21721VB800 Nissan TANK ASSY-RADIATOR RESERVOIR, Price: 54.58$, Weight: 0.696kg


Make Number Name Availability Weight, kg Ship in, Days Price

Nissan

21721VB800

TANK ASSY-RADIATOR RESERVOIR

12

0.696

 Dispatch 24h

54.58$

 

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Nissan
21721VB800 
TANK ASSY-RADIATOR RESERVOIR
12
0.696
2-3
45.48$
 

Compatibility

Body StyleEngineVehicle GradeMarketModelModel Year FromModel Year ToDiagram
WAGONZD30DDTIADEurope (LHD)Y6102.200010.2002 View
Body StyleEngineVehicle GradeMarketModelModel Year FromModel Year ToDiagram
WAGONZD30DDTIADGeneral/Asia (RHD)Y6103.200012.2009 View
Body StyleEngineVehicle GradeMarketModelModel Year FromModel Year ToDiagram
PICKUPTD42TISTDAustralia (RHD)TY6112.200208.2007 View

Radiator Coolant Expansion Tank for Nissan SUVs

This coolant reservoir keeps your engine temperature under control by managing thermal expansion and recovery of antifreeze. As the engine heats, coolant expands into the bottle; as it cools, fluid is drawn back to the radiator. The sealed system stays pressurized, air is purged, and components like the water pump and heater core last longer. Perfect for daily use, towing, and steep off‑road climbs ❄️

How it works

A hose links the radiator neck to the overflow bottle. When pressure rises, excess coolant flows in; when vacuum forms during cooldown, the bottle returns fluid through the same line. The translucent body and MIN/MAX marks make checks fast. Durable, heat‑resistant plastic and reinforced nipples resist vibration and UV.

What happens if it fails

Cracks or a weak cap cause leaks, boiling over, and air pockets. Signs include frequent top‑ups, sweet smell, white crust near the bottle, temperature spikes on hills, weak cabin heat, and gurgling. Running low can overheat the engine, warp the head, or blow a gasket—expensive damage ⚠️

Install tips

Direct fit. Move the hose, bracket, and cap, fill with the correct coolant, and bleed air. Inspect hoses and clamps; replace if brittle. Keep the level between marks.

Compatibility

  • Safari
  • Safari Pick Up
  • Patrol