# 20503566 Bleeder Screw | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Bleeder Screw - Part Number: 20503566

  

This genuine Volvo Penta bleeder screw is an OEM service component used in the Fuel-Tank Bleed Point. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta TB-series fuel-tank installations application. Technical identification: Bleeder screw/plug for the fuel-tank mounting and bleed point; Volvo Group product group 2540, function group 1515. In service, it opens a controlled bleed passage so trapped air, vapour or residual pressure can be released from the connected fuel-tank or fluid circuit, then reseals the port during normal operation. Selection must be confirmed by OEM part number 20503566, the exact model/product number, serial number and installed assembly configuration.

  

⚙️ Key Features

  

• Genuine Volvo Penta OEM bleeder screw

• OEM part number 20503566

• Documented application: Fuel-Tank Bleed Point

• Validated engine/application family: Volvo Penta TB-series fuel-tank installations

• Technical distinction: Bleeder screw/plug for the fuel-tank mounting and bleed point; Volvo Group product group 2540, function group 1515

• Primary function: Opens a controlled bleed passage so trapped air, vapour or residual pressure can be released from the connected fuel-tank or fluid circuit, then reseals the port during normal operation.

• Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20503566 (current/original OEM service reference)

  

OEM / Related Numbers:

  

• 20503566

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Fuel-Tank Bleed Point

  

Typically suits:

  

• Engine / product models:

• TB-98817132-6

• TB-98818688-4

• TB-98817132-5

• TB-131021823-1

• TB-131021714-1

  

• Engine / Application Family: Volvo Penta TB-series fuel-tank installations

• Serial / Configuration Note: Select by the exact TB fuel-tank product number and tank serial/configuration; confirm the thread, seat and sealing method before installation.

  

🔌 Function

  

Opens a controlled bleed passage so trapped air, vapour or residual pressure can be released from the connected fuel-tank or fluid circuit, then reseals the port during normal operation. Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

  

Common signs of failure:

  

• Fuel or fluid seepage around the screw and seat

• Air repeatedly entering the circuit after bleeding

• Blocked bleed passage preventing trapped air or pressure from escaping

• Damaged threads or head preventing correct tightening

• Hardened or damaged sealing face causing repeat leakage

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 30.72 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 30.72 AUD | In stock |

## Images

- 20503566 Bleeder Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20503566-bleeder-screw-genuine-volvo-penta)
> Updated: 2026-07-29