My Account
Shopping Cart

Sierra FS84140 Marine Battery Fuse Holder 75A with Protective Cap

Manufacturer

Sierra

<h3>Sierra: Six Decades of Marine Aftermarket Excellence</h3><p><strong>Sierra</strong> has spent nearly 60 years earning its reputation as one of the most trusted names in the marine aftermarket industry. Originally focused on engine and drive components for boats, the brand has grown into a comprehensive source for nearly everything a boater needs to keep their vessel running at its best — from precision instrumentation to complete engine rebuild hardware.</p><p>Now operating as a brand of Dometic, Sierra manages global aftermarket distribution from a 300,000 sq. ft. facility in Litchfield, Illinois. The Sierra brand today encompasses not only its flagship marine parts line but also well-established marine names like Shields and Moeller, offering boaters a broader catalog than ever before. Whether you own an outboard, inboard, or sterndrive, Sierra's engineering team designs products to meet or exceed OEM specifications.</p><h3>Precision Instrumentation You Can Trust on the Water</h3><p>One of Sierra's most recognized product areas is its marine instrumentation lineup. The brand's <a href="/7570-sierra-gauge-set-1480">gauge sets</a> cover everything from classic analog instrument clusters to advanced digital multi-function displays. Sierra offers packages suited to outboards, sterndrives, and gasoline-powered inboards, with options ranging from coordinated analog kits in styles like Arctic, Eclipse, and Amega to modern touchscreen solutions like the R3 multi-function gauge. Features such as scratch-resistant domed glass lenses, silicone-dampened pointers, and perimeter backlighting make these instruments highly readable in all conditions.</p><p>Behind every accurate gauge reading is a properly calibrated sending circuit. Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> are a critical part of that chain, ensuring the signals from sensors and sending units are correctly interpreted by your instruments. These components are built to marine-grade standards to resist moisture, vibration, and corrosion — the realities of life on the water.</p><h3>Engine Internals Built to OEM Standards</h3><p>Sierra's history in marine power is perhaps best demonstrated by its deep catalog of engine components. The brand's <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> cover a wide range of outboard and inboard applications and are engineered to deliver reliable seals in the demanding thermal and chemical environment of a marine engine. For boaters performing seasonal overhauls, top-end rebuilds, or full engine restorations, Sierra gasket kits are a go-to resource trusted by professional marine technicians and DIY boaters alike.</p><h3>A Complete Marine Parts Partner</h3><p>Beyond instrumentation and engine internals, Sierra's catalog spans fuel systems, electrical supplies, steering components, shore power, and more — all covered by what the brand calls an industry-leading warranty. Sierra also maintains a comprehensive parts-finder tool that enables cross-referencing with OEM part numbers from major manufacturers including Mercury, Yamaha, Suzuki, Volvo Penta, and others, making it straightforward to find the right replacement part for virtually any application.</p>

Part Number

FS84140
09/12/2036 6:32 AM
Sale Price

$19.92

In Stock (8)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra FS84140 is a marine-rated battery fuse holder designed to provide critical circuit protection directly at the power source. This 75-amp fuse holder mounts securely onto the positive battery stud, delivering reliable overcurrent protection in harsh marine environments.

Key Features:

  • Ignition protected when used with Sierra MRBF fuses for enhanced safety
  • Bolt-down design engineered for high-vibration marine applications
  • Standard isolated M8 stud design allows stacking of multiple terminals
  • Protective insulating cap prevents accidental short circuits
  • Compact footprint ideal for tight engine compartments and battery boxes
  • Supports up to 300A maximum amperage capacity
  • Clear fuse window provides easy visual fault indication
  • Meets ABYC requirements for DC main circuit protection on large battery banks

Perfect for protecting DC main circuits, bow thrusters, inverters, and windlass systems. The high-interrupt rating and marine-grade construction make this fuse holder an essential safety component for any marine electrical system. The isolated stud design ensures proper circuit protection while maintaining flexibility for complex wiring configurations.

Products specifications

Amps

75

Color

Brown

quick, easy and affordable, plus free shipping!

It was fast and easy which makes placing my order a pleasure.

Just hope it&rsquo;s the correct one, but easy to navigate sight. Thanks.

fast we'' see about delivery

I'm happy they have what I need!

shopping experience was as good as it can be none the less i hate shopping all together but it has to be done!!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy