Mighty Mule H101P Hardware Bag Kit for FM500, FM502, FM350, FM352 and FM600 Operators
The Mighty Mule H101P is the small hardware bag used to secure and service select Mighty Mule, GTO, and Linear Pro swing gate opener arm installations. On a gate opener, small hardware matters more than it looks. Missing clevis pins, worn clips, rusty bolts, or mismatched washers can let an actuator shift in the bracket, change the gate geometry, or create extra strain on the arm. This kit is typically used when reinstalling an opener arm, replacing lost original hardware, refreshing corroded mounting hardware, or finishing a repair where the brackets are still usable but the fasteners are not. It should be treated as a hardware bag, not a complete mounting bracket kit.
For FM500, FM502, FM350, FM352, and FM600 style systems, the hardware must match the existing front and rear bracket layout. If the gate has been converted for push-to-open use, has custom welded brackets, or uses a different GTO PRO arm family, compare the original parts diagram before assuming every fastener in the bag will be used.
Compatible With
H101P is commonly associated with the following swing gate opener models and related operator families when the original bracket layout matches:
- Mighty Mule FM250
- Mighty Mule FM350 and FM352
- Mighty Mule FM500 and FM502
- Mighty Mule FM600
- Mighty Mule MM350, MM500, and MM502 search references
- GTO / Linear Pro SW1500, SW2500, SW2550, SW3000, and SW3200 related service references
- GTO / Linear Pro 2000XL, 2000XLS, 2002XL, 2002XLS, 2500, 2502, 3000XL, and 3000XLS related hardware-bag references
- Select older Mighty Mule and GTO swing arm installations using the same clevis-pin and bracket hardware style
Features & Specifications
| Manufacturer | Linear / GTO / Mighty Mule |
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| Product Type | Swing gate opener hardware bag |
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| Part Number | H101P |
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| Application | Replacement small hardware for compatible swing gate opener arm installations |
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| Compatible Operator Type | Select low-voltage residential swing gate openers |
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| Included Components | Assorted mounting hardware; exact contents should be matched to the original parts diagram |
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| Material / Finish | Metal fasteners and clips; finish may vary by supply |
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| Notes | Not a complete bracket set and not a replacement actuator arm |
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Also Known As / Related Part Numbers
Related numbers and search references for this hardware bag include:
- H101P
- LIN-H101P
- GTO H101P
- Mighty Mule H101P
- Linear H101P
- Hardware Bag Kit
- Hardware Bag / Kit
- FM500 hardware bag
- FM502 hardware bag
- FM600 hardware bag
- GTO hardware bag for 2000XL / 3000XL families
- Not the same as HB100 bracket set
Technician Note
If a customer needs the physical mounting brackets, do not substitute H101P for HB100. H101P is best used when the brackets are already correct and only the pins, clips, bolts, washers, or small hardware need replacement.
Before Ordering
- Confirm the operator model and arm style from the original manual or label.
- Check whether the job needs only hardware or a full bracket set.
- Inspect the gate and post brackets for bending, wallowed holes, or cracked welds before reusing them.
- Confirm push-to-open installations have the correct push-to-open bracket parts.
- Do not reuse damaged pins or clips on a moving gate arm.
Important Ordering Warnings
H101P is commonly cross-referenced across several Mighty Mule and GTO families, but hardware contents and usage can vary by installation. Match the parts diagram and do not assume it includes every bracket or fastener used on the entire gate system.
Professional Advisory
Gate opener service can involve stored gate force, moving arms, batteries, and low-voltage control wiring. If the operator is moving unexpectedly, has damaged wiring, or has missing required safety devices, have the system inspected by a qualified gate technician before returning it to service.
Product-Specific Q&A
Is H101P the same as the HB100 bracket set?
No. H101P is a hardware bag with small mounting hardware. HB100 is the separate bracket set used to mount compatible Mighty Mule arms.
Can H101P be used on both single and dual swing gate openers?
It may be used on compatible single or dual systems, but each arm may require its own hardware depending on what is being replaced.
What is the most common reason to replace this hardware bag?
It is commonly replaced when original pins, clips, bolts, washers, or mounting hardware are missing, rusted, or damaged during arm service.
Does this kit include the actuator arm?
No. H101P does not include an actuator arm, control board, transformer, or full mounting bracket set.
What should be checked before installing new arm hardware?
Check the gate bracket, post bracket, pivot holes, and arm mounting points for wear or damage so the new hardware is not installed into a loose or unsafe mount.
