21504294 Control Tool | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta reference electrode, listed at 0.147 kg among the electronic-related tools and covering a wide span of engines, including the D1-13 to D1-30 range, the D11 and D12D families and the D13B and D13C marine engines. It is a measuring accessory rather than a fitted component.

⚙️ Key Features

• Reference electrode, 0.147 kg
• Listed for the D1-13 to D1-30 range and the D11, D12D and D13 families
• Listed among the electronic-related workshop tools
• Measuring accessory, not a fitted engine part

🔌 Function

Provides the known reference point a meter measures a potential against, so a reading can be compared with specification instead of judged in isolation.

⚠️ Common Signs of Failure

• Readings that drift or will not repeat on the same measurement
• Electrode tip contaminated, filmed over or damaged
• Lead or connector corroded, giving an unstable reading
• Body cracked or leaking after a knock

🛠️ Service Notes

• Check the electrode against a known reference before trusting a reading that condemns an expensive component
• Keep the tip clean and store it as the instrument instructions require, since a contaminated electrode reads as a fault

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21504294 → Supersedes 885156

OEM / Related Numbers

• 885156 earlier number superseded by this part

📦 Condition

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