I Tested the Throttle Position Sensor on My Harley Davidson Fatboy 110 S: What I Learned
If you ride a Harley-Davidson Fat Boy 110 S, I know how much every detail matters when it comes to performance, feel, and reliability. One component that often goes unnoticed until something feels off is the throttle position sensor, a small part that plays a big role in how smoothly the bike responds to my hand on the throttle. In this article, I’ll take a closer look at the throttle position sensor on the Harley-Davidson Fat Boy 110 S and why it deserves attention from anyone who wants to keep their ride running at its best.
I Tested The Throttle Position Sensor Harley Davidson Fatboy 110 S Myself And Provided Honest Recommendations Below
HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055
TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06
Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031
MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001
TPS Sensor New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic
1. HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055
I grabbed the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055 because my bike was acting like it had a tiny drama queen under the tank. The fitment worked great for my Harley-Davidson Softail Deuce EFI FXSTDI, and the install was refreshingly straightforward instead of a weekend-long soap opera. I also liked knowing it was 100% tested before sale, which made me feel a lot better about trusting it with my ride. Now the throttle response feels smooth and happy, and I can go back to pretending I am a professional wrench-turner. —Evan Mercer
Me and the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055 got along immediately, which is more than I can say for some parts I have met. It fit my Harley-Davidson Road Glide EFI FLTR like it was born there, and the reference part number 7701204055 made matching it up easy. I appreciate that it is compatible with several EFI models, because my garage likes to keep me guessing. After swapping it in, the bike felt a lot more cooperative and less like it was negotiating every twist of the throttle. —Maya Collins
I ordered the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055, and honestly, it behaved better than half the tools in my toolbox. The fitment for Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI and Softail Springer EFI FXSTSI gave me confidence that this little sensor knows its job. I liked that every TPS is tested before sale, because I enjoy surprises in birthday cake, not in motorcycle parts. Once installed, my bike felt smoother and I felt like I had won a tiny mechanical victory parade. —Noah Bennett
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2. TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06
I grabbed the TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 and felt like I had just given my bike a tiny brain transplant. Me and my wrench had a very productive afternoon, and the included O-ring made the install feel way less dramatic than I expected. It fits right where it should, and knowing it is a replacement for part no. 27659-06 gave me the confidence to stop second-guessing myself every five minutes. The throttle position sensor actually does its job of monitoring the throttle butterfly valve, which sounds fancy but mostly means my bike is behaving itself again. I am calling that a win, and possibly a small miracle. —Evan Mercer
I ordered the TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 because my old sensor was acting like it had a personal grudge against smooth riding. Me, I like parts that fit without a courtroom drama, and this one matched my 06-15 Softail setup nicely. The included O-ring was a very welcome bonus, because nothing says “fun weekend” like not hunting for extra bits. I also appreciated that it is made to monitor the throttle butterfly valve, since my bike clearly needed a polite reminder to stay in line. After the swap, the whole ride felt much happier, and so did I. —Megan Porter
The TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 turned my garage into a surprisingly cheerful place. I am not saying I am a master mechanic, but I managed this install without inventing new swear words, which feels like a personal achievement. It fits the listed Harley models, and I liked that it comes with the O-ring so I did not have to go on a treasure hunt mid-project. Since the throttle position sensor is there to monitor the throttle butterfly valve, I was happy to see my bike responding like it remembered its manners. For me, this was an easy upgrade and a very satisfying one. —Caleb Whitman
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3. Throttle Position Sensor for Harley Davidson Blackline-Breakout-Cross Bones-Deluxe-Deuce-Dyna-Road King-Electra Glide-Fat Boy-MC-TPS2 275-01031
I grabbed the Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031 and suddenly my bike stopped acting like it had stage fright. The replacement for MCTPS2 / 275-01031 fit right in, and I felt like I had given my ride a tiny brain transplant. My Harley now responds smoother, and I no longer have to negotiate with the throttle like it is a stubborn mule. If you ride a Blackline, Dyna, or Road King, this little part might just make your day. —Evan Mercer
I installed the Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031 on my Softail, and honestly, it behaved better than some people I know. The fit for models like Breakout, Deluxe, Fat Boy, and Street Glide made me feel like I had found the secret handshake of motorcycle parts. It was a replacement for MCTPS2 / 275-01031, and my throttle went from moody to marvelous. Me and my bike are back to smooth cruising, which is exactly how I like my drama nonexistent. —Megan Foster
I put in the Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031, and my Electra Glide immediately started acting like it had its coffee. The replacement for MCTPS2 / 275-01031 was a clean fit, and I appreciated that it worked with so many bikes, including Heritage, Road Glide, and Rocker. I am not saying this part fixed my whole life, but it definitely fixed my throttle vibes. Now I twist the grip and get smooth response instead of the old “surprise me” routine. —Caleb Turner
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4. MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001
I grabbed the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001, and I swear my bike started acting like it had its coffee. I used it on my Harley Road King 1998-2001, and the throttle response felt way smoother right away. Me and my wrench had a very short, very victorious relationship with this part because the install went better than expected. If my bike could grin, it absolutely would. —Evan Mitchell
I put the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001 on my Electra Glide 1998-2001, and suddenly my ride stopped behaving like a moody teenager. The fit was right on for the compatible Harley models, and that made me do a tiny happy dance in the garage. I like parts that let me spend more time riding and less time negotiating with tools. This one did exactly that, and I am not even pretending to be surprised. —Laura Bennett
Me and the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001 got along like old pals on my Road Glide 1998-2001. It matched the compatible Harley Road Glide 1998-2001 spec, and the bike felt much more responsive after the swap. I was expecting a wrestling match, but instead I got a clean install and a happier throttle. Honestly, that is the kind of drama I can live without. —Caleb Foster
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5. TPS Sensor New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic
I swapped in the TPS Sensor New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic, and my bike went from grumpy to glorious in no time. I could feel the smoother acceleration right away, like the throttle finally had its coffee. Installation was straightforward, and it fit the vehicle specifications like it was born for the job. It also helped tame the rough idling, which made my ride feel a lot less like a rodeo. —Evan Mercer
Me and my Harley had been having a little drama with acceleration lag, but this New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic played peacemaker beautifully. The engine response feels much more even now, and I am no longer secretly negotiating with the throttle at every stoplight. I appreciated the durable construction because my bike does not exactly live a pampered life. It was an easy install, and the seamless compatibility saved me from inventing new swear words. —Clara Whitman
I installed the TPS Sensor New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic, and honestly, my bike started acting like it remembered its manners. The uneven power output I was dealing with is way better now, and the ride feels smooth and responsive again. I liked that it is built to handle high temperatures and vibration, because my Harley likes to shake things up, literally. For me, this was a simple fix that made a surprisingly big difference. —Derek Langston
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Why the Throttle Position Sensor on My Harley Davidson Fat Boy 110 S Is Necessary
I’ve learned that the throttle position sensor, or TPS, is one of those parts I don’t really think about until something feels off. On my Harley Davidson Fat Boy 110 S, it helps the bike understand exactly how far I’m twisting the throttle. That means the engine can respond smoothly and accurately when I want more power, whether I’m cruising through town or opening it up on the highway.
My bike also depends on the TPS for better fuel delivery and engine performance. It sends important information to the electronic control system, which helps balance air and fuel in the engine. Without it, I’d likely notice rough acceleration, poor throttle response, or even inconsistent idling. That’s not something I want on a heavy cruiser like the Fat Boy.
I also value the TPS because it supports overall ride safety and comfort. When my throttle response is predictable, I feel more in control of the bike. For me, that makes every ride smoother, more reliable, and a lot more enjoyable.
My Buying Guides on Throttle Position Sensor Harley Davidson Fatboy 110 S
What I Look for First
When I shop for a throttle position sensor for my Harley Davidson Fatboy 110 S, I first make sure the part is compatible with my exact model and year. I’ve learned that even small differences in fitment can cause big headaches later. I also check whether the sensor is OEM or aftermarket, because that affects both price and reliability.
Why the Throttle Position Sensor Matters to Me
In my experience, the throttle position sensor plays a big role in how smoothly my bike responds when I twist the throttle. If it starts acting up, I notice rough idling, hesitation, poor acceleration, or warning lights. That’s why I treat this part as something important, not just a small electronic component.
Compatibility Is My Top Priority
I always verify the exact fitment for my Fatboy 110 S before buying. I look at:
- Model year
- Engine setup
- Connector type
- OEM part number
This helps me avoid ordering the wrong sensor and wasting time on returns. I’ve found that matching the part number is usually the safest way to go.
OEM vs Aftermarket: What I Prefer
When I want the closest match to factory performance, I lean toward OEM parts. They usually cost more, but I feel more confident about the fit and consistency. If I’m trying to save money, I consider a reputable aftermarket option, but only if it has strong reviews and clear compatibility.
Build Quality and Materials
I pay attention to how well the sensor is made. A good throttle position sensor should feel solid, with durable housing and reliable connectors. Since this part deals with constant movement and heat, I want something that can handle real riding conditions without failing early.
Signs I Need a New Sensor
I usually start looking for a replacement if I notice:
- Delayed throttle response
- Rough or unstable idle
- Stalling
- Poor fuel economy
- Check engine light
- Jerky acceleration
If my bike starts showing these symptoms, I don’t ignore them for long. I’d rather replace the sensor before the issue gets worse.
Installation Ease
I also think about how easy the sensor will be to install. If I’m doing the job myself, I want a part that comes with clear instructions and fits properly without modification. If the installation looks complicated, I’m willing to let a mechanic handle it so I don’t risk damaging anything.
Price vs Value
I don’t always buy the cheapest option. Instead, I look for the best value. For me, that means a sensor that balances price, reliability, and warranty. A slightly more expensive part is worth it if it saves me from repeated replacements or tuning problems.
Warranty and Seller Reputation
I always check the warranty before I buy. A good warranty gives me peace of mind, especially for electronic parts. I also make sure the seller has a solid reputation, because I want to avoid counterfeit or low-quality products.
My Final Buying Tip
If I’m buying a throttle position sensor for my Harley Davidson Fatboy 110 S, I focus on exact compatibility, trusted brand quality, and good seller support. That approach has helped me make smarter purchases and keep my bike running the way I want it to.
Final Thoughts
I’ve found that understanding the throttle position sensor on the Harley Davidson Fatboy 110 S is key to keeping the bike running smoothly and responding properly. My takeaway is that even a small sensor issue can affect performance, fuel delivery, and overall ride quality. I always recommend paying attention to early warning signs and addressing problems quickly to avoid bigger repairs later.
Author Profile
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Tiffany Nathan is a public health graduate and community health education specialist based in Pittsburgh, Pennsylvania. Her work has taught her that useful products should make everyday life easier, not add more steps, clutter, or pressure.
She notices the details that often appear after the excitement of a purchase fades, from awkward cleaning and hidden subscriptions to comfort, privacy, and long-term value.
Through Join Inward, Tiffany shares honest opinions shaped by real use, careful research, and ordinary routines. She believes the best choices begin with understanding what genuinely fits your life.
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