# 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

## Details

- **Price:** 1064.91 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1064.91 AUD | In stock |

## Images

- 20973777 Service Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20973777-service-kit-genuine-volvo-penta)
> Updated: 2026-10-08