Dorman Fuse Blocks & Battery Fusible Links: Type and MPN Guide

Replacing a damaged fuse holder is different from replacing a blown battery fusible link. Dorman supplies both multi-position fuse blocks for glass or blade fuses and specific OE-style battery power-distribution parts. Identify the original mounting and fuse design before choosing a component that looks similar.

Know which electrical component needs replacement

Dorman fuse blocks and fusible links by MPN

Before buying or installing an electrical fuse component

1. Identify the original: Read the existing fuse block or fuse MPN, and use the vehicle's service documentation and wiring diagram where needed.
2. Compare fuse format: Glass-tube, blade and battery fusible-link assemblies have different terminal and mounting systems.
3. Check circuit requirements: Confirm individual fuse ratings, voltage, wiring, cover requirements and environmental protection. Not every battery block is appropriate for an exposed RV or marine location.
4. Check what is included: The two four-position Dorman holders include fuses and mounting hardware in the current listings; 924-680 is catalogued with terminals but without brackets, and 925-160 is one fuse only.
5. Service safely: Disconnect the relevant power source following vehicle manufacturer instructions, identify the fault that caused a fuse to open and have a qualified technician verify installation before energizing the circuit.

Frequently asked questions

Can Dorman 85668 replace 85666? Not without re-engineering the applicable fuse format and circuit. 85668 is for blade fuses and 85666 uses glass-tube fuses.

Does Dorman 925-160 include a fuse block? No. It is a single 40A, 12V DC fusible link; check the original terminal shape and exact vehicle application.

Is a Dorman battery fuse block a universal RV accessory fuse panel? No. OE-style battery distribution parts are application-specific. Verify vehicle fitment and mounting before ordering.

Shop the exact Dorman electrical components

The product cards below link to the identified UsedRVParts listings. Check each for condition, availability and components; catalog photographs are not a physical-condition assessment of the item offered.

Dorman 85666 — Four-position glass fuse block

Four glass-fuse locations; individual fuse ratings must match circuit. Glass fuses, mounting brackets and terminals.

Check exact item and condition

Dorman 85668 — Four-position blade fuse block

Four blade-fuse locations; individual fuse ratings must match circuit. Blade fuses, mounting brackets and terminals.

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Dorman 924-680 — Vehicle-specific battery fuse block

150A listed unit rating; match OE configuration. Terminals; mounting brackets not listed as included.

Check exact item and condition

Dorman 925-160 — 40A battery fusible-link fuse

40A, 12V DC; green housing. One fusible link, not a holder or complete fuse block.

Check exact item and condition

Other 12V fuse and power-distribution guides

For an RV converter or power centre rather than a standalone Dorman automotive holder, consult our WFCO 8700 and 8900 breaker and DC fuse guide. For marine battery terminal fuse holders, see the Blue Sea MRBF, MEGA and ANL holder comparison. These systems serve different circuits and should not be treated as interchangeable.