3/8in Hose to 1/2in Pipe Air Brake Hose Mender Kit
A complete mender kit for repairing 3/8" air brake hose at a 1/2" pipe thread fitting. When an air brake hose fails at the coupling, cutting out the damaged section and installing a new mender is faster and less expensive than replacing the entire hose run. This kit includes everything needed to make that repair at the 3/8" hose to 1/2" pipe connection point.
What's Included
- Air brake hose mender fitting — sized for 3/8" hose to 1/2" pipe thread connection
- All components needed to complete the mender repair in one kit
Specifications
| Hose size | 3/8" |
| Pipe thread size | 1/2" NPT |
| Application | Air brake hose repair — commercial trucks and trailers |
| Kit type | Hose mender repair kit |
| SKU | 4120R-6D-RK |
Best For
- Commercial truck and trailer repair shops — air brake hose failures at coupling points are a common roadside and shop repair; a mender kit gets the vehicle back in service without a full hose replacement
- Fleet maintenance operations — stocking mender kits in multiple sizes keeps trucks on the road rather than waiting for parts delivery
- Mobile service technicians — compact, self-contained kit that belongs in a service truck's inventory for DOT-required brake system repairs
Need the same mender at 3/8" hose to 3/8" pipe thread? See the 3/8" to 3/8" Air Brake Hose Mender Kit (4120R-6C-RK). Questions about which kit fits your application? Contact us.
About Air Brake Hose Mender Repairs
Air brake hose mender kits are designed to repair a hose that has failed at or near the end fitting — without replacing the entire hose assembly. The damaged section of hose is cut out, and the mender fitting is installed in its place, restoring the air circuit.
Selecting the correct kit requires matching two dimensions: the outside diameter of the hose being repaired, and the pipe thread size of the fitting the hose connects to. This kit covers 3/8" hose to 1/2" pipe thread. Verify both measurements before ordering to ensure a proper fit. All air brake repairs should conform to FMVSS 121 and applicable DOT requirements.
Not sure which kit you need? Contact us and we can help you identify the right mender size for your application.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with a quarterly restock cadence and custom pricing — contact us
3/8in Hose to 1/2in Pipe Air Brake Hose Mender Kit
A complete mender kit for repairing 3/8" air brake hose at a 1/2" pipe thread fitting. When an air brake hose fails at the coupling, cutting out the damaged section and installing a new mender is faster and less expensive than replacing the entire hose run. This kit includes everything needed to make that repair at the 3/8" hose to 1/2" pipe connection point.
What's Included
- Air brake hose mender fitting — sized for 3/8" hose to 1/2" pipe thread connection
- All components needed to complete the mender repair in one kit
Specifications
| Hose size | 3/8" |
| Pipe thread size | 1/2" NPT |
| Application | Air brake hose repair — commercial trucks and trailers |
| Kit type | Hose mender repair kit |
| SKU | 4120R-6D-RK |
Best For
- Commercial truck and trailer repair shops — air brake hose failures at coupling points are a common roadside and shop repair; a mender kit gets the vehicle back in service without a full hose replacement
- Fleet maintenance operations — stocking mender kits in multiple sizes keeps trucks on the road rather than waiting for parts delivery
- Mobile service technicians — compact, self-contained kit that belongs in a service truck's inventory for DOT-required brake system repairs
Need the same mender at 3/8" hose to 3/8" pipe thread? See the 3/8" to 3/8" Air Brake Hose Mender Kit (4120R-6C-RK). Questions about which kit fits your application? Contact us.
About Air Brake Hose Mender Repairs
Air brake hose mender kits are designed to repair a hose that has failed at or near the end fitting — without replacing the entire hose assembly. The damaged section of hose is cut out, and the mender fitting is installed in its place, restoring the air circuit.
Selecting the correct kit requires matching two dimensions: the outside diameter of the hose being repaired, and the pipe thread size of the fitting the hose connects to. This kit covers 3/8" hose to 1/2" pipe thread. Verify both measurements before ordering to ensure a proper fit. All air brake repairs should conform to FMVSS 121 and applicable DOT requirements.
Not sure which kit you need? Contact us and we can help you identify the right mender size for your application.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with a quarterly restock cadence and custom pricing — contact us
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A complete mender kit for repairing 3/8" air brake hose at a 1/2" pipe thread fitting. When an air brake hose fails at the coupling, cutting out the damaged section and installing a new mender is faster and less expensive than replacing the entire hose run. This kit includes everything needed to make that repair at the 3/8" hose to 1/2" pipe connection point.
What's Included
- Air brake hose mender fitting — sized for 3/8" hose to 1/2" pipe thread connection
- All components needed to complete the mender repair in one kit
Specifications
| Hose size | 3/8" |
| Pipe thread size | 1/2" NPT |
| Application | Air brake hose repair — commercial trucks and trailers |
| Kit type | Hose mender repair kit |
| SKU | 4120R-6D-RK |
Best For
- Commercial truck and trailer repair shops — air brake hose failures at coupling points are a common roadside and shop repair; a mender kit gets the vehicle back in service without a full hose replacement
- Fleet maintenance operations — stocking mender kits in multiple sizes keeps trucks on the road rather than waiting for parts delivery
- Mobile service technicians — compact, self-contained kit that belongs in a service truck's inventory for DOT-required brake system repairs
Need the same mender at 3/8" hose to 3/8" pipe thread? See the 3/8" to 3/8" Air Brake Hose Mender Kit (4120R-6C-RK). Questions about which kit fits your application? Contact us.
About Air Brake Hose Mender Repairs
Air brake hose mender kits are designed to repair a hose that has failed at or near the end fitting — without replacing the entire hose assembly. The damaged section of hose is cut out, and the mender fitting is installed in its place, restoring the air circuit.
Selecting the correct kit requires matching two dimensions: the outside diameter of the hose being repaired, and the pipe thread size of the fitting the hose connects to. This kit covers 3/8" hose to 1/2" pipe thread. Verify both measurements before ordering to ensure a proper fit. All air brake repairs should conform to FMVSS 121 and applicable DOT requirements.
Not sure which kit you need? Contact us and we can help you identify the right mender size for your application.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with a quarterly restock cadence and custom pricing — contact us
