# 23879231 Exhaust Riser | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta exhaust riser weighing 10.89 kg, listed for 13 D series engine applications and superseding part number 78467551. Six risers appear in this slice between 7.2 and 14.0 kg, so order strictly by part number.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D13C2-B MP
-   Volvo Penta D13C2-A MP
-   Volvo Penta D13C4-A MP
-   Volvo Penta D13B-A MP
-   Volvo Penta D13B-H MP
-   Volvo Penta D13B-G MP
-   Volvo Penta D13B-K MP
-   Volvo Penta D13C4-B MP
-   Volvo Penta D13C6-A MP
-   Volvo Penta D13C5-B MP
-   Volvo Penta D13C7-B MP
-   Volvo Penta D13C8-B MP
-   Volvo Penta D13C9-A MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Exhaust riser
-   10.886 kg
-   Supersedes 78467551
-   Listed for 13 D series engine applications
-   One of six risers in this run spanning 7.244 kg to 13.971 kg, so order strictly by part number
-   Also supersedes Volvo part number 21485481

## 🔌 Function

Lifts the exhaust gas above the waterline and introduces cooling water into the gas stream, protecting the downstream hose and keeping water from running back into the engine.

## ⚠️ Common Signs of Failure

-   Rusty water or soot staining at the riser joints
-   Steam or a hissing leak from the flange with the engine running
-   Rough running or a hydraulic lock after standing, from water tracking back to a cylinder
-   Exhaust hose downstream running hot or scorched, showing the water injection is restricted
-   Heavy carbon and rust scale choking the bore when the riser is split off

## 🛠️ Service Notes

-   Renew the riser gasket and the exhaust hose clamps at the same time - both are disturbed by the job
-   Risers are a wear item on raw water cooled engines; inspect the manifold flange for corrosion before fitting a new one
-   The other risers in this run sit close in weight, so confirm the part number against the engine rather than judging by size

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23879231 → Supersedes 78467551 → Supersedes 22193562

### OEM / Related Numbers

-   78467551 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 9812.54 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9812.54 AUD | In stock |

## Images

- 23879231 Exhaust Riser | Genuine Volvo Penta Part
- 23879231 Exhaust Riser | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23879231-exhaust-riser-genuine-volvo-penta)
> Updated: 2026-09-06