# 882545 Mercruiser Oil PCV Separator | Genuine Used Part

## 🔧 Product Description

**Genuine MerCruiser D1.7L DTI Oil PCV Separator - Part Number: 882545**

A genuine used MerCruiser crankcase oil separator for the D1.7L DTI 120HP marine diesel engine.

The separator forms part of the positive-crankcase-ventilation system. It removes suspended oil mist from crankcase gases before the gases are routed back into the intake system, reducing oil carry-over and intake contamination.

## ⚙️ Key Features

-   Genuine used MerCruiser oil / PCV separator
-   Correct OEM part number 882545
-   Used on D1.7L DTI diesel engines
-   Separates oil mist from crankcase vapour
-   Original marine crankcase-ventilation component

## 🚤 Compatibility

### Commonly used on

-   MerCruiser D1.7L DTI Alpha diesel sterndrive engines
-   Cummins MerCruiser Diesel 1.7L-120
-   CMD 1.7 MI / MS 120 inline-four model groups
-   Engine Type: Isuzu-derived turbocharged inline four-cylinder diesel
-   Engine Capacity: 1.7L
-   Rated Output: Approximately 120HP
-   Serial References: D1.7L DTI 0M055001 and above; selected 8810800-and-up CMD catalogues
-   Fitment Note: Verify hose connections and rocker-cover layout

## 🔌 Function

The separator removes oil droplets from crankcase vapour and returns or retains the oil while allowing cleaned vapour to enter the intake system.

## ⚠️ Common Signs of Failure

-   Excessive oil enters the intake
-   Crankcase pressure increases
-   Separator becomes blocked
-   Oil leaks around the housing
-   Engine produces increased blue smoke
-   Breather hoses soften or collapse
-   Turbo inlet becomes heavily oil contaminated

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   882545 current listed separator reference for the D1.7L family
-   The part is obsolete or limited through some Mercury supply channels

### OEM / Related Numbers

-   882545
-   Related rocker-cover and breather hoses
-   Related separator seals and mounting hardware
-   Related intake duct and turbocharger inlet components
-   Related crankcase-ventilation fittings

### Aftermarket / Verified Equivalents

-   No verified aftermarket equivalent

## 📦 Condition

-   Genuine used part
-   Removed from running engine where applicable
-   In good working condition unless otherwise stated

## Details

- **Price:** 120.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Type:** Filters
- **Tags:** Sawley’s AAM Used Parts – Oil Pumps & Components | Engine Lubrication Systems

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 120.00 AUD | In stock |

## Images

- 882545 Mercruiser Oil PCV Separator | Genuine Used Part
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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/882545-mercruiser-oil-pcv-separator-genuine-used-part)
> Updated: 2026-09-05