# 20513933 Plug | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Plug - Part Number: 20513933

  

This genuine Volvo Penta plug is an OEM service component used in the Air-Compressor PTO Housing Plug. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta engine-mounted air-compressor PTO systems application. Technical identification: Threaded closure plug; Volvo function group 1129. In service, it closes and protects the specified machined opening or housing interface so fluid, pressure and contamination remain controlled. Selection must be confirmed by OEM part number 20513933, the exact model/product number, serial number and installed assembly configuration.

  

⚙️ Key Features

  

• Genuine Volvo Penta OEM plug

• OEM part number 20513933

• Documented application: Air-Compressor PTO Housing Plug

• Validated engine/application family: Volvo Penta engine-mounted air-compressor PTO systems

• Technical distinction: Threaded closure plug; Volvo function group 1129

• Primary function: Closes and protects the specified machined opening or housing interface so fluid, pressure and contamination remain controlled.

• Inspect bores, threads and sealing faces for distortion or corrosion, renew associated seals and tighten the housing or cover in the specified sequence.

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20513933 (current/original OEM service reference)

  

OEM / Related Numbers:

  

• 20513933

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Air-Compressor PTO Housing Plug

  

Typically suits:

  

• Engine / product models:

• Air-compressor PTO A, 225 cm³

• Air-compressor PTO A, 720 cm³

  

• Engine / Application Family: Volvo Penta engine-mounted air-compressor PTO systems

• Serial / Configuration Note: Select by PTO housing type, displacement and serialised compressor installation; confirm thread and sealing method.

  

🔌 Function

  

Closes and protects the specified machined opening or housing interface so fluid, pressure and contamination remain controlled. Inspect bores, threads and sealing faces for distortion or corrosion, renew associated seals and tighten the housing or cover in the specified sequence.

  

Common signs of failure:

  

• Cracking, distortion, corrosion or impact damage to the housing or cover

• Leakage or contamination entering around the joint or closure point

• Damaged threads, sealing faces, bores or mounting locations

• Loose fit or inability to support/protect the connected component correctly

• Misalignment or loss of protection causing damage to adjacent parts

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 4.39 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4.39 AUD | In stock |

## Images

- 20513933 Plug | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20513933-plug-genuine-volvo-penta)
> Updated: 2026-07-30