ARCO Marine 30470-A High-Performance Inboard Starter for 14-Inch Flywheel, Gear Reduction

High-Performance Inboard Starter with 14" Flywheel Gear Reduction

The inboard starter that will fit Mercruiser, Volvo Penta, OMC, Marine Power, and others. Will replace 9 tooth drive OEM versions 3.0 - 8.1L with 14" flywheel. Anodized casting, nickel-plated brush holder (OEM mounting bolts included).

ARCO advises using a fully charged battery - A weak battery can damage the starter and starter solenoid. And to also clean all connections - A corroded connection creates resistance, lowering the amperage required for an efficient starting circuit.

Features:

• Dynamically tested and packaged for out-of-the-box performance
• Nickel-coated and/or epoxy-painted to reduce corrosion
• Sealed to minimize water intrusion
• Designed for long life and optimum performance
• Armatures are tested to withstand 50 times operating voltages (12 volts)

Warranty Information:

When properly installed, all ARCO products are warrantied against defects in materials and workmanship for a period of 12 months for leisure use and 90 days for commercial or racing applications.

Add an extra year of warranty to your rotating electric ARCO product (Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters) when you register your product within 30 days of purchase. You can register your product by visiting arcomarine.com/product-registration

Replaces:

BRP/ OMC Inboard Starter 984456
BRP/ OMC Inboard Starter 986505
BRP/ OMC Inboard Starter 3850525
BRP/ OMC Inboard Starter 3853982
BRP/ OMC Inboard Starter 3854751
BRP/ OMC Inboard Starter 3855177
BRP/ OMC Inboard Starter 3857747
BRP/ OMC Inboard Starter 3860566
DELCO Inboard Starter 9000735
DELCO Inboard Starter 9000762
DELCO Inboard Starter 9000768
DELCO Inboard Starter 9000789
DELCO Inboard Starter 9000819
DELCO Inboard Starter 9000821
DELCO Inboard Starter 9000839
DELCO Inboard Starter 9000840
DELCO Inboard Starter 9000849
DELCO Inboard Starter 9000885
DELCO Inboard Starter 9000940
DELCO Inboard Starter 9000884 (Hi-Perf)
MARINE POWERInboard Starter 0174-000
MERCURY Inboard Starter 50-12121A2
MERCURY Inboard Starter 50-12177A2
MERCURY Inboard Starter 50-806964A2
MERCURY Inboard Starter 50-806964A3
MERCURY Inboard Starter 50-806964A4
MERCURY Inboard Starter 50-812428A3
MERCURY Inboard Starter 50-812604A2
MERCURY Inboard Starter 50-822330A2
MERCURY Inboard Starter 50-864340A2
MERCURYInboard Starter 50-8M8021116
MERCURY Inboard Starter 50-99418A2
SIERRA Inboard Starter 18-5905
SIERRAInboard Starter 18-5910
SIERRAInboard Starter 18-5913
SIERRA Inboard Starter 18-6946
SIERRA Inboard Starter 18-6275-1
SIERRA Inboard Starter 18-5913-1
VOLVO Inboard Starter 3587625
VOLVOInboard Starter 3857747
VOLVOInboard Starter 3860566
VOLVOInboard Starter 3860764
VOLVOInboard Starter 3885317
VOLVOInboard Starter 3850525-1
VOLVOInboard Starter 3853982-1
VOLVOInboard Starter 3854751-9
VOLVOInboard Starter 3855177-6
VOLVO Inboard Starter 3856004-1

ARCO Marine 30470-A High-Performance Inboard Starter is designed for marine engine owners and service professionals who need a replacement starter for inboard applications using a 14-inch flywheel. This gear-reduction starter replaces 9-tooth drive OEM versions on compatible 3.0L through 8.1L engines and is designed to fit Mercruiser, Volvo Penta, OMC, Marine Power, and other applications identified by the manufacturer.

Built for demanding marine environments, the starter features an anodized casting, a nickel-plated brush holder, and included OEM mounting bolts. Its nickel-coated and/or epoxy-painted components help reduce corrosion, while the sealed design helps minimize water intrusion. Each unit is dynamically tested and packaged for out-of-the-box performance, providing a practical replacement option for service, repair, or restoration work.

For reliable starter operation, ARCO Marine advises using a fully charged battery and cleaning all electrical connections before installation. A weak battery can damage the starter and starter solenoid, while corroded connections can create resistance and reduce the amperage available to the starting circuit. The armature is tested to withstand 50 times the operating voltage of 12 volts, supporting the starter’s design for long life and optimum performance.

Key Features:

• Feature: Gear-reduction inboard starter designed for compatible 14-inch flywheel applications.
• Feature: Replaces 9-tooth drive OEM starter versions for selected 3.0L through 8.1L marine engines.
• Feature: Anodized casting and nickel-plated brush holder support corrosion resistance in marine use.
• Feature: Sealed construction helps minimize water intrusion.
• Feature: Dynamically tested and packaged for out-of-the-box performance, with OEM mounting bolts included.

Product Details:

• Brand: ARCO Marine
• Part Number: 30470-A
• Product Type: High-performance inboard starter
• Flywheel Application: 14-inch flywheel
• Drive: 9-tooth drive replacement
• Compatible Applications: Mercruiser, Volvo Penta, OMC, Marine Power, and others as specified by the manufacturer
• Warranty: 12 months for leisure use and 90 days for commercial or racing applications when properly installed. Register within 30 days of purchase for an additional year of warranty on qualifying rotating electric ARCO products.

Choose the ARCO Marine 30470-A when you need a tested, corrosion-conscious inboard starter for a compatible 14-inch flywheel marine engine. This product may not be returned to the original point of purchase; contact the manufacturer directly with any issues or concerns.

Features:

• Gear-reduction inboard starter for compatible 14-inch flywheel applications.

• Replaces 9-tooth drive OEM starter versions on selected 3.0L through 8.1L marine engines.

• Anodized casting and nickel-plated brush holder help reduce corrosion.

• Sealed design helps minimize water intrusion.

• Dynamically tested and packaged for out-of-the-box performance with OEM mounting bolts included.