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Used
GMC trucks
for sale
near
Mastic, NY
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2020 GMC Sierra 1500 Denali
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Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
Vehicle information
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Reviews
I recently had a wonderful experience at Mazda 112.
I recently had a wonderful experience at Mazda 112. My sales person Bonnie was amazing. Bonnie was extremely knowledgeable, friendly, professional and helpful. She answered all my questions, listened to what I needed and wanted, and put me in the perfect vehicle!
2022 GMC Sierra SLT 3.0 Duramax
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!
Used
2020 GMC Sierra 1500 Denali
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I visited on the second day being opened and had a great
I visited on the second day being opened and had a great experience in buying a 2022 Explorer and trading in a 2016. It was seamless. Had an issue with the new car that turned out to be a factory defect that they had Ford correct. All good. I’ll be back.
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!
Used
2019 GMC Sierra 1500 Denali
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Very very happy with the whole experience.
Very very happy with the whole experience. Everyone was very professional, quick courteous. Everything was taken care of in a timely fashion probably one of my best experiences ever at a car dealership recommend it highly.
2019 Sierra SLT X31
I purchased a new 2019 SLT with the X1 package. It has the Red Quartz Tintcoat paint. I usually never leave reviews, but honestly this is the most comfortable, nicest loking truck I've owned , and I've ownwd alot of them. The only issues I've had was the brake software was flawed, took it to the dealer on recall and they installed a new software patch, Other then that I love the styling, performance and the interior is very nice. No regrets
Used
2023 GMC Sierra 1500 Elevation
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Great service from Zach.
Great service from Zach. Very knowledgeable and thorough. Will definitely recommend him and Generation Buick GMC to my friends and family.
Awsome
Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!
Used
2015 GMC Sierra 1500 SLE
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Kevin was wonderfully helpful without being pushy.
Kevin was wonderfully helpful without being pushy. It was a positive experience. He offered everything over and above.
This truck is the base model and that is exactly what we
This truck is the base model and that is exactly what we were looking for. A good solid truck without all the fancy technology. It drives like a dream, handles just as well and the interior is sleek and well designed. Perfect black on black exterior.... a man's truck.
Used
2022 GMC Sierra 1500 Elevation
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Eder and ralphy great people helped m with the purchase
Eder and ralphy great people helped m with the purchase of the 2022 Honda hrv thank you guys !!
Pleased that I made this purchase
Waiting for the Refreshed 2022 AT4 was well worth it! With all the manufacturing issues today, building and shipping was slow, but understandable. Love the truck and the features! Fit is perfect and quality is #1. Pricing was too high but all vehicles are running this way. You get what you pay for and this truck is perfect! I have owned many trucks and this by far is the best. The latest features are beyond most other makes and GM has thought this truck through from front to rear.
Certified
2025 GMC Sierra 1500 Denali Ultimate
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Reviews
Great experience
I bought a ford certified pre owned truck. Carl Vail was my salesman and provided the best car buying experience I have ever had. He sold me the truck and completed the entire loan process. It was the first vehicle I bought that did not have a back room sales pitch for extras. Thank you
I bought this after going to the dealer just to look at
I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.
Used
2016 GMC Sierra 1500 SLE
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Reviews
Best used car purchase experience I have ever dealt with.
Best used car purchase experience I have ever dealt with. They were patient, helpful and did everything to make sure I was comfortable with my purchase! Highly recommend Dan and team
My 2016 GMC Sierra 1500 SLT All Terrain - Love it!
I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.
Used
2016 GMC Sierra 2500 Base
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Great experience with sales rep Gina This is the 2nd
Great experience with sales rep Gina This is the 2nd time I leased a car from her. Very pleasant experience. Best car dealership I have worked with.
a great Truck
I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!
GMC Certified
2022 GMC Canyon Elevation
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Received first rate service from my advisor, Lauren!
Received first rate service from my advisor, Lauren! Was able to make the appointment through the website without any issues, which made the experience even better.
Diesel AT4 it!
GMC Diesel Canyon AT4. I've had this truck for a year-11,000 miles. I love it. The Denali and Elevation trim looked like junk. The AT4 can't compete with the Tacoma off road but, It holds it's own off road. The Diesel pulls like a beast and the exhuast brake, on all the moutain passes I drive, is worth it's wieght in Gold. I trailer the max. capacity regularly and it's smooth sailing. I traded in my 2500HD Silverado with the vortec 6.0 for this big, little truck. Best decision I've made in a while. I had this truck on order for 8 months and Gm never accepted the order. I finally found exactly what I ordered, just off the truck that morning that I called. 1300 miles away, I jumped on a plane to go get it. Crying shame GMC discontinued the diesel. The extra $ per gallon right now is easily washed by the increase in mileage, 32+ higway, 19 trallering almost 8000 #'s. I wouldn't want the truck without it. Wouldn't want the Elevation or Denali. Diesel AT4 is the truck. I'll keep it the rest of my life barring accident. I'm sure I can get 40 years out of this truck doing 10-12k a year. The regeneration of the exhaust has never come up but, I only do a little round town driving. Most of my miles are highway and hauling a load. I've heard horror stories about regen. from city folk, commuters... You get what you aim for. If you've given it a lot of thought and the diesel AT4 seems right for you, you won't be disappointed. Good luck finding one. GM - You've a winner here. don't let it get away. Ps. Cars.com doesn't have a choice of how I use this truck for WORK. And wouldn't let me submit this review without selecting one of thier 3 inadequate choices. So, I selected having fun cause I believe everything should be but, this is my WORK TRUCK!
Used
2022 GMC Sierra 1500 Limited AT4
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I recommend Stevens 112 Ford. Look up Carmine.
Excellent experience buying a 2020 Ford Expedition Limited MAX SUV because my salesperson, Carmine Randello was honest and helpful rather than pushy. Carmine had a way of making me want the car without trying to make me want it.
This truck is great if your not trying to haul 10k lbs.
This truck is great if your not trying to haul 10k lbs. For every day use it's great on gas and I fit everything I need in the bed.
Used
2021 GMC Canyon Elevation
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Steven was very helpful!
Steven was very helpful! He took the time to explain everything and worked with us on getting exactly what we wanted!
I have loved and owned Chevy and GMC midsized trucks
I have loved and owned Chevy and GMC midsized trucks since 98 when I purchased a used S-10. My latest purchase is a 2021 GMC Canyon Denali bought brand new. It's been a great truck until my power steering unit went out due to corrosion. It only has 32,200 miles on it and I have never gotten it wet other than car washes and driving in the rain which is normal conditions. I had purchased a mid grade extended warranty through GMC after my lease was up and purchased the truck. I am being told this is NOT covered due to it being external wiring. So I feel this is a manufacturing malfunction and bad engineering for water to be able to get in to cause such corrosion so beware. This is an open case filed with GM currently to hopefully rectify the matter.
Used
2023 GMC Canyon AT4
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Eagle is a great dealership, service dept is well managed
Eagle is a great dealership, service dept is well managed and the staff is professional and honest.
Missing a few things that could really make it better.
Missing a few things that could really make it better. Homelink for garage door isn’t offered? Doesn’t come with a receiver type hitch however what does comes with it is almost the same amount of steel. The phone charger doesn’t work quite right and they know it.
Used
2025 GMC Sierra 2500 AT4
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So far so good!
So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.
Used
2021 GMC Sierra 1500 Elevation
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This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.
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They did the most possible deal and more for me.
They did the most possible deal and more for me. Kevin and manager are so nice and want the best for me. I love the delealership.
Great truck to own.
Great truck to own. The 2023 GMC Sierra Denali with the 6.2L engine delivers excellent power, smooth performance, and a refined driving experience. The ride quality, interior comfort, and overall build quality are outstanding. I have had no issues whatsoever, and it has been a reliable, enjoyable vehicle from day one. I would highly recommend it to anyone looking for a premium full-size truck.
Used
2025 GMC Sierra 1500 SLT
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Wow what a complete difference in professional service
Wow what a complete difference in professional service from Generation GMC in Sayville compared from King O'Rourke in Smithtown. Service department is amazing. They send you a video from the mechanic going over all the concerns that you have any what they found. I was constantly being told my oul leak was a seel. Thanks to Generation GMC they took the time to find the real cause and it's going to take a week to fix. Thank God had the issues at King O'Rourke otherwise I wouldn't have found an amazing dealership. Especially Thanks to Maria for keeping me updated.
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?
Used
2018 GMC Sierra 1500 Denali
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Rodrigo is great sales person i buy 3 cars from them good
Rodrigo is great sales person i buy 3 cars from them good dealer no hiding fees
2018 crew cab gmc Sierra 1500
Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.
Used
2013 GMC Sierra 2500 SLE
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The best deal 4me my dream truck it's mine if poss
I want this truck if I can't get help with finances I'll try againfri and ill have cash. I want it 100percent I've only dreamed of owning a truck like this and now if the Good Lord willing and the creek don't rise.a dream might come true.,!!!!!! I love everything about this ride.just rite for the open road.
About GMC
What is the cheapest GMC vehicle available?
The GMC Acadia Limited is the cheapest available vehicle by average Cars.com listing price in GMC's lineup, with an average listing price of $12,866.
Which GMC vehicle has the best MPG?
The GMC Sierra 1500 Hybrid can reach up to 21 MPG city and 22 MPG highway for a combined rating of 22 MPG. The GMC Terrain with traditional internal combustion engine offers up to 26 MPG city and 30 MPG highway for a combined rating of 28 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle model year, trim, driving conditions, driving habits, vehicle maintenance, and other factors.
Which GMC vehicle has the longest range?
The electric GMC Sierra EV can travel up to 440 miles on a single charge depending on electric motor and battery options.
EPA-estimated range is the distance, or predicted distance, a new plug-in vehicle will travel on electric power before its battery charge is exhausted. Actual range will vary depending on model year, driving conditions, driving habits, elevation changes, weather, accessory usage (lights, climate control), vehicle condition and other factors.
Which GMC vehicle has the most deals?
The GMC Sierra 1500 has the most available deals on Cars.com with 3151 great deals out of 17057 listings starting at $2,500.
Where can I find the most GMC deals?
The most GMC deals can be found near Coram, NY with 17 great deals out of 82 listings starting at $14,999.
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
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12 Great Deals out of 57 listings starting at $14,999
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14 Great Deals out of 67 listings starting at $14,999
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11 Great Deals out of 52 listings starting at $14,999
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7 Great Deals out of 40 listings starting at $17,500
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14 Great Deals out of 95 listings starting at $14,999
GMC Trucks in Mastic, NY by model
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GMC Sierra 1500 Trucks in Mastic, NY
6 Great Deals out of 31 listings starting at $14,999
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