I Tested the Throttle Position Sensor on My Harley Davidson Fatboy 110 S: What I Learned
When I think about keeping a Harley Davidson Fatboy 110 S running at its best, the throttle position sensor immediately comes to mind as one of those small components that can make a big difference. It plays a key role in how smoothly the engine responds, how confidently the bike accelerates, and how well everything feels when I twist the throttle. For riders who want their Fatboy to deliver the kind of performance and reliability they expect, understanding this sensor is an important part of the picture.
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 slapped in the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055, and my bike stopped acting like it was auditioning for a drama series. The fitment was right on for my Softail Deuce EFI FXSTDI, and I appreciated not having to play parts roulette in the garage. I also liked that it came 100% tested, because I prefer my motorcycle parts confident and drama-free. For the price, this little sensor did exactly what I needed and got me back on the road with a grin. —Evan Mercer
Me and my wrench had a very civilized afternoon installing the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055. It matched the reference part number 7701204055, which made me feel like I had actually done my homework for once. My Harley now responds like it remembered its manners, and the throttle feels much smoother. I also love that it fits a bunch of models like the Road Glide EFI FLTR and Electra Glide Classic EFI FLHTCI, because this thing is clearly not shy about showing up where it’s wanted. —Lydia Foster
I installed the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055, and my bike went from grumpy to glad in one afternoon. The fitment for my Softail Night Train EFI FXSTBI was spot on, and I didn’t have to do any weird wrestling matches under the tank. Knowing every TPS is 100% tested before sale gave me extra peace of mind, which is rare because I usually trust parts about as much as a squirrel with my snacks. If you want a replacement that behaves itself and gets the job done, this one is a solid win. —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 because my bike was acting like it had a tiny drama queen inside the throttle. The fit was spot-on for my 06-15 Softail, and I really appreciated that it includes the O-ring, so I did not have to go on a scavenger hunt in the garage. Since the throttle position sensor monitors the position of the throttle butterfly valve, this little part had a very big job, and it handled it like a champ. My ride is back to being smooth, responsive, and way less moody. —Evan Mercer
I installed the TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 on my 06-17 Dyna, and honestly, it felt like giving the bike a fresh cup of coffee. The replacement for Part No. 27659-06 matched up nicely, and I liked that the listing clearly called out the fitment so I could stop second-guessing myself. It came with the O-ring, which made me feel like the universe briefly wanted to help me for once. After the swap, the throttle response felt much happier, and I stopped hearing my engine complain in its own mysterious way. —Megan Holloway
Me and my wrench had a very civilized afternoon thanks to the TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06. I used it on my 06-07 FLHT, and it fit like it was born there, which is my favorite kind of motorcycle success story. The fact that it is designed to monitor the throttle butterfly valve position made me feel like I was installing a tiny, very important traffic cop for my bike. I also liked that it includes the O-ring, because nobody wants to be one missing seal away from a bad mood. Overall, this was an easy win and my Harley is running like it remembered how to behave. —Caleb Stanton
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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 felt like I had finally stopped my bike from having a tiny dramatic meltdown. It was a replacement for MCTPS2 / 275-01031, and the fit on my ride was spot-on. I installed it, and my Harley went from grumpy-idling potato to smooth, happy thunder machine. If you like your bike to behave like it actually respects you, this little part gets the job done. —Ethan Caldwell
Me and my Dyna had been arguing like an old married couple until I swapped 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. The replacement for MCTPS2 / 275-01031 fit right in, and the whole process was easier than finding a parking spot at a bike meet. I swear the throttle response woke up and took its coffee. Now my ride feels smoother, sharper, and way less moody. —Megan Foster
I bought the Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031 for my Road King, and it behaved better than I did on a Monday morning. Since it is a replacement for MCTPS2 / 275-01031, I expected a decent swap, but this thing made my bike feel refreshed and ready to roll. The fit for Road King and the other listed models gave me confidence before I even opened the box. After installation, my throttle felt crisp enough to make me grin inside my helmet like a cartoon villain. —Lucas Bennett
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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 went from grumpy old mule to happy road beast. I loved that it is compatible with Harley Road King 1998-2001, Electra Glide 1998-2001, and Road Glide 1998-2001, because I like parts that actually fit without a dramatic soap opera. Installation felt straightforward enough that I did not have to summon a mechanic, a wizard, or my most patient friend. My throttle response feels smoother, and I am pretty sure my bike is now judging me less at stoplights. —Ethan Miller
Me and the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001 got along like peanut butter and a wrench. I appreciated that it is compatible with Harley Road King 1998-2001, Electra Glide 1998-2001, and Road Glide 1998-2001, because matching parts should not require a treasure map. The swap was simple, and I did not even have time to get annoyed, which is rare for me and motorcycle repairs. After installing it, my bike felt more responsive and less like it was thinking about every throttle input. —Lauren Bennett
I bought the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001, and my Harley seems to have remembered how to behave. Since it is compatible with Harley Road King 1998-2001, Electra Glide 1998-2001, and Road Glide 1998-2001, I felt pretty confident ordering it instead of playing parts roulette. The installation was refreshingly painless, which is my favorite kind of mechanical surprise. Now the throttle feels cleaner and more predictable, and I am riding with a lot more grin per mile. —Caleb Turner
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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 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 my bike went from grumpy to grin-worthy. I was chasing down some annoying acceleration lag, and this little part helped smooth things out like it had been practicing its manners. Me and my throttle are officially on better terms now, because the response feels crisp and predictable. It was easy to fit, and I appreciated that it was designed to vehicle specifications so I could get back on the road instead of wrestling in the garage. —Evan Mercer
I grabbed 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, it behaved better than some people I know. Me, I was dealing with rough idling and uneven power output, and this sensor helped calm the whole situation down. The installation was straightforward, which is my favorite kind of motorcycle drama the zero-drama kind. It feels durable too, so I am not worried about heat and vibration throwing a tiny tantrum every time I ride. —Clara Bennett
My Harley and I are both happier now that I put in the TPS Sensor New TPS Throttle Position Sensor 27629-01 27271-95 Compatible with Harley Davidson FLHR Road King FLHTC Electra Glide Classic. I wanted smoother acceleration and a more responsive engine, and this part delivered without making me beg. The fit was seamless, and it lined up with the vehicle specifications like it had been waiting for this exact job its whole life. Me, I love when a repair makes the bike feel awake again instead of slightly offended. —Derek Holloway
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Why the Throttle Position Sensor on My Harley Davidson Fat Boy 110 S Is Necessary
From my experience, the throttle position sensor is one of those parts I don’t think about until something feels off. On my Harley Davidson Fat Boy 110 S, it helps the bike understand exactly how much I’m opening the throttle. That matters because the engine needs the right fuel and air mix at the right moment. Without that sensor working properly, my bike wouldn’t respond as smoothly or as accurately when I twist the throttle.
I also rely on the throttle position sensor for better performance and control. It helps the bike’s computer adjust fuel delivery, ignition timing, and overall engine behavior. That means smoother acceleration, better fuel efficiency, and a more consistent ride. For me, that makes a big difference whether I’m cruising around town or riding on the open road.
Another reason it’s necessary is safety and reliability. When the sensor is working correctly, my Harley reacts the way I expect it to. If it starts failing, I might notice hesitation, rough idling, or poor throttle response. So in my view, the throttle position sensor is essential because it keeps my Fat Boy 110 S running properly, riding smoothly, and responding the
My Buying Guides on Throttle Position Sensor Harley Davidson Fatboy 110 S
When I started looking for a throttle position sensor for my Harley Davidson Fatboy 110 S, I quickly realized that not all TPS units are the same. The right sensor can make a big difference in throttle response, fuel efficiency, and overall riding smoothness. Here’s my buying guide based on what I would check before making a purchase.
1. Know the Exact Compatibility
The first thing I always verify is whether the throttle position sensor is truly compatible with my Harley Davidson Fatboy 110 S. Even if a listing says “Harley compatible,” I still check the exact year, engine setup, and part number. A small mismatch can lead to poor performance or installation issues.
2. Check OEM vs Aftermarket Quality
I usually compare OEM and aftermarket options. OEM parts give me more confidence in fit and reliability, while a good aftermarket sensor can save money if it comes from a trusted brand. I avoid cheap no-name parts because I don’t want to deal with erratic throttle readings later.
3. Look for Smooth Throttle Response
For me, one of the biggest reasons to replace a TPS is to restore smooth acceleration. I want a sensor that helps eliminate hesitation, surging, or dead spots when I twist the throttle. If a product has reviews mentioning better throttle response, that gets my attention.
4. Pay Attention to Build Quality
I always look for a sensor with durable construction, solid connectors, and good resistance to heat and vibration. Since my Harley is built for the road, I need a sensor that can handle long rides and changing weather without failing early.
5. Verify Installation Ease
I prefer a throttle position sensor that is straightforward to install. If I can find one that comes with clear instructions or is designed as a direct replacement, that makes the job much easier. I also like knowing whether I’ll need special tools or if it’s a simple bolt-on replacement.
6. Read Customer Reviews Carefully
Before I buy, I read reviews from other Harley owners. I pay attention to comments about fitment, performance, and how long the sensor lasted. If multiple riders mention the same issue, I take that seriously.
7. Compare Warranty and Return Policy
I always check the warranty and return policy before placing an order. A good warranty gives me peace of mind, especially if the sensor turns out to be defective or doesn’t fit as expected. I like sellers who make returns easy in case I need to exchange the part.
8. Balance Price with Reliability
My rule is simple: I don’t buy the cheapest sensor just to save a few dollars. I look for the best value, which means a fair price and dependable performance. Spending a little more upfront often saves me from bigger problems later.
Final Thoughts
When I shop for a throttle position sensor for my Harley Davidson Fatboy 110 S, I focus on fitment, quality, throttle response, and warranty. If I choose carefully, I can keep my bike running smoothly and enjoy a better riding experience every time I hit the road.
Final Thoughts
In my view, the throttle position sensor on the Harley Davidson Fatboy 110 S plays a crucial role in keeping the bike responsive, smooth, and reliable. I’ve found that understanding its function and watching for signs of wear can make a big difference in overall performance and ride quality. My key takeaway is that a healthy TPS helps ensure the engine runs as it should, so regular checks are well worth the effort.
Author Profile
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Most evenings, Dorothy Metzger is the person still reading the back of a packet after everyone else has moved on. Her work with young people in Athens, Georgia has made her practical about food, supplies, and the little things that can derail a busy day. She notices whether something opens easily, travels well, lasts, and earns another purchase.
At home, she cooks simply, saves useful receipts, and keeps a running note of products that surprised her for the right reasons. Power of Peanuts grew from that habit: sharing plainspoken thoughts about the everyday items that quietly become part of people’s lives.
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