GMB C680 Mechanical Fuel Tempest Air Pump 18-6 3.5L L6

( Brand: Gmb ), ( Type: Mechanical Fuel Pump ), ( Manufacturer Part Number: SX-DDXD 1965 1964 AIR DELIVERY PUMPS ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C680 18-6 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Pumps ), ( Compatible Model: Tempest ), ( Compatible Year: 1965 1964 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gmb Mechanical Fuel Pump )

Review GMB 18-6 Mechanical Fuel Pump Pontiac Tempest 3.5l L6 Air Delivery Gc fits 1964–1965

The GMB C680 18-6 mechanical fuel pump is a high-performance replacement component designed specifically for the 1964-1965 Pontiac Tempest 3.5L L6 engines with an air carburetor. This fuel pump delivers reliable fuel pressure to ensure smooth engine operation, making it an excellent choice for restoration projects, daily drivers, or high-performance applications.

The GMB C680 18-6 mechanical fuel pump features a robust design with a durable cast aluminum housing. The pump's internal components include a heavy-duty, precision-machined cam and a large, 18-tooth drive gear with six replaceable fuel element screens. This design allows for increased fuel flow and improved filtration, ensuring clean fuel reaches the carburetor for optimal engine performance.

The pump's mechanical design eliminates the need for an electrical fuel pump relay or an expensive wiring harness, making it a cost-effective and straightforward solution for fuel system upgrades. Additionally, the GMB C680 18-6 mechanical fuel pump is compatible with standard fuel lines and fuel filters, making installation a breeze.

The GMB C680 18-6 mechanical fuel pump is designed and manufactured to meet or exceed OE specifications, ensuring a perfect fit and reliable operation. Each pump undergoes rigorous testing to ensure it meets stringent quality standards. Additionally, GMB offers a one-year warranty against defects in materials and workmanship, providing peace of mind to customers.

In summary, the GMB C680 18-6 mechanical fuel pump is a top-quality, reliable, and cost-effective solution for 1964-1965 Pontiac Tempest 3.5L L6 engines with air carburetors. Its robust design, increased fuel flow, and improved filtration make it an excellent choice for restoration projects, daily drivers, or high-performance applications. With its easy installation and one-year warranty, the GMB C680 18-6 mechanical fuel pump is a wise investment for any Pontiac Tempest enthusiast.

Buying a GMB C680 18-6 mechanical fuel pump for a 1964-1965 Pontiac Tempest with a 3.5L L6 engine can be a suitable solution for those experiencing fuel delivery issues. Here are some pros and cons to consider before making a purchase.

1. Mechanical Design: This fuel pump is a mechanical design, which can be more reliable than electrical pumps as they have fewer components that can fail.

2. Easy Installation: The mechanical fuel pump is usually easier to install than an electrical pump since it does not require wiring.

3. Durability: Mechanical fuel pumps, in general, are known for their durability and longevity as they have fewer moving parts compared to electrical pumps.

4. Cost-Effective: Mechanical fuel pumps are generally less expensive than their electrical counterparts.

1. Limited Fuel Pressure: Mechanical fuel pumps cannot provide the same fuel pressure as an electrical pump. As a result, they might not be suitable for high-performance applications.

2. Loud Operation: Mechanical fuel pumps can be loud during operation, which might not be desirable for all users.

3. Limited Availability: Finding a mechanical fuel pump specifically for a 1964-1965 Pontiac Tempest with a 3.5L L6 engine might be challenging, as they are less common than electrical pumps.

Considering the pros and cons, a GMB C680 18-6 mechanical fuel pump can be an appropriate choice for a 1964-1965 Pontiac Tempest with a 3.5L L6 engine. Its mechanical design offers reliability and ease of installation, and its cost-effectiveness is an added advantage. However, its limited fuel pressure and loud operation might not be suitable for all users.

If you are experiencing fuel delivery issues with your 1964-1965 Pontiac Tempest and prefer a mechanical fuel pump due to its reliability and ease of installation, the GMB C680 18-6 mechanical fuel pump is a good option to consider. You can purchase it from reputable auto parts retailers or contact GMB directly for availability.

Details:

GMB Mechanical Fuel Pump for 1964-1965 Pontiac Tempest 3.5L L6 Air Delivery gc: Status: In Stock.

specifications pumpunite:

• for makes: Pontiac
• for years: 1964-1965
• brand: Gmb
• type: Mechanical Fuel Pump
• manufacturer part number: SX-DDXD 1965 1964 AIR DELIVERY PUMPS
• manufacturer warranty: 1 Year
• interchange part number: C680 18-6
• placement on vehicle: Air Fuel Delivery Fuel Pumps
• compatible model: Tempest
• compatible year: 1965 1964
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gmb Mechanical Fuel Pump

general pumpunite:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Pumps Sending Units

offer pumpunite:

• options: Ship-to-home
• quantity: 2
• sold: 0
• availability: In Stock
• started: October 14, 2025

returns pumpunite:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

shipping pumpunite:

• cost: $0.00
• service: Standard, Expedited
• type: Fixed
• class: Standard, Expedited
• transit: 2-6 Days

payments pumpunite:

• credit card: Diners-club
• wallet: Paypal
• other

seller pumpunite:

• # reviews: 580081
• rating: 99.0%
• city: Indianapolis, Indiana

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