3854311 Aftermarket Mercruiser V6 Delco Rotor Button | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement V6 Delco EST Distributor Rotor - Replaces Part Number: 3854311

New aftermarket rotor replacing Volvo Penta/OMC 3854311 and related MerCruiser numbers for GM 4.3L V6 engines with Delco EST/HEI distributor ignition.

⚙️ Key Features

• V6-specific Delco EST/HEI rotor

• Cross-brand MerCruiser, Volvo Penta and OMC fitment

• Marine-grade moulded rotor body

• Matches V6 Delco distributor cap 850484/3854331

• Direct replacement terminal geometry

🧰 Kit / Assembly Contents

• 1 × V6 distributor rotor - Part Number: 3854311

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0062084 → Later service reference associated with 898253012

• 3854311 → Cross-references 804424 and 850485/8504851

OEM / Related Numbers:

• 804424

• 850485

• 8504851

• 898253012

• 8M0062084

Aftermarket / Verified Equivalents:

• Recmar: REC3854311

• Sierra/GLM/Mallory V6 Delco rotor family matched by distributor

• Volvo Penta/OMC: 3854311

🚤 Compatibility

Commonly used on:

• GM 4.3L V6 marine engines with Delco EST/HEI ignition

Typically suits:

• Engine / Equipment models:

• MerCruiser 4.3L/LX EFI and carburetted Delco-distributor applications

• Volvo Penta 4.3GL/Gi/GXi Delco applications

• OMC Cobra 4.3L Delco applications

• HP / Output Range: Approximately 175HP - 225HP

• Engine / System Type: GM 4.3L V6 petrol marine engine with Delco distributor

• Year Range: Principally 1990s production; serial-dependent

• Serial / Component Identification: Confirm the red/large V6 Delco distributor and cap family 850484/3854331.

🔌 Function

The distributor rotor transfers high-voltage ignition energy from the centre terminal of the distributor cap to each cylinder terminal in firing order. Correct rotor phasing and low electrical resistance are required for a strong, accurately timed spark.

Common signs of failure / service requirement:

• Misfire under load or at higher engine speed

• Hard starting or intermittent no-start

• Burnt, eroded or carbon-tracked rotor tip

• Weak or inconsistent spark at several cylinders

• Moisture damage, cracking or excessive distributor-shaft play

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging