# 21111128 Collar | Genuine Volvo Penta Part

## 🔧 Product Description

Brand-new genuine Volvo Penta collar used in the D13/D16 plate heat exchanger. Two collars fit with liners 21111123 and end spacer tubes 21111110 to establish the correct shoulder and top-plate location.

## 🚤 Compatibility

-   **Engine Family:** D

Full model list at the end of this description.

## ⚙️ Key Features

-   Two used per applicable heat exchanger
-   Works with liner 21111123 and spacer tube 21111110
-   Maintains the correct top-plate stand-off
-   Precision-machined structural spacer
-   One collar supplied
-   Engine type: Volvo Penta D13 and D16 marine diesel

## 🔌 Function

Provides the shoulder and axial spacing that correctly locates the plate-stack end support beneath the top plate.

## ⚠️ Common Signs of Failure

-   Collar corrosion or deformation
-   Incorrect plate-stack height
-   Loose or uneven top plate
-   Leakage from poor gasket compression
-   Wear around the spacer-tube interface

## 🛠️ Service Notes

-   Two collars are fitted per heat exchanger, working with liner 21111123 and spacer tube 21111110 to set the plate-stack end stand-off - order the matching liner and spacer together if rebuilding the whole end assembly
-   At only 0.018 kg this is a small precision spacer rather than a structural part - keep it separated from the liner during strip-down so it isn't lost or swapped

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   Liner 21111123
-   Spacer tube 21111110
-   Top plate 21111056

### Other-Brand OEM Numbers

-   VOE21111128

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D13C3-B MH, D13C1-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C1-B MG, D13C3-B MG, D13C5-A MP, D13C1-A MG, D13C7-B MP, D13C8-B MP

## Details

- **Price:** 572.37 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 572.37 AUD | In stock |

## Images

- 21111128 Collar | Genuine Volvo Penta Part
- 21111128 Collar | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21111128-collar-genuine-volvo-penta)
> Updated: 2026-10-08