3854020 Aftermarket Bombardier Carburettor Kit 4.3GL, GS WT, GI 5.0L, GL 5.7GL | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Volvo Penta/OMC Holley 2-barrel carburettor kit - Replacement Part Number: 3854020

A marine carburettor overhaul kit for Holley 2300-series two-barrel carburettors fitted to selected Volvo Penta and OMC 4.3L, 5.0L and 5.7L petrol engines. It services Holley carburettor numbers R-80312A and R-80312-1A and replaces several Volvo Penta, OMC and MerCruiser kit references.

⚙️ Key Features

• Marine Holley 2300 two-barrel service package

• Suitable for GM-based 4.3L V6 and 5.0L/5.7L V8 engines

• Renews accelerator-pump, power-valve, needle-and-seat and sealing components

• Cross-references to Sierra, Mallory, EMP and Recmar kits

• Services one carburettor

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21533400 → Later Volvo Penta service reference related to 3854020

• 3854020 → Replaces or cross-references to 3854347 and OMC 986796

OEM / Related Numbers:

• 3854020

• 3854347

• 21533400

• OMC 0778108

• OMC 0986796

• MerCruiser 802515

• Holley R-80312A

• Holley R-80312-1A

Aftermarket / Verified Equivalents:

• Sierra: 18-7238

• Mallory: 9-37624

• Mallory related kit: 9-37622

• EMP: 1300-36050

• GLM: 13464

• Recmar: REC3854020

Included Components:

• Needle-and-seat assembly - Component service reference: supplied in 3854020 / 18-7238

• Accelerator-pump diaphragm and valve parts - Component service reference: supplied in 3854020 / 18-7238

• Power valve - Component service reference: supplied in 3854020 / 18-7238

• Fuel-bowl and metering-block gaskets - Component service reference: supplied in 3854020 / 18-7238

• Carburettor base gasket - Component service reference: supplied in 3854020 / 18-7238

• O-rings, seals, clips and small service hardware - Component service reference: supplied in 3854020 / 18-7238

🚤 Compatibility

Commonly used on:

• Volvo Penta and OMC/Bombardier GM-based petrol sterndrive engines with Holley 2-barrel carburettors

Typically suits:

• Engine models:

• Volvo Penta 4.3GL

• Volvo Penta 4.3GS WT

• Volvo Penta 4.3GI carburetted service applications

• Volvo Penta 5.0L GL

• Volvo Penta 5.7GL

• OMC equivalents using carburettor R-80312A or R-80312-1A

• Engine Displacement: 262 CID / 4.3L, 305 CID / 5.0L and 350 CID / 5.7L

• Carburettor Type: Holley 2300 marine 2-barrel

• Engine Type: Carburetted GM V6/V8 marine petrol engine

• Year Range: Primarily approximately 1993 - 1998; confirm by carburettor list number

🔌 Function

The kit renews the wear and sealing components that control fuel entry, accelerator enrichment, power enrichment and bowl sealing. Correct rebuilding restores stable mixture control throughout starting, idle, transition and load operation.

Common signs of failure:

• Hard starting or excessive choke/enrichment required

• Rough idle, hunting or repeated low-speed stalling

• Hesitation, flat spots or intake backfire during acceleration

• Fuel leakage, flooding or an incorrect float-bowl level

• Lean surging, reduced power or fuel starvation under load

• Rich running, smoke, spark-plug fouling or excessive fuel consumption

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging