21106506 Hose | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta moulded hose in the V8-270/300/320 C and CE seawater system from the thermostat housing toward the exhaust elbows. The hose is catalogued at its own position within the group containing 21106502, 21106504 and 21106508. Its short formed geometry and connection angle ensure the thermostat-housing outlet is not side-loaded.

🚤 Compatibility

• Engine Family: V
• HP Range: 225-320 HP

Full model list at the end of this description.

⚙️ Key Features

• Short formed seawater hose for the V8 thermostat-housing assembly
• Connection angle aligns the hose without twisting the thermostat housing
• Marine reinforced construction tolerates warm raw water and engine vibration
• Uses the specified hose clamps in the exhaust-cooling circuit
• Documented across V8-270, V8-300 and V8-320 C/CE configurations
• Engine type: Volvo Penta V8 gasoline marine engine seawater-cooling system

🔌 Function

Transfers raw cooling water through the assigned thermostat-housing branch while absorbing engine vibration and maintaining a sealed connection.

⚠️ Common Signs of Failure

• Raw-water leakage around the clamp positions
• Cracking at the formed bend
• Hose collapse or internal blockage
• Heat damage from incorrect routing
• Reduced exhaust cooling and elevated elbow temperature

🛠️ Service Notes

• Fit hoses only to clean, sound spigots — take off old rubber, scale and corrosion, and renew the spigot or pipe if it is pitted, because no clamp will seal a rough sealing face
• Push the hose fully home so the clamp sits behind the bead or barb rather than over the end of the spigot, and fit new clamps whenever a hose is renewed
• Let the hose follow its natural bend with no kinks and no tension on either connection, clear of hot surfaces and moving parts, with chafe protection wherever it passes a bracket, edge or bulkhead
• Use the correct grade of hose for the duty, and clamp to the standard the installation demands — twin clamps are normal practice on seawater and fuel connections below the waterline
• Refill, vent and run the engine, then check every joint hot and cold and recheck the clamps after the first running period as the hose beds down

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21106502 - companion hoses
• 21106504 - companion hoses
• 21106508 - companion hoses
• 21114718 - companion hoses
• 3589553 - thermostat housing
• 3587597 - thermostat
• 3863439 - hose clamps used in the assembly

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 5.7GXiC-320-R, 5.7GXiCE-320-R, 5.7GXiC-J, 5.7GXiCE-J, 5.7GXiCE-M, 5.7GXiC-P, 5.7GXiCE-P, 5.7GiCE-300-M, 5.7GiC-300-J, 5.7GiCE-300-J, 5.7GiC-300-P, 5.7GiCE-300-P, 5.7GiC-300-R, 5.7GiCE-300-R, 5.0GiC-225-S, 5.0GiCE-225-S, 5.0GiC-J, 5.0GXiCE-J, 5.0GXiCE-M, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXiC-270-R, 5.0GXiCE-270-R, 5.0GXiC-J
• Volvo Penta V8-270-C-B, V8-270-CE-B, V8-300-C-A, V8-300-CE-A, V8-300-C-B, V8-320-C-B, V8-320-CE-B, V8-300-CE-B, V8-320-C-A, V8-320-CE-A, V8-225-C-A, V8-225-CE-A, V8-225-C-B, V8-225-CE-B, V8-270-C-A, V8-270-CE-A