21569077 Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 21569077 - Part Number: Drive-Housing Support Ring A genuine structural ring used in selected Volvo Penta IPS or sterndrive gear-housing assemblies. It supports and locates the adjoining bearing, seal or housing components and must maintain precise concentricity within the drive.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 260-480 HP
• Year Range: Approximately 2008 - 2020 production-era applications

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta drive-housing ring
• Precision-machined locating and support surfaces
• Used with the associated bearing and sealing components
• Designed for submerged marine-drive service
• Direct replacement for a worn, corroded or damaged original ring
• Engine type: Volvo Penta IPS or sterndrive gear housing

🔌 Function

Locates and supports the adjoining shaft, bearing or sealing components so the drive maintains correct alignment and lubricant containment.

⚠️ Common Signs of Failure

• Shaft play or abnormal gear noise
• Seal leakage caused by loss of concentricity
• Corrosion or pitting on the support surfaces
• Bearing movement or premature wear
• Damage from incorrect removal or installation

🛠️ Service Notes

• Renew rather than reuse: rings of this kind seal or retain by being sprung or compressed into place and take a permanent set once fitted
• Clean the groove, register or bore the ring sits in and remove any burr or old sealing residue before fitting — debris in the groove stops a ring seating and is a common cause of a repeat leak
• Open or compress the ring only as far as it needs to go on; overstretching or twisting it during fitting distorts it permanently
• Check the ring is fully seated all the way round its groove or register, and the right way round where its faces differ, before closing the assembly up

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21569077 → Supersedes 21568866 → Supersedes 3809848

OEM / Related Numbers

• 21568866 earlier number superseded by this part
• 3809848 earlier number superseded by this part
• 3842290 - sealing-ring kit
• 3842288 - sealing ring
• 3842286 - sealing ring
• 184850 - needle-roller bushing
• 3593981 - anode kit
• 3593881 - anode
• 8171169 - magnet
• 3847669 - plug
• 949656 - O-ring

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-D, D6-310D-C, D6-310D-E, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C
• Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F
• Volvo Penta IPS-A, IPS-B, IPS-C, IPS-D, IPS-E, IPS-F
• Volvo Penta 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q
• Volvo Penta IPS10-A, IPS10-B