Identifying an existing marine wire connector starts with its wire size, construction and pack code. Ancor's regular heat-shrink butt connectors come in several AWG ranges; a separate step-down family joins different wire sizes. Use the part-number table to find the correct product rather than choosing by the colour of an old sleeve alone.
What type of connector did you remove?
For joining conductors within the connector's specified AWG range. Match the actual wire size at both ends.
Different-sized barrels accept the manufacturer's stated conductors at each end. Confirm the exact combination.
Mixed sets for repair or maintenance work when more than one wire gauge is involved.
Standard 309-series MPN reference
Compare the package label to these exact part numbers.
| MPN | Wire size | Pieces | Construction |
|---|---|---|---|
| 309025 | 22–18 AWG | 25 | Same gauge range at both ends |
| 309099 | 22–18 AWG | 100 | Same gauge range at both ends |
| 309001 | 22–18 AWG | 250 | Same gauge range at both ends |
| 309199 | 16–14 AWG | 100 | Same gauge range at both ends |
| 309299 | 12–10 AWG | 100 | Same gauge range at both ends |
| 309325 | 8 AWG | 25 | Same gauge range at both ends |
Recognize a step-down connector
A step-down connector is not a general-purpose substitute for any two wire gauges.
Identify the assortment by pack count
| MPN | Included gauge groups | Pieces | Pack type |
|---|---|---|---|
| 220011 | 22–18 / 16–14 / 12–10 AWG | 75 | Mixed gauge sizes |
| 309000 | 22–18 / 16–14 / 12–10 AWG | 250 | Mixed gauge sizes |
220011: 25 connectors each in 22–18, 16–14 and 12–10 AWG. 309000: 50 in 22–18 AWG, 150 in 16–14 AWG and 50 in 12–10 AWG.
Check before using a replacement terminal
Confirm the original wire gauge and conductor type; choose a correctly sized marine terminal and crimp tool. Heat-shrink tubing should be fully recovered around each conductor according to the connector's instructions.
The 8 AWG connector has a different barrel size from the 22–18 AWG model even when packaging or colour cues look similar. Also check the manufacturer part number rather than confusing ordinary butt connectors with step-down multi-wire designs.
Find the matching Ancor listings
Open the matching MPN to review the current product listing and availability.
Ancor 309025
Identify by the 22–18 AWG conductor range and 25-piece package.
Check listing and availability
Ancor 309099
Identify by the 22–18 AWG conductor range and 100-piece package.
Check listing and availability
Ancor 309001
Identify by the 22–18 AWG conductor range and 250-piece package.
Check listing and availability
Ancor 309199
Identify by the 16–14 AWG conductor range and 100-piece package.
Check listing and availability
Ancor 309299
Identify by the 12–10 AWG conductor range and 100-piece package.
Check listing and availability
Ancor 309325
Identify by the 8 AWG conductor range and 25-piece package.
Check listing and availability
Ancor 320125
Step-down connection for unequal wire gauges, including the manufacturer's specified two-wire configuration.
Check listing and availability
Ancor 320225
Step-down version for the manufacturer's stated 16–14 and 12–10 AWG ends.
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Ancor 220011
Assortment case: 25 connectors in each of the three gauge groups.
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Ancor 309000
Assorted jar with 50 small, 150 medium and 50 large gauge connectors.
Check listing and availabilityRelated electrical identification guides
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