Description
Suction Line for Chevrolet Kodiak & GMC Topkick (1998–2002)
A direct-fit A/C suction line for the 1998–2002 Chevrolet C6500/C7500 Kodiak and GMC C6500/C7500 Topkick. It carries low-pressure refrigerant vapor from the evaporator back to the compressor — replace a cracked or leaking line to bring cooling back.
The low-pressure return to the compressor
The suction line is the low-pressure side of the A/C loop. It routes cool refrigerant vapor leaving the evaporator back to the compressor, so the compressor can circulate it again.
On these medium-duty trucks it’s a formed line assembly. When it corrodes, cracks or leaks at a fitting, the system loses charge and cooling falls off — replacing the line is a common fix to get the A/C holding pressure again.
Know exactly what you’re ordering
The details that decide whether this line matches your truck:
One line, four models
Restores proper suction flow
Carries low-pressure refrigerant vapor from the evaporator back to the compressor — a cracked, corroded or leaking suction line is a common cause of weak cooling and lost charge.
Direct-fit replacement
Formed to match the original routing and connections on these Kodiak and Topkick trucks.
Kodiak & Topkick
Covers the Chevrolet C6500/C7500 Kodiak and the GMC C6500/C7500 Topkick from 1998–2002.
Wide cross-reference
Cross-references UAC, AC Delco, GM and Omega numbers — see the table below.
Fixes a common failure
Replacing a leaking line is one of the most common fixes for an A/C system that won’t hold a charge.
Medium-duty application
Serves the A/C system on these medium-duty GM cab-and-chassis trucks.
Vehicle applications
This suction line covers the Chevrolet Kodiak and its GMC Topkick twin:
| Make & model | Years |
|---|---|
| Chevrolet C6500 Kodiak | 1998–2002 |
| Chevrolet C7500 Kodiak | 1998–2001 |
| GMC C6500 Topkick | 1998–2002 |
| GMC C7500 Topkick | 1998–2002 |
C7500 applications for 2001–2002 are listed with the 7.2L L6 (C7H042 / C7H064). Confirm your exact year, model and engine before ordering.
Interchange & cross-reference numbers
This suction line cross-references the following OEM and aftermarket numbers. Listed for identification only.
| Brand | Part number(s) |
|---|---|
| UAC | HA 114345C |
| AC Delco | 1530259 |
| General Motors | 15956086 |
| Omega | 3463479 |
Details
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FAQ
What does the suction line do?
Will it fit my truck?
Is this the suction line only?
How do I know my suction line is bad?
Do I need to replace anything else?
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Talk to our team in Mesa, AZ — whichever way is easiest for you.
All manufacturer names and part numbers are trademarks of their respective owners and are listed for identification and cross-reference purposes only; their use does not imply affiliation or endorsement. Confirm your year, model and application before ordering.
