GM Glow Plug / Intake Air Heater Relay, LB7 Federal Emissions | 2001 - 2004

This is the genuine GM glow plug and intake air heater relay, GM 97371492, for 2001-2004 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L Duramax LB7 and federal emissions (RPO NF2). GM lists it as the intake air heater relay assembly, and it replaces the earlier GM 97358848. Replace a worn relay to correct glow plug or intake air heater operation.

Features

• Genuine GM part, GM 97371492
• Replaces GM 97358848
• For federal emissions (NF2) LB7 engines

What's Included

• (1) GM glow plug / intake air heater relay

When to Replace

The glow plugs and intake air heater help the engine start in cold weather. A worn relay can stop them from working correctly, which can make cold starts harder.

Before You Order

• Federal emissions (NF2) LB7 only.
• Glow plugs not working? Check the 175 amp glow plug and intake air heater fuse, the glow plug controller and the glow plug rails as well.

Related Parts

• Glow Plug Controller, LB7 Federal Emissions 2001-2004
• Glow Plug Intake Air Mega Fuse, 175 Amp, 2001-2004
• GM Glow Plug Rail (Bus Bar), LB7 2001-2004
• ACDelco 62G Glow Plug, Duramax 2001-2004

Frequently Asked Questions

Does this replace GM 97358848?
Yes. GM 97371492 replaces 97358848.

For warranty information, see our Warranty Policy.