GM 97376410 Duramax Test Port Low Pressure Steel Line LBZ-LMM

Its not uncommon to have this line crack or fail during test port service or use. This line will replace the small low pressure section adjacent to the alternator on most LBZ and LMM equipped trucks. To confirm fitment please call and we can verify fitment using your vin.

Note: Line Does NOT Include Test Port or O-Ring

• OE Test Port GM# 12637722
• O-Ring GM# 94011618
• Optional Test Port Caps DHD 007-0227 or DHD 007-0243