Air Filter for MerCruiser / Cummins 2.0L QSD Diesel Engines – Replaces Mercury 35-879172143
Air Filter for MerCruiser / Cummins 2.0L QSD Diesel Engines – Replaces Mercury 35-879172143 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Air Filter for MerCruiser / Cummins 2.0L QSD Diesel Engines – Repla...
Air Filter for MerCruiser / Cummins 2.0L QSD Diesel Engines – Replaces Mercury 35-879172143 is backordered and will ship as soon as it is back in stock.
Product Details
This replacement air filter element is designed for Mercury Diesel and MerCruiser 2.0L QSD engine applications. It helps keep airborne dust and debris out of the engine air intake for clean airflow and dependable diesel-engine operation.
The filter is a direct replacement for Mercury Marine OEM part number 35-879172143. It is supplied as one individual air filter element, not as a multi-part service kit.
- Replacement air filter element for Mercury Diesel 2.0L and 2.0L QSD applications.
- Direct-replacement design for the original filter element.
- Suitable for MerCruiser stern-drive and related marine diesel applications where the listed OEM number is specified.
- Confirm the engine model and OEM reference before ordering.
Part Number Matrix
Use the following manufacturer reference to help confirm that this replacement is the correct filter for your application.
| Brand | Part Number | Reference Type |
|---|---|---|
| Mercury Marine / MerCruiser | 35-879172143 | OEM reference |
Engine & Model Compatibility
The available application information identifies this filter for Mercury Diesel / CMD QSD 2.0 engines in the following power ratings. Always compare the engine identification label and the old filter reference before installation.
| Brand / Family | Engine Model | Rated HP | Engine Type | OEM Reference |
|---|---|---|---|---|
| MerCruiser / CMD | QSD 2.0 EI 115 | 115 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 EI 130 | 130 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 EI 150 | 150 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 EI 170 | 170 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 ES 130 | 130 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 ES 150 | 150 | Diesel | 35-879172143 |
| MerCruiser / CMD | QSD 2.0 ES 170 | 170 | Diesel | 35-879172143 |
Technical Specs
- Product Type
- Air filter element
- Application
- Mercury Diesel 2.0L and 2.0L QSD marine diesel engines
- Installation
- Direct replacement
- Fuel Type
- Diesel
- OEM Reference
- Mercury Marine / MerCruiser 35-879172143
- Package Type
- Single replacement filter element
What’s in the Box
- 1 x replacement air filter element
Installation Notes
- Turn the engine off and allow it to cool before servicing the air intake.
- Locate the air filter housing and remove the retaining clips, fasteners, or cover as applicable to your engine.
- Remove the old filter element and note its orientation before disposal.
- Clean loose dust and debris from inside the housing using a suitable clean, dry method. Do not allow debris to enter the intake passage.
- Install the replacement filter in the same orientation as the removed element.
- Check that the element is seated evenly and that the housing cover closes securely without pinching the filter.
- Reinstall all clips or fasteners, then inspect the intake connection before starting the engine.
Maintenance & FAQ
How do I confirm that this air filter fits my engine?
Compare your engine model with the QSD 2.0 applications listed above and verify that your existing filter or service information identifies Mercury OEM reference 35-879172143. If the model or reference does not match, confirm fitment with a qualified marine technician before ordering.
What are common signs of a restricted air filter?
Possible signs include reduced engine performance, sluggish acceleration, increased exhaust smoke, or unusual intake restriction. Inspection and replacement should follow the engine manufacturer’s service recommendations and the operating conditions of the vessel.
How often should the filter be replaced?
Replacement intervals vary with engine hours, dust exposure, salt-air conditions, and the manufacturer’s maintenance schedule. Inspect the filter regularly and replace it when it is dirty, damaged, damp, or otherwise unable to provide clean airflow.
Can this filter be washed or reused?
Unless the engine manufacturer specifically identifies the original element as washable and reusable, treat this replacement filter as a replaceable service element. Do not use solvents, compressed air, or cleaning methods that could damage the filter media or force debris into the intake.
Is this an OEM Mercury part?
This listing is for a replacement air filter element. Mercury OEM reference 35-879172143 is provided solely to help identify the application; the replacement is not represented as a genuine Mercury-branded component.
Safety & Important Information
- Verify the engine model and OEM reference before purchase and installation.
- Do not operate the engine with the air filter element or housing improperly installed.
- Keep dirt and loose material from entering the engine intake during service.
- Professional installation is recommended when the correct application or installation procedure is uncertain.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for a range of marine engine and stern-drive applications.
- Application-Focused Listings — Product references and compatibility information are provided to help customers compare the correct service part.
- Practical Service Support — Confirming the engine model and original part reference before ordering helps ensure the best possible fit.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
