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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
Blue Sea 8686 Dual-Battery m-Series, Dual Circuit Plus [8686]m Series Dual Circuit Plus PN 6011 (1) 100A C Series Flat Rocker Circuit Breaker (2) 15A Push Button Thermal Circuit Breakers Designed for twin engine configurations Provides 24 hour circuit protection Provides main DC circuit protection in addition to high ampere load protection Protects electronics from sags and spikes caused by engine cranking Allows emergency cross connect between isolated battery banks Isolates the Engine circuit from the House
![Blue Sea 8686 Dual-Battery m-Series, Dual Circuit Plus [8686] Blue Sea 8686 Dual-Battery m-Series, Dual Circuit Plus [8686]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/20943XL.jpg?v=1643689742)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1911 reviews
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Product Reviews
★★★★★ 5
Great value and working started
Great starter. I had ordered a cheaper option before this and it just hold up. When this one arrived I could tell I made the right decision right out of the box. It looked, felt and worked like the OEM one. No shims just a good working starter. Spend a few extra bucks and save time.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Perfect fit for 5.7 Mercruiser
Great fit for mercruiser 5.7
Have had it installed for about 6 months and still working great!
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great Buy!!! 5-Star!!!
Bolted up! Boat starts like the original starter! Great Buy!!!
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Reviewed in the United States on April 1, 2026
★★★★★ 4
Seems good but not a direct replacement
This starter did work but it was not a direct replacement for the starter in my 1986 Malibu skier with 5.7 mercruiser direct drive. This starter is a mini-starter, which is great in that it’s smaller and lighter but it meant that my starter bolts were too long and I had to add 3/8” stack of washers under the bolt heads. The bracket that supports the front of the starter to the engine block was also not able to be used because the new starter is shorter, although with the lighter starter, that bracket is probably no longer necessary. First few starts have been fine.
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Reviewed in the United States on July 10, 2025
★★★★★ 5
Fit Great. Works great.
Fit perfectly Mercruiser 4.3
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Reviewed in the United States on March 22, 2026
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