The part number 20798683 refers to a Fuel Injector specifically designed for the Volvo Penta D6 series engines, primarily the D6D and D6E models.
Here is the detailed information regarding this component:
1. Product Details
2. Engine Application
This injector is used in the following Volvo Penta marine diesel engines:
Volvo Penta D6D (Various power ratings, typically 310–370 hp)
Volvo Penta D6E (Typically 400–440 hp)
Volvo Penta D6-350, D6-370, D6-400, D6-435
*Note: The D6 series is an in-line 6-cylinder, 5.5-liter diesel engine with common rail fuel injection.*
3. Technical Context
The 20798683 injector is a critical component of the Common Rail Fuel System (often referred to as the "Volvo Penta D6" fuel system).
Calibration: These injectors are electronically controlled by the Engine Control Module (ECM/ECU).
Coding: When installing new injectors (or swapping them), it is mandatory to enter the Injector Classification Code (ICC) or Trim Code found on the injector body into the engine’s ECU using Volvo Penta’s diagnostic software (VODIA or Diacom). Failure to do so will result in rough running, excessive smoke, or engine damage.
4. Cross-Reference / OEM Numbers
Depending on the specific engine variant (A, B, C, or D designation), this injector may be superseded by or cross-referenced with:
5. Installation Notes
If you are replacing these injectors, please consider the following:
High-Pressure Seals: Always replace the copper sealing washers and O-rings at the time of installation.
Clamps: The hold-down clamps (often part number 20585920 or similar) are torque-to-yield (stretch bolts) and must be replaced to ensure proper clamping force.
Fuel Contamination: The D6 common rail system is extremely sensitive to contamination. If an injector has failed (e.g., stuck open), it is highly recommended to inspect the fuel return rates of the remaining injectors and replace the fuel filters.
Where to buy OEM diesel injectors
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