ARCO 57-30456 High Performance Starter – CW Rotation | MerCruiser, Crusader & Marine Power
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
ARCO 57-30456 High Performance Inboard Starter – Clockwise Rotation
Upgrade your inboard’s starting system with this high-performance, clockwise-rotation starter from ARCO Marine. The 57-30456 is built on the proven Delco 14 MT platform and delivers more cranking torque than a standard OEM replacement — making it the right choice for high-compression engines, cold-weather starts, or any application where reliability under load matters most.
Compatible Applications
- MerCruiser inboard engines
- Crusader marine engines
- Marine Power engines
- Pleasurecraft engines
- Other GM-based marine inboards using Delco 14 MT-style starters (CW rotation)
Replaces OEM Part Numbers
- Delco 19010617
- Crusader 42090
- Pleasurecraft RA122008
- ARCO 30120
- ARCO 30121
- ARCO 30454
- ARCO 30123
Parts Desk Insights
This is the preferred upgrade when a standard-duty starter is struggling with a high-compression or modified inboard engine, or when you simply want more confidence in cold-weather or high-cycle-count applications. Confirm your engine uses clockwise (CW) rotation before ordering — if you need counter-clockwise rotation, see the ARCO 57-30459 High Performance Starter or the ARCO 57-30460 High Performance Starter (CW). For a standard-duty alternative, the ARCO 57-30433 Gear Reduction Starter is a cost-effective option. Pair with the ARCO Heavy-Duty Starter Solenoid (SW463) for a complete starting system refresh, and use the ARCO Starter Mounting Bolt Kit (57-MBK450) for a clean, rattle-free installation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.