See what it fits: 1973-74 GMC C25/C2500 Pickup 5.7L Fuel Del. Sub Type:4BBL1974-74 Chevrolet C10 Pickup 5.7L Fuel Del. Sub Type:4BBL1974-74 GMC C15/C1500 Suburban 5.7L Fuel Del. Sub Type:4BBL1974-74 GMC C25/C2500 Suburban 5.7L Fuel Del. Sub Type:4BBL1974-76 Chevrolet K10 Suburban 5.7L Fuel Del. Sub Type:4BBL1974-76 Chevrolet K20 Suburban 5.7L Fuel Del. Sub Type:4BBL1975-76 Chevrolet C10 5.7L Fuel Del. Sub Type:4BBL1975-76 Chevrolet C10 Suburban 5.7L Fuel Del. Sub Type:4BBL1975-76 Chevrolet C20 5.7L Fuel Del. Sub Type:4BBL1975-76 Chevrolet C20 Suburban 5.7L Fuel Del. Sub Type:4BBL1975-76 GMC C15 5.7L Fuel Del. Sub Type:4BBL1975-76 GMC C15 Suburban 5.7L Fuel Del. Sub Type:4BBL1975-76 GMC C25 5.7L Fuel Del. Sub Type:4BBL1975-76 GMC C25 Suburban 5.7L Fuel Del. Sub Type:4BBL1976 Chevrolet C30 5.7L Fuel Del. Sub Type:4BBL1976 Chevrolet K10 5.7L Fuel Del. Sub Type:4BBL1976 Chevrolet K20 5.7L Fuel Del. Sub Type:4BBL1976 Chevrolet K5 Blazer 5.7L Fuel Del. Sub Type:4BBL1978 Chevrolet C30 5.7L Fuel:GAS1978-80 Chevrolet C10 5.7L Fuel:GAS1978-80 Chevrolet C10 Suburban 5.7L Fuel:GAS1979-81 GMC C1500 5.7L Fuel:GAS1981 Chevrolet C10 5.0L Fuel Del. Sub Type:4BBL1981 GMC C1500 5.0L Fuel Del. Sub Type:4BBL Replaces: ECOGARD# XA3384, FRAM# CA3549, DA3549, DA4450, PRA3549, PUROLATOR# A53384, WIX# 46220 Efficiency describes the volume of dirt and pollutants that an air filter prevents from entering an engine. High-efficiency Premium Guard engine air filters trap up to 99 percent* of dirt/pollutants over the life of a filter. *Tested per ISO-5011 Restriction of airflow measures the air flow that passes through the car filter into the engine. Our automotive air filters are designed to maximize the flow of clean air into the vehicle's engine, enhancing its power and performance. Dust-holding capacity refers to the quantity (weight) of airborne pollutants captured throughout the life of the auto air filter. All Premium Guard air filters feature high dust-holding capacity for exceptional longevity and performance. The Many Advantages of Premium Guard Air Filters Enhanced Fuel Economy With our high-performance air filters you'll experience optimal fuel burning and improved engine combustion, boosting your vehicle's overall fuel economy. High Performance Premium Guard automotive air filters optimize the flow of clean air into the engine for enhanced engine performance and power. Easy Installation Manufactured to meet or exceed OEM (Original Equipment Manufacturer) requirements, we offer the same fitment as the original filter. OEM fitment ensures easy auto air filter installation every time. Impressive Value Combining affordable, direct-to-consumer prices and the highest quality standards, these engine air filters deliver great value along with superior protection and performance. Common Indicators It’s Time to Replace Your Engine Air Filter Engine Light Comes On: Many cars are equipped with an airflow sensor that sets off the check engine light.Visual Inspection: Premium Guard automotive air filters are white so you can see if they're dirty. Check the outside and inner layers of the filter paper for dust and debris.Reduced Fuel Economy: When engines get less oxygen, they consume more fuel. If you notice fuel economy going down, you may need to replace the air filter. Engine Misfiring: Restricted air supply results in unburnt fuel exiting the engine as soot residue. Soot accumulates on the spark plugs, which can cause the engine to misfire.Reduced Horsepower: Replacing the air filter can improve acceleration or horsepower. If your car doesn’t respond well or jerks when you step on the accelerator, the engine may not be receiving the air it needs to perform. Black Sooty Smoke or Flames: Poor air supply can result in fuel not burning completely during the combustion cycle. Unburnt fuel exits the car through the exhaust pipe, possibly resulting in smoke or flames. *Certain conditions can impact the life of the air filter. Possible causes of more frequent replacement include: Driving conditionsDusty roadsHumid climates Congested roads and heavy-traffic areas