Pressure Pump for Field Install & Radio Service Kit

The Motorola Pressure Pump for Field Install Kit (NTN4265A) is a specialized service and maintenance tool designed to help technicians locate air and water seal leaks in compatible Motorola portable two-way radios. Used as part of Motorola's radio immersibility testing procedures, the pressure pump allows service personnel to identify potential leakage points after radio repair, disassembly, or seal replacement.

The NTN4265A kit includes a manual pressure pump with an integrated pressure gauge and pressure hose. During testing, the pump introduces controlled positive pressure into the radio chassis while the gauge allows the technician to monitor the test. If a radio fails its initial vacuum integrity test, the pressure pump can be used as a troubleshooting tool to help determine where the enclosure is leaking.

Motorola designed the NTN4265A for professional radio service environments where maintaining the original water- and dust-resistant integrity of a portable radio is critical. This is particularly important after a radio has been opened for component replacement, internal repairs, or other service procedures that could disturb housing seals, O-rings, vents, or other sealing components.

For compatible MOTOTRBO radios, the pressure hose connects to the radio chassis using the appropriate connector fitting and fitting seal. Motorola service documentation identifies 5871134M01 as the Connector Fitting and 3271133M01 as the Fitting Seal for a number of supported platforms. These components may need to be ordered separately and should be matched to the specific radio being serviced.

The NTN4265A complements Motorola's NLN9839 Vacuum Pump Kit. The vacuum pump is used to determine whether the radio maintains a stable vacuum and is properly sealed, while the NTN4265A pressure pump is used to help locate the source of leakage when troubleshooting is required.

Whether used by an authorized radio service center, communications shop, fleet maintenance operation, or qualified radio technician, the Motorola NTN4265A provides the specialized equipment needed to perform pressure-based leak diagnostics on supported Motorola portable radios.

Key Features

• Genuine Motorola Solutions Service Tool

• Motorola Part Number: NTN4265A

• Pressure Pump for Field Install / Service Applications

• Designed to locate leakage points in compatible Motorola portable radios

• Used for radio immersibility and enclosure integrity testing

• Manual pressure pump

• Integrated pressure gauge

• Pressure hose included

• Provides controlled positive pressure for leak troubleshooting

• Useful following radio disassembly or repair

• Helps technicians identify compromised seals and potential water-entry points

• Complements the Motorola NLN9839 Vacuum Pump Kit

• Used with appropriate radio-specific connector fitting and seal

• Professional radio service and maintenance equipment

• Compatible with multiple Motorola MOTOTRBO, APX, XTS and other supported portable radio platforms

Compatibility

The Motorola NTN4265A Pressure Pump Kit is documented for use in the service procedures of numerous Motorola portable radio platforms, including select:

• Motorola MOTOTRBO R5 Series

• Motorola MOTOTRBO R7 Series

• Motorola MOTOTRBO XPR Series

• Motorola MOTOTRBO DP Series

• Motorola APX Series

• Motorola SRX Series

• Motorola ASTRO XTS Series

• Additional Motorola portable radios supporting pressure-based immersibility testing

Required fittings and testing procedures vary by radio platform. Always consult the appropriate Motorola service manual before performing pressure or immersibility testing.

Ideal Applications

The Motorola NTN4265A Pressure Pump Kit is ideal for:

• Motorola Radio Service Centers

• Two-Way Radio Repair Shops

• Professional Radio Technicians

• Fleet Radio Maintenance

• Portable Radio Repair

• Waterproofing & Seal Testing

• Leak Detection

• Post-Repair Radio Testing

• Public Safety Radio Maintenance

• Commercial Radio Service Departments

• Communications Equipment Technicians

Why Buy from Delmarva Communications?

Delmarva Communications provides genuine Motorola Solutions two-way radios, accessories, and complete communication solutions backed by expert support. Our experienced team can assist with radio programming, system design, FCC licensing guidance, fleet management, and ongoing technical support to help your organization maximize the performance and reliability of your communication system.