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Home >> GMC >> 1998 >> C3500 HD 7.4 J, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications - 7.4L >> Quick-Service >> Service Intervals & Specifications
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Service Intervals & Specifications

REPLACEMENT INTERVALS

Component Interval (Miles)
Accessory Drive Belt (1) 60,000
Air Cleaner 30,000
Engine Coolant 150,000
Fuel Filter 30,000
Oil & Filter 3000
Spark Plugs 100,000
(1) Inspect and replace as necessary.
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