# 20929906 Unit Injector | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine service component used in the d16 electronic unit-injection system. It restores the original Volvo Penta fit, dimensions and operating relationship.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1650GE
-   Volvo Penta TAD1651GE
-   Volvo Penta TAD1650VE

-   **Engine Family:** TAD
-   **HP Range:** Approximately 750 HP
-   **Year Range:** Approximately 2000s-2010s

## ⚙️ Key Features

-   OEM-calibrated fuel-delivery and spray characteristics
-   Maintains cylinder balance, power and combustion quality
-   Compatible with the original electrical and fuel connections
-   Requires new seals and correct installation procedure
-   Professional test/calibration verification is recommended
-   Engine type: 16 L six-cylinder electronically controlled unit-injected diesel

## 🔌 Function

Combines the high-pressure pumping element and the injection nozzle in a single unit at the cylinder, raising the fuel to injection pressure and metering the quantity and timing under electronic control so that each cylinder receives its correct charge.

## ⚠️ Common Signs of Failure

-   Hard starting, extended cranking or cylinder misfire
-   Rough idle or cylinder imbalance
-   Incorrect leak-off, spray pattern or calibration during testing

## 🛠️ Service Notes

-   Fit with new seals and follow the specified installation and calibration procedure - a unit injector that is not installed and set up as specified will not deliver correctly however sound it is
-   Check fuel cleanliness and the condition of the filters before condemning an injector, as contaminated fuel damages the replacement in the same way
-   Hex socket screw 20929924 belongs to the same unit-injection installation and is worth renewing with the injector

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3801263 (Volvo Penta remanufactured/exchange unit injector)

### OEM / Related Numbers

-   276948 injector O-ring/seal kit
-   21261987 injector washer
-   21168206 injector yoke
-   21344774 injector-yoke flange screw
-   983472 cable tie
-   8131393 injector retainer
-   Related Volvo reference 20780666

### Other-Brand OEM Numbers

-   Delphi BEBE4D14101 / BEBE4D14001
-   Delphi: BEBE4D14001

### OEM Reman Alternatives

-   3801263 Volvo Penta remanufactured unit injector

### Aftermarket / Verified Equivalents

-   Related Volvo reference: 20780666

## 📦 Condition

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

## Details

- **Price:** 2576.01 AUD
- **Vendor:** Volvo Penta
- **Type:** Injectors & Injection
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2576.01 AUD | In stock |

## Images

- 20929906 Unit Injector | Genuine Volvo Penta Part
- 20929906 Unit Injector | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20929906-unit-injector-genuine-volvo-penta)
> Updated: 2026-09-06