WireGarage 20 AWG GXL XLPE Stranded Automotive Wire, 12×10ft Color Kit — High‑Temp 125°C

WireGarage High-Temp GXL stranded wire is a 20 AWG, cross-linked polyethylene (XLPE) insulated automotive wire sold as twelve 10-foot color-coded lengths (120 feet total) and built for heat, chemicals, and abrasion resistance.

This kit supplies a range of solid colors in 20 AWG stranded copper, ideal for wiring harnesses, repairs, and custom electrical runs where durability matters. The insulation is a chemically cross-linked polyethylene formulation that stands up to elevated temperatures, oils, gasoline, solvents and routine mechanical wear. It’s made to meet the SAE J1128 expectations for automotive use and is commonly chosen for engine-bay and other high-temperature zones.

How does this wire hold up in high-temperature engine compartments?

The XLPE insulation in this WireGarage GXL wire is engineered for elevated heat exposure, rated from -40°C up to 125°C (257°F). That rating helps maintain insulation integrity under typical engine-bay thermal cycles and brief temperature spikes. The insulation resists softening and cracking that can occur with lower-grade materials.

• Temperature rating: -40°C to 125°C (257°F)
• Cross-linked polyethylene resists heat deformation
• Maintains flexibility across cold-to-hot transitions

Is this wire suitable for automotive and motorcycle electrical systems?

Yes—this 20 AWG stranded copper wire is sized and constructed for many automotive and motorcycle circuits, especially signal, sensor, and accessory lines. It complies with the SAE J1128 standard commonly referenced for automotive low-voltage wiring, making it appropriate for repairs and custom harnesses. Stranded copper offers better flex and vibration resistance compared with solid conductors.

• Conductor: multi-stranded copper for flexibility
• Meets SAE J1128 standard for automotive wiring
• Good for sensors, grounds, lighting, and accessory circuits

What chemical and abrasion protection does the insulation provide?

The smooth XLPE jacket resists common automotive chemicals and physical wear to reduce premature failures. It’s formulated to stand up to gasoline, oil, solvents, grease, and most acids, and the smooth finish lowers chafing against routed harness surfaces. That makes it a practical choice where wires pass near sharp edges, clamps, or moving components.

• Resistant to gasoline, oils, and common solvents
• Smooth finish minimizes abrasion and chafe
• Durable against routine mechanical wear and exposure

How is the set packaged and what colors/sizes are included?

This bundle contains twelve individual 10-foot lengths—one of each solid color—totaling 120 feet of wire. Colors allow for easy circuit identification during builds or repairs, helping reduce wiring errors and speeding troubleshooting. Note that exact color assortment may vary slightly between packages.

• 12 solid colors, 10 feet each (120' total)
• Gauge: 20 AWG (stranded copper conductor)
• Ideal for color-coding wiring harnesses and prototypes

Who is this for? This WireGarage GXL 20 AWG kit is aimed at automotive and motorcycle DIYers, professional installers, and electronics hobbyists who need flexible, heat-resistant stranded wire for engine-bay runs, accessory installs, and custom harnesses. If you require color-coded lengths for neat, reliable wiring that resists heat, chemicals, and abrasion while meeting SAE J1128 guidance, this set is a straightforward, ready-to-use option.