3581531 Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta gear from the Fuel System group, weighing 1.377 kg and listed for 31 applications across TAMD, AD, D, TMD, KAMD and KAD series engines. It supersedes part number 838657.

🚤 Compatibility

• Engine Family: TAMD, AD, D, TMD, KAMD, KAD

Full model list at the end of this description.

⚙️ Key Features

• 1.377 kg
• Supersedes 838657
• 31 applications across six engine series

🔌 Function

Transmits drive to the injection pump at the correct timing ratio.

⚠️ Common Signs of Failure

• Whine from the gear train varying with engine speed
• Tooth flank pitting, spalling or chipping
• Excessive backlash
• Injection timing drifting from worn teeth
• Metallic debris on the magnetic drain plug

🛠️ Service Notes

• Set backlash to specification and check injection timing after assembly
• Check the meshing gear for matching damage — wear is shared

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3581531 → Supersedes 838657

OEM / Related Numbers

• 838657 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S
• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta TAMD41H-A, TAMD41H-B, TAMD41P-A
• Volvo Penta AD31L-A, AD31P-A
• Volvo Penta AD41L-A, AD41P-A
• Volvo Penta D41L-A
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAD42P-A
• Volvo Penta KAD43P-A
• Volvo Penta KAMD300-A
• Volvo Penta KAMD42P-A
• Volvo Penta TAMD42WJ-A
• Volvo Penta TMD31L-A
• Volvo Penta TMD41L-A