21533394 Aftermarket Volvo Penta/Mercruiser Carburettor Kit 3.0 GL, GS Models | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Holley 2300 2-Barrel Carburettor Repair Kit - Replaces Part Number: 21533394

New aftermarket repair kit replacing Volvo Penta 21533394 for Holley 2300 two-barrel carburettors on 3.0L petrol engines. It also cross-references OMC and MerCruiser service numbers used on related 3.0L marine carburettor installations.

⚙️ Key Features

• Direct replacement for Volvo Penta 21533394

• Fits Holley 2300/H-2 two-barrel marine carburettors

• Supports Volvo Penta 3.0GL, 3.0GS and related models

• Cross-references OMC and MerCruiser service numbers

• One kit services one carburettor

🧰 Kit Contents

• Holley 2300 gasket and seal package - supplied under kit P/N 21533394

• Needle-and-seat and metering components - supplied under Sierra P/N 18-7246

• Accelerator-pump diaphragm and check components - supplied under kit 18-7246

• Fuel-bowl and carburettor mounting gaskets - supplied under kit 18-7246

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21533394 → Supersedes Volvo Penta 3854116 and 3854256

• 3854116 / 3854256 (earlier Volvo Penta references)

OEM / Related Numbers:

• OMC 987485

• OMC 987438

• OMC 987440

• MerCruiser 802523

Aftermarket / Verified Equivalents:

• Sierra: 18-7246

• Recmar: REC21533394

• Mallory: 9-37631

🚤 Compatibility

Commonly used on:

• 3.0L marine petrol engines with Holley 2300/H-2 two-barrel carburettor

Typically suits:

• Engine models:

• Volvo Penta 3.0-BY and 3.0-LK

• 3.0GL

• 3.0GLM-A/B/C and 3.0GLP-A/B/C/D/E/J

• 3.0GS-NC

• 3.0GSM-A/B/C and related BY/EFS/HUB/LKD/MDA/NCA/NCS/WTR/WTS variants

• 3.0GSP-A/B/C and related BY/EFS/HUB/LKD/MDA/NCA/NCS/WTR/WTS variants

• OMC 3.0L applications using 987438/987440/987485

• MerCruiser 3.0L Holley application using 802523

• HP Range: Approximately 115HP - 140HP

• Engine Type: 3.0L inline four-cylinder carburetted petrol marine engine

• Year Range: Model- and carburettor-code dependent

• Serial / Carburettor Identification: Confirm Holley manufacturing code H-2 and the original OEM kit number.

🔌 Function

The kit renews the wear and sealing components used to control fuel level, meter fuel through the carburettor and prevent air or fuel leaks after the carburettor is dismantled for cleaning.

Common signs of failure:

• Hard starting or the need for excessive choke

• Unstable, hanging or excessively low idle

• Fuel leaking, flooding or fuel smell around the carburettor

• Hesitation, flat spot or stalling during acceleration

• Uneven cylinder fuelling, poor power or excessive fuel consumption

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging