3609088-1 - Bombardier Aerospace OEM Oil Filter

3609088-1 – Bombardier Aerospace OEM Oil Filter

Available now on the Airparts.aero Marketplace.

Overview

The 3609088-1 is a genuine OEM, flight-critical oil filter element, engineered by Honeywell for the lubrication systems of their highly successful GTCP36 series of Auxiliary Power Units (APUs). This is not a standard filter; it is a high-performance, micronic filter assembly specified by Bombardier for use on their Challenger and Global series of business jets. Its purpose is to provide the ultimate protection for the APU's high-speed bearings, gears, and other precision-tolerance components by capturing and retaining microscopic contaminants from the circulating turbine oil. As a genuine OEM component, it guarantees the correct filtration efficiency and bypass settings required for this demanding application.

Key Features

• High-Efficiency Synthetic Media: Utilizes a proprietary, high-capacity synthetic filter media, engineered to capture microscopic contaminants (metal particles from wear, carbon deposits, coking byproducts) down to a very fine micron level, ensuring the highest degree of oil cleanliness.
• Integrated Bypass Valve: Features an integral, precisely calibrated bypass valve. This critical safety feature ensures that a continuous flow of oil is supplied to the APU's bearings, even in the event that the filter element becomes completely clogged, preventing oil starvation.
• Robust Canister & Element Construction: The filter element is housed in a heavy-duty steel canister and is supported by a strong internal core. This construction is designed to withstand the high pressures, pressure impulses, and intense vibration of the APU's lubrication system without collapsing or failing.
• Superior Dirt-Holding Capacity: The full-pleat, depth-loading media design provides a massive surface area, allowing it to hold a large volume of contaminants before reaching its bypass pressure, ensuring effective filtration throughout its designated service interval.
• Genuine OEM Part: As a genuine part from the Bombardier/Honeywell supply chain, it guarantees perfect fitment, certified performance, and the correct filtration media required by the APU's original Type Certificate.

Technical Specifications

• Part Number: 3609088-1
• Component Type: APU Oil Filter Element Assembly
• OEM Manufacturer: Honeywell Aerospace
• Primary Function: Filters the main APU oil supply.
• Filter Media: High-Efficiency Pleated Synthetic Media
• Construction: Spin-On Steel Canister with integrated bypass valve.
• Certification: FAA / TCCA Production Approval

Aircraft Compatibility

The 3609088-1 is the standard oil filter for some of the most common APUs installed in the world's leading long-range business jets.

• Primary APU Models:
  • Honeywell GTCP36-100 & GTCP36-150 Series
• Common Bombardier Platforms:
• • Challenger 601-3A/3R
  • Learjet 40
  • Learjet 45 / 45XR
  • Learjet 75
• Other Platforms:
  • Dassault Falcon: 900, 2000
  • Gulfstream: GIV, GV, G450, G550

Applications

The 3609088-1 is a critical component for APU health and preventative maintenance:

• APU Lubrication System: The primary defense against circulating contaminants that cause wear on the high-speed (often >40,000 RPM) bearings and gears within the APU.
• Scheduled Maintenance: A mandatory replacement item at every scheduled APU service interval.
• Engine Health Monitoring: After removal, the filter is typically cut open and the media is inspected for metal particles. This "chip check" is one of the most important diagnostic tools for detecting abnormal internal APU wear long before a major failure occurs.

Why Choose 3609088-1?

The Auxiliary Power Unit is a high-value, complex turbine engine that is essential for the dispatch reliability of a modern business jet. Its lubrication system is its lifeblood. A failure of this system due to contamination can lead to an in-flight shutdown and an extremely costly repair. Using a genuine OEM 3609088-1 filter is the only way to ensure the part has the certified filtration efficiency, correct bypass valve setting, and structural integrity to protect your APU as intended by its designers.

Order Your 3609088-1 Oil Filters Now

Protect your high-value APU with the certified quality and performance of a genuine OEM oil filter. Visit Airparts.aero to order your 3609088-1 filter elements today.

The 3609088-1 filter is designed to protect the extremely close-tolerance, high-speed components of an APU. The bearings in an APU's rotating group spin at tens of thousands of RPM, and the hydrodynamic oil film that supports them can be mere microns thick. A single hard particle of contamination larger than this film thickness can bridge the gap, causing a metal-to-metal contact that leads to spalling and rapid bearing failure. The micronic filtration media of the 3609088-1 is specifically designed to remove these damaging particles, ensuring that only ultra-clean oil reaches the bearings, which is fundamental to the APU achieving its designed Time Between Overhaul (TBO).

Note: This is a flight-critical engine component. Installation must be performed by a certified A&P or AME mechanic in strict accordance with the current Bombardier or aircraft maintenance manual. The old filter must be properly cut and inspected as part of any maintenance procedure. Always verify the part number for your specific APU and aircraft serial number.