Coolant

Heater Line Repair Products

HL427

Heater Line Repair Kit

Perfect For Vans, SUVs And Other Vehicles With Failed Rear Heater Lines And Systems

HL427 Advantages:

  • Repair damaged heater lines including pinholes, cracks, kinks and more
  • Covers most common SAE and metric lines including 1/2", 5/8", 13 mm and 16 mm. Also available for 3/4" applications (sold seperately)
  • Make connections easily by hand; no specialty tools required
  • OEM style hose easy to route
  • On-the-car repairs made simple

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Tackle Different Repairs

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Easy Installation

Typical installations can be completed in less than 5 minutes. It’s simple as 1,2,3!
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Double Seal Technology

Features “Double Seal” Technology
with O-Ring and Interchangeable Ferrule

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HL427 Kit Includes

Product PDF

Bold items included in HL427 Kit | Italic items are available to order.

Image Part# Line Size Description Qty

HL12

1/2″ (13 mm)

1/2″ Heater Compression Union

1

HL58

5/8″ (16 mm)

5/8″ Heater Compression Union

1

HL34

3/4″

3/4″ Heater Compression Union

Bold items included in HL427 Kit | Italic items are available to order.

Image Part# Line Size Description Qty

HL11212

1/2″ (13 mm)

1/2″ Hose to 1/2″ Compression Union

2

HL11258

5/8″ (16 mm)

1/2″ Hose to 5/8″ Compression Union

2

HL11234

3/4″

1/2″ Hose to 3/4″ Compression Union

Bold items included in HL427 Kit | Italic items are available to order.

Image Part# Line Size Description Qty

HL12H

Universal

1/2″ Heater Hose 10′ Roll

10

HL12H25

Universal

1/2″ Heater Hose 25′ Roll

HL34C

3/4″

3/4″ Heater Hose Dual Clamp (use with 1/2″ heater hose)

4

SP34

3/4″

3/4″ Heater Hose Spring (use with 1/2″ heater hose)

1

Bold items included in HL427 Kit | Italic items are available to order.

Image Part# Line Size Description Qty

CP360

Up to 1″ O.D.

360° Seal Clamp Pliers

1

Where to Buy