# 19299A1 Mercury MerCruiser Vent Assembly | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Oil Tank Vent Assembly - Part Number: 19299A1

  

A genuine Quicksilver oil tank vent assembly used on Mercury and Mariner 30HP to 125HP carbureted two-stroke oil injection systems. This vent assembly allows the engine-mounted oil tank to breathe correctly so oil can flow smoothly through the oil injection system.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM oil tank vent assembly

• Correct Mercury part number 19299A1

• Used on selected Mercury / Mariner 30HP to 125HP carbureted two-stroke outboards

• Fits oil tanks requiring the Mercury vent cap assembly

• Helps maintain correct oil tank pressure equalisation

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 19299A1 current OEM oil tank vent assembly reference

• 19299A earlier / short-form vent assembly reference

  

OEM / Related Numbers:

  

• 19299A1

• 19299A 1

• 19299A

• 19299

• Mercury 19299A1

• Quicksilver 19299A1

• Oil tank vent assembly

• Oil tank vent cap

• 1263-812718T1 related oil tank assembly

• 36-828765A2 related oil tank cap assembly

• 8M0039080 related cap / tank seal

• 21-64871 related valve

• 25-813644002 related grommet

• 87-12886A6 related switch assembly

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury / Mariner carbureted two-stroke oil injection systems

• Mercury / Mariner engine-mounted oil tank assemblies

• Oil tank vent service where 19299A1 is specified

  

Typically suits:

  

• Engine models:

• Mercury 30HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 40HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 40 Jet carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 45 Jet carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 50HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 55HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 60HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 60HP BigFoot carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 70HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 75HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 80HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 90HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 100HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 115HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mercury 125HP carbureted two-stroke oil injection applications where 19299A1 is specified

• Mariner 30HP to 125HP carbureted two-stroke oil tank applications where 19299A1 is specified

  

• HP Range: commonly 30HP - 125HP where specified

• Engine Type: Mercury / Mariner carbureted two-stroke outboard with oil injection

• System Type: Oil tank vent assembly

  

🔌 Function

  

The vent assembly allows the oil tank to equalise pressure as oil is drawn from the tank. Correct venting helps prevent oil starvation, tank vacuum and inconsistent oil delivery.

  

Common signs of failure:

  

• Oil tank not venting correctly

• Oil flow restriction to oil injection system

• Oil tank collapsing or holding vacuum

• Oil warning caused by poor oil delivery

• Vent cap cracked, blocked or missing

• Oil residue around vent assembly

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 22.8 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 22.80 AUD | In stock |

## Images

- 19299A1 Mercury MerCruiser Vent Assembly | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/19299a1-mercury-mercruiser-vent-assembly-genuine-quicksilver-oem-part)
> Updated: 2026-07-18