BUICK 42709588 Gx Fuel Gas Tank Storage Bottle Reservoir
fits model: Encore. make: Buick. year: 2020–2025.
( Manufacturer Part Number: 42709588 ), ( Listed: Uv86 ), ( Year: 2024 ), ( Id: 6bf92f5c-a1f7-411f-92bf-3ed2ee216874 ), ( Location: Nyab5c ), ( Type: Fuel Tank ), ( Material: Plastic ), ( Fuel Type: Gasoline ), ( Capacity: 13 Gal ), ( Oe/oem Part Number: 42854460, 42709588 )
Review BUICK Gx Fuel Gas Tank Storage Bottle Reservoir Oem fits ENCORE 2020–2025
The **Buick 42709588 2020 2025 Encore GX Fuel Gas Tank Storage Bottle and Reservoir** is a high-quality, OEM-specification replacement component designed to ensure optimal performance and reliability for Buick s compact luxury crossover vehicles. Engineered to meet or exceed factory standards, this fuel tank storage bottle and reservoir is crafted from durable, corrosion-resistant materials, including reinforced plastic and sturdy metal fittings, to withstand the demands of daily driving while maintaining fuel integrity. The unit is meticulously calibrated to accommodate the precise fuel delivery requirements of the Encore GX s advanced fuel injection system, ensuring seamless operation and preventing leaks or malfunctions that could compromise engine efficiency or safety. Its precise dimensions and mounting compatibility guarantee a perfect fit under the vehicle s hood, aligning flawlessly with the factory-installed components for a clean, professional installation. Whether replacing an aging original part or upgrading during routine maintenance, this reservoir is built to enhance fuel system performance, reduce vapor emissions, and extend the longevity of the vehicle s fuel handling components. Ideal for both professional mechanics and discerning DIY enthusiasts, it combines Buick s engineering precision with long-lasting durability, making it an essential upgrade for maintaining the Encore GX s smooth, efficient operation.
The **Buick Encore GX (2020 2025)** is a compact luxury crossover SUV that offers a hybrid-electric powertrain. The **42709588** part number refers to a **fuel tank storage bottle or reservoir** for the hybrid system, which stores compressed hydrogen or high-pressure fuel for the electric motor. Below is a detailed analysis of the pros and cons of purchasing this component, followed by a conclusion and recommendation.
---
### **Pros of buying a Buick Encore GX Fuel Tank Storage Bottle/Reservoir (Part #42709588)**
1. **OEM Quality and Compatibility**
- This is an **original equipment manufacturer (OEM) part**, meaning it is designed specifically for the Buick Encore GX hybrid system. It ensures a perfect fit, proper function, and compatibility with the vehicle s electrical and mechanical systems.
- Avoids issues that can arise from aftermarket parts that may not meet GM s strict engineering standards.
2. **Reliability and Durability**
- GM s hybrid systems are engineered for longevity, and OEM components are built to withstand the high pressures and thermal cycles associated with hybrid fuel storage.
- Reduces the risk of leaks, cracks, or premature failure compared to non-genuine parts.
3. **Warranty Coverage**
- Purchasing from an authorized GM dealer or a reputable supplier often includes a **factory-backed warranty**, covering defects in materials or workmanship.
- Aftermarket parts may lack such protections, leaving you responsible for repairs if the component fails early.
4. **Performance and Efficiency**
- A properly functioning fuel tank storage bottle ensures optimal performance of the hybrid system, maintaining battery efficiency, regenerative braking, and overall fuel economy.
- Prevents potential drivability issues caused by degraded or faulty components.
5. **Resale Value Protection**
- Keeping the vehicle in top condition with OEM parts helps maintain its **resale value**, as buyers prefer well-maintained hybrids with original components.
- Avoids potential red flags for future owners if aftermarket parts are installed.
6. **Access to Technical Support**
- GM dealerships and authorized service centers have access to **factory diagnostics and repair manuals**, ensuring accurate installation and troubleshooting.
- Aftermarket parts may require third-party support, which can be less reliable.
7. **Environmental and Safety Compliance**
- OEM parts meet **GM s safety and emissions standards**, ensuring the hybrid system operates within regulatory limits.
- Aftermarket components risk non-compliance, which could lead to failed emissions tests or voided warranties.
8. **Long-Term Cost Savings**
- While OEM parts are more expensive upfront, they reduce the likelihood of **recurring repair costs** associated with aftermarket failures.
- Prevents costly damage to other hybrid system components (e.g., battery, motor, or control modules) due to improper part installation.
---
### **Cons of buying a Buick Encore GX Fuel Tank Storage Bottle/Reservoir (Part #42709588)**
1. **Higher Upfront Cost**
- OEM parts are **significantly more expensive** than aftermarket alternatives. The fuel tank storage bottle/reservoir for a Buick Encore GX hybrid will likely cost **$300 $800 **, depending on the supplier and labor costs.
- This can be a financial burden for owners on a tight budget or those who prefer cheaper repairs.
2. **Limited Availability Outside Dealerships**
- Unlike basic fuel tanks, hybrid-specific components like this are **not widely stocked at auto parts stores** (e.g., AutoZone, O Reilly, or RockAuto).
- You may need to order directly from **GM dealers, authorized hybrid specialists, or online marketplaces** (e.g., RockAuto, PartsGeek, or eBay), which can extend wait times.
3. **Specialized Installation Requirements**
- Hybrid fuel tank storage bottles require **proper handling, pressure testing, and sealing** to prevent leaks or safety hazards.
- Installation often necessitates **GM-certified technicians** with experience in hybrid systems, increasing labor costs.
- DIY installation is **not recommended** due to the high-pressure nature of the component and potential voiding of the vehicle s warranty.
4. **Potential for Counterfeit or Mismatched Parts**
- When purchasing online, there is a risk of receiving **counterfeit or non-genuine parts** that may fail prematurely or not fit correctly.
- Always verify the part s **GM part number, serial number, and supplier credibility** to avoid scams.
5. **Warranty Restrictions**
- If the vehicle is still under **factory warranty**, using non-OEM parts may **void coverage** for hybrid-related issues.
- Some extended warranties or service contracts also require OEM parts for claims to be valid.
6. **Environmental and Disposal Concerns**
- Hybrid fuel tank storage bottles contain **high-pressure gases and specialized materials** that require **proper disposal or recycling**.
- Improper disposal can pose **environmental risks** or legal liabilities if not handled by a certified facility.
7. **Longer Lead Times**
- Due to the specialized nature of the part, **stock availability may be limited**, leading to longer wait times for delivery.
- This can be problematic if the component fails unexpectedly and the vehicle is out of service.
8. **Potential for Overkill for Minor Issues**
- If the fuel tank storage bottle is failing due to **wear and tear rather than a catastrophic failure**, some owners may consider **aftermarket alternatives** as a cost-effective solution.
- However, this carries risks if the aftermarket part does not meet GM s safety standards.
---
### **Conclusion**
The **Buick Encore GX fuel tank storage bottle/reservoir (Part #42709588)** is a **critical OEM component** that ensures the reliability, safety, and efficiency of the hybrid system. While it comes with a **higher cost and limited availability**, the benefits such as **long-term durability, warranty coverage, and peace of mind** make it the **best choice for most owners**.
Aftermarket alternatives may seem tempting due to their lower price, but they **risk compromising performance, safety, and warranty protection**. If budget is a concern, it may be worth exploring **financing options through a GM dealer** or checking if the vehicle s warranty covers the replacement.
For owners who prioritize **long-term vehicle health and resale value**, investing in the **OEM part is the recommended approach**. However, if the component is failing due to **non-critical issues** and the vehicle is out of warranty, consulting a **hybrid specialist** to assess whether an aftermarket part is viable (with proper testing) could be a secondary option though this is not ideal.
---
### **Final Recommendation**
**Buy the OEM Buick Encore GX fuel tank storage bottle/reservoir (Part #42709588) from an authorized GM dealer or a trusted hybrid specialist.** Here s why:
- **Prioritize safety and reliability** hybrid systems require precision components to avoid leaks, fires, or drivability issues.
- **Avoid voiding warranties** GM s hybrid warranty may not cover aftermarket parts.
- **Ensure proper installation** hybrid components must be handled by trained technicians to prevent damage.
- **Protect resale value** a well-maintained hybrid with OEM parts retains its value better than one with mixed components.
If cost is a major concern, **explore financing options** or check if the vehicle s powertrain warranty still applies. Otherwise, **do not compromise on quality** the risks of using non-OEM parts far outweigh the savings.
Details:
This MUST be specified AT TIME OF PURCHASE. Orders are shipped via USPS, UPS, or FedEx. 2020 - 2025 BUICK ENCORE GX FUEL GAS TANK storage BOTTLE RESERVOIR OEM 42709588 Menu. Items are sold in good, working condition and have been inspected prior to listing.
Shipping charges are based on delivery zip code and apply to the lower 48 states. Are final sale. 60-day return period begins on the day part is delivered. All listed parts have already been removed from donor vehicles and are on the shelf ready to be shipped.
Pulsate Template v6-3-24 model: Encore GX. Fuel Tanks Filler Necks. High quality pictures are provided for each item so you can see its exact condition. Locations without a dock or forklift will incur lift gate fee.
part #: 42709588 prices
- $89.55-$350.00
specifications fueltanksysteme:
- for models: Encore
- for makes: Buick
- for years: 2020-2025
- mpn: 42709588
- listed: Uv86
- year: 2024
- id: 6bf92f5c-a1f7-411f-92bf-3ed2ee216874
- location: Nyab5c
- type: Fuel Tank
- material: Plastic
- fuel type: Gasoline
- capacity: 13 Gal
- oe/oem part number: 42854460, 42709588
offer fueltanksysteme:
- availability: In Stock
- started: March 29, 2026
- quantity: 1
- best offers: True
- sold: 0
- options: Ship-to-home
payments fueltanksysteme:
- wallet: Apple-pay
- credit card: Mastercard
- other
seller fueltanksysteme:
- rating: 100.0%
- city: Nicholasville, Kentucky
- # reviews: 76437
shipping fueltanksysteme:
- type: Fixed
- service: Flat Rate Freight
- class: Freight
- cost: $250.00
general fueltanksysteme:
- condition: Used
- Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
returns fueltanksysteme:
- time: 60 Days
- policy: Returns Accepted
- paid by: Buyer
Buick 42709588 Is Similar To:
- 10321839 Gm Buick Oem 00-04 (17% similar) Superseded part numbers this item may have been from a different number manufacture...(August 7th, 2017)
- 10504y Stant Fuel Tank Cap For Buick Lacrosse Regal Verano Cadillac (39.7% similar) Electronic items are not returnable. This e-mail is constantly monitored so you can be sure your questions will answered promptly and courteously...(August 2nd, 2018)
- 10834y Stant Oem Type Buick (9.4% similar) Note: the compatibility listing may not be 100 accurate...(February 15th, 2018)
- 13351224 Gm Buick Oem Verano Fuel Neck Tube Pipe (31.5% similar) All airbag modules are also non returnable. Est, Mon to Fri...(August 11th, 2018)
- 14483366 Perfect Fit Gallon Fuel Tank For Buick Electra 646621890455 (34% similar) Please for any questions. Some manufacturers require that you register your product to activate its warranty. The manufacturers warranty shall be exclusive remedy for any such product defect or failure. Each warranty gives you specific rights, and may have other rights which vary from state...(July 26th, 2018)
- 1878-1828 Brock Buick Century Regal Fuel Filler Neck Assembly (28.6% similar) Match a reference number from the e-z chart below. 98-99 buick century regal fuel filler neck assembly a high quality aftermarket replacement made to fit like new. They are created using the original equipment oe standards to ensure operate and fit just like. Identify your vehicle in the list below...(June 16th, 2019)
- 22832586 Buick Regal Fuel Tank Filler Gas Door Lid Cover Oem (40.3% similar) Products sold in quantities will show a single image representing the others equal or greater condition. Expedited shipping available, directly for details...(October 22nd, 2018)
- 22938619 Gm Buick Oem 10-16 (17% similar) This part fits vehicles made in the following years 2010 , 2011 , 2012 , 2013 , 2014 , 2015 , 2016 . Superseded part numbers this item may have been from a different number manufacture...(December 17th, 2017)
- 22944787 Gm Buick Oem Regal Fuel Neck Tube Pipe (31.7% similar) All airbag modules are also non returnable. Est, Mon to Fri...(October 8th, 2018)
- 22944789 Gm Buick Oem Lacrosse Fuel Neck Tube Pipe (31% similar) Est, Mon to Fri. All airbag modules are also non returnable...(October 8th, 2018)
- 25682874 Gm Nos Fuel Filler Door Actuator Buick Cadillac Oldsmobile (28.8% similar) Buick park AVENUE1997-2005CADILLAC DEVILLE2000-2005CADILLAC SEVILLE1998-2004OLDSMOBILE AURORA2001 nos gm fuel filler door actuator Cadillac Oldsmobile, check part number before purchasing...(June 16th, 2018)
