Weldon Pump — Precision Aerospace and Racing Pumping Systems

American Weldon Pump rotary vane and positive displacement fuel pumps engineered for general aviation aircraft, UAV fuel injection, and high-performance racing platforms.

18000 Series Aircraft Fuel Boost and Primary Pumps

Weldon 18000 series fuel pumps including 18021-A and 18026-A provide primary and boost pressure for general aviation aircraft. The positive displacement rotary vane units integrate relief valves. They carry FAA-PMA approvals and replace legacy Duke's 4140 pumps.

Series: 18000 (18021-A, 18026-A)
Type: positive displacement rotary vane
Application: boost and engine fuel feed
Approval: FAA-PMA / AS9100

8000 Series Continuous Fluid Transfer Pumps

Weldon 8000 series electric pumps including 8120 deliver continuous aviation fuel and coolant transfer. Designed with precision mechanical face seals, they maintain stable flow. The pumps operate in UAV fuel injection and avionics cooling loops.

Series: 8000 (model 8120)
Fluid: avgas, coolants, fluids
Seal type: mechanical face seal
Application: UAVs, thermal systems

8100 Series Continuous Duty Fuel and Coolant Transfer Pumps

Weldon 8100 series electric pumps including 8136-B and B8103-F are engineered for coolant and fuel circulation. The pumps incorporate precision mechanical face seals. These units operate in airborne avionics thermal management and UAV fuel loops.

Series: 8100 (8136-B, B8103-F)
Fluid: coolants, avgas, fluids
Seal type: mechanical face seal
Application: UAVs, thermal loops

Weldon Racing High-Flow Performance Fuel Pumps

The Weldon Racing lineup features EFI fuel pumps including 2015, 2035, and 2345-A. Machined from billet aircraft aluminum, they support outputs up to 4000+ HP. They are fully compatible with gasoline, methanol, and ethanol fuels.

Models: 2015, 2035, 2345-A, A16000
Output: 800 HP to 4000+ HP range
Construction: billet aircraft aluminum
Fuel compatibility: gas, methanol, E85

16000 Series Carbureted High-Flow Fuel Pumps

The Weldon 16000 series carbureted pump lineup includes 16120-A, 16250-A, and 16420-A for high-output engines. The pumps are CNC-machined from billet aluminum. They maintain stable delivery with gasoline and methanol racing fuels.

Series: 16000 (16120-A, 16250-A)
Rating: up to 1400+ HP
Body: billet aircraft aluminum
Fuel: gas, methanol, E85

Fuel Pressure Regulators and Bypass Relief Valves

Weldon bypass regulators including A2040 and A2046 maintain constant fuel rail differential pressure under boost. The system includes inline billet filters rated at 10 and 100 microns with serviceable elements. Relief valves protect the pump from cavitation.

Regulators: A2040, A2046, 2047
Filtration: 10 micron and 100 micron
Function: fuel rail pressure control
Valves: bypass, check, relief valves

Weldon Pump Replacement Parts and Overhaul Seal Kits

To support scheduled MRO of Weldon pumps, overhaul kits supply carbon rotor vanes, mechanical face seals, diaphragms, and O-rings. Motor brush assemblies and relief springs are available. Replacing worn elements restores original factory pressure specifications.

Components: carbon vanes, rotors
Seals: mechanical face, lip, O-rings
Electrical: brush assemblies, armatures
Kits: major overhaul and seal kits

Weldon Pump Heritage and Ohio Manufacturing Since 1942

Weldon Pump was founded in 1942 in Ohio under contracts to manufacture aircraft de-icing pumps for B-24 bombers. The plant conforms to ISO 9001 and AS9100 quality standards and holds FAA-PAH status. The Oakwood Village facility manufactures aviation and racing pumps.

Founded: 1942 in Ohio, USA
Headquarters: Oakwood Village, Ohio
Certifications: AS9100 / ISO 9001
Status: FAA Production Approval Holder

Design Principles of 18000 Series General Aviation Fuel Pumps

Weldon 18000 series positive displacement rotary vane pumps are engineered for primary engine feed and emergency boost in general aviation aircraft. The pump core integrates an eccentric hardened stator liner with precision sliding carbon vanes, generating smooth and continuous fuel delivery.

An internal pressure relief bypass valve stabilizes line pressure during altitude changes. FAA-PMA approvals ensure seamless replacement of legacy Duke's and Parker pumps across Cessna, Piper, and Beechcraft fleets.

Continuous Duty Fluid and Fuel Transfer on 8000 and 8100 Series

Weldon Pump 8000 and 8100 series electric pumps provide reliable continuous-duty circulation of aviation gasoline, jet fuel, and coolant fluids. Featuring precision mechanical face seals and fluorosilicone elastomers, they resist thermal degradation across extreme operating envelopes.

These units are widely utilized in heavy-fuel UAV propulsion systems, airborne thermal management loops, and specialized aerospace fluid handling.

Weldon Racing Extreme-Flow Fuel Systems for High-Output Engines

The Weldon Racing Pumps division manufactures billet aluminum electric fuel pumps designed to support engine outputs exceeding 4000 HP. The range includes 16000 series carbureted pumps and advanced EFI pumps such as 2015, 2035, 2345, and A16000.

All components undergo hard-coat MIL-SPEC anodizing to ensure chemical resistance when pumping aggressive racing fuels including methanol, ethanol E85, and nitromethane.

Precision Fuel Pressure Regulation and Anti-Cavitation Filtration

Weldon A2040 and A2046 bypass fuel pressure regulators deliver precise 1:1 manifold reference tracking to maintain stable differential injector pressure under boost.

Complementing the pumps, inline billet filter assemblies with 10-micron and 100-micron reusable stainless steel elements capture contaminants without restricting inlet flow, preventing vapor lock and protecting close-tolerance internal pumping elements.

Weldon Pump and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Weldon Pump and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.