1. Fuel Tanks & Filler Necks Deals
  2. sku: 24080833428298793
  3. AM 12339048-1

AM GENERAL LLC 12339048-1 Hmmwv Fuel Filler Neck Housing

12339048-1 Am General Llc Hmmwv Fuel Filler Neck Housing

( Brand: Am General Llc ), ( Manufacturer Part Number: 12339048-1 ), ( Type: Filler Neck ), ( Features: 0.281 In. Dia 3 Holes, On 4.500 In. Bolt Circle; W/flange ), ( Shape: Round ), ( Country Of Origin: United States ), ( Nsn: 2590-01-197-5446 )

Review AM GENERAL LLC Hmmwv Fuel Filler Neck Housing

The **AM General 12339048-1 HMMWV Fuel Filler Neck Housing** is a precision-engineered component designed specifically for the Humvee (High Mobility Multipurpose Wheeled Vehicle) platform, ensuring seamless integration with the vehicle s fuel system while maintaining structural integrity and operational reliability. Crafted from high-grade, corrosion-resistant materials, this fuel filler neck housing is built to withstand the harshest environments, from desert sands to wet, salt-laden coastal conditions, where exposure to moisture, chemicals, and abrasive elements can compromise lesser-quality parts. The housing features a robust, threaded connection at the base, allowing for a secure and leak-proof attachment to the vehicle s fuel tank, while its ergonomic design ensures easy access for refueling operations without the need for excessive force or specialized tools. The outer surface is engineered with a durable, textured finish that resists scratches and fading, preserving both functionality and aesthetics over extended periods of service. Whether deployed in military operations, humanitarian missions, or commercial applications, this component plays a critical role in maintaining fuel system efficiency, reducing the risk of spills or contamination, and extending the overall lifespan of the HMMWV s fuel infrastructure. Its compatibility with standard HMMWV fuel systems ensures a perfect fit, minimizing the need for modifications or customization, and its robust construction aligns with the vehicle s reputation for durability and adaptability in demanding operational scenarios.

### **Pros and Cons of buying a AM General 12339048-1 HMMWV Fuel Filler Neck Housing**

#### **Pros:**

1. **Direct Compatibility** This part is specifically designed for the HMMWV (Humvee) platform, ensuring a proper fit without modification. It is manufactured by AM General, a trusted supplier of military and commercial vehicle components, which guarantees quality and reliability.

2. **Durability and Performance** The fuel filler neck housing is constructed to withstand harsh conditions, including off-road use, extreme temperatures, and exposure to fuel vapors. It is built to prevent leaks, reduce fuel evaporation, and maintain proper sealing.

3. **Standardized Design** As an OEM (Original Equipment Manufacturer) part, it adheres to military and automotive industry standards, ensuring compatibility with existing fuel systems and reducing the risk of compatibility issues.

4. **Ease of Installation** Since it is a direct replacement, installation should be straightforward for someone with basic mechanical skills. No major modifications to the vehicle s fuel system are typically required.

5. **Long-Term Reliability** AM General parts are known for durability, meaning this component is likely to last as long as the vehicle itself, reducing the need for frequent replacements.

6. **Support for Military and Off-Road Use** If you operate the HMMWV in rugged or military environments, this part is designed to perform under demanding conditions, reducing downtime due to failures.

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#### **Cons:**

1. **Cost** As an OEM part, it may be more expensive than aftermarket alternatives. Pricing can vary depending on availability, demand, and whether it is new or used.

2. **Limited Availability** OEM parts, especially for military vehicles, can sometimes be harder to source than aftermarket parts. Availability may depend on military surplus suppliers, which could introduce delays.

3. **Potential for Counterfeit Parts** Due to the high demand for HMMWV parts, there is a risk of purchasing counterfeit or low-quality replicas. Buying from a reputable dealer or directly from AM General (or authorized distributors) is crucial to avoid this issue.

4. **Weight and Bulk** The fuel filler neck housing is a heavy component, which may require additional effort to handle and install, especially in tight spaces.

5. **No Customization Options** Unlike some aftermarket parts, this OEM component does not offer customization in terms of material, finish, or additional features. It is a "one-size-fits-all" solution.

6. **Potential for Obsolescence** While unlikely for a widely used vehicle like the HMMWV, there is a small chance that future modifications or updates to the vehicle s fuel system could render this part incompatible with newer models or upgrades.

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### **Conclusion:**

The **AM General 12339048-1 HMMWV Fuel Filler Neck Housing** is a high-quality, reliable, and directly compatible part for maintaining or restoring an HMMWV s fuel system. Its durability, adherence to military standards, and ease of installation make it an excellent choice for serious operators, whether for military, law enforcement, or off-road use. However, the higher cost and potential availability challenges particularly if sourcing from civilian suppliers may be drawbacks for some buyers.

For most users who prioritize **performance, longevity, and compatibility**, this part is the best option. If budget or availability is a concern, thorough research into alternative suppliers (such as military surplus stores or authorized dealers) is recommended to ensure authenticity and quality.

### **Recommendation:**

- **Buy from a reputable source** (e.g., AM General s official distributors, trusted military surplus dealers, or eBay/Auction sites with verified sellers) to avoid counterfeit parts.

- **Verify compatibility** with your specific HMMWV model variant to ensure the part matches your vehicle s exact specifications.

- **Consider aftermarket alternatives** only if cost is a major factor, but be cautious of quality and warranty support.

- **Install with care**, following proper procedures to avoid leaks or damage to surrounding components.

For most HMMWV owners seeking a **long-term, reliable solution**, the AM General 12339048-1 is the **strongest recommendation**.

Details:

Alternate Part Numbers: 12339048, 5575859, 01-197-5446, 123390481. PN: 12339048-1, NSN: 2590-01-197-5446. Compatibility: Fits all years and model's of the M998 HMMWV series including M1025, M1038, M1097, M1123, M1151 civilian Hummer H1 from 1992 1995. Item is in new old stock condition.

Physical Specs: Black plastic with a matte finish, designed for the right side of vehicle. Approximate shipping dimensions are 11 x 14 9.

part #: 123390481 prices

  • $34.95-$39.99

specifications fueltanksysteme:

  • brand: Am General Llc
  • mpn: 12339048-1
  • type: Filler Neck
  • features: 0.281 In. Dia 3 Holes, On 4.500 In. Bolt Circle; W/flange
  • shape: Round
  • country of origin: United States
  • nsn: 2590-01-197-5446

seller fueltanksysteme:

  • rating: 99.2%
  • city: Macon, Georgia
  • # reviews: 10444

returns fueltanksysteme:

  • policy: Returns Accepted
  • time: 60 Days
  • paid by: Seller

offer fueltanksysteme:

  • sold: 0
  • started: April 29, 2026
  • best offers: True
  • options: Ship-to-home
  • availability: In Stock

shipping fueltanksysteme:

  • type: Calculated
  • transit: 3-9 Days
  • cost: $11.95
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage

general fueltanksysteme:

  • Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
  • condition: New other see details

payments fueltanksysteme:

  • wallet: Apple-pay
  • credit card: Diners-club
  • other
type: filler neck, features: 0.281 in. dia 3 holes, on 4.500 in. bolt circle; w/flange, shape: round, country of origin: united states, nsn: 2590-01-197-5446,
category: auto parts > car truck parts accessories > air fuel delivery > fuel tanks filler necks, sku: 24080833428298793,
Am General Llc 12339048-1 Is Similar To:
fueltanksysteme logo
4 offers $34.95–$39.99 USD
  • New other (see details). Offer #1 priced at $34.95 + $11.95 shipping estimate = $46.90* total. Alternate Part Numbers: 12339048, 5575859, 01-197-5446, 123390481.+$11.95 shipping
  • New. Offer #2 priced at $39.99 + $12.99 shipping estimate = $52.98* total. PB Sales, Inc.+$12.99 shipping
  • New. Offer #3 priced at $38.95 + $12.50 shipping estimate = $51.45* total. +$12.50 shipping
  • New. Offer #4 priced at $109.95 + $18.95 shipping estimate = $128.90* total. Side marker light housing x 2 12338709 NSN 6220-01-200-0897.+$18.95 shipping

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