14 AWG M22759/32 Tefzel Wire for Motorsport Wiring
14 AWG M22759/32 Tefzel wire is the pump and fan gauge. Fuel pumps, cooling fans, PDM outputs and any relay circuit doing sustained work run in 14 AWG.
12Volt Motorsports stocks 14 AWG Tefzel wire by the metre for professional harness construction. We are based in Altona Meadows, Melbourne and ship Tefzel wire Australia-wide. M22759/32 is the wire known in the trade as Spec 55 (TE Raychem part series 55A0111), same specification, two names.
14 AWG Specifications
| Specification | M22759/32 (Spec 55, TE 55A0111) |
| Conductor | Tin plated copper, 2.08 mm2 |
| Working current | 21 A single conductor in free air, 30 degrees C rise. Derate for bundles |
| Insulation | Cross linked modified ETFE (Tefzel) |
| Rating | 600 V, rated to 150 degrees C |
Common 14 AWG Tefzel Wire Applications
| Application |
Suitability |
| Fuel pump feeds and grounds | Suitable. Run feed and ground both in 14 AWG, one circuit per pump |
| Cooling and intercooler fans | Suitable for most fan circuits, confirm the fan current draw |
| PDM high current outputs | Suitable for sustained load outputs |
| Main battery feeds | Usually too small. Use 12 AWG or battery cable for mains |
How Do I Choose the Right Tefzel Wire Size?
Wire size should be selected on current draw, circuit length, voltage drop, ambient temperature, bundling, connector rating, fuse rating and PDM current limit, not current draw alone. If the circuit carries significant current or runs a long distance through the vehicle, voltage drop may require a larger wire. Neighbouring gauges: 16 AWG and 12 AWG. Full range on the Tefzel wire and cable page.
For a detailed reference, download our Tefzel wire size, colour and ampacity chart.
Download the Tefzel Wire Size, Colour and Ampacity Chart
What Should I Use With 14 AWG Tefzel Wire?
14 AWG Tefzel is commonly used with Raychem DR25 outer sleeving, Sumitomo W5DL adhesive heatshrink at splices, Deutsch DTM connectors and ECU plugs and pins.
Why Buy Tefzel Wire From 12Volt Motorsports?
We are a Melbourne based motorsport wiring specialist and we run this exact wire in our own custom harness builds, ECU installations and PDM wiring. If you are unsure whether 14 AWG suits your circuit, contact us before ordering and we will spec the wire size, colours and quantities for you.
Frequently Asked Questions
Where can I buy 14 AWG Tefzel wire in Australia?
12Volt Motorsports stocks 14 AWG M22759/32 Tefzel wire in Australia, sold by the metre, shipped Australia-wide from Melbourne.
What is 14 AWG Tefzel wire used for?
Fuel pumps, cooling fans, PDM outputs and sustained load relay circuits.
How much current can 14 AWG Tefzel carry?
Around 21 amps for a single conductor in free air with a 30 degrees C rise. Derate for bundled runs and check voltage drop on long circuits.
What gauge for an E85 fuel pump?
14 AWG minimum per pump for common in tank pumps, feed and ground both. Twin pump setups should run one circuit per pump, not a shared feed.
Do you ship 14 AWG Tefzel wire Australia-wide?
Yes. We ship Australia-wide, usually same or next business day.
Related Motorsport Wiring Products
Need Advice?
Call us on 0458 102 134 or email 12voltmotorsports@gmail.com. We are happy to help you work out whether 14 AWG Tefzel wire is suitable for your wiring project.
