873611 Relay | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 24 V, 20 A relay from the Other Electrical Equipment group, weighing 0.034 kg and listed for 38 applications across the TAMD, AD, D and TMD ranges. It replaces 837878 and 870451. The voltage and current rating are what identify it, so check both against the relay you are replacing.

🚤 Compatibility

• Engine Family: TAMD, AD, D, TMD

Full model list at the end of this description.

⚙️ Key Features

• 24 V, 20 A rating
• 0.034 kg
• Listed for 38 applications
• Covers TAMD, AD, D and TMD engines
• Replaces 837878 and 870451

🔌 Function

Switches a heavy circuit through its contacts under the control of a light circuit at its coil.

⚠️ Common Signs of Failure

• Circuit dead with no click heard from the relay
• Relay clicking but the load not coming on
• Chattering or buzzing from the relay
• Terminals discoloured, heat-marked or melted
• Circuit that works when the relay is tapped

🛠️ Service Notes

• Check the coil is being fed and earthed before replacing the relay
• Match both figures — 24 V and 20 A — against the old unit
• Heat-marked terminals mean the base or the connector should be checked as well as the relay

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 873611 → Supersedes 837878 → Supersedes 239883

OEM / Related Numbers

• 870451 earlier number superseded by this part
• 837878 earlier number superseded by this part
• 239883 earlier number superseded by this part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, TAMD31D
• Volvo Penta TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P
• Volvo Penta AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta TAMD122A, TAMD122D, TAMD122P-B, TAMD122P-C
• Volvo Penta TAMD74P-A, TAMD74A, TAMD74C-A, TAMD74L-A
• Volvo Penta TAMD63L-A, TAMD63P-A
• Volvo Penta TMD31D, TMD31L-A
• Volvo Penta TMD41D, TMD41L-A
• Volvo Penta AD41D
• Volvo Penta D41D
• Volvo Penta TAMD102A
• Volvo Penta TAMD103A
• Volvo Penta TAMD121D
• Volvo Penta TAMD73P-A
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A