Monarch MIT Series Semi-Trash Water Pump and Repair Parts
Monarch MIT Series Semi-Trash Water Pump and Repair Parts
The Monarch MIT Series semi-trash water pumps also sold as the Franklin Electric FMIT Series) are heavy-duty, self-priming centrifugal pumps built for industrial, commercial, and marine applications. Available in 2″, 3″, and 4″ port sizes MIT-20, MIT-30, and MIT-40 each Monarch MIT water pump features all-iron construction, a long-life silicon carbide mechanical seal, and a cast iron impeller that reduces vibration. Browse Monarch MIT Series repair parts and specifications below to keep your pump running at peak efficiency.
Every Monarch MIT Series pump is engineered for semi-trash and self-priming applications where durability is critical. Built with heavy-duty all-iron construction, these Monarch MIT water pump models deliver unmatched performance in demanding installations. The Monarch MIT Series handles water as well as small quantities of mud, sand, or silt up to 10% by volume, making them ideal for challenging fluid transfer jobs.
The shaft is crafted from stainless steel with a keyway for reliable power transmission, while the semi-open cast iron impeller ensures non-clogging operation, even in tough conditions. Priming is simplified by the convenient priming plug, eliminating the need to disconnect the discharge piping.
Monarch MIT Series Heavy-Duty Self-Priming Pump Features
The Monarch MIT Series of heavy duty self priming pumps are of all iron construction and can be used in a wide variety of applications, including industrial and marine installations.
| SHAFT | Stainless steel, with keyway. |
| IMPELLER | Semi open cast iron, non clogging, designed for water but can also handle small quantities of mud, sand or silt up to 10% by volume. |
| PRIMING PLUG | Enables priming, without having to disconnect the discharge piping. |
| CHECK VALVE | Built-in with threaded NPT suction inlet, prevents syphoning, facilitates priming. |
| BEARINGS | Two heavy duty sealed ball bearings. |
| SEAL | Viton and stainless steel with carbon-ceramic faces, mechanical self lubricating, no maintenance required. |
| CASING | Cast gray iron rugged construction large capacity for faster priming. Self cleaning interior design prevents silt build up. |
| WEAR PLATE | Replaceable steel wear plate, for maintaining maximum pump efficiency. |
Whether you need a complete Monarch MIT Series rebuild or a single replacement component, genuine OEM Monarch MIT Series repair parts ensure your water pump maintains factory specifications. Each Monarch MIT water pump shares a common design philosophy, making it easy to cross-reference parts across the MIT-20, MIT-30, and MIT-40 models using the compatibility chart below.
Monarch MIT Series is now Franklin Electric FMIT
| Item | Model | Seal | Suction | Discharge | Rotation |
|---|---|---|---|---|---|
| 90230002 | FMIT-20 | Mechanical Seal | Threaded – FNPT | Threaded – FNPT | Clockwise facing the shaft |
| 90230003 | FMIT-30 | Mechanical Seal | Threaded – FNPT | Threaded – FNPT | Clockwise facing the shaft |
| 90230004 | FMIT-40 | Mechanical Seal | Threaded – FNPT | Threaded – FNPT | Clockwise facing the shaft |
Monarch MIT Series Frame Mount Specifications
| Model No. | Order No. | Suction & Discharge NPT | Solids Handling | Shaft Diameter | Shaft Length | Key Size | Ship Wt. (lbs.) |
|---|---|---|---|---|---|---|---|
| MIT-20H | 611021 | 2″ | ¾” | 1¼” | 3 1/16″ | ¼” | 108 |
| MIT-30H | 611041 | 3″ | 1″ | 1¼” | 3″ | ¼” | 158 |
| MIT-40 | 611061 | 4″ | 1 3/8″ | 1 5/8″ | 3″ | 3/8″ | 282 |
| Hydraulic Adapter | 612881 | Includes bracket and coupling used to couple hydraulic motor with SAE J744C mounting flange to MIT-40. | |||||
Monarch MIT Series Performance Chart
Capacities in U.S. GPM — Total Head in Feet Including Friction Loss
| Model No. | Pump RPM | Max. Req’d HP | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft | 140 ft | 160 ft | 180 ft |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MIT-20H | 1750 | 2 | 125 | — | — | — | — | — | — | — | — |
| 3450 | 15 | — | 220 | 215 | 205 | 190 | 140 | 45 | — | — | |
| MIT-30H | 1750 | 3 | 280 | 100 | — | — | — | — | — | — | — |
| 3450 | 20 | — | 365 | 360 | 350 | 310 | 170 | 5 | — | — | |
| MIT-40 | 1750 | 15 | 760 | 640 | 410 | — | — | — | — | — | — |
| 2400 | 25 | — | — | — | 690 | 630 | 460 | 70 | — | — |
Monarch MIT Series Full Repair Parts List Use the table below to identify your Monarch MIT Series. Replacement part by reference number across all models (MIT-20L, MIT-20M, MIT-20H, MIT-30, MIT-30H, MIT-40). All genuine OEM parts ship while supplies last.
Model columns: a) MIT-20L b) MIT-20M C) MIT-20H D) MIT-30 Type B E) MIT-30H Type B F) MIT-40 G) MIT-40 Type B H) MIT-40TT. A “1” indicates the part applies to that model.
| Ref.# | Code # | Models | Description | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| a | b | c | d | e | f | g | h | |||
| 1 | 413070 | 1 | Transmission Head | |||||||
| 1 | 414690 | 1 | 1 | Transmission Head | ||||||
| 1 | 416310 | 1 | Transmission Head | |||||||
| 1 | 416520 | 1 | Transmission Head | |||||||
| 1 | 419540 | 1 | *Transmission Head Type A | |||||||
| 1 | 419540 | 1 | 1 | Transmission Head Type B | ||||||
| 2 | 413080 | 1 | Casing | |||||||
| 2 | 414700 | 1 | 1 | Casing | ||||||
| 2 | 416630 | 1 | 1 | Casing | ||||||
| 2 | 419560 | 1 | 1 | 1 | Casing Type B | |||||
| 3 | 413090 | 1 | Adapter Plate | |||||||
| 3 | 414710 | 1 | 1 | Adapter Plate | ||||||
| 3 | 416320 | 1 | Adapter Plate | |||||||
| 3 | 416640 | 1 | Adapter Plate | |||||||
| 3 | 419570 | 1 | 1 | 1 | Adapter Plate | |||||
| 4 | 413100 | 1 | Impeller | |||||||
| 4 | 414720 | 1 | Impeller | |||||||
| 4 | 415310 | 1 | Impeller | |||||||
| 4 | 416330 | 1 | Impeller | |||||||
| 4 | 416650 | 1 | Impeller | |||||||
| 4 | 419590 | 1 | 1 | Impeller | ||||||
| 5 | 413130 | 1 | Check Valve | |||||||
| 5 | 414730 | 1 | 1 | Check Valve | ||||||
| 5 | 416880 | 1 | 1 | Check Valve | ||||||
| 5 | 419500 | 1 | 1 | Check Valve | ||||||
| 6 | 014740 | 1 | 1 | Top Weight | ||||||
| 6 | 016670 | 1 | 1 | Top Weight | ||||||
| 6 | 019610 | 1 | 1 | 1 | Top Weight | |||||
| 7 | 013150 | 1 | 1 | 1 | Bottom Weight | |||||
| 7 | 013140 | 1 | 1 | Bottom Weight | ||||||
| 7 | 016870 | 1 | 1 | 1 | Bottom Weight | |||||
| 10 | 413170 | 1 | Bearing Cover | |||||||
| 10 | 414470 | 1 | 1 | Bearing Cover | ||||||
| 10 | 426210 | 1 | 1 | Bearing Cover | ||||||
| 10 | 426740 | 1 | Bearing Cover | |||||||
| 10 | 426214 | 1 | 1 | Bearing Cover | ||||||
| 11 | 413180 | 1 | Seal Cover | |||||||
| 11 | 414770 | 1 | 1 | Seal Cover | ||||||
| 11 | 416700 | 1 | 1 | Seal Cover | ||||||
| 11 | 419670 | 1 | 1 | 1 | Seal Cover | |||||
| 12 | 413191 | 1 | Shaft | |||||||
| 12 | 414781 | 1 | 1 | Shaft | ||||||
| 12 | 416371 | 1 | Shaft | |||||||
| 12 | 416711 | 1 | Shaft | |||||||
| 12 | 419681 | 1 | 1 | 1 | Shaft | |||||
| 13 | 413260 | 1 | Collar | |||||||
| 13 | 414790 | 1 | 1 | Collar | ||||||
| 13 | 416720 | 1 | 1 | Collar | ||||||
| 13 | 419690 | 1 | 1 | 1 | Collar | |||||
| 17 | 414810 | 1 | 1 | Wear Plate | ||||||
| 17 | 430420 | 1 | 1 | Wear Plate | ||||||
| 17 | 419710 | 1 | 1 | 1 | Wear Plate | |||||
| 23 | 191130 | 1 | Valve Rubber | |||||||
| 23 | 191261 | 1 | 1 | Valve Rubber | ||||||
| 23 | 191380 | 1 | 1 | Valve Rubber | ||||||
| 23 | 191460 | 1 | 1 | 1 | Valve Rubber | |||||
| 25 | 191150 | 1 | Gasket | |||||||
| 25 | 191280 | 1 | 1 | Gasket | ||||||
| 25 | 191390 | 1 | 1 | Gasket | ||||||
| 25 | 191480 | 1 | 1 | 1 | Gasket | |||||
| 28 | 240360 | 1 | Mechanical Seal, 3/4″ ø | |||||||
| 28 | 240359 | 1 | 1 | 1 | 1 | Mechanical Seal, 1-1/4″ ø | ||||
| 28 | 240362 | 1 | 1 | 1 | Mechanical Seal, 1-1/2″ ø | |||||
| 29 | 119750 | 1 | Bolt, SST, 5/16″ UNC x 3/4″ | |||||||
| 29 | 124191 | 1 | 1 | 1 | 1 | Bolt, SST, 3/8″ UNC x 3/4″ | ||||
| 29 | 125795 | 1 | 1 | 1 | Bolt, SST, 1/2″ UNC x 1-1/4″ | |||||
| 30 | 164640 | 6 | 6 | 6 | Stud, 3/8″ UNC x 1-3/4″ | |||||
| 30 | 165251 | 6 | 6 | 6 | 6 | 6 | Stud, 3/8″ UNC x 2″ | |||
| 31 | 120010 | 4 | 4 | 4 | Bolt, 3/8″ UNC x 1″ | |||||
| 31 | 120250 | 4 | 4 | Bolt, 3/8″ UNC x 3″ | ||||||
| 31 | 120890 | 4 | 4 | 4 | Bolt, 3/8″ UNC x 3″ | |||||
| 33 | 143980 | 2 | 2 | 2 | 2 | 3 | Screw, 3/8″ UNC x 3/4″ SST | |||
| 34 | 225751 | 1 | 1 | 1 | 1 | 1 | Bolt, SST, 1/4″ UNC x 1″ | |||
| 34 | 125763 | 1 | 1 | 1 | Bolt, SST, 5/16″ UNC x 1″ | |||||
| 35 | 147360 | 3 | 3 | 3 | 4 | 4 | Screw, 1/4″ UNC x 3/4″ | |||
| 35 | 110790 | 3 | Bolt, 1/2″ UNC x 1″ | |||||||
| 35 | 120450 | 4 | 4 | Bolt, 1/2″ UNC x 1-1/2″ | ||||||
| 36 | 148350 | 1 | 1 | 1 | 1 | 1 | Set Screw, 5/16″ UNC x 5/16″ | |||
| 36 | 148300 | 1 | 1 | 1 | Set Screw, 5/16″ UNC x 3/4″ | |||||
| 37 | 110150 | 2 | Ball Bearing | |||||||
| 37 | 110170 | 2 | 2 | Ball Bearing | ||||||
| 37 | 110180 | 2 | 2 | Ball Bearing | ||||||
| 37 | 110061 | 2 | 2 | 2 | Ball Bearing | |||||
| 38 | 110760 | 1 | Bearing Lock Nut #N05 | |||||||
| 38 | 110780 | 1 | 1 | Bearing Lock Nut #N07 | ||||||
| 38 | 110790 | 1 | 1 | Bearing Lock Nut #N08 | ||||||
| 38 | 110800 | 1 | 1 | 1 | Bearing Lock Nut #N09 | |||||
| 39 | 111180 | 1 | Bearing Lock Washer #W05 | |||||||
| 39 | 111180 | 1 | 1 | Bearing Lock Washer #W07 | ||||||
| 39 | 111190 | 1 | 1 | Bearing Lock Washer #W08 | ||||||
| 39 | 111200 | 1 | 1 | 1 | Bearing Lock Washer #W09 | |||||
| 40 | 128230 | 6 | 6 | 6 | Nut, 3/8″ UNC | |||||
| 40 | 227850 | 6 | 6 | 6 | 6 | 6 | Nut, 1/2″ UNC | |||
| 42 | 128880 | 1 | 1 | 1 | 1 | 1 | 1 | Nut, 3/8″ UNC | ||
| 42 | 126845 | 1 | 1 | Nut, SST 5/16″ UNC | ||||||
| 43 | 176250 | 3 | 3 | 3 | 4 | 4 | Spring Washer, 1/2″ | |||
| 43 | 176530 | 3 | Spring Washer, 5/16″ | |||||||
| 43 | 176560 | 4 | 4 | Spring Washer, 1/2″ | ||||||
| 45 | 185610 | 2 | 2 | 2 | 2 | 2 | 2 | Washer SST 1/4″ | ||
| 46 | 174591 | 1 | 1 | Grease Fitting, 1/4″ NPT | ||||||
| 48 | 185610 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Plug, 3/4″ NPT | |
| 48 | 185660 | 1 | Plug, 1″ NPT | |||||||
| 50 | 185780 | 1 | 1 | 1 | Plug, 1-1/2″ NPT | |||||
| 50 | 185810 | 1 | 1 | 1 | 1 | 1 | Plug, 3″ NPT | |||
| 52 | 185620 | 1 | 1 | 1 | 1 | 1 | 1 | Plug, 1-1/4″ NPT | ||
| 53 | 432050 | 1 | Key | |||||||
| 53 | 432120 | 1 | 1 | 1 | 1 | Key | ||||
| 53 | 432160 | 1 | 1 | 1 | Key | |||||
*Note When replacing Type A Transmission Head order Type B Transmission Head, Item 10 (426214), Item 35 (120450), and Item 43 (176560).
Hydraulic Motor Adapter Kit (612881) — Repair Parts
| Ref.# | Code # | Quantity | Description |
|---|---|---|---|
| 1 | 426218 | 1 | Adapter |
| 2 | 426224 | 1 | Coupling |
| 3 | 432160 | 1 | Key |
| 5 | 148390 | 1 | Set Screw |
| 7 | 176250 | 2 | Spring Washer |
| 8 | 226670 | 2 | Bolt |
| 9 | 227850 | 2 | Nut |
All Monarch MIT Series repair parts and water pump components listed above are genuine OEM replacements. Whether you are servicing a Monarch MIT water pump for the first time or stocking essential spare parts, Ken’s Distributing carries the full Monarch MIT Series parts catalog. Contact us for availability and pricing on any Monarch MIT Series component.
Ordering Information
| IMPORTANT: | When ordering parts specify the model, code number and part description. |