21405511 Tube | Genuine Volvo Penta Part

🔧 Product Description

Genuine tube used in the cylinder-head, oil-filler and crankcase-ventilation assembly of Volvo Penta 5.0-litre and 5.7-litre V8 petrol marine engines. It works with the oil filler cap, O-ring, PCV valve, grommets and breather hoses to provide the original filler and ventilation route.

🚤 Compatibility

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

Full model list at the end of this description.

⚙️ Key Features

• GM-based 5.0L and 5.7L V8 petrol-engine application
• Cylinder-head breather and oil-filler system component
• Factory tube diameter, length and connection geometry
• Used with oil filler cap 3854008
• Interfaces with PCV valve 3861989 and related hoses
• Designed for oil vapour, engine heat and vibration

🔌 Function

The tube provides the designed oil-filling and crankcase-breather path at the cylinder head and helps route oil vapour through the PCV system.

⚠️ Common Signs of Failure

• Oil leakage around the tube or O-ring
• Cracked or corroded tube
• Loose oil filler cap
• Oil mist around breather connections
• Vacuum leak or unstable idle caused by a damaged PCV connection

🛠️ Service Notes

• Fit the tube so it reaches both connections without being sprung into place — a tube pulled into line loads its ends and cracks, usually at a bend or a joint
• Renew the sealing washers, O-rings or gaskets at every connection rather than reusing them, and start each union by hand so you can feel that the thread and seating face are properly engaged before tightening
• Keep the bore clean: cap or plug both ends until the moment of fitting, and never blow debris through a tube into the component it feeds
• Support the tube in its original clips and brackets — an unsupported run will fatigue from engine vibration even though it sealed perfectly when new
• Do not straighten, re-bend or patch a damaged tube; its shape is what gives the correct stress-free fit, and tighten unions only to the figure in the workshop manual for your engine

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3853546 - Related hose
• 3854008 - Oil filler cap
• 925063 - O-ring
• 3862296 - Grommet
• 3861989 - PCV valve
• 3858989 - Breather hose
• 3852103 - Grommet
• 3852104 - Elbow
• 21338270 - Lifting eyes
• 21338268 - Lifting eyes
• 21573817 - Bracket

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta V8-270-C-B, V8-270-CE-B, V8-300-A, V8-300-E-A, V8-300-B, V8-300-E-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-A, V8-320-E-A, V8-320-B, V8-320-E-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-A, V8-270-E-A, V8-270-B, V8-270-E-B, V8-270-C-A, V8-270-CE-A
• Volvo Penta 5.7GXi-320-R, 5.7GXiE-320-R, 5.7GXiC-320-R, 5.7GXiCE-320-R, 5.7GXiC-P, 5.7GXiCE-P, 5.7GXiE-P, 5.7GXi-P, 5.7GiE-300-P, 5.7Gi-300-P, 5.7Gi-300-R, 5.7GiE-300-R, 5.7GiC-300-P, 5.7GiCE-300-P, 5.7GiC-300-R, 5.7GiCE-300-R, 5.0GiC-225-S, 5.0GiCE-225-S, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXi-270-R, 5.0GXiE-270-R, 5.0GXiC-270-R, 5.0GXiCE-270-R, 5.0GXiE-P, 5.0GXi-P