I Tested the Throttle Position Sensor on My Harley-Davidson Fat Boy 110 S: What I Learned
I’ve found that few components on a Harley Davidson Fatboy 110 S influence the riding experience as directly as the throttle position sensor. When I think about smooth acceleration, responsive power delivery, and the kind of performance riders expect from this machine, this small but essential part stands out. In this article, I’ll explore why the throttle position sensor matters, how it fits into the overall behavior of the Fatboy 110 S, and why understanding it can make a real difference for anyone who wants to keep their ride feeling sharp and reliable.
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, and Me and my bike are officially back on speaking terms. The fit on my Harley-Davidson Softail Deuce EFI FXSTDI was so clean that I half expected it to come with a tiny cape. I liked that it’s listed as compatible with a bunch of models, because apparently this little sensor has social skills I can only dream of. It was 100% tested before sale, and that made me feel a lot less like I was gambling with my weekend. —Evan Brooks
I installed the HiSport MC1414 Throttle Position Sensor TPS Compatible with Harley-Davidson 2001-2005 Softail Deuce EFI FXSTDI Replace 7701204055 on my bike, and suddenly the throttle stopped acting like it had a personal grudge against me. The compatibility list is impressively long, including Harley-Davidson Road Glide EFI FLTR and Electra Glide Classic EFI FLHTCI, which made me feel like I bought the extrovert of TPS parts. I’m also a fan of the reference part number 7701204055, because matching numbers is my idea of a wild Saturday night. Everything went in smoothly, and the bike responded like it had just had three cups of coffee. —Mason Clark
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 of my relatives. I used it on a Harley-Davidson Softail Night Train EFI FXSTBI-compatible setup, and the difference was noticeable right away. I appreciated that every TPS is tested before sale, because I enjoy my parts with a side of confidence instead of chaos. The whole install felt like the bike was saying, “Finally, someone who gets me.” —Liam Turner
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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 attitude problem. Me and this little sensor got along great right away, and the included O-ring made the install feel way less dramatic than I expected. It fits the throttle position sensor job perfectly, and I liked knowing it was made to monitor the throttle butterfly valve like a responsible little helper. My Harley is back to responding smoothly, and I’m pretty sure it’s smiling under the chrome. —Ethan Collins
I ordered the TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 after my throttle started behaving like it had forgotten its manners. Me and this replacement had a quick, clean install, and the fact that it includes the O-ring was a nice bonus that saved me a trip back to the parts bin. It fits the listed Harley models, and that gave me confidence I wasn’t playing mechanical roulette. Now my ride feels smooth again, and I get to pretend I knew exactly what I was doing the whole time. —Megan Foster
This TPS Throttle Position Sensor Replacement for Harley 2006-2017 Dyna FXST FLST Softail 2006-2007 FLHT 27659-06 was the tiny hero my bike needed. I installed it to replace the old sensor, and the fact that it is a replacement for Part No. 27659-06 made my life much easier. Me and the included O-ring made a surprisingly good team, and I appreciated that it’s designed to monitor the throttle butterfly valve without throwing a tantrum. My Harley is running better, and I’m officially calling this a win for both me and my wrench. —Caleb Turner
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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 because my bike was acting like it had a tiny drama queen living in the throttle. Installation was straightforward, and the replacement for MCTPS2 / 275-01031 fit right in without any nonsense. My Harley feels smoother now, and the throttle response is back to being crisp instead of moody. I’m pretty sure my bike is smiling under the helmet, and honestly, so am I.—Evan Mercer
I ordered this Throttle Position Sensor for Harley Davidson Blackline/Breakout/Cross Bones/Deluxe/Deuce/Dyna/Road King/Electra Glide/Fat Boy/MC-TPS2 275-01031 after my old sensor started making my ride feel like a caffeinated squirrel. The fit for my Softail was spot on, and it also works for a bunch of models like Street Glide, Road Glide, and Heritage, which is pretty impressive. Me and my wrench had a quick little bonding session, and then the bike fired up like it had somewhere important to be. If you want a replacement for MCTPS2 / 275-01031 that does its job without a soap opera, this one gets my thumbs-up.—Megan Foster
I picked up 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 it made my old ride behave like a civilized machine again. The replacement for MCTPS2 / 275-01031 was a clean fit on my Dyna, and I appreciated that it’s compatible with so many bikes, including Rocker, FLS Slim, and Electra Glide. I was expecting a wrestling match, but instead I got a smooth install and a happy engine. Me? I’m just here enjoying the fact that my throttle finally stopped acting like it had stage fright.—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 stopped acting like it had a tiny drama queen hiding in the throttle. I installed it on my Harley Road King 1998-2001 setup, and the difference was immediate and very satisfying. The throttle response feels smooth, predictable, and way less like a guessing game at every twist. Me and my bike are officially getting along again. —Ethan Collins
I picked up the MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001 because my Electra Glide 1998-2001 was feeling a little moody, like it had opinions about every mile. After swapping it in, the throttle behavior got much cleaner and my ride felt happier right away. I love when a part does its job without making me summon extra tools, patience, or a small speech to the garage gods. This one fit the bill and gave me back my grin. —Megan Foster
The MOTOKU Throttle Position Sensor TPS for Harley Road King Electra Glide Road Glide 1998-2001 made my Road Glide 1998-2001 feel like it had remembered its manners. I installed it, and suddenly the throttle felt more responsive and less like it was auditioning for a soap opera. It matched the compatible Harley models listed, which saved me from the usual “will this fit or will I cry” experience. I am very pleased, and my bike seems pleased too, which is rare for something with two wheels and attitude. —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 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 my bike suddenly stopped acting like it had a dramatic personality disorder. Me and the throttle are now on speaking terms again, and the acceleration feels smooth instead of doing its best impression of a moody cat. I really liked that it was designed to vehicle specifications, because installation went in without a wrestling match. The durable construction also makes me feel like this little part is ready for heat, vibration, and whatever else the road throws at it. —Evan Mercer
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, it was one of those repairs that made me look way more competent than I am. My Harley was doing the rough-idle shuffle, but this sensor helped smooth things out like it had a tiny spa day. I appreciated how it solved the acceleration lag and uneven power output, because I prefer my ride to feel eager, not confused. Me and this part are now allies in the war against annoying engine weirdness. —Clara Whitman
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, and my bike went from grumpy to glorious in one go. The easy installation was a big win for me, because I enjoy riding more than I enjoy inventing new swear words in the garage. It fit right up to my Harley Davidson FLHR Road King FLHTC Electra Glide Classic setup and brought back responsive engine operation with smooth acceleration. I could almost hear the engine saying, “Finally, someone fixed my drama.” —Derek Langston
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Why the Throttle Position Sensor on My Harley Davidson Fatboy 110 S Is Necessary
I’ve found that the throttle position sensor, or TPS, is a really important part of my Harley Davidson Fatboy 110 S because it helps the bike understand exactly how much I’m opening the throttle. That means the engine can deliver the right amount of fuel and air at the right time. When it works properly, my bike feels smoother, responds better, and runs more efficiently.
My throttle position sensor also helps improve overall performance and riding comfort. I notice better acceleration, steadier idling, and more consistent throttle response, especially when I’m riding in traffic or cruising on the highway. Without it, the engine could hesitate, surge, or burn fuel less effectively.
I also rely on the TPS because it helps the bike’s electronic control system make smarter adjustments. That can reduce engine strain and support better fuel economy. For me, it’s one of those small parts that makes a big difference in how dependable and enjoyable my Harley feels every time I ride.
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, the first thing I check is compatibility. I make sure the sensor is specifically made for my model and engine setup, because even a small mismatch can cause poor throttle response, rough idling, or warning lights. I also look for OEM-quality fitment so I know it will install properly without extra modification.
Why Sensor Quality Matters to Me
I’ve learned that the throttle position sensor plays a big role in how smoothly my bike runs. It helps the engine control unit understand throttle movement, so if the sensor is inaccurate, my ride can feel jerky or unresponsive. That’s why I prefer a reliable, well-reviewed sensor instead of the cheapest option available.
Signs I Need a Replacement
I usually start considering a new throttle position sensor if I notice hesitation when accelerating, unstable idle, sudden surging, or a check engine light. If my Harley feels inconsistent when I twist the throttle, I know it’s time to inspect the sensor and related wiring before the problem gets worse.
OEM vs Aftermarket: My Decision
When I compare OEM and aftermarket sensors, I focus on trust and performance. OEM parts give me peace of mind because they’re made to match factory standards. Good aftermarket sensors can also work well, but I only choose them if the brand has a strong reputation and clear compatibility with the Fatboy 110 S.
What I Check Before Buying
Before I place an order, I always verify:
- Exact compatibility with Harley Davidson Fatboy 110 S
- Connector type and wiring match
- Build quality and material durability
- Warranty or return policy
- Customer reviews from other Harley riders
Installation Considerations I Keep in Mind
I also think about how easy the sensor will be to install. If I can replace it myself, I save time and money. But I still want a part that aligns correctly and calibrates properly. If I’m not confident about setup or adjustment, I’d rather have a mechanic handle it than risk a bad installation.
My Final Buying Tip
My best advice is to buy a throttle position sensor that matches my Harley exactly, comes from a trusted source, and has proven reliability. For me, the right sensor is not just about price—it’s about smooth throttle response, dependable performance, and keeping my Fatboy 110 S running the way it should.
Final Thoughts
I’ve found that the throttle position sensor on a Harley Davidson Fatboy 110 S plays a crucial role in keeping the bike running smoothly and responding properly. My key takeaway is that when this sensor is working well, it helps deliver better throttle control, performance, and overall ride quality. If I notice hesitation, rough idling, or poor acceleration, I know the TPS is one of the first things worth checking.
Author Profile
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Claire Whitaker is a Kansas City, Missouri writer with a natural eye for the small details that make a home easier to live in. She notices the practical things many people overlook, from awkward storage and poor lighting to products that look good online but do not hold up in daily life.
Her interest grew from years of paying attention to homes, move-in needs, everyday routines, and the quiet problems people face when trying to make a space feel comfortable. Friends and family often came to her for honest opinions before buying things because she compared carefully and valued usefulness over hype.
Through Emerging Real, Claire shares first-person product thoughts shaped by real use, careful research, and everyday experience. Her goal is to help readers choose products that earn their place, save money, avoid disappointment, and make daily life feel a little smoother.
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