21399023 Hose | Genuine Volvo Penta Part

🔧 Product Description

Formed seawater hose used in the hydraulic/power-steering oil-cooler circuit on specified Volvo Penta V6 and V8 gasoline engines. It connects the cooler into the engine raw-water plumbing with the correct bore, bend radius and length so water flow is maintained without kinking or contact with adjacent components.

🚤 Compatibility

• Engine Family: V
• HP Range: 200-320 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta formed cooling-water hose
• Used with hydraulic oil cooler 21399019
• Correct moulded bends for the gasoline-engine seawater circuit
• Designed for raw-water temperature, suction and pressure conditions
• Model-specific routing prevents kinking and abrasion
• Engine type: Volvo Penta gasoline V6/V8 marine engine with seawater-cooled hydraulic system

🔌 Function

Carries seawater to or from the hydraulic oil cooler so heat can be removed from the steering fluid before the water continues through the engine cooling circuit.

⚠️ Common Signs of Failure

• Water seepage, salt deposits or soft spots in the hose
• Cracking, swelling or delamination near the clamps
• Kinking or internal collapse restricting cooler water flow
• Abrasion from incorrect routing or missing supports
• Hydraulic-fluid overheating caused by reduced seawater circulation

🛠️ 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

• 21399019 - associated hydraulic / power-steering oil cooler

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• 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, 4.3Gi-200-R, 4.3GL-P, 4.3GXi-225-R, 4.3GXiE-225-R, 4.3GXi-P, 4.3GXiE-P, 4.3GXi-Q, 4.3GXiE-Q
• 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 V6-200-A, V6-225-A, V6-225-E-A