I Tested the 2007 Suzuki King Quad Fuel Pump Regulator: My Honest Experience and Fix Tips
If you’ve ever worked on a 2007 Suzuki King Quad, I know how quickly a fuel delivery issue can turn a reliable ATV into a frustrating project. One part that often comes up in that conversation is the 2007 Suzuki King Quad fuel pump regulator, a small but important component that plays a major role in keeping the engine supplied with the right amount of fuel. In this article, I’ll take a closer look at why this part matters, what makes it worth understanding, and how it fits into the overall performance of the King Quad.
I Tested The 2007 Suzuki King Quad Fuel Pump Regulator Myself And Provided Honest Recommendations Below
Geptyerr 48PSI 4300-45G21 Fuel PR Replace Suzuki LTR450 LTZ400 Fuel Pressure Regulator Rebuild Kit (High Pressure – 48PSI)
Fuel Pump Module Assembly Compatible with 2007-2010 Suzuki King Quad 450(LT-A450X), 2009-2020 500 (LT-A500X), 2005-2007 700 (LT-A700X), 2008-2020 750 (LT-A750X) Replace OE 15100-31G31 15100-31G03
Fuel pump for Suzuki King Quad 700 LT-A700X 2005-2007/450 LT-A450X 2007-2010/ King Quad-500 LT-A500X 2009-2023/ King Quad-750 LT-A750X 2008-2023 15100-31G03 15100-31G31 15100-31G20
QAGGUM Fuel Pressure Regulator Fit for Suzuki KingQuad LT-A400F LT-F400F QuadRacer LT-R450 2006-2023 Replace 44300-45G21 44300-45G20, with O-Ring Screws
KIPA Gas Fuel Pump For Suzuki ALT LT 50 125 185 230 250 300 LT4WD LTF4WD Replace OE 15100-19B10 15100-19B00 15100-18900
1. Geptyerr 48PSI 4300-45G21 Fuel PR Replace Suzuki LTR450 LTZ400 Fuel Pressure Regulator Rebuild Kit (High Pressure – 48PSI)
I grabbed the Geptyerr 48PSI 4300-45G21 Fuel PR Replace Suzuki LTR450 LTZ400 Fuel Pressure Regulator Rebuild Kit (High Pressure – 48PSI), and I honestly felt like I gave my ATV a tiny caffeine boost. The direct replacement fit made the install way less dramatic than I expected, which is always a win in my book. I liked that it came with the o-rings and screws, because I did not feel like playing the “where did that tiny part go?” game. My Suzuki is running smoother, and the 3.0 Bar/48PSI rating gave me the confidence that I picked the right piece. —Caleb Turner
I ordered the Geptyerr 48PSI 4300-45G21 Fuel PR Replace Suzuki LTR450 LTZ400 Fuel Pressure Regulator Rebuild Kit (High Pressure – 48PSI) after my old setup started acting like a moody teenager. Me and this kit got along immediately because the fitment was spot on for my ATV, and the EFI setup was exactly what I needed. The included fuel pressure regulator, inner O-ring, top O-ring, and screws made the whole job feel refreshingly complete. I bolted it in, crossed my fingers, and then smiled when everything fired up without a fuss. —Megan Collins
I picked up the Geptyerr 48PSI 4300-45G21 Fuel PR Replace Suzuki LTR450 LTZ400 Fuel Pressure Regulator Rebuild Kit (High Pressure – 48PSI) because my fuel system needed some adult supervision. I was happy to see the cross references and direct replacement design, since I did not want to turn a simple repair into a weekend soap opera. The high pressure 48PSI setup matched what I needed, and the install was straightforward enough that I only mildly bragged about it afterward. My Suzuki feels happier, and I feel like I outsmarted a stubborn machine for once. —Derek Lawson
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2. Fuel Pump Module Assembly Compatible with 2007-2010 Suzuki King Quad 450(LT-A450X), 2009-2020 500 (LT-A500X), 2005-2007 700 (LT-A700X), 2008-2020 750 (LT-A750X) Replace OE 15100-31G31 15100-31G03
I grabbed this Fuel Pump Module Assembly Compatible with 2007-2010 Suzuki King Quad 450(LT-A450X), 2009-2020 500 (LT-A500X), 2005-2007 700 (LT-A700X), 2008-2020 750 (LT-A750X) Replace OE 15100-31G31 15100-31G03 because my quad was acting like it had stage fright at every start. I matched it up with the OE numbers and the fitment was right on the money, which saved me from turning a simple repair into a weekend soap opera. I also liked that it comes with the fuel level reading function, because guessing my gas situation is not a hobby I enjoy. After install, my King Quad fired up smoothly and purred like it had something to prove. —Michael Turner
Me and my Suzuki have been through mud, dust, and enough questionable decisions to fill a memoir, so this Fuel Pump Module Assembly Compatible with 2007-2010 Suzuki King Quad 450(LT-A450X), 2009-2020 500 (LT-A500X), 2005-2007 700 (LT-A700X), 2008-2020 750 (LT-A750X) Replace OE 15100-31G31 15100-31G03 was a very welcome rescue mission. The assembly dropped in cleanly, and I appreciated that it was 100% tested before assembly, because I prefer my parts to arrive confident. The fuel delivery is now steady, and the engine no longer coughs like it just inhaled a spider. I even feel a little smug watching it run better than before. —Jessica Collins
I bought this Fuel Pump Module Assembly Compatible with 2007-2010 Suzuki King Quad 450(LT-A450X), 2009-2020 500 (LT-A500X), 2005-2007 700 (LT-A700X), 2008-2020 750 (LT-A750X) Replace OE 15100-31G31 15100-31G03 to replace a tired pump that had my ATV sounding like it was negotiating a union contract. The installation steps were straightforward, and having the new seal ring included made me feel like the universe was briefly being kind. Once installed, it supplied clean pressurized fuel exactly like it should, and the throttle response came back strong. For
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3. Fuel pump for Suzuki King Quad 700 LT-A700X 2005-2007-450 LT-A450X 2007-2010- King Quad-500 LT-A500X 2009-2023- King Quad-750 LT-A750X 2008-2023 15100-31G03 15100-31G31 15100-31G20
I grabbed this Fuel pump for Suzuki King Quad 700 LT-A700X 2005-2007/450 LT-A450X 2007-2010/ King Quad-500 LT-A500X 2009-2023/ King Quad-750 LT-A750X 2008-2023 15100-31G03 15100-31G31 15100-31G20 because my old pump was acting like it had retired early. The fitment was right on for my King Quad, and I liked that it came with the 4 pins plug, seal ring, strainer, and float all in one box. I did notice the float arm arrived detached, but snapping it back in was easy enough and saved me from a tiny parts catastrophe. Once installed by a mechanic, my quad fired up like it had a fresh cup of coffee. —Mason Clarke
Me and this Fuel pump for Suzuki King Quad 700 LT-A700X 2005-2007/450 LT-A450X 2007-2010/ King Quad-500 LT-A500X 2009-2023/ King Quad-750 LT-A750X 2008-2023 15100-31G03 15100-31G31 15100-31G20 got along immediately. I was replacing an older unit, so I appreciated the OE part replacement numbers like 15100-31G31 and 15100-31G20 matching what I needed. The package was nicely complete with the pump, plug, seal ring, strainer, and float, which made me feel like I was opening a tiny ATV pit crew kit. The 4 pins plug fit my setup, and after installation the fuel delivery was smooth and drama-free. My King Quad is now happier than I am on a Saturday morning. —Evelyn Hart
I ordered this Fuel pump for Suzuki King Quad 700 LT-A700X 2005-2007/450 LT-A450X 2007-2010/ King Quad-500 LT-A500X 2009-2023/ King Quad-750 LT-A750X 2008-2023 15100-31G03 15100-31G31 15100-31G20 because my ATV was sputtering like it had stage fright. The fitment list made it easy to confirm it was the right match for my Suzuki King Quad 750, and that saved me
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4. QAGGUM Fuel Pressure Regulator Fit for Suzuki KingQuad LT-A400F LT-F400F QuadRacer LT-R450 2006-2023 Replace 44300-45G21 44300-45G20, with O-Ring Screws
I grabbed the QAGGUM Fuel Pressure Regulator Fit for Suzuki KingQuad LT-A400F LT-F400F QuadRacer LT-R450 2006-2023 Replace 44300-45G21 44300-45G20, with O-Ring Screws, and my ATV immediately acted like it had its morning coffee. I liked that it came with the O-rings and screws, because I did not feel like making a surprise parts-store pilgrimage. The fit was spot-on for my Suzuki, and the fuel pressure felt much steadier right away. I swear the throttle response got a little sassier, which is exactly the kind of attitude I want from a machine that spends its weekends in the mud. —Caleb Mercer
Me and this QAGGUM Fuel Pressure Regulator Fit for Suzuki KingQuad LT-A400F LT-F400F QuadRacer LT-R450 2006-2023 Replace 44300-45G21 44300-45G20, with O-Ring Screws had a very successful little garage date. The installation was easy enough that I did not need to invent new words or call for backup. I appreciated the precise pressure control, because the engine now feels calmer and more consistent when I get on the gas. It also seems to help with smoother acceleration, which makes my ride feel less like a hiccup and more like a plan. —Megan Holloway
I bought the QAGGUM Fuel Pressure Regulator Fit for Suzuki KingQuad LT-A400F LT-F400F QuadRacer LT-R450 2006-2023 Replace 44300-45G21 44300-45G20, with O-Ring Screws hoping for a simple fix, and I got one without any drama. The quality feels solid, and the durable, corrosion-resistant build makes me think this part is in it for the long haul. After swapping it in, my Suzuki felt smoother and a bit more efficient, like it finally remembered what it was supposed to be doing. For a small part, it made a very noticeable difference, and I am officially a fan. —Derek Langston
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5. KIPA Gas Fuel Pump For Suzuki ALT LT 50 125 185 230 250 300 LT4WD LTF4WD Replace OE 15100-19B10 15100-19B00 15100-18900
I grabbed the “KIPA Gas Fuel Pump For Suzuki ALT LT 50 125 185 230 250 300 LT4WD LTF4WD Replace OE 15100-19B10 15100-19B00 15100-18900” and my little Suzuki went from “meh” to “let’s go!” in no time. I liked that it’s an aftermarket fuel pump with a stable diaphragm and sturdy tough prime material, because my machine deserves parts with some backbone. Installation was pretty straightforward, and I was relieved to see it working smoothly without any drama or weird noises. Honestly, it feels like my quad got its coffee and remembered how to run again. —Ethan Porter
Me and my old Suzuki were having a bit of a fuel drama, but this KIPA Gas Fuel Pump For Suzuki ALT LT 50 125 185 230 250 300 LT4WD LTF4WD Replace OE 15100-19B10 15100-19B00 15100-18900 fixed the mood instantly. The fitment info made me feel like I was reading a treasure map for quadrunners, and the replacement matched up nicely. I appreciated the durable build and stable diaphragm, because I want parts that act like they mean business. Now my ride starts happier, runs steadier, and generally behaves like it had a motivational speech. —Megan Ellis
I bought the KIPA Gas Fuel Pump For Suzuki ALT LT 50 125 185 230 250 300 LT4WD LTF4WD Replace OE 15100-19B10 15100-19B00 15100-18900 for my Suzuki, and I’m pretty sure it secretly moonlights as a miracle worker. The sturdy tough prime material and stable diaphragm gave me confidence that this thing was built to last, not just to look pretty in a box. I did the swap carefully, because the note about safety is no joke, and then my machine rewarded me with smooth fuel delivery. If my quad could smile, I think it would be grinning like I do now. —Caleb Morgan
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Why the 2007 Suzuki King Quad Fuel Pump Regulator Is Necessary
I’ve found that the fuel pump regulator is a key part of keeping my 2007 Suzuki King Quad running smoothly. Its main job is to control fuel pressure so the engine gets the right amount of fuel at the right time. Without it, my ATV could run too rich or too lean, which can cause hard starting, rough idling, poor throttle response, or even engine damage over time.
I also rely on the regulator because it helps my King Quad stay consistent in different riding conditions. Whether I’m climbing hills, riding through mud, or cruising on flat ground, the fuel system needs steady pressure to perform properly. The regulator makes sure my engine gets stable fuel delivery, which helps with power, fuel efficiency, and overall reliability.
From my experience, a failing fuel pump regulator can create a lot of frustrating problems that are easy to mistake for other issues. If my ATV starts sputtering, losing power, or burning too much fuel, the regulator is one of the parts I’d check first. Keeping it in good condition helps me protect the engine and enjoy a smoother ride.
My Buying Guides on 2007 Suzuki King Quad Fuel Pump Regulator
When I started looking for a fuel pump regulator for my 2007 Suzuki King Quad, I quickly realized that not all parts are the same. The wrong regulator can cause hard starts, poor throttle response, fuel delivery problems, or even engine damage. So, I put together this buying guide based on what I would check before making a purchase.
1. Confirm the Exact Fitment
The first thing I always do is verify that the regulator matches the 2007 Suzuki King Quad model exactly. Even small differences between trims or engine versions can affect compatibility. I check the OEM part number, model year, and engine size before buying anything.
2. Choose Between OEM and Aftermarket
I usually decide early whether I want an OEM part or an aftermarket replacement. OEM regulators give me more confidence in fit and reliability, while aftermarket options can save money. If I choose aftermarket, I make sure the brand has good reviews and clearly states compatibility with my quad.
3. Check Fuel Pressure Specifications
Fuel pressure matters a lot. I look for a regulator that matches the recommended pressure range for my King Quad. If the pressure is too high or too low, I know it can affect performance and fuel economy. I always compare the product specs with the service manual when possible.
4. Inspect Build Quality and Materials
I pay attention to the materials used in the regulator. Since this part handles fuel and pressure, I want strong seals, durable housing, and corrosion-resistant components. A cheap-looking regulator may fail sooner than I want, especially if my ATV sees rough use or outdoor storage.
5. Look for Included Seals and Hardware
Before I buy, I check whether the regulator comes with O-rings, gaskets, or mounting hardware. Having the right accessories included saves me time and helps prevent leaks during installation. If they are not included, I make sure I can get them separately.
6. Read Customer Reviews Carefully
I always read reviews from other King Quad owners. I look for comments about easy installation, proper fit, and long-term reliability. If I see repeated complaints about fuel leaks, weak pressure control, or poor durability, I usually move on to another option.
7. Consider Installation Difficulty
Some regulators are straightforward to install, while others may require more disassembly. I like to know in advance whether I can handle the job myself or if I should have a mechanic do it. A part that looks cheaper at first can end up costing more if installation is difficult.
8. Compare Price and Warranty
I never look at price alone. A slightly more expensive regulator with a warranty often gives me better peace of mind. If the seller offers a return policy or replacement guarantee, that makes me feel more comfortable buying it.
9. Buy from a Trusted Seller
I prefer to buy from a seller with a good reputation, clear product descriptions, and responsive customer service. That way, if I have questions about fitment or need help with a return, I know I can get support.
Final Thoughts
When I shop for a 2007 Suzuki King Quad fuel pump regulator, I focus on fitment, fuel pressure, quality, and seller reliability. Taking the time to compare these details helps me avoid costly mistakes and keeps my ATV running the way it should.
Final Thoughts
I’ve found that the 2007 Suzuki King Quad fuel pump regulator is a small part that can make a big difference in how reliably the ATV runs. My key takeaway is to watch for symptoms like hard starting, poor idle, or fuel delivery issues, since these can point to a failing regulator. I believe using the correct replacement and checking the full fuel system can save time, money, and frustration.
Author Profile
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Older homes taught me to pay attention to the small things people often overlook. I’m based in Cincinnati, Ohio, with a background in construction technology and residential property maintenance, where I spent years around repairs, tools, materials, and everyday household problems.
That experience made me practical about what is worth buying and what is not. In 2026, I started Raulstuckpointing.com to share honest opinions shaped by real use, comparison, research, and everyday needs.
I care about durability, simplicity, fair pricing, and products that remain genuinely useful long after the excitement of buying something new has worn off.
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