--- title: "ac belt tensioner — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/ac-belt-tensioner" last_updated: "2026-07-10T02:50:45.699Z" locale: en meta: description: "a small market ($44K/yr) — ac belt tensioner doesn't clear our bar today." "og:description": "a small market ($44K/yr) — ac belt tensioner doesn't clear our bar today." "og:title": "ac belt tensioner — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen" --- Back to Flapen home # **ac belt tensioner** **Skip it****37/100 ** a small market ($44K/yr) — ac belt tensioner doesn't clear our bar today. **Market/yr** **$44K** **Growth (1y)** **+210.3%** **Products** **11** **Brands** **9** was 19 a year ago **Sellers** **29** **Price range** **$14.84–$60.37** **Returns** **3.6%** **Rating** **4.6★** **Skip it** Scored 37/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **2** ×0.30 Growth **78** ×0.30 Competition **13** ×0.20 Quality gap **30** ×0.10 Returns **71** ×0.10 ## **Demand** Weekly Amazon search volume, last 50 weeks — +210.3% year over year. 739369.5Spike '26Jul '25Sep '25Nov '25Jan '26Mar '26May '26 ## **Competition** - ACDelco34% - Dasbecan22% - ATPSTOGO17% - YzusGomumu10% - loosoo5% - GM GENUINE PARTS4% - Other (3 brands)8% The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack. 9 brands and 29 sellers compete here. **Brands** **9 **▼falling was 19 a year ago **Sellers** **29** **Top 5 brand share** **88%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![ACDelco Gold 38159 Drive Belt Tensioner Assembly with Pulley](https://m.media-amazon.com/images/I/41qRwzObAXL.jpg) [**ACDelco Gold 38159 Drive Belt Tensioner Assembly with Pulley**](https://www.amazon.com/dp/B000C9POFK) ACDelco$23.454.7★1,70228%▼falling 2 ![Dasbecan 90K-38159 A/C Belt Tensioner Kit Compatible with Chevy Tahoe 2000-2008 Gmc Yukon 2000-2008 Cadillac Escalade 2002-2008 Chevy Avalanche 2002-2008 Replaces# 38159 ACK040378HD](https://m.media-amazon.com/images/I/418K66WA82L.jpg) [**Dasbecan 90K-38159 A/C Belt Tensioner Kit Compatible with Chevy Tahoe 2000-2008 Gmc Yukon 2000-2008 Cadillac Escalade 2002-2008 Chevy Avalanche 2002-2008 Replaces# 38159 ACK040378HD**](https://www.amazon.com/dp/B0C9M73WJD) Dasbecan$24.414.6★65922%▼falling 3 ![ATPSTOGO A/C Drive Belt Tensioner Kit Fits for Chevy Silverado 1500 Avalanche Express Suburban Tahoe GMC Savana Sierra Yukon Cadillac Escalade 1999-2008 P/N: 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/41KeTHhCRmL.jpg) [**ATPSTOGO A/C Drive Belt Tensioner Kit Fits for Chevy Silverado 1500 Avalanche Express Suburban Tahoe GMC Savana Sierra Yukon Cadillac Escalade 1999-2008 P/N: 19311139 38159 ACK040378HD**](https://www.amazon.com/dp/B0DCBNTSSG) ATPSTOGO$23.724.6★15315%▲rising 4 ![YzusGomumu Car A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with 1999-2008 Cadillac Escalade Chevrolet Avalanche Silverado Express GMC Sierra H2 Replaces 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/41Gcsfv3ZqL.jpg) [**YzusGomumu Car A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with 1999-2008 Cadillac Escalade Chevrolet Avalanche Silverado Express GMC Sierra H2 Replaces 19311139 38159 ACK040378HD**](https://www.amazon.com/dp/B0CDX16DT7) YzusGomumu$19.164.3★33610%▲rising 5 ![ACDelco Gold ACK040378HD (19311139) Serpentine Drive Belt Tensioner Kit](https://m.media-amazon.com/images/I/216WCvv-N6L.jpg) [**ACDelco Gold ACK040378HD (19311139) Serpentine Drive Belt Tensioner Kit**](https://www.amazon.com/dp/B010GK6D9K) ACDelco$60.374.7★9916%▲rising 6 ![loosoo A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with Cadillac Escalade 2002-2008 Chevrolet Avalanche 2002-2008 Express 2003-2008 Replace ACK040378HD](https://m.media-amazon.com/images/I/414EnAW1zfL.jpg) [**loosoo A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with Cadillac Escalade 2002-2008 Chevrolet Avalanche 2002-2008 Express 2003-2008 Replace ACK040378HD**](https://www.amazon.com/dp/B0BZNKCCNT) loosoo$19.034.3★1565%▼falling 7 ![GM Genuine Parts 12580196 Air Conditioning Drive Belt Tensioner](https://m.media-amazon.com/images/I/31sV7fFlx0L.jpg) [**GM Genuine Parts 12580196 Air Conditioning Drive Belt Tensioner**](https://www.amazon.com/dp/B00HFLC3HA) GM GENUINE PARTS$45.024.7★4364%▲rising 8 ![90K-38159 A/C Drive Belt Tensioner Kit Fit for Chevy Tahoe (2000-2008) GMC Yukon (2000-2008) Cadillac Escalade (2002-2008) Chevy Avalanche (2002-2008) Replaces 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/416qH5WguWL.jpg) [**90K-38159 A/C Drive Belt Tensioner Kit Fit for Chevy Tahoe (2000-2008) GMC Yukon (2000-2008) Cadillac Escalade (2002-2008) Chevy Avalanche (2002-2008) Replaces 19311139 38159 ACK040378HD**](https://www.amazon.com/dp/B0FDQNMHWY) C-Tzu$19.114.8★93%▲rising 9 ![A-Premium A/C Drive Belt Tensioner Assembly w/Pulley Compatible with Chevrolet Silverado Tahoe Suburban 1500/2500 Express Avalanche & GMC Sierra Savana & Cadillac Escalade & Buick & Saab & Hummer](https://m.media-amazon.com/images/I/41a8VW9hbpL.jpg) [**A-Premium A/C Drive Belt Tensioner Assembly w/Pulley Compatible with Chevrolet Silverado Tahoe Suburban 1500/2500 Express Avalanche & GMC Sierra Savana & Cadillac Escalade & Buick & Saab & Hummer**](https://www.amazon.com/dp/B08LPZ6B82) A-Premium$14.844.0★3833%▲rising 10 ![ATPSTOGO 90K-38159 A/C Belt Tensioner Pulley Compatible with Chevy Suburban Tahoe Chevrolet Avalanche Silverado GMC Yukon Sierra Cadillac Escalade 1999-2008 PN:38159 ACK040378HD](https://m.media-amazon.com/images/I/41P4JmtWE5L.jpg) [**ATPSTOGO 90K-38159 A/C Belt Tensioner Pulley Compatible with Chevy Suburban Tahoe Chevrolet Avalanche Silverado GMC Yukon Sierra Cadillac Escalade 1999-2008 PN:38159 ACK040378HD**](https://www.amazon.com/dp/B0FHH5PDFK) ATPSTOGO$16.995.0★152%▲rising 11 ![Dorman 419-654 Accessory Drive Belt Tensioner Pulley Compatible with Select Hyundai/Kia Models](https://m.media-amazon.com/images/I/41e2FfPeXqL.jpg) [**Dorman 419-654 Accessory Drive Belt Tensioner Pulley Compatible with Select Hyundai/Kia Models**](https://www.amazon.com/dp/B07QNLPDHD) Dorman$22.884.9★252%—flat ## **Product shelf** All 11 tracked products in this niche. Top sellersNewestTrending [![ACDelco Gold 38159 Drive Belt Tensioner Assembly with Pulley](https://m.media-amazon.com/images/I/41qRwzObAXL.jpg)**ACDelco Gold 38159 Drive Belt Tensioner Assembly with Pulley** ACDelco**$23.45**4.7★1,702 reviews](https://www.amazon.com/dp/B000C9POFK) [![Dasbecan 90K-38159 A/C Belt Tensioner Kit Compatible with Chevy Tahoe 2000-2008 Gmc Yukon 2000-2008 Cadillac Escalade 2002-2008 Chevy Avalanche 2002-2008 Replaces# 38159 ACK040378HD](https://m.media-amazon.com/images/I/418K66WA82L.jpg)**Dasbecan 90K-38159 A/C Belt Tensioner Kit Compatible with Chevy Tahoe 2000-2008 Gmc Yukon 2000-2008 Cadillac Escalade 2002-2008 Chevy Avalanche 2002-2008 Replaces# 38159 ACK040378HD** Dasbecan**$24.41**4.6★659 reviews](https://www.amazon.com/dp/B0C9M73WJD) [![ATPSTOGO A/C Drive Belt Tensioner Kit Fits for Chevy Silverado 1500 Avalanche Express Suburban Tahoe GMC Savana Sierra Yukon Cadillac Escalade 1999-2008 P/N: 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/41KeTHhCRmL.jpg)**ATPSTOGO A/C Drive Belt Tensioner Kit Fits for Chevy Silverado 1500 Avalanche Express Suburban Tahoe GMC Savana Sierra Yukon Cadillac Escalade 1999-2008 P/N: 19311139 38159 ACK040378HD** ATPSTOGO**$23.72**4.6★153 reviews](https://www.amazon.com/dp/B0DCBNTSSG) [![YzusGomumu Car A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with 1999-2008 Cadillac Escalade Chevrolet Avalanche Silverado Express GMC Sierra H2 Replaces 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/41Gcsfv3ZqL.jpg)**YzusGomumu Car A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with 1999-2008 Cadillac Escalade Chevrolet Avalanche Silverado Express GMC Sierra H2 Replaces 19311139 38159 ACK040378HD** YzusGomumu**$19.16**4.3★336 reviews](https://www.amazon.com/dp/B0CDX16DT7) [![ACDelco Gold ACK040378HD (19311139) Serpentine Drive Belt Tensioner Kit](https://m.media-amazon.com/images/I/216WCvv-N6L.jpg)**ACDelco Gold ACK040378HD (19311139) Serpentine Drive Belt Tensioner Kit** ACDelco**$60.37**4.7★991 reviews](https://www.amazon.com/dp/B010GK6D9K) [![loosoo A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with Cadillac Escalade 2002-2008 Chevrolet Avalanche 2002-2008 Express 2003-2008 Replace ACK040378HD](https://m.media-amazon.com/images/I/414EnAW1zfL.jpg)**loosoo A/C Serpentine Drive Belt Tensioner Kit 90K-38159 Compatible with Cadillac Escalade 2002-2008 Chevrolet Avalanche 2002-2008 Express 2003-2008 Replace ACK040378HD** loosoo**$19.03**4.3★156 reviews](https://www.amazon.com/dp/B0BZNKCCNT) [![GM Genuine Parts 12580196 Air Conditioning Drive Belt Tensioner](https://m.media-amazon.com/images/I/31sV7fFlx0L.jpg)**GM Genuine Parts 12580196 Air Conditioning Drive Belt Tensioner** GM GENUINE PARTS**$45.02**4.7★436 reviews](https://www.amazon.com/dp/B00HFLC3HA) [![90K-38159 A/C Drive Belt Tensioner Kit Fit for Chevy Tahoe (2000-2008) GMC Yukon (2000-2008) Cadillac Escalade (2002-2008) Chevy Avalanche (2002-2008) Replaces 19311139 38159 ACK040378HD](https://m.media-amazon.com/images/I/416qH5WguWL.jpg)**90K-38159 A/C Drive Belt Tensioner Kit Fit for Chevy Tahoe (2000-2008) GMC Yukon (2000-2008) Cadillac Escalade (2002-2008) Chevy Avalanche (2002-2008) Replaces 19311139 38159 ACK040378HD** C-Tzu**$19.11**4.8★9 reviews](https://www.amazon.com/dp/B0FDQNMHWY) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Size-Overall**27% *“Fits great”* **Quality-Overall**19% *“Good quality”* **Value For Money**18% *“Good value”* **Assembly/Installation**10% *“Easy to install”* **Efficiency**6% *“It works fine”* **Advertised Vs Actual Product**4% *“Did the job”* **Noise Level**2% *“no more noise”* **Maintenance And Repair**2% *“Easy to replace”* **Durability**1% *“6 months later still working well”* **Soft Feel**1% *“Smooth and quiet”* ### **What buyers complain about ** **Durability**20% *“it broke yesterday”* **Quality-Overall**18% *“Cheap made”* **Friction**15% *“Dont buy it has weak tension”* **Defective Material/Parts**7% *“bad part”* **Noise Level**5% *“Annoying squeak from the bad bearing on the old one is gone”* **Wheel Quality**3% *“Dont waste your money with in 2 days of having it on the wheel broke off of it complete junk”* **Rusts/Corrodes**3% *“rust from the underside of the car I was working on”* **Assembly/Installation**3% *“Fell apart during install”* **Strength**2% *“My old one was wobbly and wore out”* #### **Top return reasons**- Size-Overall32% - Compatibility-Overall20% - Defective Material/Parts11% - Advertised Vs Actual Product9% - Assembly/Installation7% - Functionality-Overall5% - Value For Money3% - Product Condition2% - Noise Level2% - Quality-Overall2%