Are transmission cooler lines on an Isuzu ascender covered on a power-train warranty?

Transmission cooler lines on an Isuzu Ascender are typically not covered under a powertrain warranty. Powertrain warranties generally cover the engine, transmission, and drivetrain components, while transmission cooler lines are considered part of the vehicle's cooling system. It's always best to consult the specific warranty documentation or speak with a dealer for definitive coverage details.