K&N 33-5055 High-Flow Air Filter for 2016-2020 Cadillac CT6 3.6L V6 F/I

Vehicle Fitment

• 2016-2020 Cadillac CT6 (3.6L V6, Fuel Injected)

Fitment Notes

• CT6 was offered with multiple engines (2.0L L4, 3.0L V6, 3.6L V6) using different air filters - this part is specific to the 3.6L V6. K&N's product-page title shows a shorthand "2016-2018" range, but K&N's own vehicle-specific fitment listing and an independent retailer both confirm the fuller 2016-2020 range, covering the CT6's full North American production run.

Features

• Engineered to increase horsepower and acceleration versus a stock paper filter
• Rugged construction using durable, premium materials for lifetime use
• Four layers of premium cotton gauze media for high airflow and strong contaminant capture
• Only needs cleaning approximately every 75,000 miles / 5 years under normal highway driving
• Reusable K&N filter saves money versus repeatedly buying disposable OE filters
• Backed by K&N's No-Hassle Lifetime Limited Warranty
• Easy installation - pre-oiled and ready to drop into the factory air box
• Reduces landfill waste generated by disposable paper air filters

Specifications

• Shape: Triangle
• Media Material: Cotton Gauze
• Washable: Yes
• Outside Length: 14.188 in (360 mm)
• Outside Width: 7 in (178 mm)
• Height: 1.063 in (27 mm)
• Filtration Efficiency: Up to 99%
• Warranty: No-Hassle Lifetime Limited

Included Components

• 1x K&N 33-5055 Triangle Air Filter

Product Description

The K&N 33-5055 is a direct-fit replacement air filter engineered for the 2016-2020 Cadillac CT6 with the 3.6L V6 engine. Its distinctive triangular shape matches the factory air box, and its layered cotton gauze media is designed to deliver higher airflow than the factory paper filter, helping support engine performance while continuing to trap the dirt and debris needed to protect the engine over the long term.

Rather than replacing a disposable paper filter every 12,000-15,000 miles, this filter can be cleaned and reoiled, typically going up to 75,000 miles between services under normal highway driving. It installs directly into the factory air box using the stock mounting points, so no cutting, drilling, or intake modifications are required.

This filter is a practical, reusable upgrade for 3.6L V6 CT6 owners looking to reduce long-term filter costs while keeping the factory intake setup. It is not intended for the 2.0L L4 or 3.0L V6 CT6 variants, which use different, differently shaped air filters.