Description
Hustler OEM 116890P Caster Fork
The Hustler OEM 116890P Caster Fork Enable the Front Wheels to Rotate in a full 360 Degrees allowing the Mower to Turn in a Zero Degree Radius. This part is replaceable when bent or damaged from impacts or contact with obstacles. Bent Caster Forks can Affect Drive Tracking or the Ability to Turn Properly. Whenever Replacing a Bent or Broken Caster Fork it is also Recommend checking additional Components for Additional Damage.
⚠️ Before You Order – Verify Fitment
Caster Forks can vary by Model Family and Series. This Fork is used only on Select Hustler Models. Please confirm your exact Model Number is listed in the Model Fit Chart Below before ordering.
Not sure? Contact us with your Hustler Model and Serial Number and we’ll help verify fitment.
What This Part Does
- Supports the front caster wheel assembly on compatible Hustler zero-turn mowers
- Helps maintain proper front-end tracking and steering performance
- Replaces worn, bent, or damaged caster fork assemblies
- Genuine OEM Hustler replacement part
Part Details
- Brand: Hustler
- Current Part Number: 116890P
- Superseded Part Numbers: 113621, 116890
- Part Type: Caster Fork Assembly
- Position: Front Caster / Front Wheel Assembly
- Color: Yellow
Fits Select Hustler Models
Known Fitment Family References Include:
- X-ONE Series: 2016 - 2018 52", 54", 60", and 72" Side & Rear Discharge Models
- Super Z Series: 2011 - 2017 54", 60", 72" Side & Rear Discharge Models
- Super Z HD Series: 2013 - 2017 60", 72 Side & Rear Discharge Models
- Diesel Z Series: 2025 - Earlier 60", 72" Side & Rear Discharge Models
Suggested Parts Links
UPPER CASTER WELDMENT - CASTER FORK - WHEEL
- 705954 - Bolt (1/2 x 1 1/4 - 13) - Reference Number 1
- 798603 - Supporting Flat Washer - Reference Number 2
- 601375 - Rubber O-Ring (SAE - 14) - Reference Number 3
- 603153 - Bearing Dust Cap - Reference Number 4
- 784223 - Upper & Lower Bearing - Reference Number 5
- 387035 - Bearing Spacer - Reference Number 6
- 603164 - Bearing Disc - Reference Number 7
- 061101 - Nylon Nut (3/4 - 10) - Reference Number 8
- 025296 - Flat Washer - Reference Number 9
- 041475 - Bolt (3/4 x 9 1/2 - 10) - Reference Number 11
- 606744 - Tire/Wheel Assembly - Reference Number 12 (For Individual Rebuild Parts References Refer to the Part Number) - 13 X 6.50 - 6 Pneumatic Tire
- 607317 - Tire/Wheel Assembly - Reference Number 12 (For Individual Rebuild Parts References Refer to the Part Number) - 13 x 6.50 - 6 Semi-Pneumatic Tire
- 116281 - Optional FLEX Fork Kit * Upgrade Option for Smoother Ride - Comes as a Set of Two.
Assembly & Rebuild Directions
For Clearer More Readable Assembly Direction Right Click Image and Select Open in a New Window. Direction Can also Be Magnified in the Images as well - Most Model Using 116890P will use the Following Assembly Directions - If Hardware is Slightly Different it Will Require Different Assembly Diagrams and suggested Part Above. If More Assistants is Needed Reach out to Us Here @ Hilly Ridge.
Model Fit Chart
X-ONE (2016 - 2018 Side & Rear Discharge Models)
936237, 936245US, 936252, 936260, 936278, 936286, 936294US, 936302, 936310, 936328, 936336
Super Z (2011 - 2017 Side & Rear Discharge Models)
929927, 929935, 929943, 929950, 930024, 930065, 930875, 931048, 932012, 932020, 932038, 932046, 932053, 932061, 932129, 932137, 932970, 932988, 933457, 933929US, 934216, 934224, 934232, 934240, 934265, 934273, 934281, 934984US, 934992, 935007, 935015US, 935023, 935031, 935049, 935056US, 935064, 937714, 937722
Super Z Hyper Drive (2013 - 2017 Side & Rear Discharge Models)
932145, 932152, 932160, 932178, 932186, 932996, 933002, 934307, 934315, 934323, 934349, 934687, 934695, 934919, 934927, 934935, 934943, 934950, 934968, 934976
Diesel Z (2025 - Earlier Side & Rear Discharge Models)
938233US, 938241US, 938258US, 938266US, 940452US, 940460US, 940478US, 940486US, 943233US, 943241US, 943249US, 943266US