21356941 Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta V8 Catalyst Exhaust Cooling Hose - Part Number: 21356941

Genuine formed hose used in the water-jacketed exhaust-manifold and catalyst-elbow cooling circuit of selected Volvo Penta 5.0L and 5.7L V8 petrol marine engines. Part number 21356941 has a position-specific bend, length and diameter and must be fitted in its original hose location.

⚙️ Key Features

• Catalyst exhaust cooling-system hose

• Factory moulded bend and installed length

• Designed for raw water or coolant and exhaust-system heat

• Position-specific within the V8 manifold and elbow assembly

• Not interchangeable with adjacent hose numbers without diagram confirmation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21356941 - Current OEM part number

OEM / Related Numbers:

• 21356941

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Documented engine family:

• Volvo Penta 5.0GiCE and 5.0GXiCE catalyst engines

• Volvo Penta 5.7L catalyst petrol engines using hose 21356941

• Related V8-270 and V8-300 catalyst packages where the serial-specific cooling diagram lists this hose

• Confirm connection diameters, hose route, manifold height, port/starboard position and engine serial number

🔌 Function

The hose routes cooling water through the exhaust manifold, catalyst elbow or connected cooler passage and absorbs engine movement.

Common signs of failure:

• Water leakage

• Heat hardening or cracking

• Internal delamination or collapse

• Restricted exhaust cooling

• Overheated manifold or elbow

• Chafing against exhaust components

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging