Coolshirt Rally System Retrofit Kit

• Connection conversion kit for Coolshirt 2-person rally systems manufactured prior to 2024
• Replaces 2 bulkheads (cooler-side hose connection points)
• Replaces 6 hose connectors (4 female, 2 male) for the Y-hose split
• Replaces 4 male garment connectors (2 per occupant)
• Upgrades from retired Coolshirt connectors to current CPC American-made connectors
• Standardizes both driver and co-driver gear for easier future part sourcing
• Cost-effective alternative to replacing a functional 2-person cooling unit

The Coolshirt® Rally System Retrofit Kit is a connection conversion kit built for Coolshirt's 2-person rally cooling systems manufactured prior to 2024. If you're running an older Rally setup serving both driver and co-driver and finding it harder to source matching connectors, or you want your system to align with Coolshirt's current connector lineup for easier future part-sourcing, this kit handles the upgrade in one purchase.
The kit replaces the connection points throughout the system: 2 bulkheads (the fittings where hose meets the cooling unit), 6 hose connectors (4 female and 2 male — covering the Y-hose split to both occupants), and 4 male garment connectors (2 per occupant). All retired Coolshirt connectors are swapped for upgraded CPC American-made connectors — the same connector standard used across Coolshirt's current hose, garment, and cooler product lines.
This retrofit is a practical option for rally teams with an otherwise functional cooling unit who don't want to replace the whole system just to modernize the connectors. It also simplifies future maintenance for both occupants' gear, since replacement hoses, garments, and accessories purchased going forward will already match the upgraded fitting standard rather than requiring you to track down older, retired connector types.