1973-77 Pontiac Grand Prix 4-BBL TH350 Transmission Vacuum Modulator Line
Pre-bent TH350 vacuum modulator line for 1973–77 Grand Prix 4-barrel applications.
Maintain the original transmission vacuum system of your 1973–77 Pontiac Grand Prix with this reproduction vacuum modulator line, designed for models equipped with a four-barrel carburetor and TH350 automatic transmission. Pre-bent to factory specifications, this replacement line follows the original routing between the engine intake manifold and transmission vacuum modulator, providing the vacuum signal needed to regulate transmission shift characteristics according to engine load. Available in original-material steel for a factory-style appearance or stainless steel for enhanced corrosion resistance, this line is an excellent choice for replacing damaged, deteriorated or missing original tubing.
Each line features accurately formed bends and correctly bubbled tube ends that help retain the rubber connecting hoses at the intake manifold and transmission modulator. Its preformed construction eliminates the need to fabricate bends from bulk tubing while helping preserve the original underhood and transmission plumbing arrangement. Whether completing a comprehensive restoration or servicing the transmission vacuum system, this reproduction line provides a convenient solution for maintaining the proper vacuum connection on your TH350-equipped Grand Prix.
Features
• Fits 1973–77 Pontiac Grand Prix models
• Designed for four-barrel carburetor applications
• Compatible with TH350 automatic transmissions
• Reproduction transmission vacuum modulator line
• Pre-bent to original factory specifications
• Available in original-material steel or stainless steel
• Stainless steel option provides enhanced corrosion resistance
• Correctly bubbled tube ends help retain rubber connecting hoses
• Connects intake manifold vacuum to the transmission modulator
• Supplies engine vacuum for transmission shift control
• Eliminates the need for custom bending of bulk tubing
• Helps maintain the original transmission vacuum plumbing layout
• Suitable for restoration or replacement of deteriorated original lines
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), 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.
