GM 97371074 Coolant Bypass Tube 2001-2005 GM 6.6L Duramax LB7/LLY (2500HD/3500HD Pickup)

The GM 97371074 Coolant Bypass Tube is an essential component specifically engineered for 2001-2005 GM 6.6L Duramax LB7/LLY (2500HD/3500HD Pickup) models. Designed by GM engineers, this genuine part is produced under the highest standards, ensuring quality and durability you can depend on. Recognized as a true Original Equipment (OE) part, it integrates seamlessly with your vehicle's safety systems, offering a level of reliability that aftermarket alternatives may not provide.

Manufactured from robust steel, the bypass tube features a molded assembly shape and has been rigorously tested to meet GM’s exacting specifications. With a length of 10.236 inches and multiple inlet and outlet diameters designed for optimal fluid flow, it caters to a range of coolant management needs. The inclusion of four distinct end types—straight, bolt-on, and barbed—ensures versatility during installation and maintenance.

As part of the commitment to quality, GM offers a 24-month unlimited miles limited warranty, which includes labor if installed by a GM dealer, reflecting their confidence in the product's performance. Moreover, this component undergoes regular updates to incorporate the latest materials and technologies, ensuring your vehicle gets the cutting-edge components it deserves.

Please be aware of the safety warning: This product may expose you to chemicals known to the State of California to cause cancer and reproductive harm, as per Proposition 65 guidelines.

With the GM 97371074 Coolant Bypass Tube, you can trust you’re maintaining the integrity and performance of your GM vehicle. Choosing GM Genuine Parts means choosing a legacy of quality and engineering excellence.

• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
• GM regularly updates production and service part designs to integrate new materials and technologies

• GM Genuine Parts Thermostat Bypass Pipes are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

• WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

• Warranty

  24 Months/Unlimited Miles Limited Warranty (plus Labor if installed by a GM dealer)

• Product Specifications

  Classification	OE
  Length	10.236 in
  End 1 Type	Straight
  Color	Black
  Inlet Inside Diameter	0.906 in
  Inlet Inside Diameter	23 mm
  Outlet Inside Diameter	0.811 in
  Branch Quantity	3
  Outlet Inside Diameter	20.6 mm
  Length	260 mm
  End 2 Type	Bolt On
  Shape	Molded Assembly
  Mounting Hardware Included	No
  Gasket Or Seal Included	No
  Material	Steel
  End 3 Type	Barbed