Heater Hose Quick Connector — OE 9250001G0B

This precision coupler links the engine coolant line to the cabin heater core. It keeps the circuit sealed under pressure so you get steady cabin heat and fast defogging ❄️. Built for tight spaces and repeat heat cycles, it maintains a leak-free path for coolant and protects the system from air ingress.

Why you need it

Aged connectors crack, warp, or lose their O-ring elasticity. Replacing them restores correct coolant flow, prevents leaks, and keeps your pickup reliable on workdays and trails .

How it works

The body uses a snap/lock interface with an internal seal. Push-fit design creates even compression on the O-ring, guiding hot coolant to the heater core and back to the engine. Materials are coolant- and heat-resistant for long service life.

Signs of failure

Coolant smell, low cabin heat, visible drips, steam, or sudden temperature spikes. Left unchecked, loss of coolant may cause overheating and head gasket damage .

Install tips

• Depressurize and cool the system
• Lightly lube O-ring with fresh coolant
• Push until you feel a firm “click”
• Top up and bleed air; recheck for leaks

• Truck
• Np300
• King Cab
• Nissan Truck Zn
• Np300 F/Sbs,Med