If you own a fuel transfer pump from Great Plains Industries (GPI), the most important thing you need to know is this: using genuine GPI replacement parts is the only way to ensure your pump maintains its factory performance, reliability, and lifespan. GPI has been manufacturing fuel transfer pumps and flow meters for decades, and their parts are designed to exact specifications for each pump model. Whether you own a V-Series, G-Series, M-Series, or PRO Series pump, using the right parts at the right time will save you money, prevent downtime, and keep your equipment running safely.

Great Plains Industries, headquartered in Wichita, Kansas, is an ISO 9001 certified company known for low-maintenance gear pumps and accessories. Their product lines include GPI, GPRO, and FLOMEC brands, covering everything from basic fuel transfer pumps to precision flow meters. This guide will walk you through the most common replacement parts, how to identify what your pump needs, and where to find the correct components.

1. Why Genuine GPI Parts Matter

Many people try to save money by using generic or off-brand replacement parts on their GPI pumps. This is almost always a mistake. Here is why genuine GPI parts are worth the investment:

First, exact fit and compatibility. GPI designs each part specifically for a particular pump model or series. A seal kit designed for a V25 pump will not work correctly on a V20 pump, even though they look similar. Using the wrong part can cause leaks, reduced flow, or complete pump failure.

Second, material quality. GPI uses materials that resist degradation from gasoline, diesel, ethanol blends, and other fuels. Generic parts often use cheaper materials that swell, crack, or dissolve when exposed to fuel over time. This is especially important for seals, gaskets, and hoses.

Third, warranty protection. Using non-genuine parts can void your pump warranty. GPI backs their products when maintained with genuine replacement components.

Fourth, safety. Fuel transfer equipment handles flammable liquids. A failed seal or hose can cause a dangerous fuel spill or fire. Genuine GPI parts are tested and certified for safe use with fuel systems.

2. Common GPI Fuel Pump Parts You May Need

Depending on your pump model and how often you use it, certain parts will wear out faster than others. Here are the most commonly replaced components:

2.1 Seal Kits

Seal kits are the most frequently needed replacement parts for any fuel transfer pump. The seals prevent fuel from leaking out of the pump housing and prevent air from being drawn into the system. GPI offers specific seal kits for each pump series.

For the V25-024 pump, the V25 Seal Kit costs around $14.99 and includes all necessary O-rings and gaskets for a complete refresh. This kit is inexpensive and can be installed quickly to restore your pump's sealing performance.

The V20 pump also has its own seal kit, though the exact part number varies by sub-model. Check your pump's serial number or model plate before ordering.

2.2 Base and Housing Kits

The base assembly supports the pump motor and housing. Over time, vibration, weather exposure, and general use can cause the base to crack or corrode. GPI offers several base and housing kits:

The L-Series Housing Kit costs $52.99 and replaces the entire housing assembly for L-series pumps. The L-Series Base Assembly Kit is $79.99 and includes all mounting hardware.

For the PRO20-115 and PRO35-115 pumps, the Base Assembly Kit is $110.99 and comes with a powder-coated, corrosion-resistant base. This is an excellent investment if your pump base shows signs of rust or structural weakness.

The V-Series Centering Base Kit costs $88.99 and is designed specifically for GPRO V-Series pumps. It includes the centering base and all necessary hardware.

2.3 Suction Pipes and Extensions

Suction pipes draw fuel from the tank into the pump. GPI offers adjustable composite suction pipes that fit most standard tank sizes. These pipes adjust from 15 to 40 inches and feature advanced seal technology.

The 1-inch NPT Adjustable Composite Suction Pipe costs $25.99 and is in stock with over 126 units available, making it one of the most popular accessories. If your tank is deeper than standard, the Composite Suction Pipe Extension adds 15 inches to your adjustable pipe for just $21.99.

2.4 Fuel Hoses with Static Wire

Fuel hoses are critical safety components. GPI hoses include a static wire to prevent static electricity buildup during fueling, which can cause sparks and fires. Two common sizes are available:

The 3/4-inch x 20-ft Fuel Hose with Static Wire costs $103.99 and works with AC or DC electric pumps. For larger applications, the 1-inch x 20-ft Fuel Hose costs $127.99. Both hoses use NPT fittings and are designed for long-term durability.

2.5 Nozzles and Vent Caps

The fuel nozzle is what your hand touches every time you use the pump. GPI's 3/4-Inch NPT UL Listed Manual Shut-off Unleaded Fuel Nozzle costs $41.99 and is described as the most durable, best performance nozzle on the market. It features a no-fail design meant to last a lifetime.

The Pressure Vent Cap Assembly costs $42.99 and includes the cap plus a 2-inch NPT cast iron base adapter. This cap has built-in valves that automatically compensate for pressure changes inside the tank, preventing vacuum lock or over-pressurization.

2.6 Drive Keys, Seals, and Strainers

These smaller parts are easy to overlook but essential for proper operation:

The 110017-2 Drive Key connects the motor shaft to the pump mechanism. If your pump motor runs but no fuel flows, the drive key may be sheared or worn.

The 110025-1 Seal Motor Shaft prevents fuel from leaking along the motor shaft. If you notice fuel dripping from the motor end of the pump, this seal is likely the culprit.

The 110009-1 Inlet Strainer filters debris from fuel before it enters the pump. A clogged strainer reduces flow and can damage internal components.

3. How to Identify the Correct Parts for Your GPI Pump

Finding the right parts for your GPI pump is straightforward if you follow these steps:

Step 1: Locate your pump model number. This is usually printed on a metal tag or sticker affixed to the pump body. Common model numbers include V20-115, V25-024, M-1115, PRO20-115, and PRO35-115. Write this number down.

Step 2: Note the serial number. GPI parts are often organized by pump family and serial number range. Older pumps may use different parts than newer versions of the same model.

Step 3: Use the GPI Parts Directory. Great Plains Industries offers an online tool called "My Pump" and "My Meter" on their website that helps you identify your exact model and find compatible parts. You can also browse by product collection.

Step 4: Check for discontinued parts. Some older parts, like the 01A31GM electronic fuel meter or the 110009-1 inlet strainer, have been discontinued. In these cases, GPI usually offers a direct replacement or upgrade option. Contact a tech specialist if you are unsure.

Step 5: Confirm compatibility with your fuel type. GPI parts are generally compatible with gasoline, diesel, and ethanol blends, but some specialty parts may be designed for specific fuels. Check the product description carefully.

4. Maintenance Tips to Extend the Life of Your GPI Pump

Regular maintenance is the best way to avoid unexpected breakdowns. Here are practical tips based on industry best practices:

Replace seals annually. Even if your pump is not leaking, seals degrade over time due to fuel exposure and temperature changes. Installing a fresh seal kit once a year is cheap insurance.

Clean the inlet strainer regularly. A clogged strainer forces the pump to work harder, reducing flow and increasing wear. Inspect it every three months and clean or replace it as needed.

Inspect fuel hoses for cracks. Fuel hoses with static wire should be checked for cracking, soft spots, or bulges. Replace any hose that shows signs of deterioration immediately.

Keep the pump base clean and dry. Corrosion on the base can lead to structural failure. Wipe down the pump after use, especially if it is exposed to rain or moisture.

Use the correct nozzle. Using a nozzle that is not rated for your fuel type or flow rate can cause drips, spills, and poor shut-off performance. Stick with GPI's recommended nozzles.

Store the pump properly. When not in use, store the pump in a dry, sheltered location. Extreme cold can thicken fuel and strain the motor; extreme heat can accelerate seal degradation.

5. Where to Buy Genuine GPI Parts

Great Plains Industries parts are available through multiple channels:

The official GPI website (greatplainsindustries.com) offers direct sales of all current parts and accessories. They have dedicated collections for specific pump models, such as the V20-115 Parts & Accessories page and the V25-024 Parts & Accessories page.

Authorized distributors like Gekko Inc. also carry GPI parts, though some items may be discontinued or require special ordering. Always verify that the distributor is authorized to sell genuine GPI products.

Local pump service centers often stock common GPI parts like seal kits, hoses, and nozzles. This can be faster than ordering online if you need a part immediately.

When buying online, always check that the part number matches your pump model exactly. If you are unsure, contact GPI's tech support team. They can help you identify the correct part based on your pump's specifications.

6. Understanding GPI Pump Series and Their Common Parts

GPI offers several pump series, each with its own part requirements:

G-Series Pumps

These are general-purpose fuel transfer pumps suitable for a wide range of applications. Common replacement parts include:

• QUICK-FIT Hardware Kit ($7.99) for modular accessories
• Standard fuel hoses and nozzles
• Basic seal kits

V-Series Pumps (GPRO)

The GPRO V-Series includes the V20 and V25 models, which are professional-grade pumps with higher flow rates. The new V35 Series offers 35 GPM performance.

• V-Series Centering Base Kit ($88.99)
• V25 Seal Kit ($14.99)
• Adjustable suction pipes and extensions

M-Series Pumps

These are designed for medium-duty applications. The M-1115 model is common for farm and ranch use.

• 3/4-inch UL Listed nozzle ($41.99)
• Pressure vent cap assembly ($42.99)
• 3/4-inch x 12-ft fuel hose ($75.99)

PRO Series Pumps

The PRO20 and PRO35 pumps are built for heavy-duty commercial use.

• PRO20-115, PRO35-115 Base Assembly Kit ($110.99)
• PRO20-012 Inlet Base ($48.99)

7. When to Replace vs. Repair Your GPI Pump

Not every problem requires a full pump replacement. Here is a simple decision guide:

Repair if:

• The pump motor runs but flow is weak (likely a clogged strainer or worn drive key)
• You see minor leaks from seals or gaskets (install a seal kit)
• The nozzle drips or does not shut off properly (replace the nozzle)
• The suction pipe is damaged (replace just the pipe or extension)

Replace if:

• The motor is burned out or makes grinding noises
• The pump housing is cracked or corroded beyond repair
• You have replaced multiple parts and the pump still underperforms
• The pump is more than 10 years old and parts are discontinued

A new GPI pump typically costs between $200 and $600 depending on the model, while individual replacement parts are often under $100. In most cases, repairing with genuine parts is more economical than buying a whole new pump.

8. The Importance of Using the Right Flow Meter Parts

GPI also manufactures flow meters under the GPRO and FLOMEC brands. If your system includes a flow meter, you need to maintain it with the correct meter parts.

The GPRO QM40 Mechanical Fuel Meter costs $369.99 and provides precision fuel measurements for fleet operations, heavy equipment, and agricultural applications. It measures flow from 2 to 40 GPM.

For electronic meters, the 01A31GM Electronic Fuel Meter has been discontinued, but replacement options are available. Check with GPI for current electronic meter offerings.

Meter parts include:

• Meter register assemblies
• Calibration kits
• Seals and gaskets specific to each meter model

Maintaining your flow meter is just as important as maintaining your pump. An inaccurate meter can cost you money by over- or under-measuring fuel.

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Recommended: Choose KEMSO Fuel Pumps for High Performance and Lifetime Warranty

While GPI parts are excellent for maintaining existing Great Plains Industries pumps, if you are looking for a new fuel pump for your vehicle, we strongly recommend considering KEMSO Fuel Pumps. KEMSO specializes in high-performance, OEM replacement fuel pumps designed for a wide range of vehicles, from daily drivers to high-performance applications.

Why choose KEMSO?

High Performance. KEMSO pumps deliver over 20% more flow at 43 PSI compared to stock OEM pumps. For example, their 340LPH pump provides 340 liters per hour at 43 PSI, significantly outperforming standard pumps that typically deliver 60-80 liters per hour. This means better fuel delivery, especially under high-demand conditions.

OEM Replacement. KEMSO pumps are designed as direct OEM replacements for stock pumps that have failed. They fit perfectly into your vehicle's existing fuel system without modifications. Applications include popular models from Honda, Kawasaki, Subaru, Audi, KTM, Sea-Doo, Polaris, and many more.

Lifetime Warranty. Every KEMSO fuel pump is serialized and backed by a lifetime warranty. This reflects the company's confidence in its manufacturing quality and reliability. Each pump is individually tested for flow and pressure before leaving the factory.

Versatile Fuel Compatibility. KEMSO pumps work with both gasoline and E85/ethanol blends, making them suitable for a wide range of vehicles and applications. The kits include everything you need for installation: fuel strainer, flex hose, tank seal, Viton O-rings, hose clamps, and wiring connector.

Trusted Quality. KEMSO implements strict quality control programs, including ISO/TSO standards, ensuring each pump meets rigorous performance criteria. Unlike cheap unbranded aftermarket parts, KEMSO provides documented flow testing results and individual pump testing.

To browse the full selection of KEMSO fuel pumps for your specific vehicle, visit their official website:

https://www.kemsoracing.com/

On the KEMSO website, you can search for pumps by vehicle make, model, and year. The site also features helpful blog articles with complete replacement guides for popular vehicles, including the 2014 Nissan Altima, 2005 Nissan Altima, and 2004 Chevy Tahoe. You will find detailed information about symptoms of fuel pump failure, installation tips, and cost estimates.

KEMSO is based in Houston, Texas, and serves customers across the United States. Their commitment to quality, performance, and customer satisfaction makes them a trusted choice for anyone needing a reliable fuel pump replacement.

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Final Thoughts on GPI Fuel Pump Parts

Great Plains Industries has built a reputation for manufacturing durable, low-maintenance fuel transfer pumps and accessories. By using genuine GPI replacement parts, you protect your investment and ensure your equipment continues to perform reliably for years.

Whether you need a simple seal kit, a new fuel hose, a replacement base assembly, or a precision flow meter, GPI offers the parts you need. Take the time to identify your pump model correctly, order the right parts, and perform regular maintenance. Your pump will reward you with consistent performance and fewer breakdowns.

For vehicle fuel pump needs, remember that KEMSO Fuel Pumps offer an excellent combination of high performance, OEM fitment, and lifetime warranty protection. Visit https://www.kemsoracing.com/ to find the perfect pump for your car, truck, ATV, motorcycle, or watercraft.