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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Blue Sea E-series Battery Switch On-offBlue Sea Systems e Series On Off Battery Switch Model: 9003E BSS 350 Amps continuous rating for inboard gasoline or diesel engines. Tin plated copper studs for maximum conductivity and corrosion resistance Accepts up to 4 0 AWG battery cables Studs accepts 3 8"" (M10) ring terminals 7 8"" (22mm) stud length accepts multiple cable terminals Blue Sea Systems one piece terminal stud design never loosens over time Fits most Perko and Guest low amperage
Blue Sea Systems e-Series On Off Battery Switch
Model: 9003E-BSS- 350 Amps continuous rating for inboard gasoline or diesel engines.
- Tin-plated copper studs for maximum conductivity and corrosion resistance
- Accepts up to 4/0 AWG battery cables
- Studs accepts 3/8"" (M10) ring terminals
- 7/8"" (22mm) stud length accepts multiple cable terminals
- Blue Sea Systems one-piece terminal stud design never loosens over time
- Fits most Perko and Guest low amperage battery switch hole patterns
- Case design allows surface or rear panel mounting
- Tactile indicator conveys knob position by feel
- Waterproof — rated IP66 from water projected in powerful jets
- Ignition protected—safe for installation aboard gasoline powered boats
- Make-before-break contact design allows switching without power interruption
Switches a single battery to a single load group
Specifications| Switch Type | Single Circuit ON-OFF |
| Color | Red |
| Switch Positions | 2 |
| Battery Combine | No |
| Alternator Field Disconnect | No |
| Maximum Voltage | 48V DC |
| Terminal Stud Torque | 140 in-lb (15.82 Nm) |
| Continuous Rating | 350A |
| Intermittent Rating | 600A (5 min) |
| Cranking Rating 30 sec | 1200A per circuit |
| Battery Inputs | 1 |
| Cable Clearance For 4/0 AWG Cables | 1.10in (27.94 mm) |
| Cable Size to Meet Ratings | 4/0 AWG (120mm ) |
| Mounting Holes | Accept 1/4"" (M6) Screw |
| Stud Material | Tinned Copper |
| Terminal Stud Size | 3/8"" - 16 (M10) |
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 1807 reviews
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Product Reviews
★★★★★ 5
If pump doesn't seem to work
Size: For 85-300 HP, Size: For 85-300 HP
Hi....I apologize it took me a while to get back to you with my results. Here is what I discovered about the pump and will also apply to some of the other comments I read in the reviews with people not getting the pump to work:
1.) I removed the pump to check the proper direction of the impeller and it was correct as can be seen in the photo.
2.) I built a pump shaft attachement so that I could operate the pump with a power drill.
3.) I attached the water muff to the unit and tried to pump water.....it wouldn't do so. What I did see however was that even at high hose discharge and small leakage at the muff I could not fill the water cavity in the housing.
4.) I installed a strap around the muff and tightened it very tight and THEN at high hose pressure I was able to get the cavity to fill with water.
5.) At that point I activated the drill and was able to get the pump to actually pump water. I then removed the pump housing and removed the O-Ring that resides on top of the impeller, reassembled and it would not pump water. Since the O-Ring sits higher than the original does I wanted to make sure that it was necessary to have it in the pump.
6.) I reassembled the engine and kept the tight strap on the bottom and finally it pumped water into the engine.
My conclusion that you can reply to other buyers if they have a problem:
Do NOT underestimate 2 things....1.)the lack of ability of the pump to draw water up AND 2.)the fact that if the muff leaks it will NOT fill the cavity when common sense says it should. This was a 120hp Johnson. The engine bottom must be immersed fully or the muff must be very tight on the lower unit for the pump to function.
Please feel free to post this if you wish.
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Reviewed in the United States on August 12, 2024
★★★★★ 5
Exelente
Size: For 85-300 HP
Exelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 5
Good as new
Size: Package Dimensions 6.02 x 4.02 x 2.05 inches
Fitment was great and works as it should. Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
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