Auveco Butt Connectors

Auveco Butt Connectors: Reliable Splices for Automotive Electrical Work

When it comes to joining wires cleanly and securely in an automotive environment, the butt connector is one of the most fundamental tools in any technician's kit. Auveco — a brand with roots going back to 1916 — brings the same precision and durability to its butt connectors that professionals expect from over a century of automotive hardware engineering. Whether you're repairing a damaged harness, splicing in an accessory, or tackling a full rewire, Auveco's lineup addresses a wide range of gauge sizes and connection styles.

Product Lines That Cover Every Application

Auveco's butt connector offerings span several distinct styles, each engineered for specific electrical demands:

• KRIMP & Seal Butt Connectors – Available in multiple gauge ranges (including 22–18 GA red and 16–14 GA blue color-coded options), these sealed crimp connectors are designed to lock out moisture and resist loosening over time — ideal for underhood and exterior wiring repairs.
• Crimp & Solder Butt Connectors – Combining a crimp connection with an internal solder element, these connectors (such as the 24–22 GA clear version) deliver a dual-action bond for maximum conductivity and pull-out strength. Auveco also offers a step-down variant for joining two different gauge wires — for example, bridging 20–18 GA to 16–14 GA wire — a common need in automotive repairs where original harness gauges don't match replacement wiring.
• Crystal Clear Seal / Window Butt Connectors – Featuring a transparent housing, these connectors (such as the 12–10 AWG model) allow technicians to visually verify a complete, centered crimp before finalizing the connection — reducing the chance of a hidden cold crimp.
• Vinyl Insulated Butt Connectors – Classic solderless terminals in copper with an electro tin-plated finish for corrosion resistance, available in gauges ranging from fine wire up to heavy-duty 6 GA for battery cable applications.
• Closed End Butt Connectors – Designed to terminate a wire at a dead end rather than join two conductors, available in larger gauges such as 16–10 GA. Built with electrolytic copper and tin plating for long-term reliability.
• Flared Butt Battery Cable Wire Connectors – Heavy-gauge connectors (up to 2/0 GA) engineered to OEM standards for battery cable splicing, where current capacity and mechanical integrity are critical.

Why Auveco Stands Out in This Category

What distinguishes Auveco's butt connectors from generic alternatives is the brand's commitment to OEM-grade material standards. Their connectors use highest-grade electrolytic copper bodies with electro tin plating to resist corrosion — not cheaper alloys or aluminum substitutes. This matters in automotive applications where vibration, heat cycling, and moisture are constant threats to connection integrity.

Auveco also covers an unusually wide gauge range within a single product family, from fine 24 AWG signal wiring all the way up to 2/0 AWG heavy battery cables. This breadth makes it possible to source the right connector for virtually any vehicle repair from a single trusted supplier. Explore the full Auveco brand catalog or browse all butt connectors to find the right fit for your next electrical repair.