# 20850116 Thrust Washer | Genuine Volvo Penta Part

## 🔧 Product Description

Volvo Penta lists this part as the thrust washer kit supplied inside its published overhaul kits. It appears in 2 of them: 3884935 for TAD650VE; 3884936 for TAD660VE.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE

-   **Engine Family:** TAD
-   **HP Range:** Approximately 180-250 HP
-   **Year Range:** Approximately 2004 - 2015

## ⚙️ Key Features

-   Genuine Volvo Penta Thrust Washer
-   Controls axial movement and provides a replaceable thrust-bearing surface between adjoining components
-   Engine type: 6-litre six-cylinder common-rail turbocharged diesel
-   Quantity varies by assembly, most commonly two
-   Listed by Volvo Penta as the thrust washer kit in its overhaul kits
-   1 off in overhaul kit 3884935 (TAD650VE)
-   1 off in overhaul kit 3884936 (TAD660VE)
-   Used in overhaul kits: 3884935 x1 (TAD650VE); 3884936 x1 (TAD660VE)

## 🔌 Function

Controls axial movement and provides a replaceable thrust-bearing surface between adjoining components.

## ⚠️ Common Signs of Failure

-   Low compression, abnormal combustion or cylinder imbalance
-   Knocking, tapping or abnormal valve-train noise
-   Excessive oil consumption, blow-by or exhaust smoke
-   Out-of-spec clearance, wear, scoring or heat damage during overhaul
-   Loss of power or metallic debris found in the lubricating oil

## 🛠️ Service Notes

-   Measure all mating parts and clearances against the exact engine specification rather than replacing the component by appearance alone.
-   Use clean engine-assembly practices, correct lubricants and the specified tightening sequence.
-   Volvo Penta's overhaul kits call for one of this part

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20855301 - cylinder-head references
-   20941118 - cylinder-head references
-   3884937 - cylinder-head kit
-   20798699 - inlet valve
-   20798533 - exhaust valve
-   20849976 - intake valve seat
-   20849979 - exhaust insert
-   20459855 - valve-stem seal
-   20799076 - tappet

### Other-Brand OEM Numbers

-   VOE20850116 - Volvo Construction Equipment prefixed number format

## 📦 Condition

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

## Details

- **Price:** 70.71 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 70.71 AUD | In stock |

## Images

- 20850116 Thrust Washer | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20850116-thrust-washer-genuine-volvo-penta)
> Updated: 2026-09-18