FM-28ORB Parts
Pacific FM-28ORB 28" Orbital Floor Machine (Models 545421 & 545422) – Recommended Service Parts
Below is a complete list of genuine Pacific FM-28ORB 28" Orbital Floor Machine replacement parts and accessories. This guide covers OEM Pacific Floorcare components for routine maintenance and repairs, including pad drivers and rings, isolators, weights, dust skirts, solution tanks, switches, cords, bearings, and motor/electrical parts. Using factory-direct Pacific FM-28ORB parts ensures the best performance, compatibility, and long service life. Click any part number to check availability in our store.
Why Choose OEM Pacific Parts? OEM parts are built to Pacific’s exact specifications for models 545421 and 545422, guaranteeing a precise fit and reliable operation. We ship quickly, offer 30-Day Returns, and provide expert support for all Pacific machine models.
Download the full Parts & Schematic Manual: Click to download the Pacific FM-20ORB / FM-28ORB Manual (PDF)
Note: Always double-check part numbers and descriptions directly from the manual before ordering.
Need help? Email tech@monsterjanitorial.com with your model & serial number and the item reference from this page. We’ll confirm fitment before you buy.
FM-28ORB Floor Machine
Models: 545421, 545422
| Part # | Description | Search |
|---|---|---|
| 541202 | Bumper, 28-inch | Search 541202 |
| 545905 | Grip face (velcro), 28-inch pad driver | Search 545905 |
| 875905 | Red pad, 28-inch | Search 875905 |
| 548502 | Dust skirt, 28-inch (optional) | Search 548502 |
| 908129 | Electrical cord | Search 908129 |
| 545011 | Bearing kit | Search 545011 |
| 855604 | Rubber isolator | Search 855604 |
| 549701 | Wheel (0.75" bearing) | Search 549701 |
| 545203 | Motor, 1.5 HP, 3450 RPM (TENV) | Search 545203 |
| 911709 | Capacitor, Start (for 545203) | Search 911709 |
| 911710 | Capacitor, Run (for 545203) | Search 911710 |
| 540804 | Bracket, orbit handle RH | Search 540804 |
| 540805 | Bracket, orbit handle LH | Search 540805 |
| 533701 | Handle grip | Search 533701 |
| 543201 | Bracket, mounting – orbital FM | Search 543201 |
| 871101 | Bushing, flange (.50") | Search 871101 |
| 851101 | Bushing, rubber | Search 851101 |
| 962282 | Screw, 1/2-13 × 1.5, hex head | Search 962282 |
| 980019 | Washer, lock, 1/2" | Search 980019 |
| 980783 | Washer, wave, 0.75" ID | Search 980783 |
| 502481 | Collar, set-screw, 0.75" | Search 502481 |
| 920011 | Nut, nyloc, 1/4-20, zinc | Search 920011 |
| W311D | Washer, fender, 1/4" × 1.0" (zinc) | Search W311D |
| 962010 | Screw, 1/4-20 × 1" (HTB) | Search 962010 |
| 980002 | Washer, lock, split, 1/4" | Search 980002 |
| W189D | Screw, hex, 1/4-20 × 0.75" (SS) | Search W189D |
| 980094 | Washer, split-lock, 5/16" (SS) | Search 980094 |
| W405D | Nut, jam, 5/16-18 (SS) | Search W405D |
| 542402 | Collar, clamp, 0.50" | Search 542402 |
| 980093 | Washer, wave, 0.50" | Search 980093 |
| 980095 | Washer, fender, 5/16" × 1.25" (zinc) | Search 980095 |
| 543303 | Filter, exhaust, vacuum (optional) | Search 543303 |
| 543304 | Filter, secondary HEPA (optional) | Search 543304 |
| 540601 | Paper bags, dust control (optional) | Search 540601 |
Available Accessories
| Part # | Description |
|---|---|
| 555929 | Pad, 14x28 Maroon CFR, case of 10 |
| 555949 | Pad, 14x28 Red scrub, case of 5 |
| 555959 | Pad, 14x28 White polish, case of 5 |
| 555909 | Pad, 14x28 Black strip, case of 5 |
| 555969 | Pad, 14x28 Turf, case of 4 |
| 875906 | Retaining pad, 12x28, for use between backer pad and SPP pad |
| 545002 | Weight kit, 60 lb, 28 in (includes three weight plates & attachment hardware) |
| 545004 | Dust control kit, 28 in (includes vacuum, attachment hardware & dust skirt) |
| 540601 | Paper bags, 10 pack, dust control kit |
| 545005 | Solution tank kit, 4 gallon |