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Description
MRF2913-40 MARINE FUSE CERAMICCross References Brand Manufacturer Part Number Bussmann MRBF 40, BK MRBF 40 CTO USA (Main Product) MRF2913 40 Littelfuse 0581040, 581040, 0581040. X Technical Specifications Feature Details Value Product Name Marine Rated Battery Fuse (MRBF) Ceramic Cube Fuse Product Code MRF2913 40 Amperage Rating 40 Amps (40A) Maximum Voltage Rating 58V DC Fuse Body Material Heavy Duty Weatherproof Ceramic Housing Terminal Material Tin Plated Copper Alloy Core
Cross References
| Brand / Manufacturer | Part Number |
|---|---|
| Bussmann | MRBF-40, BK/MRBF-40 |
| CTO USA (Main Product) | MRF2913-40 |
| Littelfuse | 0581040, 581040, 0581040.X |
Technical Specifications
| Feature | Details / Value |
|---|---|
| Product Name | Marine Rated Battery Fuse (MRBF) / Ceramic Cube Fuse |
| Product Code | MRF2913-40 |
| Amperage Rating | 40 Amps (40A) |
| Maximum Voltage Rating | 58V DC |
| Fuse Body Material | Heavy-Duty Weatherproof Ceramic Housing |
| Terminal Material | Tin-Plated Copper Alloy Core Elements |
| Product Group | Starters / Alternators / Electrical - Components - Fuses |
| Category | Marine Fuses |
| UPC Code | 402500980217 |
| Item Gross Weight | 0.062 lbs |
| Status | Active |
Applications & Compatibility Guide
| Category | Usage & Universal Compliance Guidelines |
|---|---|
| Recommended Use | • Specially engineered for space-constrained marine and heavy automotive electrical environments. Ideal for primary battery terminal branch protection, main alternator outputs, accessory wiring loops, electronics distribution blocks, and DC power input circuits. |
| Universal Compatibility | • Universally compatible with all standard single, dual, or triple post MRBF (Marine Rated Battery Fuse) terminal blocks and mounting bars. • Widely utilized in commercial watercraft, recreational yachts, off-grid solar battery banks, specialized fleet service trucks, RV electrical networks, and heavy-duty auxiliary power units. |
| Purpose & Function | • Acts as a critical high-amperage, fast-acting barrier directly at the battery source to prevent devastating wiring harness damage or localized thermal failure loops. • Features an ignition-protected design (complying with SAE J1171 standards) that isolates internal electrical arcs, making it entirely safe for installation within enclosed marine engine compartments and gasoline or diesel fuel environments. |
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
4.2 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
This stuff really works fast and improves mpg like you won’t believe
Size: 300 Milliliter
I’ve tried many other types of fuel injector cleaners but this brand is amazing. I ran my truck down to less than a quarter of a tank of gas and poured it into the tank. I then drove 30 miles to an appointment and spent an hour in the appointment on the way home I noticed my mpg had gone up significantly. My truck tells me how many miles per gallon. I’m getting as I drive. I had gotten a code and I replaced the mass air filter and found a slight crack in an air hose, which I replaced that help with my code a little bit, but cleaning the fuel injectors with this product made such a significant difference. I just simply had a hard time believing it, but it’s true.
I’m done with all those other brands of fuel injector cleaners which never really seemed to help much if you really want an amazing experience give this product to try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
★★★★★ 5
Direct fit
Style: Standard Air Filter
Good price and direct fit, good quality, compatible with factory filter, easy install for DIY service.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Less price same product
Style: Standard Air Filter
Fits well better price than Fram
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Air intake
Style: Standard Air Filter
Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
Perfect fit, no problems.
Style: Standard Air Filter
It fit perfect in my grandson's 2013 Subaru Outback. It went right in with no problem. And you can't beat the price. Will definitely purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
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