The 70R4406S straight female O-ring fitting is built for dependable performance in mobile air conditioning systems. Because it uses an O-ring sealing surface, it helps reduce refrigerant leaks while maintaining proper system pressure.
In addition, the straight configuration allows for clean hose routing in tight engine compartments. As a result, this fitting is frequently used across on-highway trucks and vocational equipment tied to major OEM platforms such as Volvo, Mack, Navistar, and Paccar.
For best results, always install with compatible barrier hose and follow standard HVAC service procedures.
Key Features
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Straight female O-ring refrigerant fitting
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Heavy-duty steel construction
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Designed for #6 hose connections
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O-ring seal helps prevent leaks
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Suitable for truck and off-highway HVAC systems
Product Specifications
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Part Number: 70R4406S
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Factory Part Number: RD-5-6838-0P
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Fitting Type: Female O-Ring
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Configuration: Straight
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Material: Steel
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Thread Size: 5/8″-18
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Fitting Size: #6
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Hose Size: #6
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Port: N/A
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Condition: New
Major OEM & Manufacturer Part Numbers
This fitting directly crosses to several major heavy-duty manufacturers, making it valuable for OEM-driven searches:
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Volvo: RDHRD568380P
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Mack: 4379-RD568380
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Navistar / IHC: 1676797C1, ZGG19089S
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Paccar: D2054-2551
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Alliance: ABP N83 311806
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Air Source / MEI: 4402S
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Truck Air: 08-6061BS
Cross References
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Texas Truck AC: 550-SB3510
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AirSource / MEI: 4402S
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ATCO: SB1301
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Bergstrom: 550999
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CoolStar / MEI: 605-5061
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Euclid: E-808830-6
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Four Seasons: 14116
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JBAR: 405380
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Kysor: 2612201
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Kysor (Old): 409022
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Omega: 35-S1301
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Primatech: PTAC4402S
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Roadforce: RF660B409738
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Truck Air / MEI: 08-6061BS
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TruckAC+: T1562
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TTA/C: 40-SB1301
Interchange Numbers
08-6061BS, 1676797C1, 232-8058, 2612201, 409022, 4379-RD568380, 4379-RD568380P, 4402S, 5022-3401, 550-SB3510, 605-5061, 676429-06, 70R4406S, ABP N83 311806, D2054-2551, E-808830-6, FT35061, RDHRD568380P, RDT70R4406S, ZGG19089S
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