Overview
For the Cessna 525B CitationJet CJ3, the Cessna Fuel Quantity Transmitter (P/N 4789020-6) is a critical component within the aircraft's fuel indicating system. This device is a capacitance-type probe responsible for accurately measuring the fuel level within the aircraft's fuel tanks and transmitting this data to the cockpit fuel gauges and potentially to the FADEC or other avionic systems. Its primary role is to provide pilots with precise, real-time information regarding available fuel, which is essential for flight planning, fuel management, and ensuring safe operations. The 4789020-6 sensor is an integral part of the fuel management system, converting the physical presence of fuel into an electrical signal that reflects the volume remaining.
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: 4789020-6
- Part#: 4789020-6
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
