21918597 (219-18597)  Volvo Penta engine control relay, primarily utilized within the electronic control systems of Volvo generator sets and construction machinery.

I. Core Specifications (Volvo Genuine Parts Standard)

Model: 21918597 / VOE 21918597

Brand: Volvo Penta

Type: Engine Control Unit Relay

Voltage: 24V DC

Application: Diesel engine electronic control systems, starter control, and circuit protection

II. Compatible Models

Generator Set Engines:

TAD850VE / TAD851VE

TAD1150VE / TAD1151VE / TAD1170VE

TAD1641GE, etc.

Construction Machinery: Select Volvo excavators (EC Series) and wheel loaders equipped with corresponding electronic control systems

III. Alternatives and Procurement

Genuine Interchangeable Part: 24170981 (Control relay with identical specifications)

Domestic Alternatives: Must precisely match 24V voltage, be specifically designed for control unit applications, and adhere to the exact pin configuration; generic construction machinery relays cannot serve as direct replacements.