MerCruiser 3.0L / 3.0LX / 3.0 TKS Engine Parts

MerCruiser

3.0L engine parts

3.0L · 3.0LX · 3.0 TKS

Browse filters, ignition parts, cooling components, belts, gaskets and exhaust service parts for MerCruiser 3.0L, 3.0LX and 3.0 TKS engines. This engine family is found in compact recreational bowriders and runabouts, including selected Bayliner 175, Sea Ray 175 Sport and Glastron MX 175 and GT 185 packages. Engine options vary by model year, and boats may have been repowered, so match the installed engine’s model and serial number before ordering.

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Quicksilver 3.0L Alpha TKS marine gasoline engine — Quicksilver 3.0L Alpha TKS engine shown for reference. Equipment varies by serial number.

Service & maintenance

Service parts to check

These parts apply to specific installed components. Confirm the engine serial number, ignition and fuel-system configuration before ordering.

Mercury / Quicksilver · 811635K2Distributor cap & rotor kitFor GM four-cylinder 3.0L engines with Delco EST ignition. Check the installed distributor and engine serial number.View part details →

Mercury / Quicksilver · 53336TCarburetor fuel filterFor specified Rochester and MerCarb carburetors. Match the carburetor fuel-inlet filter and serial application.View part details →

Mercury / Quicksilver · 8M0046751Fuel pump filter kitFor applicable gasoline MerCruiser fuel-pump assemblies, including 3.0L. Confirm the installed pump and engine serial application.View part details →

Browse by system

Find your service category

These broader marine collections are browsing aids and include parts for other engines. A category link does not confirm 3.0L, 3.0LX or 3.0 TKS fitment.

FiltersOil and fuel filtrationBrowse category → FuelCarburetors, filters and fuel componentsBrowse category → Ignition & electricalDistributor, ignition and electrical componentsBrowse category → CoolingPumps, impellers and cooling componentsBrowse category → Belts & hosesBelts, hoses and clampsBrowse category → Gaskets & sealsGaskets, sealing rings and sealsBrowse category → ExhaustManifolds, elbows and exhaust componentsBrowse category → MaintenanceBrowse service and maintenance partsBrowse category →

Before selecting parts

Identify the engine you have

The model name is a starting point. Use the complete engine identification and serial number to select the correct diagram and replacement parts.

3.0L / 3.0LX

Confirm the complete model designation, engine serial number, installed distributor and carburetor. Ignition and fuel-system components vary between configurations.

3.0 TKS

TKS means Turn-Key Starting. It uses a carburetor with automatic enrichment. Identify the installed TKS carburetor and related components when checking fuel-system parts.

Engine & drive identification

Use the engine serial number for engine parts. For drive parts, provide the drive model and its own serial number. Verify replacement or repowered equipment as installed.

This page covers the gasoline 3.0L, 3.0LX and 3.0 TKS family. It does not establish fitment for MPI engines or other displacements.

The MerCruiser engine serial-number label may be on the side of the engine or on top of the flame-arrester cover.

Mercury parts lookup Find your Mercury owner’s manual

Serial number help

Request a parts check

Send the Parts Desk your complete engine model, engine serial number, OEM part number if known, and photos of the identification label and old part. Include the ignition and carburetor details when asking about ignition or fuel-system parts.

Include in your message

Engine model and engine serial number
OEM part number, if known
Identification-label and old-part photos
Drive model and serial number for drive parts

Parts Desk

Help before you order

Use our contact page to send your details. The Parts Desk can help check the application before you select a replacement.

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