20973777 Service Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta common-rail fuel-system service kit containing the delivery-valve and pressure-sensor components required for selected D5E, D6E and D7E engines. The kit services the high-pressure rail control and monitoring components as one matched package. Correct rail-pressure control is critical to starting, power delivery, emissions and engine protection.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD560VE
• Volvo Penta TAD561VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD734GE
• Volvo Penta TAD750GE
• Volvo Penta TAD751GE
• Volvo Penta TAD750VE
• Volvo Penta TAD752GE
• Volvo Penta TAD753GE
• Volvo Penta TAD754GE
• Volvo Penta TAD760VE
• Volvo Penta TAD765VE
• Volvo Penta TAD764VE
• Volvo Penta TAD763VE
• Volvo Penta TAD762VE
• Volvo Penta TAD761VE

• Engine Family: TAD
• Year Range: Approximately mid-2000s-mid-2010s

⚙️ Key Features

• Genuine Volvo Penta OEM common-rail service kit
• Correct Volvo Penta part number 20973777
• Contains delivery-valve and rail-pressure-sensor service components
• Used on D5E, D6E and D7E electronically controlled fuel systems
• Engine type: Volvo Penta electronically controlled common-rail diesel

📋 Kit Contents

• Common-rail delivery valve assembly - supplied under kit number 20973777 - quantity 1; no separate Volvo service number
• Common-rail pressure-sensor assembly - supplied under kit number 20973777 - quantity 1; no separate Volvo service number
• Required sealing components - supplied under kit number 20973777

🔌 Function

The delivery valve regulates fuel-rail flow and pressure, while the pressure sensor reports actual rail pressure to the engine control module for closed-loop control.

⚠️ Common Signs of Failure

• Hard starting or engine will not start
• Rail-pressure fault code
• Engine enters derate or protection mode
• Unstable idle, hesitation or loss of power
• Fuel leakage or implausible pressure reading

🛠️ Service Notes

• Service kits are built for a specific engine family and serial-number range, and contents change between builds — confirm the kit against your engine's serial number before ordering
• Check the kit against the job before you start and fit it complete; leaving out the parts that still look serviceable defeats the point of a kit
• Renew every gasket, seal and O-ring supplied even where the old ones appear sound, and follow the tightening sequences and figures in the workshop manual for your engine
• Record the work and the engine hours when the kit goes in, so the next service falls due at the interval Volvo Penta specifies for your engine

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20973777 → Supersedes 21455919 → Supersedes 20792328

OEM / Related Numbers

• 21455919 earlier number superseded by this part
• 21302639 related standalone rail-pressure sensor in selected rail assemblies

Other-Brand OEM Numbers

• VOE20973777

Aftermarket / Verified Equivalents

• FridayParts: HFP2201482 + HFP2201481 service package
• Ulupar: 40100556

📦 Condition

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