EXTANG Trifecta Alx Tonneau Cover 750289906585 EXT-90658 Silverado/sierra

( Brand: Extang ), ( Manufacturer Part Number: 90658 ), ( Items Included: Mounting Hardware ), ( UPC: 750289906585 ), ( Weight: 36 ), ( Type: Tonneau Cover ), ( Ipn: Ext 90658 ), ( Last Revision: Bwb03-02-2026 ), ( Length: 74 ), ( Manufacturer Warranty: Limited Lifetime ), ( Width: 37 ), ( Country Of Origin: Mx )

Review EXTANG Trifecta Alx Tonneau Cover Silverado/sierra Hd fits SILVERADO SIERRA 2020–2026

The **Extang 90658 Trifecta ALX Tonneau Cover** is a premium, high-performance solution designed exclusively for the 2020 through 2026 Chevrolet Silverado and GMC Sierra models equipped with the **ALX trim level**, offering unmatched protection, security, and convenience for your truck s bed. Engineered with a **hard-shell, polycarbonate construction**, this tonneau cover combines durability with a sleek, aerodynamic profile, ensuring your cargo remains shielded from the elements rain, snow, dust, and debris while maintaining the truck s aggressive stance. The **one-piece, seamless design** eliminates gaps and weak points, providing superior waterproofing and wind resistance, making it ideal for both urban commutes and rugged off-road adventures. Its **low-profile, flush-mounting system** integrates seamlessly with the truck s bed, reducing drag and improving fuel efficiency without sacrificing functionality. The cover features **reinforced edges and a robust locking mechanism**, ensuring a secure fit that resists vibrations, shifting loads, and accidental opening, even during high-speed driving or rough terrain. For added convenience, the **quick-release latch system** allows for effortless installation and removal, while the **optional remote control** (sold separately) enables hands-free operation, enhancing usability in tight or awkward parking situations. Available in **multiple color options**, including matte black, gray, and silver, the Trifecta ALX not only elevates the aesthetic appeal of your truck but also delivers a **quiet, smooth operation** that minimizes noise and distractions while driving. Whether you re hauling tools, equipment, or simply keeping your bed clean, this tonneau cover is a **versatile, long-lasting investment** that merges performance with style, ensuring your Silverado or Sierra remains both functional and formidable on and off the road.

### **Pros and Cons of buying a Extang 90658 Trifecta ALX Tonneau Cover for 2020 2026 Silverado/Sierra**

1. **Full Coverage and Protection** The Trifecta ALX is designed to provide full tonneau coverage, shielding cargo from wind, rain, snow, and debris while driving. This is particularly useful for long hauls or inclement weather conditions.

2. **Durability and Weather Resistance** Made with high-quality materials, including UV-resistant fabric and a sturdy frame, the cover is built to withstand harsh outdoor conditions. The waterproof and windproof design ensures cargo remains dry and secure.

3. **Easy Installation and Removal** The ALX model features a quick-release latch system, allowing for hassle-free installation and removal without tools. This makes it convenient for frequent use or when loading/unloading cargo.

4. **Compatibility with 2020 2026 Silverado/Sierra** The Extang 90658 is specifically engineered to fit the bed dimensions of these models, ensuring a snug, secure fit without gaps or misalignment.

5. **Reduced Drag and Improved Fuel Efficiency** Unlike open beds, a tonneau cover minimizes aerodynamic drag, which can slightly improve fuel economy, especially at highway speeds.

6. **Enhanced Security** A closed tonneau cover deters theft by keeping cargo out of sight and reducing access points for potential thieves.

7. **Versatile Use Cases** Whether hauling equipment, tools, or personal items, the cover provides a clean, organized space that keeps contents protected from the elements.

8. **Minimal Bed Space Reduction** Unlike some tonneau covers that significantly narrow the bed, the ALX model maintains a relatively open feel while still offering full coverage.

---

1. **Higher Upfront Cost** Compared to basic or partial tonneau covers, the Trifecta ALX is a premium product, which may be more expensive than budget-friendly alternatives.

2. **Potential for Wear Over Time** While durable, frequent use and exposure to harsh weather can eventually lead to wear on the fabric or frame, requiring maintenance or eventual replacement.

3. **Installation Complexity for Some Users** Although the latch system is user-friendly, those unfamiliar with tonneau covers may find the initial setup slightly challenging, though it becomes easier with practice.

4. **Limited Accessibility for Large Items** While the cover is quick to remove, loading oversized or bulky items (e.g., lumber, large tools) may still require lifting the cover, which can be cumbersome.

5. **Possible Noise at High Speeds** Some tonneau covers produce wind noise at highway speeds, though the ALX is designed to minimize this effect. Individual experiences may vary.

6. **Maintenance Requirements** Regular cleaning and inspection of the frame and fabric are recommended to prevent mold, mildew, or damage from debris buildup.

7. **Not Ideal for Extreme Off-Roading** While sturdy, the cover may not be suitable for off-road conditions where rough terrain could damage the frame or fabric.

---

The **Extang 90658 Trifecta ALX Tonneau Cover** is a well-engineered, high-quality option for the 2020 2026 Silverado/Sierra, offering superior protection, ease of use, and compatibility. Its full-coverage design and durability make it a strong choice for those prioritizing security, weather resistance, and convenience. However, the higher cost and potential maintenance needs should be considered against the benefits.

If you frequently drive in varied weather conditions, prioritize cargo security, and want a reliable, easy-to-use tonneau cover, the **Extang 90658 Trifecta ALX** is an excellent investment. It strikes a balance between functionality, durability, and user-friendliness, making it one of the top choices for this generation of Silverado/Sierra. If budget is a concern, it may be worth comparing it to other high-rated models, but for most users seeking a premium solution, this cover delivers strong value.

Details:

In perfect condition. Came with the truck from dealer and I haul too much tall equipment to keep it.

part #: 90658 prices

• $275.00-$599.99

specifications otruckbedaccessories:

• for models: Silverado, Sierra
• for years: 2020-2026
• brand: Extang
• mpn: 90658
• items included: Mounting Hardware
• upc: 750289906585
• weight: 36
• type: Tonneau Cover
• ipn: Ext 90658
• last revision: Bwb03-02-2026
• length: 74
• manufacturer warranty: Limited Lifetime
• width: 37
• country of origin: Mx

shipping otruckbedaccessories:

seller otruckbedaccessories:

• city: Richmond, Virginia
• # reviews: 334
• rating: 99.6%

offer otruckbedaccessories:

• availability: In Stock
• sold: 0
• quantity: 1
• started: April 7, 2026
• options: Seller-arranged-local-pickup
• best offers: True

payments otruckbedaccessories:

• other
• credit card: Discover
• wallet: Apple-pay

general otruckbedaccessories:

• Exterior Parts Accessories > Truck Beds Parts > Truck Bed Accessories
• condition: Used

returns otruckbedaccessories:

• policy: No Returns

Extang 90658 Is Similar To:

• 5ft Fold Crew 83765 3in Extang Dakota Tonneau 2.0 Dodge 05-11 Cab Solid (37.5% similar) Either way, you'll get the parts you want fast. Is a re designed, re engineered version of Extang's most popular cover, the solid fold. Pickup surplus. About pickup surplus. Tonneau dodge Dakota crew cab 5FT 3IN Extang solid fold all of the versatile elements of the original solid fold remain it ...(July 3rd, 2015)
• Solid 14-15 Fold Tonneau Toyota 2.0 83471 Extang Tundra Lb 8 Ft Cover (21.1% similar) Solid fold is a re designed, re engineered version of Extang's most popular cover, the solid fold. An oem look and a soft feel. All of the versatile elements of the original solid fold remain it comes fully assembled out of the box, installs in seconds and folds using its three panels and aluminum ...(June 26th, 2015)
• 2 14410 Tonneau Tufftonno Extang 1 Bed 09-12 F150 Ft Ford 6 Cover (23.2% similar) Quantity sold individually. Actual item may vary. Cover color black cover material vinyl cover warranty 10 year drilling required no frame warranty lifetime hinged no notes fits model's with buyer pays return shipping. Rail color silver rail material aluminum tonneau cover attachment belt rail ...(August 31st, 2014)
• 14430 Tonno Tuff Tonneau Cover Extang (36.4% similar) That's more than enough. Part number details product name tiff tonne tonneau cover black vinyl BBQL14430 upc mpn weight Extang engineers created the no damage, no drilling, clamp on aluminum frame tonneau truck cover and the tonne pickup truck bed cover systems...(January 23rd, 2015)
• 14445 Tonneau Cover Tonno Extang Tuff (34.5% similar) Just remember that ships everything from iPod's to lawnmowers, so some items will not have the save 10 on shipping discount and will not be eligible. Please directly to resolve any issue. Our team has successfully completed well over 1 million individual listings in our career...(September 26th, 2014)
• Tonno 14450 Tuff Cover Tonneau Extang (30.9% similar) Extang engineers created the no damage, no drilling, clamp on aluminum frame tonneau truck cover and the tonne pickup truck bed cover systems. That's more than enough. Part number details product name tiff tonne tonneau cover black vinyl BBQL14450 upc mpn weight lbs...(November 8th, 2014)
• 14465 Extang Tuff Tonno Tonneau Cover (41.8% similar) Picked the wrong car model or year. Need a different item altogether. In some cases, an even longer manufacturers warranty is included for free. Extang engineers created the no damage, drilling, clamp-on aluminum frame tonneau truck cover and tonne pickup bed systems. So why worry. Its as easy that...(March 2nd, 2017)
• 14475 15 Tonno Tonneau 150 Extang Tuff Cover (28.8% similar) That's more than enough. Easy warranty bap performance stands apart from the competition when it comes to warranty service. Extang engineers created the no damage, no drilling, clamp on aluminum frame tonneau truck cover and the tonne pickup truck bed cover systems...(November 26th, 2014)
• 14480 Extang Tuff Tonno Tonneau (32.7% similar) In some cases, an even longer manufacturers warranty is included for free. That's more than enough. Picked the wrong car model or year. Need a different item altogether. Theres a long road ahead and Extang tonneau - tonnes have you your pickup truck covered, protected secure. Extang engineers ...(July 4th, 2017)
• 14485 Extang Tuff Tonno Tonneau (32.7% similar) In some cases, an even longer manufacturers warranty is included for free. That's more than enough. Its as easy that. Picked the wrong car model or year. Need a different item altogether. Theres a long road ahead and Extang tonneau - tonnes have you your pickup truck covered, protected secure. So ...(May 13th, 2017)
• 14486 Extang Tuff Tonno Tonneau 750289144864 (35.9% similar) Expedited shipping via USPS priority mail with delivery confirmation is available. Theres a long road ahead and Extang tonneau - tonnes have you your pickup truck covered, protected secure. That's more than enough. Images are the manufacturer. Manufacturer: Extang manufacturer number: 14486 fits: ...(April 8th, 2017)