Description
SEALCO CONTROL LINE VALVE – DOLLY & TURNABLE AXLE APPLICATIONS
PART NUMBER(S):
Fleet Products: 110570-G (New) | OE: Sealco 110570, Haldex RB000, Meritor RSL110570
DESCRIPTION:
Model: Control Line Valve with Dolly Port
Vehicles: Converter dollies, turntable axles, pull-type and B-train trailers
• Control Port: 3/8" NPT
• Reservoir Port: 1/2" NPT
• Delivery Ports: (2) x 3/8" NPT
• Dolly Port: 3/8" NPT (balanced control output)
• Number of Ports: 4
• Crack Pressure: 0.0 PSI
• Mounting: Standard bracket (110570), reversed bracket (110571), or no bracket (110690)
• Construction: Heavy-duty metal body with internal check valve
• Function: Provides balanced control line pressure across trailer axles for even braking response
• Compliance: Meets FMVSS 121 Docket 90-3
Applications:
Is this the right valve for your dolly or turntable setup? Yes—this Sealco 110570-G delivers balanced control air pressure for converter dollies and multi-axle trailers. It ensures synchronized brake application and release across axles, reducing brake drag, improving stability, and maintaining consistent performance in B-train or pull-type combinations.
CROSS-REFERENCE(S):
Sealco 110570, 110571, 110606, 110690, Haldex RB000, Meritor RSL110570, Euclid ESL110570, Aurora SEA110570, Automann 170.110570, TRP TRP110570, FleetPride FP110570, Traction SEL110570, World American WA110570, Genuine Newstar 110370, SEA110570, GTA-110570, KN28300, KN28300X, MBI287114X, H287114X, 287114, 287114R, E-SL110570, 55110570, RB-110570, 51401, 51402, 650-RSL110570
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Plug all unused ports before installation to prevent leaks.
✔ Connect the port marked “Dolly” for converter dolly or turntable axle control.
✔ Verify bracket configuration: 110570 (standard), 110571 (reversed), or 110690 (no bracket).
✔ Replace as a complete valve assembly—no repair kits available.
✔ Install per FMVSS 121 Docket 90-3 standards to ensure system compliance.
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Warranty Information
