# 21866946 Heat Shield | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine position-specific heat shield fitted around the exhaust manifold on Volvo Penta TAD1670-72VE industrial engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1670-72VE

-   **Engine Family:** TAD
-   **HP Range:** Approximately 500-800 HP
-   **Year Range:** Approximately 2010 - 2021

## ⚙️ Key Features

-   Genuine Volvo Penta position-specific thermal shield
-   Factory shape and mounting-hole pattern
-   Reduces radiant heat exposure
-   Protects wiring, hoses and nearby components
-   Designed for engine vibration and repeated heat cycles
-   Engine type: 16.1L inline six-cylinder turbocharged industrial diesel

## 🔌 Function

Forms a thermal barrier between hot exhaust or turbocharger components and the surrounding engine installation.

## ⚠️ Common Signs of Failure

-   Cracking, warping or corrosion
-   Rattling from loose mountings
-   Missing spacers, bushings or fasteners
-   Contact with the exhaust or turbocharger

## 🛠️ Service Notes

-   Fit heat shields before anything else is routed near the exhaust, and check there is clear air space between the shield and every hose, cable, fuel line and belt
-   Renew any insulation, gaskets, spacers or standoffs supplied with the shield; a shield clamped flat onto a hot surface loses much of its effect
-   Tighten the fixings evenly and only to the figure in the workshop manual for your engine — the tabs and brackets are thin and distort easily
-   Never run the engine with a shield missing or loose: bare exhaust surfaces are a fire risk in an engine space and a burn risk to anyone working alongside
-   Check the shield and its fasteners whenever the exhaust is disturbed, as vibration works them loose and a rattling shield soon cracks at its mounting tabs

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   22446424 - exhaust manifolds
-   20901584 - exhaust manifolds
-   22446422 - exhaust manifolds
-   20938964 - manifold sealing kit
-   21695684 - sealing ring
-   21352841 - gasket
-   21865846 - companion heat shield

## 📦 Condition

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

## Details

- **Price:** 428.05 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 428.05 AUD | In stock |

## Images

- 21866946 Heat Shield | Genuine Volvo Penta Part
- 21866946 Heat Shield | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21866946-heat-shield-genuine-volvo-penta)
> Updated: 2026-09-22