# 21368508 V-Clamp | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine V-clamp used to secure the cover or housing joint of the Volvo Penta D4/D6 engine-mounted seawater filter. It provides uniform circumferential clamping around the filter assembly.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 145-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   D4/D6 seawater-filter clamp
-   Approximate catalogue weight: 0.28 kg
-   Uniform V-band clamping
-   Used with strainer 21368504 and O-ring 995147
-   Designed for wet marine cooling-system service

## 🔌 Function

The clamp secures the seawater-filter cover or housing and compresses the sealing O-ring evenly.

## ⚠️ Common Signs of Failure

-   Water leakage around the filter
-   Clamp band cracking or distortion
-   Damaged tightening bolt
-   Cover movement
-   Air entering the seawater pump suction

## 🛠️ 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 / Related Numbers

-   21368500 - Seawater-filter housing
-   21368504 - Strainer element
-   995147 - O-ring
-   21445782 - Outer sheath

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-330I-D, D6-280I-D, D6-310I-D, D6-435I-D, D6-280I-E, D6-310I-E, D6-300I-F, D6-330I-C, D6-370I-C, D6-280I-C, D6-310I-C, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435I-C, D6-435I-E, D6-435I-F, D6-370I-D, D6-330I-E, D6-370I-E, D6-480A-G
-   Volvo Penta D4-260I-F, D4-180I-F, D4-225I-F, D4-300I-E, D4-300I-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G, D4-175 VG
-   Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP, D8A7-A MP, D8A8-A MP

## Details

- **Price:** 216.12 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 216.12 AUD | In stock |

## Images

- 21368508 V-Clamp | Genuine Volvo Penta Part
- 21368508 V-Clamp | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21368508-v-clamp-genuine-volvo-penta)
> Updated: 2026-09-19