# 21107993 Hose | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Exhaust-Thermostat Hose - Part Number: 21107993

  

Brand-new genuine Volvo Penta formed exhaust-thermostat hose used in catalyst-equipped gasoline-engine cooling systems. The hose connects one side of the port/starboard thermostat arrangement and is shaped to preserve the required coolant path around the exhaust hardware.

  

⚙️ Key Features

  

• Dedicated branch hose in the dual exhaust-thermostat system

• Port/starboard routing controlled by moulded shape

• Compatible with the original thermostat housing and clamps

• Designed for hot marine coolant service

• Hose only

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21107993 - Current OEM reference

  

OEM / Related Numbers:

  

• Volvo Penta 21107993

• VOE21107993

• Thermostat housings 40005486 / 40005487

• O-ring 21111308

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Dual exhaust-thermostat cooling systems on catalyst V8 engines

  

Typically suits:

  

• Engine / drive models:

• 5.0GiCE-JF

• 5.0GXiCE-JF

• 5.7GiCE-300-JF

• 5.7GXiCE-320-JF

• 5.7GiCE-300-MF

• 5.7GXiCE-320-MF

• Engine Type: Volvo Penta catalyst-equipped V8 marine gasoline engine

• Year / Generation: JF and MF catalyst generations

  

🔌 Function

  

Carries coolant through one branch of the dual exhaust-thermostat assembly to regulate exhaust-system temperature.

  

Common signs of failure:

  

• One exhaust bank running hotter

• Coolant seepage beneath a thermostat housing

• Hose splitting at a formed bend

• Restricted coolant flow

• Clamp imprint or hose-end deterioration

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 40.88 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 40.88 AUD | In stock |

## Images

- 21107993 Hose | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21107993-hose-genuine-volvo-penta)
> Updated: 2026-08-02