 4SDK4 with reinforced steel wheels and matched them to Bobcat-style tires for better flotation in snow.

Recommendations for Rim Swapping

  • Always measure bolt pattern and center bore before attempting a swap
  • Use a rim gauge or template to verify fitment
  • Consult with a tire/rim supplier who specializes in skid steer equipment
  • Consider aftermarket universal rims with adjustable offset and bolt pattern options
  • Avoid using spacers or washers to “force” fitment—this can lead to hub damage or wheel failure

Maintenance and Safety Considerations

  • Check torque specs after installation and re-torque after first 10 hours of use
  • Inspect for rubbing, vibration, or uneven wear
  • Ensure valve stems are accessible and protected
  • Use matching tires for load balance and traction consistency
  • Keep records of rim modifications for future service or resale

Conclusion: Measure Twice, Mount Once

While Bobcat 463 and Toyota 4SDK4 skid steers may appear similar in size and function, their rim specifications differ enough to make direct interchange risky. With careful measurement and professional guidance, rim swaps can be done safely—but shortcuts can lead to costly damage. In the world of compact loaders, precision matters even at the wheel.

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