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GPTM Primary Wire

Our GPTM Marine Primary Wire comes with either a tinned or bare copper conductor. Both constructions feature PVC insulation and meet Chrysler Spec MS-3450 and Ford Spec M1L-56A. Both constructions also have a maximum temperature of 105 C, come in a variety of colors, and are suitable for use as general circuit wiring in marine applications. 

12 items

GPTM 18
Approx LBS/MFT8.35
AWG Size18
Chrysler SpecMS-3450
Cond. MaterialBare Copper
Conductor Stranding16/30
Copper LBS/MFT5
Ford SpecM1L-56A
Insul. MaterialPolyvinylchloride (PVC)
Starting at 0.10 per FT 
GPTM 18 16T
Approx LBS/MFT8.35
AWG Size18
Cond. MaterialTinned Copper
Conductor Stranding16/30
Insul. MaterialPolyvinylchloride (PVC)
Max. Temp105C
No. of Strands16
Nom. Insul. Thick. (in)0.023
Starting at 0.09 per FT 
GPTM 16
Approx LBS/MFT11.1
AWG Size16
Chrysler SpecMS-3450
Cond. MaterialBare Copper
Conductor Stranding19/29
Copper LBS/MFT8
Ford SpecM1L-56A
Insul. MaterialPolyvinylchloride (PVC)
Starting at 0.12 per FT 
GPTM 16 19T
Approx LBS/MFT11.10
AWG Size16
Cond. MaterialTinned Copper
Conductor Stranding19/29
Insul. MaterialPolyvinylchloride (PVC)
Max. Temp105C
No. of Strands19
Nom. Insul. Thick. (in)0.023
Starting at 0.14 per FT 
GPTM 14
Approx LBS/MFT16.2
AWG Size14
Chrysler SpecMS-3450
Cond. MaterialBare Copper
Conductor Stranding19/27
Copper LBS/MFT12
Ford SpecM1L-56A
Insul. MaterialPolyvinylchloride (PVC)
Starting at 0.19 per FT 
GPTM 14 19T
Approx LBS/MFT16.20
AWG Size14
Cond. MaterialTinned Copper
Conductor Stranding19/27
Copper LBS/MFT12.0
Insul. MaterialPolyvinylchloride (PVC)
Max. Temp105C
No. of Strands19
Starting at 0.18 per FT 
GPTM 12
Approx LBS/MFT24.5
AWG Size12
Chrysler SpecMS-3450
Cond. MaterialBare Copper
Conductor Stranding19/25
Copper LBS/MFT20
Ford SpecM1L-56A
Insul. MaterialPolyvinylchloride (PVC)
Starting at 0.30 per FT 
GPTM 12 19T
Approx LBS/MFT24.50
AWG Size12
Cond. MaterialTinned Copper
Conductor Stranding19/25
Copper LBS/MFT18
Insul. MaterialPolyvinylchloride (PVC)
Max. Temp105C
No. of Strands19
Starting at 0.28 per FT 

GPTM Marine Primary Wire Specifications

GPTM Construction:

  • Conductor:Stranded Copper, either Bare or Tinned
  • Insulation:Polyvinylchloride (PVC)

GPTM Approvals and Ratings:

  • SAE Specifications: SAE J-1128, SAE J378
  • Chrysler Specification: Chrysler Spec MS-3450
  • Ford Specification: Ford Spec M1L-56A
  • Temperature Rating: 105°C

GPTM Features:

  • Marine spec printed: “Marine GPT SAE J378 and SAE J1128 105°C _ AWG”
  • Meets Chrysler Spec MS-3450 and Ford Spec M1L-56A
  • Available in a variety of colors: Black, Brown, Red, Orange, Yellow, Light Green, Dark Green, Light Blue, Dark Blue, Purple, Gray, White, Tan, and Pink