21460721 Fuel Filter Housing | Genuine Volvo Penta Part

🔧 Product Description

A genuine filter head and housing supporting the assigned diesel fuel-filter element, fuel connections and pressure-control components.

⚙️ Key Features

• Precision fuel passages and sealing faces
• Supports the specified filter element
• Correct threaded fuel connections
• Replaces earlier housing 20523099

🔌 Function

The housing routes fuel through the filter element and provides mounting points for the associated connections and valves.

⚠️ Common Signs of Failure

• Damaged filter threads
• Cracked housing
• Corroded sealing surface
• Hard starting or loss of fuel prime

🛠️ Service Notes

• Work scrupulously clean — anything you let into the housing goes straight to the injection equipment, which is the most expensive part of the system
• Clean the sealing faces and renew every O-ring and sealing washer that is disturbed, lubricating rubber seals with clean fuel or oil so they slide rather than roll
• Support the housing so pipe unions are not strained, and tighten unions and fixings to the workshop manual figures for your engine; fuel unions seal on the cone, not on force
• Prime and vent afterwards — pump with the hand pump or lift-pump lever until firm resistance is felt and fuel comes through free of bubbles, and confirm the return is flowing before cranking
• Check for weeps with the system primed, and again with the engine running and warm; drain and inspect any water trap in the housing before you finish

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21460721 → Supersedes 20523099

OEM / Related Numbers

• 20523099 earlier number superseded by this part

📦 Condition

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