# 423404 Cover | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cover in the alternative version, marked Alt, from the Engine group, weighing 0.465 kg and listed for 57 applications across the TD, TWD, TMD, TID, D and MD series engines.

## 🚤 Compatibility

-   **Engine Family:** TD, TWD, TMD, TID, D, MD, TAMD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   Alternative version, marked Alt
-   0.465 kg
-   57 applications across six engine series

## 🔌 Function

Closes and seals the housing it bolts to, keeping oil in and dirt out.

## ⚠️ Common Signs of Failure

-   Oil weep or misting at the cover joint
-   Cover distorted around the fixing holes or cracked
-   Gasket crushed or breaking up
-   Fixing threads pulled

## 🛠️ Service Notes

-   Case 423403 is the matching alternative part at 0.460 kg, and the 5 gram difference means weight cannot tell them apart
-   Renew the joint gasket whenever the cover comes off

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TD120C, TD120A, TD120G, TD120GG PP, TD120HP, TD120HPP, TD120GG, TD120AHC, TD120ARC, TD120BHC, TD120BRC
-   Volvo Penta TID121KG, TID121KGP, TID121KP, TID121LG, TID121LGP, TID121LP, TID121FG, TID121K, TID121K-87
-   Volvo Penta TD121G-87, TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121CHC, TD121CRC
-   Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
-   Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
-   Volvo Penta TAMD120A, TAMD120B
-   Volvo Penta TID120FG, TID120HPP
-   Volvo Penta TMD120A, TMD120B
-   Volvo Penta TWD1210P, TWD1210V
-   Volvo Penta TWD1211V, TWD1211P
-   Volvo Penta TWD1230ME, TWD1230VE
-   Volvo Penta D120A
-   Volvo Penta MD120A
-   Volvo Penta TAD121CHC
-   Volvo Penta TAD1230V
-   Volvo Penta TAMD121D
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A
-   Volvo Penta TWD1231VE

## Details

- **Price:** 83.23 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 83.23 AUD | In stock |

## Images

- 423404 Cover | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/423404-cover-genuine-volvo-penta)
> Updated: 2026-10-08