# 21511584 Shim | Genuine Volvo Penta Part

## 🔧 Product Description

A 0.15mm selective shim used to set bearing preload and axial gear position in the upper vertical-shaft assembly of Volvo Penta DPH-D1 sterndrives.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta DPH-D1
-   Volvo Penta D6-330A-F
-   Volvo Penta D6-370A-F
-   Volvo Penta D4-260A-F
-   Volvo Penta D4-300A-F
-   Volvo Penta D6-300A-F
-   Volvo Penta D4-225A-F
-   Volvo Penta D6-300A-G
-   Volvo Penta D6-340A-G
-   Volvo Penta D6-380A-G
-   Volvo Penta DPH-E
-   Volvo Penta D6-400A-G
-   Volvo Penta D6-400A-F
-   Volvo Penta D4-150A-G
-   Volvo Penta D4-230A-G
-   Volvo Penta D4-270A-G
-   Volvo Penta D4-300A-G

-   **Engine Family:** DPH, D
-   **HP Range:** 150-400 HP

## ⚙️ Key Features

-   Thickness: 0.15mm
-   Selective drive-setup component
-   Controls bearing preload and gear position
-   Precision-ground steel shim
-   Must be selected from measured assembly clearance
-   TH=0.15mm (Volvo assembly listing)

## 🔌 Function

The shim adjusts the installed height of the bearing and gear assembly so shaft end play and gear mesh meet specification.

## ⚠️ Common Signs of Failure

-   Excessive vertical-shaft end play
-   Gear whine or bearing noise
-   Incorrect bearing preload
-   Scoring or compression of the shim
-   Drive overheating after incorrect setup

## 🛠️ Service Notes

-   Shims are supplied in graded thicknesses and exist to bring a setting into specification, so measure with a micrometer and select the thickness the setting procedure for your engine calls for rather than matching one by eye
-   Note which shim came from which position on removal and keep them identified — once an assembly has bedded in, shims are not interchangeable between positions
-   Check both faces are clean, flat and free of burrs, corrosion and old sealant before fitting; dirt trapped under a shim shifts the setting as surely as the wrong thickness does
-   Discard any shim that is dished, cracked, pitted or fretted rather than reusing it, and make sure no old shim has been left behind in the recess
-   Recheck the clearance or setting after the assembly is tightened down, because clamping load can change the measurement you took loose

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21511566 - Bearing washer
-   181804 - Ball bearing
-   184778 - Needle roller bearing
-   21821906 - Gear set
-   22050739 - Spacer tube
-   3849006 - Sliding sleeve
-   184654 - Needle roller bushing

## 📦 Condition

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

## Details

- **Price:** 12.5 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.50 AUD | In stock |

## Images

- 21511584 Shim | Genuine Volvo Penta Part
- 21511584 Shim | Genuine Volvo Penta Part - photo 2 of 2

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21511584-shim-genuine-volvo-penta)
> Updated: 2026-09-19