# 21947169 Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta 1050mm interceptor trimming-plate assembly for the IS1050 boat-trim system. The plate mounts across the transom and deploys vertically to generate hydrodynamic lift with considerably less protrusion than a conventional trim tab. Servo units, wiring harnesses, drive shafts and control modules are separate system components.

## 🚤 Compatibility

-   **Engine Family:** D, VMM
-   **HP Range:** 110-480 HP
-   **Year Range:** Approximately late 2000s onward; hull width and system configuration control selection

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta OEM IS1050 trimming plate
-   Correct Volvo Penta part number 21947169
-   Nominal plate width: 1050mm
-   Low-profile vertical interceptor design
-   Integrates with Volvo Penta electronic interceptor controls

## 📋 Kit Contents

-   IS1050 1050mm trimming-plate assembly - part number 21947169 - quantity 1
-   Internal blade, housing and fixed plate components are supplied as assembly under the same part number
-   Servo-unit kit 21948237, drive-shaft kit 21888969, harnesses, mounting plate and installation hardware are separate

## 🔌 Function

The plate deploys a vertical blade into the water flow to create controlled stern lift, correct vessel list and optimise running trim.

## ⚠️ Common Signs of Failure

-   Plate blade will not deploy or retract
-   Housing or blade damaged by impact or fouling
-   Unequal trim between port and starboard
-   Water intrusion around the transom installation
-   Incorrect plate width selected for the hull or control system

## 🛠️ Service Notes

-   Check the kit contents against the parts list for your engine before you start, and confirm it is the kit specified for your engine's serial number — kit contents change between engine versions
-   Lay the contents out and identify every item against the assembly as it comes apart, so nothing is left over at the end
-   Use all the new parts supplied and discard the old ones, even where an old item still looks serviceable; the kit is packaged as a complete replacement for what it covers
-   While access is open, clean and inspect the mating parts that are not in the kit — new seals, gaskets or wearing parts fitted to a worn housing, shaft or face will not last
-   Tighten, set and adjust to the figures given in the workshop manual for your engine, and renew any single-use fasteners or locking devices the kit provides

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21947169 current Volvo Penta IS1050 trimming-plate reference

### OEM / Related Numbers

-   21948237 related servo-unit kit
-   21875630 earlier/obsolete individual servo unit
-   21888969 related drive-shaft kit
-   21875632 related wiring harness
-   22728820 related mounting-plate kit

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, 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, D6-435D-F, D6-400A-F, D6-435I-F
-   Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-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
-   Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-J MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C5-A MP, D13C7-B MP, D13C8-B MP
-   Volvo Penta D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H
-   Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
-   Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A4-A MP, D8A1-A MP, D8A3-A MP
-   Volvo Penta D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
-   Volvo Penta D9A2M MP, D9A2L MH
-   Volvo Penta VMM-A

## Details

- **Price:** 7398.62 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 7398.62 AUD | In stock |

## Images

- 21947169 Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21947169-kit-genuine-volvo-penta)
> Updated: 2026-09-19