Keep hydraulic assist flowing between the pump and the hydroboost unit with the Sunsong Power Steering Pressure Line Hose Assembly 3401260. This is the pump-to-hydroboost pressure line, carrying pressurized power steering fluid from the pump to the hydroboost brake booster on the 2001-2010 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD, the 2001-2006 Chevrolet Silverado 3500 and GMC Sierra 3500, the 2007 Silverado 2500 HD Classic and 3500 Classic, and the 2007-2010 Silverado 3500 HD and Sierra 3500 HD. See the Buyer's Guide tab for the full application list and engine details.
If a leaking, chafed, or failing pump-to-hydroboost pressure line is the cause of hard steering, whining, or fluid loss, this assembly replaces it.
Interchange: 36-358980 · 2647-273106 · 979-2020
36358980 · 2647273106 · 9792020 · 35898 · 80337 · 80337E · 358980 · 15113471 · 15295851 · 15772445 · 20930009 · 73427 · 1246 · 13401260
This part cross-references / interchanges with the following part numbers:
What does this hose do?
It is the pump-to-hydroboost pressure line, carrying pressurized power steering fluid from the pump to the hydroboost unit. Sunsong MPN 3401260.
Which vehicles does it fit?
It fits the 2001-2010 Chevrolet Silverado/GMC Sierra 2500 HD, 2001-2006 Silverado/Sierra 3500, 2007 Classic models, and 2007-2010 Silverado/Sierra 3500 HD. See the Buyer's Guide tab.
Does it come pre-assembled?
Yes. The hose is pre-assembled with brackets so it installs ready to fit, reducing labor time versus versions sold as individual hoses.
What are its pressure ratings?
Sunsong lists a max working pressure of 1,500 psi, a burst pressure rating of 8,700 psi, and a tensile strength of 1,600 lb.
What are signs this line may need replacing?
Power steering fluid leaks, chafing or damage to the hose, whining, or hard steering. Diagnose the cause first; if this line is at fault, this assembly replaces it.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
