Identify Sea-Dog 2/0 & 4/0 AWG Marine Battery Cables

Sea-Dog 2/0 and 4/0 bulk marine battery cables can look similar in product photographs but belong to separate wire-gauge families. The 8021 range identifies 2/0 AWG; 8041 identifies the larger 4/0 AWG. Use the original part number, stated gauge, colour and spool length to identify the corresponding catalog listing.

Identify Sea-Dog cable by MPN, colour and length

The chart helps identify the original Sea-Dog spool. The same cable colour can exist in several gauges and lengths.

Common marine cable construction

Sea-Dog specifies annealed, finely stranded tinned copper for corrosion resistance and flexibility in marine installations. Its battery cable is oil-resistant, UL-listed boat cable, made in the USA, with a published 600V insulation rating and temperature ratings of 105°C dry / 75°C wet. This is bulk cable without fitted battery lugs, clamps or auxiliary wires.

The Sea-Dog battery cable manufacturer's chart identifies the gauges, colour combinations, spool lengths and standard packs.

What to verify on an original cable

1. Read the original Sea-Dog number on the packaging or reel, where available, rather than estimating wire gauge from how heavy the cable appears.
2. Check the exact gauge, length and insulation colour in the comparison table. A matching colour does not prove the cable is the correct size.
3. Confirm the listing is a bulk, unassembled cable spool, not a prefabricated cable with terminals already attached.
4. Inspect the installation's lug and stud sizes, and obtain the correct approved termination components for the selected gauge.
5. Determine cable current and voltage-drop requirements from the installed equipment before reusing or modifying wiring.

Exact Sea-Dog catalog listings

Each product card opens the corresponding UsedRVParts listing. Check its stated condition and availability; viewing or pickup in Kelowna is by appointment.

Black cable spools

Sea-Dog 8021010

2/0 AWG • black jacket • 25-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8021011

2/0 AWG • black jacket • 50-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8021012

2/0 AWG • black jacket • 100-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041010

4/0 AWG • black jacket • 25-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041011

4/0 AWG • black jacket • 50-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Red cable spools

Sea-Dog 8021020

2/0 AWG • red jacket • 25-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8021021

2/0 AWG • red jacket • 50-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8021022

2/0 AWG • red jacket • 100-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041020

4/0 AWG • red jacket • 25-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041021

4/0 AWG • red jacket • 50-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041022

4/0 AWG • red jacket • 100-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Yellow cable spools

Sea-Dog 8021031

2/0 AWG • yellow jacket • 50-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8021032

2/0 AWG • yellow jacket • 100-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Sea-Dog 8041032

4/0 AWG • yellow jacket • 100-foot spool of tinned, fine-strand marine battery cable.

Check condition and stock

Related marine battery wiring references

For a different type of marine battery lead, compare Ancor cable assemblies by exact MPN and lug size. For making a correctly sized termination, see Ancor ring terminals by gauge and stud hole. Sea-Dog's battery-terminal cover identification chart covers protection around compatible finished connections.