20713791 Timing Gear Cover | Genuine Volvo Penta Part

🔧 Product Description

A genuine front timing-gear cover for Volvo Penta D12 engines. It replaces earlier cover 20512768, encloses the timing gear train and supports the specified seals and front-engine hardware.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Current cover reference replacing 20512768
• Related Volvo reference 3169649
• Machined sealing and mounting faces match the D12 timing-gear plate
• Encloses idler gears, hubs and thrust components against contamination
• Supports the front sealing arrangement and adjacent sealing strip
• Must be tightened in sequence to avoid cover distortion and gear-contact issues

🔌 Function

Encloses and protects the timing gears while supporting the engine's front sealing arrangement.

⚠️ Common Signs of Failure

• Engine oil leaks around the cover or front seal
• The cover is cracked or warped
• Mounting threads or sealing faces are damaged
• Timing gears contact the cover because of distortion
• Replacement is required after gear-train failure or impact

🛠️ Service Notes

• Remove all old gasket and sealant from both faces and check the cover is flat and undistorted before refitting
• Renew the crankshaft front seal while the cover is off, and fit the cover before the pulley or damper so the seal is centred on the shaft
• Where the joint is made with sealant rather than a gasket, use the type the manual specifies, lay an even bead and pull the cover down within the sealant's working time
• Locate the cover on its dowels and tighten the fixings evenly, in the sequence and to the figures in the workshop manual for your engine
• Check any timing mark or pointer on the cover lines up as it should, and look for oil weeps at the front of the engine after the first run

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20713791 → Supersedes 20512768 → Supersedes 3830196 → Supersedes 3169648

OEM / Related Numbers

• 20512768 earlier number superseded by this part
• 3830196 earlier number superseded by this part
• 3830195 earlier number superseded by this part
• 3169648 earlier number superseded by this part
• 3169649 - Related Volvo cover reference
• 8170561 - Timing-gear plate references
• 21383522 - Timing-gear plate references
• 20489341 - Related seal
• 3828662 - Related cover
• 8170193 - Related idler gears
• 8170195 - Related idler gears
• 8170197 - Related idler gears
• 8170219 - Related hubs
• 8170199 - Related hubs
• 8170220 - Related thrust washers
• 3184865 - Related thrust washers
• 3184868 - Related bearing shield
• 20714247 - Related sealing strip
• 3835799 - Related timing-gear cover

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D12C-A MP, D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
• Volvo Penta TAD1241GE, TAD1241VE, TAD1241-42VE
• Volvo Penta TAD1242GE, TAD1242VE
• Volvo Penta TAD1250VE, TAD1250-52VE
• Volvo Penta TAD1240GE
• Volvo Penta TAD1251VE
• Volvo Penta TAD1252VE
• Volvo Penta TWD1240VE