# 3830814 Crankshaft | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta crankshaft from the Engine group, weighing 149.684 kg and listed for 16 applications across TD, TWD, TMD, TAMD and TAD series engines. It supersedes part numbers 3137528 and 3837690.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD121G-87
-   Volvo Penta TWD1211V
-   Volvo Penta TWD1230VE
-   Volvo Penta TWD1231VE
-   Volvo Penta TWD1210V
-   Volvo Penta TMD122A
-   Volvo Penta TAMD122A
-   Volvo Penta TAMD122A/C
-   Volvo Penta TAMD122D
-   Volvo Penta TAMD122P-A
-   Volvo Penta TAMD122P-B
-   Volvo Penta TAMD122P-C
-   Volvo Penta TAD1230G
-   Volvo Penta TAD1230V
-   Volvo Penta TAD1231GE
-   Volvo Penta TAD1232GE

-   **Engine Family:** TD, TWD, TMD, TAMD, TAD

## ⚙️ Key Features

-   149.684 kg
-   Supersedes 3137528 and 3837690
-   Engine group
-   16 applications across five engine series
-   Also supersedes Volvo part number 848769

## 🔌 Function

Converts the pistons' reciprocating movement into rotation and carries the whole engine's output torque to the flywheel.

## ⚠️ Common Signs of Failure

-   Deep knock from low down in the engine, worst under load
-   Oil pressure low and falling as the engine warms
-   Bearing shells with copper showing, scoring or embedded debris
-   Journals scored, ridged or measurably out of round
-   Metal glitter in the oil or on the filter element

## 🛠️ Service Notes

-   At 149.684 kg this is a lifting-gear item and cannot be handled by one person - arrange freight and a hoist before it arrives
-   Establish why the original failed before fitting, as oil supply or filtration faults will destroy the replacement
-   Renew bearing shells, thrust washers and the front and rear seals as part of the job

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3830814 → Supersedes 3137528 → Supersedes 3826931 → Supersedes 865032 → Supersedes 478676

### OEM / Related Numbers

-   3837690 earlier number superseded by this part
-   3137528 earlier number superseded by this part
-   3826931 earlier number superseded by this part
-   865032 earlier number superseded by this part
-   478676 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 13821.21 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13821.21 AUD | In stock |

## Images

- 3830814 Crankshaft | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3830814-crankshaft-genuine-volvo-penta)
> Updated: 2026-10-12