21656854 Air Hose | Genuine Volvo Penta Part

🔧 Product Description

Warm-air hose for the Volvo Penta cabin air heater in the 50 mm size, sold per metre, weighing 0.126 kg. Three per-metre hose sizes are listed - 50 mm here, 55 mm as 21656855 and 60 mm as 21656856 - and a separate 80 mm air-intake hose, 21656857, serves the intake side. Because the hose is sold by the metre, the run length is set when you order rather than by the part number.

⚙️ Key Features

• Warm-air hose, 50 mm
• Sold per metre
• 0.126 kg
• 55 mm is 21656855, 60 mm is 21656856, and the 80 mm intake hose is 21656857
• Order by bore - the published weights across this set do not rise with bore, so they are no guide to size
• Outlet diameter: 50 mm
• Supply: per metre
• Fits: Volvo Penta air heaters

🔌 Function

Carries warm air from the heater outlet to a cabin nozzle along a flexible 50 mm route.

⚠️ Common Signs of Failure

• Warm air weak at the far outlet while nearer ones blow normally
• Hose collapsed, kinked or crushed where it passes a bulkhead
• Split or perforation with warm air escaping into a locker
• Hose pulled off a nozzle or connector spigot
• Hose gone hard and brittle where it runs close to the engine

🛠️ Service Notes

• Measure the full run and order the metres you need, including slack for bends
• A 50 mm branch needs the 50 mm nozzle 21656851 to match

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21656854 → Supersedes 41103309

OEM / Related Numbers

• 41103309 earlier number superseded by this part
• Related 55 mm connection kit: 41103317
• Related 80 mm Y-connector: 41103316

Other-Brand OEM Numbers

• VOE21656854

Aftermarket / Verified Equivalents

• Related heater switch: 41103307
• Related flexible hose kit: 41103329

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging