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Standard Duty Inboard Starter with Gear Reduction
The inboard starter that will fit Mercruiser, Volvo Penta, OMC, Marine Power, and others. All GM engines with 14" flywheel using a staggered bolt pattern. Recommended for late model 3.0 Liter with 14" flywheel using a tail bracket. Can also be used in place of a 10MZT style starter with two long bolt staggered patterns. Mounting bolt kit MBK450 required if replacing 10MT.
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
DELCOInboard Starter 9000762
DELCOInboard Starter 9000768
DELCOInboard Starter 9000789
DELCOInboard Starter 9000819
DELCOInboard Starter 9000821
DELCOInboard Starter 9000839
DELCOInboard Starter 9000840
DELCOInboard Starter 9000849
DELCOInboard Starter 9000885
DELCO Inboard Starter 9000940
DELCO Inboard Starter 9000884 (Hi-Perf)
MARINE POWER Inboard 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
MERCURY Inboard Starter 50-8M8021116
MERCURY Inboard Starter 50-807904A1
MERCURY Inboard Starter 50-863007A1
MERCURY Inboard Starter 50-99418A2
PLEASURECRAFT Inboard Starter RA122015
VOLVO Inboard Starter 3587625
VOLVO Inboard Starter 3857747
VOLVO Inboard Starter 3860566
VOLVO Inboard Starter 3860764
VOLVO Inboard Starter 3885317
VOLVO Inboard Starter 3850525-1
VOLVO Inboard Starter 3853982-1
VOLVO Inboard Starter 3854751-9
VOLVO Inboard Starter 3855177-6
VOLVO Inboard Starter 3856004-1
SIERRA Inboard Starter 18-6275
PROTORQUE Inboard Starter PH130-0067
MPPARTS Inboard Starter SDR0105
MPPARTS Inboard Starter SAB0081
Quick Guide (pdf)
FAQs
Product & Usage
1. Is your gear authentic and warranty-backed?
Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.
2. Are these products beginner-friendly?
Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.
3. Are these products built for marine conditions?
Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.
Maintenance & Accessories
1. What maintenance does marine electronics require?
Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.
2. Can I buy replacement parts and accessories separately?
Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.
3. Do you provide product manuals or installation guides?
Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.
Warranty & Guarantee
1. Does my purchase include a warranty?
Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).
2. How do I register for warranty coverage?
Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.
3. What does the manufacturer warranty cover?
Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.
4. Can I extend the warranty?
Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.
Purchasing & Support
1. How fast does my order ship?
Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.
2. Do you offer bulk or fleet pricing?
Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.
3. How can I contact support?
Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.
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