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GXL Wire

GXL wire is a single-conductor primary automotive wire designed for high-temperature environments, especially inside engine compartments. It is built with a bare copper conductor and insulated with cross-linked polyethylene (XLPE), giving it excellent flexibility and reliable performance under heat and vibration. GXL wire operates within a temperature range of –40°C to +125°C, carries a 50V rating, and maintains stability in both high-heat and very low-temperature conditions. This wire meets SAE J1128 requirements, ensuring dependable quality for demanding automotive applications.

8 items

GXL-20
Approx LBS/MFT6.00
AWG Size20
Cond. MaterialBare Copper
Conductor Stranding7/28
Copper LBS/MFT3
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.06 per FT 
GXL-18
Approx LBS/MFT8.00
AWG Size18
Cond. MaterialBare Copper
Conductor Stranding16/30
Copper LBS/MFT4.9
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.08 per FT 
GXL-16
Approx LBS/MFT11.50
AWG Size16
Cond. MaterialBare Copper
Conductor Stranding19/29
Copper LBS/MFT7.4
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.11 per FT 
GXL-14
Approx LBS/MFT16.00
AWG Size14
Cond. MaterialBare Copper
Conductor Stranding19/27
Copper LBS/MFT11.7
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.16 per FT 
GXL-12
Approx LBS/MFT24.00
AWG Size12
Cond. MaterialBare Copper
Conductor Stranding19/25
Copper LBS/MFT18.5
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.23 per FT 
GXL-10
Approx LBS/MFT37.00
AWG Size10
Cond. MaterialBare Copper
Conductor Stranding19/23
Copper LBS/MFT29.5
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.41 per FT 
GXL-08
Approx LBS/MFT68.00
AWG Size8
Cond. MaterialBare Copper
Conductor Stranding19/21
Copper LBS/MFT47
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.62 per FT 
GXL18-19B
AWG Size18
Chrysler SpecMS-8900
Cond. MaterialBare Copper
Conductor Stranding19/31
Ford SpecESB-M1L 85-B
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp125C
Min. Temp-40C
Starting at 0.06 

GXL Wire Details

GXL wire is a single-conductor primary automotive wire designed for use in high-temperature areas such as engine compartments. It is built with a stranded bare copper conductor and insulated with cross-linked polyethylene (XLPE), giving it the flexibility and durability needed to perform reliably under heat, vibration, and demanding operating conditions. GXL wire maintains a recommended operating temperature range of –40°C to +125°C and carries a 50V rating, making it suitable for automotive circuits that require stable performance in both extreme heat and low-temperature environments.

To learn more about GXL wire and how it is used across automotive applications, visit our Allied University article: All About GXL Wire.