PRIMER (P/N 451-100) - As Removed

The 451-100 is a fuel primer for carbureted aircraft piston engines, injecting fuel directly into intake ports or the induction manifold during cold starts. This component draws fuel from the gascolator through dedicated priming lines to nozzles positioned for effective fuel delivery before engine ignition. Primers are essential on carbureted engines; fuel-injected aircraft typically do not require this system.

Operation involves pulling the primer knob to inject fuel, then locking it after each use. Installation and operation must follow the aircraft's Pilot Operating Handbook (POH) and Aircraft Maintenance Manual (AMM) procedures.

What is the PRIMER (P/N 451-100)?

The 451-100 is a fuel primer for carbureted aircraft piston engines, injecting fuel directly into intake ports or the induction manifold during cold starts. This component draws fuel from the gascolator through dedicated priming lines to nozzles positioned for effective fuel delivery before engine ignition.

Is the 451-100 compatible with AVGAS and Jet-A fuels?

Fuel system components are designed for specific fuel types per their engineering specifications. The PRIMER should be verified against your aircraft's fuel system requirements. Currently available in: As Removed. Contact us for fuel compatibility details.

Does the 451-100 require companion seals or gaskets for installation?

Many fuel system components require new gaskets, O-rings, or seals during installation. Check your aircraft maintenance manual for the PRIMER installation requirements. We stock related sealing components and can help identify companion parts.

Are there shipping restrictions for the 451-100?

Most fuel system hardware ships via standard methods. Certain items containing fuel residue may require hazmat shipping procedures. We handle all packaging and shipping compliance. Same-day processing available for in-stock items.