74R2801 Inline Receiver Drier with Pressure Relief – Heavy-Duty Mobile A/C

The BTRAC 74R2801 Inline Receiver Drier protects mobile air conditioning systems by removing moisture and debris from the refrigerant circuit. As a result, it helps prevent corrosion, supports consistent cooling, and extends compressor life during demanding operation.

This receiver drier uses an inline configuration with #6 male O-ring fittings, which allows direct integration into common mobile A/C hose layouts. In addition, the top-mounted pressure-relief feature helps safeguard the system during abnormal pressure conditions, such as high ambient temperatures or heavy operating loads.

The cylindrical body measures 3 inches in diameter and 9 inches in overall length. Therefore, it provides adequate desiccant capacity while maintaining a compact form that fits well in tight engine compartments. At the same time, the inline design supports straightforward service and replacement.

Based on confirmed OEM markings shown on the image and validated interchange usage, this receiver drier is commonly used on Mack® truck platforms. Because these vehicles often operate under long duty cycles, the 74R2801 delivers dependable moisture control and reliable A/C performance.

Key Features

• Heavy-duty inline receiver drier for mobile A/C systems

• #6 male O-ring inlet and outlet

• Top pressure-relief port for added system protection

• 3″ diameter × 9″ length cylindrical body

• Compatible with R-134a refrigerant

• Commonly used on Mack® trucks

Specifications

• Receiver Type: Inline receiver drier

• Body Diameter: 3 inches

• Overall Length: 9 inches

• Inlet Connection: #6 male O-ring

• Outlet Connection: #6 male O-ring

• Pressure Relief: Top-mounted

• Refrigerant Compatibility: R-134a

• Application Type: Mobile / heavy-duty A/C systems

OEM Application Notes

Based on confirmed configuration and validated interchange positioning, the 74R2801 receiver drier is commonly used in:

• Mack® on-highway trucks

• Fleet and vocational vehicles using inline receiver driers

• Mobile HVAC systems requiring pressure-relief protection

• Heavy-duty A/C applications with extended operating hours

Applications are confirmed at the system level and are intended for service identification rather than VIN-specific fitment.

Interchange Numbers

1911505511, 74R2801, 7753-08836001, ABP N83 319263