Motorsport Heatshrink for Wiring Harnesses
12Volt Motorsports supplies heatshrink products for motorsport wiring, ECU installations, engine bay looms, custom harness builds, sealed splices, connector exits and harsh-environment automotive electrical work.
Our heatshrink range includes Raychem DR25 harness sleeving, Raychem ATUM adhesive heatshrink, Sumitomo W5DL dual-wall adhesive heatshrink and related harness protection products used in professional motorsport wiring systems.
We are based in Altona Meadows, Melbourne and ship motorsport heatshrink Australia-wide.
What Heatshrink Should I Use for Motorsport Wiring?
The correct heatshrink depends on the job. Outer harness sleeving, sealed splices, connector exits, branch transitions and strain relief all use different products.
| Product |
Best Used For |
| Raychem DR25 |
Outer harness sleeving for motorsport wiring, engine bay looms and harsh-environment harness protection |
| Raychem ATUM |
Adhesive-lined sealing, strain relief, connector exits and larger transitions |
| Sumitomo W5DL |
Compact dual-wall adhesive heatshrink for sealed splices, small connector exits and tight branch transitions |
| Raychem moulded boots |
Professional harness branch transitions, connector backshells and strain relief where a shaped boot is required |
| Adhesive-lined heatshrink |
Sealing, splice protection, strain relief and finishing where moisture or fluid resistance is required |
Raychem DR25 Heatshrink
Raychem DR25 is used as the outer sleeve on motorsport wiring harnesses. It is commonly used for ECU harnesses, engine bay looms, race car wiring, drag car wiring, off-road wiring and harsh-environment cable protection.
DR25 is the main harness sleeving product used to protect the wire bundle from heat, abrasion, oils, fuels and engine bay conditions. It is commonly paired with M22759/32 Tefzel wire, adhesive-lined heatshrink, moulded boots, labels and professional harness documentation.
Shop Raychem DR25 Heatshrink
Adhesive Heatshrink for Sealing and Strain Relief
Adhesive-lined heatshrink is used where the harness needs sealing, strain relief or a clean finished transition. Products like Raychem ATUM and Sumitomo W5DL are commonly used at connector exits, splice points, branch transitions and sections where a sealed finish is needed.
DR25 is normally used as the main outer sleeve. Adhesive heatshrink is then used at key points where the sleeve needs to be finished, sealed or supported.
Heatshrink as Part of a Complete Harness System
Motorsport heatshrink is not used on its own. It is normally part of a complete wiring system that includes M22759/32 Tefzel wire, Raychem DR25, Raychem ATUM, Sumitomo W5DL, moulded boots, Deutsch connectors, ECU plugs, terminals, labels and documentation.
Choosing the correct heatshrink helps protect the harness, support branch transitions, seal splices, reduce strain at connector exits and improve long-term serviceability.
For a quick reference, download our heatshrink selection guide.
Download the Heatshrink Selection Guide
Why Buy Motorsport Heatshrink From 12Volt Motorsports?
12Volt Motorsports is a Melbourne-based motorsport wiring specialist. We do not just sell heatshrink, Tefzel wire and connectors. We use these products in real custom wiring harness builds, ECU installations, PDM wiring, engine bay wiring and motorsport electrical systems.
If you are unsure what DR25 size, adhesive heatshrink, boot, connector or harness material you need, contact us before ordering. We can help you choose the right products for your wiring project.
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 what heatshrink, DR25 size, adhesive product or related harness material you need for your build.
Frequently Asked Questions
Where can I buy motorsport heatshrink in Australia?
12Volt Motorsports stocks motorsport heatshrink in Australia, including Raychem DR25, Raychem ATUM, Sumitomo W5DL and harness protection products. We are based in Melbourne and ship Australia-wide.
What heatshrink should I use for motorsport wiring?
Raychem DR25 is commonly used as the outer harness sleeve. Adhesive-lined heatshrink such as Raychem ATUM or Sumitomo W5DL is commonly used for sealing, splice protection, strain relief and connector exits.
What is Raychem DR25 used for?
Raychem DR25 is used as outer harness sleeving for motorsport wiring harnesses, ECU looms, engine bay wiring and harsh-environment automotive electrical systems.
What is adhesive-lined heatshrink used for?
Adhesive-lined heatshrink is used where sealing, strain relief or a finished transition is required. It is commonly used at connector exits, branch points, splice joints and harness transitions.
What is the difference between DR25 and adhesive heatshrink?
DR25 is normally used as the main outer sleeve over the harness bundle. Adhesive heatshrink is used at selected points for sealing, splice protection, strain relief and finishing.
Do you ship heatshrink Australia-wide?
Yes. We ship motorsport heatshrink to Sydney, Brisbane, Adelaide, Perth, Canberra, Hobart, Darwin and everywhere in between.
