SUBARU 21175AA010 Filler Neck
fits make: Subaru. year: 2017–2023.
( Manufacturer Part Number: 21175AA010 ), ( Part Type: Filler ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2017 2018 2019 2020 2021 2022 2023 ), ( Parts Included: Only Part Reference 4 On The Diagram Is Included )
Review SUBARU Genuine Filler Neck fits 2017–2023
The **Subaru 21175AA010 Filler Neck** is a precision-engineered component designed specifically for Subaru engines, serving as the critical interface between the engine s oil system and the oil filler cap. Crafted from high-quality, durable materials, this filler neck is built to withstand the rigors of daily driving, extreme temperatures, and the corrosive effects of engine oils and fuels. Its robust construction ensures a secure, leak-proof seal when properly installed, preventing oil leaks and maintaining optimal engine lubrication. The neck features a smooth, tapered design that facilitates easy installation and removal, while its precise dimensions guarantee a perfect fit with the corresponding oil filler cap and engine bay components. Engineered to meet or exceed OEM specifications, this filler neck is compatible with a range of Subaru models, including those equipped with horizontally opposed (boxer) engines, where reliability and performance are paramount. Whether used in original equipment applications or as a high-quality replacement part, this filler neck exemplifies Subaru s commitment to engineering excellence, ensuring long-term durability and seamless functionality in even the most demanding driving conditions.
### **Pros and Cons of Buying a Subaru Filler Neck (Part Number: 21175AA010)**
#### **Pros:**1. **OEM Quality and Fit** This is a genuine Subaru part, meaning it is designed to match the exact specifications of your vehicle s engine bay. It ensures a proper seal, reducing the risk of leaks or improper installation.
2. **Durability** Subaru parts are known for their robust construction, often made from high-quality materials that resist corrosion and wear over time. This filler neck is likely to last as long as the original component.
3. **Compatibility** Since it is an original equipment part, it will fit seamlessly with other OEM components in your engine bay, reducing the chance of interference or misalignment.
4. **Warranty Coverage** If purchased from an authorized Subaru dealer or a reputable aftermarket supplier, this part may come with a warranty, providing peace of mind against defects.
5. **Aesthetic Consistency** The filler neck contributes to the vehicle s original appearance. Replacing it with an OEM part ensures the engine bay looks factory-intact, which is important for enthusiasts who value authenticity.
6. **Reliability** Subaru s engineering standards mean this part is less likely to fail prematurely compared to aftermarket alternatives that may cut corners on materials or design.
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#### **Cons:**1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives. The price of a Subaru filler neck (21175AA010) may be significantly higher, especially if purchased directly from a dealer.
2. **Limited Availability** Depending on the region, finding this specific part may require ordering from a distributor, which could result in longer wait times compared to aftermarket options that are often stocked locally.
3. **Potential Overkill for Minor Repairs** If the filler neck is only damaged or cracked in a small area, some mechanics might argue that a partial repair (e.g., sealing a crack) could suffice, making an OEM replacement unnecessary.
4. **No Performance Benefits** Unlike some aftermarket parts, this filler neck does not offer any performance upgrades. It is purely a functional and aesthetic replacement.
5. **Environmental and Ethical Considerations** Purchasing new OEM parts contributes to automotive waste. If you are environmentally conscious, you might consider refurbished or salvaged parts instead.
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### **Conclusion**
The **Subaru filler neck (21175AA010)** is a high-quality, reliable replacement that ensures proper fit, durability, and aesthetic consistency. It is the best choice if you prioritize **authenticity, long-term reliability, and warranty coverage**, even at a higher cost. However, if budget or availability is a concern, aftermarket alternatives (while potentially riskier) may offer a more affordable solution.
For most Subaru owners who value **original equipment standards**, this part is a **strong recommendation**, especially if the vehicle is being restored or maintained to factory specifications. If the damage is minor, consulting a mechanic about cost-effective repairs could also be a viable option.
**Final Recommendation:**If you need a **direct replacement for a damaged or missing filler neck** and can justify the cost, **purchase the OEM Subaru part (21175AA010)**. If you are working within a tighter budget or the damage is localized, explore aftermarket options or partial repair solutions but be aware of potential long-term risks. Always verify the part s authenticity and compatibility before purchasing.
Details:
Electrical parts are not returnable. Parts must be resalable and in the original packaging. 2.5L, 2024-25. Genuine Subaru Parts.
Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.
part #: 21175aa010 prices
- $19.98-$28.79
specifications ocoosys:
- for makes: Subaru
- for years: 2017-2023
- mpn: 21175aa010
- part type: Filler
- genuine oem: Yes
- manufacturer warranty: 1 Year
- universal fitment: Direct Replacement
- year: 2017 2018 2019 2020 2021 2022 2023
- parts included: Only Part Reference 4 On The Diagram Is Included
payments ocoosys:
- credit card: Diners-club
- other
- wallet: Google-pay
offer ocoosys:
- started: May 16, 2026
- sold: 0
- availability: In Stock
- options: Ship-to-home
- quantity: 2
general ocoosys:
- Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
- condition: New
returns ocoosys:
- paid by: Seller
- policy: Returns Accepted
- time: 30 Days
seller ocoosys:
- # reviews: 173
- city: Salt Lake City, Utah
- rating: 100.0%
shipping ocoosys:
- carrier: UPS
- class: Standard, Expedited, One-day
- transit: 5-8 Days
- type: Fixed
- service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver
- cost: $0.00
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