Volvo Penta Cover 21904550

Volvo Penta 21904550 is a genuine OEM cover used in the engine air-filter / inlet-air assembly on applicable Volvo Penta diesel engines. In the referenced air-filter assembly, the cover is shown as position 13 alongside air filter 21196916, air-filter insert 21196919, pressure-drop indicator 3828765, bracket 21307146, and rubber collar 21254124.

Key Features

• Genuine Volvo Penta OEM air-filter cover
• OEM part number 21904550
• Used within the engine inlet-air / air-cleaner assembly
• Protects and completes the applicable air-filter installation
• Current replacement reference 22825290
• Replacement cover 22825290 has a listed weight of approximately 1.3 kg

Engine Compatibility

Part 21904550 is associated with the Volvo Penta air-filter system using air-cleaner assembly 21196916. That air-filter family is cataloged across D12 and D16 marine diesel applications including:

• D12C-A MP
• D12D-A MG / MH / MP
• D12D-B MH / MP
• D12D-C MH / MP
• D12D-D MP
• D12D-E MG / MH / MP
• D12D-F MP
• D12D-G MH / MP
• D12D-H MP
• D16C-A MG / MH
• D16C-B MH
• D16C-C MH
• D16C-D MH

Because air-cleaner configurations can change by engine version and production range, confirm 21904550 / 22825290 against the exact engine serial number before ordering.

Serial Number Fitment Notice

Verify the engine serial number and air-filter assembly before installation. Volvo Penta D12 and D16 engines can use different early/late air-cleaner configurations, filter inserts, brackets, collars, and covers even within the same engine family.

When This Part Needs Replacement

Replace the cover if it is cracked, distorted, badly corroded, damaged at the mounting points, or can no longer be secured correctly over the air-filter assembly. A damaged or poorly fitting cover should also prompt inspection of the filter housing, bracket, collar, and mounting hardware.

Installation Notes

The applicable assembly shows 21904550 used with components including:

• 21196916 Air filter
• 21196919 Air-filter insert
• 3828765 Pressure-drop indicator
• 21307146 Bracket
• 21254124 Rubber collar
• 997641 Shut-off cock
• 984752 Flange screw

Inspect the air-filter element and mounting components while the cover is removed. Make sure the completed air-cleaner assembly is secure and properly sealed before returning the engine to service.

Alternate/Superseded Part Numbers

• 21307660 Earlier Volvo Penta cover reference
• 21904550 Volvo Penta cover
• 22825290 Current replacement / superseding cover

Parts Desk Insight

This cover belongs to a specific Volvo Penta air-cleaner arrangement, so matching by shape alone can be misleading. The important checks are the air-filter assembly number, engine serial number, and whether the engine uses the applicable early or late air-cleaner configuration.