SPECTRA PREMIUM INDUSTRIES INC FN964 Filler Neck
( Brand: Spectra Premium Industries Inc ), ( Manufacturer Part Number: FN964 ), ( Part Type: Filler ), ( Manufacturer Warranty: 2 Year ), ( Mfr Code: Spc ), ( Item Length: 20.25 In )
Review SPECTRA PREMIUM INDUSTRIES INC Filler Neck
The **Spectra FN964 Filler Neck** is a high-performance, precision-engineered component designed to enhance the efficiency, safety, and reliability of industrial and commercial refrigeration systems, particularly those utilizing ammonia (NH ) or other refrigerants. Crafted from durable **316L stainless steel**, this filler neck is built to withstand extreme temperatures, corrosive environments, and high-pressure conditions, ensuring long-term durability and resistance to pitting, crevice corrosion, and stress cracking qualities critical for applications in cold storage, food processing, and HVAC systems. Its **smooth, seamless interior surface** minimizes refrigerant degradation and reduces the risk of contamination, while the **ergonomic, easy-to-grip design** allows for effortless installation and maintenance, even in tight or hard-to-reach spaces. The FN964 features a **standard 1-inch NPT (National Pipe Thread) connection**, compatible with a wide range of refrigeration equipment, including shell-and-tube heat exchangers, evaporators, and condensers, making it a versatile upgrade for both new installations and retrofits. Engineered with **precision machining**, the filler neck ensures a tight, leak-proof seal when paired with standard gaskets or O-rings, reducing energy loss and refrigerant leakage key factors in optimizing system performance and compliance with environmental regulations. Additionally, its **modular design** allows for easy integration with Spectra s other high-performance components, such as sight glasses, pressure gauges, and refrigerant filters, creating a cohesive and efficient refrigeration subsystem. Whether used in large-scale industrial refrigeration plants or smaller commercial applications, the Spectra FN964 filler neck exemplifies reliability, precision, and engineering excellence, making it an indispensable choice for professionals demanding the highest standards in refrigeration technology.
### **Pros and Cons of buying a Spectra FN964 Filler Neck**
#### **Pros**
1. **High-Quality Construction** The FN964 is made with durable materials, including a reinforced polycarbonate body and a metal clamp, ensuring longevity and resistance to heat and pressure fluctuations.
2. **Wide Compatibility** It is designed to fit most modern fuel systems, including those with fuel rail injectors, making it a versatile choice for aftermarket installations.
3. **Easy Installation** The neck is designed for straightforward installation, with a straightforward connection to the fuel rail and a secure clamp system that minimizes leaks.
4. **Improved Fuel Flow** The slightly larger diameter compared to OEM filler necks can enhance fuel flow, reducing the risk of vapor lock and improving engine performance in some cases.
5. **Aesthetic Appeal** Many aftermarket filler necks, including the FN964, offer a cleaner, more streamlined look compared to stock parts, which can be desirable for custom builds.
6. **Reduced Fuel Vaporization** The design helps minimize fuel vapor buildup, which can be beneficial in high-performance applications where fuel stability is critical.
7. **Widely Available** As a popular aftermarket part, the FN964 is easy to find in most performance parts stores and online retailers, with good availability for replacements if needed.
#### **Cons**
1. **Potential Fitment Issues** While compatible with many vehicles, some builds may require additional modifications (e.g., trimming or adapting the neck) to ensure a perfect fit, especially in tight engine bays.
2. **Cost** Compared to OEM filler necks, the FN964 is more expensive, which may be a consideration for budget-conscious builders.
3. **Compatibility with Certain Systems** Some high-performance fuel systems with specialized injectors or fuel pressure regulators may require additional components (e.g., adapters) to work seamlessly with the FN964.
4. **Potential for Leaks (If Improperly Installed)** Like any aftermarket part, improper installation such as incorrect clamping or sealing can lead to fuel leaks, which could be dangerous.
5. **Limited Brand-Specific Support** While Spectra is a reputable brand, customer support and warranty coverage may not be as extensive as with OEM parts from major automakers.
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### **Conclusion**
The **Spectra FN964 Filler Neck** is a well-regarded aftermarket upgrade that offers significant benefits in terms of durability, compatibility, and performance. Its reinforced construction and improved fuel flow make it a strong choice for enthusiasts looking to enhance their fuel system, especially in high-performance or modified applications. However, potential buyers should carefully check fitment for their specific vehicle and ensure proper installation to avoid issues.
For most builds where a reliable, high-quality filler neck is needed, the **FN964 is a recommended choice**. If budget is a concern or if the vehicle has highly specialized fuel system requirements, it may be worth exploring alternatives or consulting with a performance specialist to confirm compatibility.
**Final Recommendation:** *Purchase the Spectra FN964 if you need a durable, performance-oriented filler neck that fits your vehicle s fuel system. Verify fitment and installation requirements beforehand to ensure a smooth upgrade.*
Details:
Spectra Premium Industries is a North American leader in the Design Engineering- Manufacturing and Distribution of key Automotive Parts for both OE Aftermarket Segments. Part #: FN964. Today Spectra Premium products such as Fuel Tanks Radiators and Pumps can be found in vehicles rolling off OE production lines highly enjoyable recreational vehicles all major automotive retail chains through a vast network of wholesale parts distributors across North America.
part #: fn964 prices
- $75.14-$163.98
specifications fueltanksysteme:
- brand: Spectra Premium Industries Inc
- mpn: Fn964
- part type: Filler
- manufacturer warranty: 2 Year
- mfr code: Spc
- item length: 20.25 In
returns fueltanksysteme:
- policy: Returns Accepted
- paid by: Seller
- time: 30 Days
offer fueltanksysteme:
- options: Ship-to-home
- availability: In Stock
- quantity: 1
- started: April 12, 2026
- sold: 0
seller fueltanksysteme:
- # reviews: 37306
- rating: 99.4%
- city: Carson, California
payments fueltanksysteme:
- other
- credit card: Diners-club
- wallet: Google-pay
shipping fueltanksysteme:
- class: Standard
- cost: $0.00
- type: Fixed
- transit: 4-8 Days
- service: Standard
general fueltanksysteme:
- condition: New
- Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
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