OEX Mega Fuse 100A Bolt On Pack Of 5 - ACX6521

The OEX Mega Fuse 100A Bolt On pack contains 5 fuses for automotive electrical applications that use the Mega fuse format. Each fuse is rated at 100A and 32V DC, with a bolt-on design and SF51 type construction. The part number is ACX6521, and the listed length is 68.5mm.

This fuse is specified with copper tin plated construction and a centre-to-centre mounting distance of 50.8mm. Those measurements matter when you are comparing against an existing fuse holder or checking whether the fuse will physically align with the mounting points already in place.

As a pack of 5, this option suits workshops, fleet maintenance, or owners who prefer to keep matched replacements on hand. A single pack is also listed separately under ACX6521BL, which may be useful if you only need one fuse rather than a 5-pack.

Key Features

• OEX Mega Fuse, bolt on
• 100A current rating
• 32V DC specification
• SF51 type
• Copper tin plated construction
• Centre-to-centre mounting: 50.8mm

Specifications

• Brand: OEX
• Part number: ACX6521
• Fuse type: Mega
• Item type: Fuse
• Current rating: 100A
• Voltage: 32V DC
• Type: SF51
• Length: 68.5mm

Application and Buying Notes

When choosing a fuse like this ACX6521 OEX Mega Fuse, the main checks are the amperage rating, voltage rating, physical size, and mounting spacing. This unit is rated at 100A and 32V DC, so it should only be matched to an application that calls for those figures. The listed length is 68.5mm, and the mounting is 50.8mm centre to centre, so both dimensions need to suit the holder or busbar arrangement already fitted.

The bolt-on style is important. It is not a universal plug-in blade fuse, so the existing electrical setup must be intended for a Mega fuse with bolt-on attachment points. The SF51 type and copper tin plated construction are also part of the identification, which can help when comparing an old fuse to a replacement before ordering.

If you are replacing a blown fuse, it is best to confirm why the original failed before fitting another one of the same rating. A correctly rated 100A fuse protects the circuit as intended, but it will not address the underlying cause of an overload, short circuit, or damaged cable. Keeping a 5-pack on hand can be practical for workshops or maintenance vehicles, but the fuse should still be matched carefully each time.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number ACX6521 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type FUSE, Unit of Measure EACH, Warranty One Year, Amps 100A, Item Type Fuse, Product Group 2 FUSES BREAKERS RELAYS SWITCHES, Part No. ACX6521, Brand OEX, Description OEX Mega Fuse, 100A Bolt On - Pack of 5.

Additional published details for cross-checking include Length 68.5mm, Fuse Type Mega, Pack Qty 5, Product Group 1 AUTO ELEC ACCESSORIES.

OEX Mega Fuse, 100A Bolt On - Pack of 5. Part number ACX6521 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number ACX6521, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a fuse in workshop, fleet, trade, agricultural, or construction service, the listed electrical specification should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm compatibility by checking the part number ACX6521, the 100A rating, 32V DC specification, Mega fuse format, 68.5mm length, and 50.8mm centre-to-centre mounting before purchase.

FAQ

What is the part number for this fuse?

The listed part number is ACX6521. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.

How many fuses are included in the pack?

This listing is for a pack of 5. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.

What is the amperage rating?

Each fuse is rated at 100A. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.

What voltage is specified?

The fuse is specified at 32V DC. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.

What mounting measurement should be checked?

The mounting is listed at 50.8mm centre to centre. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.

Is there a single-pack version available?

Yes. A single pack is also listed as ACX6521BL. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering. For this listing, part number ACX6521 is the main reference point. These details should still be checked against the original unit before ordering.