# 21439808 V-Clamp | Genuine Volvo Penta Part

## 🔧 Product Description

A heavy-duty V-band clamp used to secure a high-temperature exhaust or turbocharger-system flange on selected Volvo Penta D16 marine engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D16C-A MG
-   Volvo Penta D16C-A MH
-   Volvo Penta D16C-B MH
-   Volvo Penta D16C-C MH
-   Volvo Penta D16C-D MH

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine Volvo Penta heavy-duty V-clamp
-   Designed for D16 exhaust-system temperatures
-   Provides even circumferential flange loading
-   Corrosion- and heat-resistant construction
-   Used with the specified flange and sealing ring
-   Engine type: D16 inline-six turbocharged marine diesel

## 🔌 Function

Clamps the adjoining exhaust flanges together and compresses the sealing ring evenly.

## ⚠️ Common Signs of Failure

-   Exhaust soot around the joint
-   Clamp cracking or distortion
-   Stripped tightening hardware
-   Exhaust ticking or gas leakage
-   Clamp will not retain the specified torque

## 🛠️ Service Notes

-   Bring the two flanges squarely together before the clamp goes on — a V-clamp centres and holds a joint but cannot pull a misaligned pipe into line
-   Seat the clamp evenly round the flanges and nip it up lightly, then tap around the circumference with a soft mallet so the band settles and the flanges centre before final tightening
-   Tighten in stages to the figure in the workshop manual for your engine and no further; the clamp is meant to pinch the flanges while still allowing for expansion and vibration, and overtightening distorts the band or the flanges
-   Renew the clamp if the band is stretched, cracked or corroded, or if the bolt, nut or trunnion is damaged — a fatigued clamp can let the joint go completely
-   Recheck the clamp after the first run up to working temperature, and again at the next service

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21439808 → Supersedes 21177714

### OEM / Related Numbers

-   21177714 earlier number superseded by this part
-   21358019 - related gasket
-   3887844 and 3887846 - exhaust insulation
-   3801381, 3801925, 21420532 and 23564140 - related turbocharger references
-   3886542 - related V-clamp
-   1675066 - sealing ring

## 📦 Condition

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

## Details

- **Price:** 693.33 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 693.33 AUD | In stock |

## Images

- 21439808 V-Clamp | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21439808-v-clamp-genuine-volvo-penta)
> Updated: 2026-10-10