Franklin Electric FMIG Gas Engine Self-Priming Pump & Parts
FMIG Pump Manuals & Resources
The Franklin Electric FMIG series comprises gas-engine-driven, self-priming centrifugal pumps for irrigation, construction dewatering, mining, municipal, commercial, and light-industrial water transfer. The cast gray iron pump body, semi-open impeller, and removable front cover are designed for locations where electric utility power is unavailable or inconvenient.
Choose between a 3-inch Honda-powered FMIG30-13H and a 4-inch Kohler-powered FMIG40-18K on Franklin Electric’s current product listing. Historical Franklin literature also documents an FMIG40-27K variant; its specifications and part references appear separately below for identifying existing equipment. For pricing, current availability, and help selecting a pump, request a quote from Ken’s Distributing Company.
FMIG features and benefits
- Self-priming cast gray iron volute: Priming and drain plugs support initial setup, maintenance, and seasonal storage.
- Built-in check valve: Located in the removable front cover to assist priming and simplify inspection.
- Semi-open cast iron impeller: Designed for water and limited amounts of mud, sand, or silt, up to 10% by volume according to Franklin Electric’s current series description.
- Replaceable steel wear plate: Service the wear surface instead of replacing the complete pump end when appropriate.
- Mechanical seal: Carbon/ceramic faces, FKM elastomers, and 300-series stainless steel components.
- Gas engine operation: Honda and Kohler configurations; installed pump units use horizontal mounting.
FMIG technical specifications
| Specification | Details |
|---|---|
| Pump type | Gas engine-driven self-priming centrifugal |
| Current Franklin application range | Up to 300 GPM for applications requiring approximately 50–60 PSI; select by individual performance curve |
| Historical series figures | Up to 400 GPM capacity and 165 ft of head, with 120 PSI maximum working pressure, in Franklin’s February 2014 catalog. These values describe different limits and are not a single duty point. |
| Maximum liquid temperature | 212°F (historical Franklin series catalog) |
| Impeller | Semi-open cast iron, two-vane in historical documentation |
| Fluid solids | Small quantities of mud, sand or silt, up to 10% by volume, subject to operating conditions |
| Volute | Cast gray iron, self-priming with front-cover check valve |
| Mechanical seal | Carbon/ceramic faces, FKM elastomers, 300-series stainless steel |
| Wear plate | Replaceable steel |
| Ports | 3 × 3 in. FNPT (FMIG30-13H) or 4 × 4 in. FNPT (FMIG40 series) |
| Rotation | Clockwise when viewed from the shaft/engine side, as specified by Franklin |
| Mounting | Horizontal |
Performance clarification: Franklin’s current FMIG family page describes an application range of up to 300 GPM and 50–60 PSI; an earlier Franklin catalog specifies up to 400 GPM and 165 ft of head. These are publication-specific figures, not guaranteed simultaneous conditions. Franklin’s individual FMIG30-13H product listing also includes a separate 327 GPM flow rating. Use the model performance curve and system duty point for sizing.
Current FMIG ordering information
| Pump size (discharge × suction) | Engine displacement in Franklin listings (cc) | Model | Engine | Order no. | Low-oil shutoff | Weight (lb) |
|---|---|---|---|---|---|---|
| 3″ x 3″ | 289 | FMIG30-13H | Honda with 6.9 qt. fuel tank | 90281113 | YES | 270 |
| 4″ x 4″ | 624 | FMIG40-18K | Kohler | 90281218 | YES | 320 |
Select the FMIG30-13H (90281113) for the 3-inch Honda configuration or the FMIG40-18K (90281218) for the 4-inch Kohler configuration. Both are listed on Franklin Electric’s current FMIG product page; verify present inventory and lead time when requesting a quote.
Historical FMIG40-27K ordering reference
| Pump size (discharge × suction) | Engine displacement in Franklin listings (cc) | Model | Engine | Order no. | Low-oil shutoff | Weight (lb) |
|---|---|---|---|---|---|---|
| 4″ x 4″ | 725 | FMIG40-27K | Kohler | 90281227 | YES | 320 |
The FMIG40-27K (90281227) appears in an older Franklin Electric catalog, with a Kohler engine and 4-inch ports. It is not listed among the current FMIG model options on Franklin’s product page. Retained here to support older-equipment identification and parts enquiries, not as a statement of current availability.
In the historical catalog, the asterisk on the Kohler pump models denotes electric start; the manufacturer notes that the battery, fuel tank, and cables are not included. Confirm the exact package configuration before purchase.
Engine identification check: Franklin’s older FMIG catalog and current product listing show 289 cc for FMIG30-13H, but the historical engine replacement table names a Honda GX390, which Honda specifies as 389 cc. Confirm the engine model and serial number against the actual unit before ordering engine parts. The manufacturer-supplied figures are reproduced in the historical tables below for traceability.
FMIG exploded parts drawing
FMIG repair parts and materials
Use the figure number, pump model, and engine identification to match replacement components. The FMIG40-27K column is retained for older units. Parts availability and interchangeability should be confirmed before ordering.
| Figure | Part description | FMIG30-13H | FMIG40-18K / FMIG40-27K | Material |
|---|---|---|---|---|
| 1 | FMIG Pump Case | 305455002 | 305455003 | Cast Iron, ASTM-A48 CL30 |
| 2 | FMIG Impeller | See Table 1 | See Table 1 | Cast Iron, ASTM-A48 CL30 |
| 3 | FMIG Motor Adapter | 305456001 | 305456002 | Cast Iron, ASTM-A48 CL30 |
| 12 | FMIG Mechanical Seal Shaft Sleeve | 305456003 | 305456004 | 416-Stainless steel |
| 35 | FMIG Impeller Shaft Key | 305456005 | 305456006 | 316-Stainless steel |
| 70 | FMIG Base, Engine Frame | 305456007 | 305455018 * | CRS |
| 71 | FMIG Wear Plate | 305455008 | 305455009 | CRS |
| 72 | FMIG Check Valve (called “Suction Flange” in the original Kendisco table) | 305454019 | 305454020 | CRS |
| 73A | FMIG Top Weight- Check Valve | 305454022 | 305454023 | Cast Iron, ASTM-A48 CL30 |
| 73B | FMIG Bottom Weight – Check Valve | 305454025 | 305454025 | Cast Iron, ASTM-A48 CL30 |
| 90 | FMIG Mechanical Shaft Seal | 305463043 | 305463044 | Carbon/Ceramic/FKM/316SS |
| 100A | FMIG Case Gasket | 305454041 | 305454042 | NA60 |
| 100B | FMIG Flapper Valve | 305454044 | 305454045 | Neoprene |
| 100C | FMIG O-ring – Motor Bracket (4-Pack) | 305463087 | N/A | FKM |
| 200 | FMIG Engine | See Table 1 | See Table 1 | Misc. |
| 500A | FMIG Pipe Plug 3″ (3-Pack) | 305463076 | 305463076 | CAD-plated steel |
| 500B | FMIG Pipe Plug 3/4″ (3-Pack) | 305463050 | 305463050 | CAD-plated steel |
| 503 | FMIG Water Slinger | 305456009 | 305456010 | Neoprene |
| 510 | FMIG Impeller Hex Cap Screw | 305463088 | 305463211 | 18-8 Stainless steel |
| 520 | FMIG Impeller Washer | 305456011 | 305456012 | 300-Series stainless steel |
| 531 | FMIG Threaded Stud (6-Pack) | 305463089 | 305463089 | Zinc-plated steel |
| 530A | FMIG Screw, Flat Head Slotted (6-Pack) | 305463079 | 305463079 | Zinc-plated steel |
| 530B | FMIG Bolt, Flapper | 305463080 | 305463058 | 300-Series stainless steel |
| 530C | FMIG Hex Nuts – Adapter/Case (6-Pack) | 305463059 | 305463059 | Zinc-plated steel |
| 530D | FMIG Lockwasher – Adapter/Case (6-Pack) | 305463060 | 305463060 | Zinc-plated steel |
| 530E | FMIG Nut, Flapper | 305463082 | 305463062 | 300-Series stainless steel |
| 530F | FMIG Washer, Flapper | 305463084 | N/A | 300-Series stainless steel |
| 530G | FMIG Valve Hex Cap Screw (4-Pack) | 305463085 | 305463086 | Zinc-plated steel |
| 530H | FMIG Lockwasher – Base/Engine (8-Pack) | 305463032 | 305463032 | Zinc-plated steel |
| 530J | FMIG Hex Nut – Base/Engine (8-Pack) | 305463033 | 305463033 | Zinc-plated steel |
| 530K | FMIG Hex Bolt – Base/Engine (4-Pack) | 305463090 | 305463179 | Zinc-plated steel |
| 530L | FMIG Washer – Base/Engine (4-Pack) | 305454046 | 305454046 | Zinc-plated steel |
| 530M | FMIG Hex Bolt – Motor/Adapter (4-Pack) | 305463091 | 305463162 | Zinc-plated steel |
| Not Shown | FMIG Lockwasher – Motor/Adapter | N/A | 305463212 | Zinc-plated steel |
| Not Shown | FMIG Flapper Valve Assembly Kit | 305455021 | 305455022 | Various |
Parts-table terminology: Franklin’s historical catalog calls figure 72 the check valve; the older Kendisco table called it the suction flange. Original part numbers 305454019 (FMIG30-13H) and 305454020 (FMIG40 series) have been retained. The asterisk on base/frame part 305455018 indicates that the historical assembly includes base, channels, and hardware.
Replacement impeller part numbers
| Replacement Impeller | |||
|---|---|---|---|
| Model | Part Description | Part No. | Materials of Construction |
| FMIG30-13H | Impeller | 305456013 | Cast Iron, ASTM-A48 CL30 |
| FMIG40-18K | Impeller | 305456014 | Cast Iron, ASTM-A48 CL30 |
| FMIG40-27K | Impeller | 305456015 | Cast Iron, ASTM-A48 CL30 |
Engine replacement references
| Model | Engine Description | Part No. |
|---|---|---|
| FMIG30-13H | Eng Honda GX390U1QAE2 289cc OHV | 202258 |
| FMIG40-18K | Eng Kohler CH620-0017 624cc | 202253 |
| FMIG40-27K | Eng Kohler CH740-0124 725cc | 202259 |
Flapper valve assembly kits
| Flapper Valve Assembly Kit | ||
|---|---|---|
| Model | Part No. | Includes |
| FMIG30-13H | 305455021 | 100B, 73A, 73B, 530B, 530E, 530F |
| FMIG40-18K, FMIG40-27K | 305455022 | 100B, 73A, 73B, 530B, 530E |
The FMIG30-13H kit 305455021 includes figures 100B, 73A, 73B, 530B, 530E, and 530F. The FMIG40 series kit 305455022 includes figures 100B, 73A, 73B, 530B, and 530E. Check the pump’s model and production information before ordering.
FMIG dimensions
| Model | H | K | M | N | O | Q | R |
|---|---|---|---|---|---|---|---|
| FMIG30-13H | 12.75 | 17.25 | 11.50 | 17.50 | 15.85 | N/A | 24.60 |
| FMIG40-18K | 15.50 | 17.74 | 8.87 | 28.25 | 26.31 | 21.37 | 29.95 |
| FMIG40-27K | 15.50 | 17.74 | 8.87 | 28.25 | 26.31 | 21.37 | 29.95 |
All dimensions are in inches and are for estimating purposes only. Consult the model’s current installation documentation before fabricating mounting bases or fitting a replacement pump.
FMIG performance curves
Use the curve for the exact model and planned engine speed to compare required flow, head, and suction conditions. The maximum series flow, maximum head, and maximum working pressure are not simultaneous guarantees.
Applications
- Irrigation and agricultural transfer: Moving water from ponds, storage tanks, and other approved sources at remote sites.
- Construction dewatering: Pumping water that may contain limited quantities of suspended mud, sand, or silt within the manufacturer’s limits.
- Mining and industrial service: Temporary water movement where a self-contained engine drive is preferred.
- Municipal and commercial work: Portable transfer and temporary water-handling assignments.
Installation, priming and maintenance considerations
- Initial priming: Fill the pump housing through the priming plug before startup. Self-priming does not mean the pump can run dry.
- Engine setup: Follow the relevant Honda or Kohler engine manual. Kohler electric-start versions require confirmation of starting accessories and fuel supply.
- Piping: Match NPT connections to the correct 3-inch or 4-inch model. Keep suction connections airtight and follow the installation manual for suction lift and line sizing.
- Seal protection: Avoid dry running, which can damage the mechanical seal.
- Wear components: Inspect the replaceable wear plate, flapper/check valve assembly, and mechanical seal during periodic service.
- Freeze protection: Drain the pump completely before freezing storage conditions.
Frequently asked questions
Is the Franklin Electric FMIG self-priming?
Yes. The cast gray iron housing and removable front cover include a built-in check valve designed to assist self-priming. The housing must still be filled before initial startup and must not be operated dry.
Which FMIG models are listed in Franklin Electric’s current catalog?
FMIG30-13H (90281113), a 3-inch Honda-powered unit, and FMIG40-18K (90281218), a 4-inch Kohler-powered unit. Historical manufacturer documentation also includes the FMIG40-27K (90281227).
What is the rated FMIG flow capacity?
Franklin’s current series description targets applications up to 300 GPM with 50–60 PSI. An older catalog describes capacities up to 400 GPM and heads up to 165 feet. A separate individual-model listing shows a 327 GPM flow rating. Select the appropriate model from its actual performance curve rather than combining these maxima.
What solids can the FMIG handle?
The manufacturer describes a semi-open cast iron impeller capable of handling small quantities of mud, sand, and silt up to 10% by volume. The pump is not a substitute for a dedicated trash or sewage pump, and application suitability depends on solids size and operating conditions.
Where can I find replacement impellers or flapper valve kits?
The model-specific replacement impeller, mechanical seal, and flapper valve kits are listed in the tables above. Provide your model, order number, and engine information to Ken’s Distributing Company so the correct parts can be identified.
Request a quote for Franklin Electric FMIG pumps and parts
Ken’s Distributing Company can help with FMIG pump selection, model identification, performance curves, and replacement-parts enquiries. Call 303-699-7845 or use the quote form on this product page to request pricing and availability.
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