The K&N 33-2951 is a panel-style, drop-in replacement for the factory engine air filter on the 2.5-liter four-cylinder diesel Mitsubishi Triton, which the manufacturer lists for 2008 through 2015. Its layered, oiled cotton gauze element is built to raise airflow while still capturing contaminants, so it installs as a direct swap for the stock element rather than as a modification. Confirm the outside dimensions against your factory filter before ordering.
Compared with a disposable paper element, this cotton-gauze filter can be cleaned, re-oiled and reused, and the manufacturer backs it with a No-Hassle Lifetime Limited warranty, so the cost is spread over the life of the truck. Owners on user forums have reported fine dust getting past a dirty Triton air filter, which makes a high-filtration replacement a practical safeguard for the engine. The manufacturer says the filter is designed to increase horsepower and acceleration, but no dyno figure was confirmed, so treat those gains as qualitative.
The manufacturer lists this filter for the Mitsubishi Triton with the L4-2.5L diesel engine from 2008 through 2015. Confirm your truck has the 2.5-liter diesel before ordering.
Yes. The manufacturer describes it as washable and reusable, and lists a re-oiling amount of 1.87 oz (55 ml). Follow the manufacturer's cleaning and oiling directions for the interval and method.
The manufacturer provides a No-Hassle Lifetime Limited warranty on this filter. Check the manufacturer's warranty terms for coverage details.
The manufacturer rates this as an easy, drop-in install that typically needs only a screwdriver and takes about 5 to 10 minutes. Remove the airbox lid, lift out the factory element, and note how it sits in the housing. Wipe out any debris from the housing, drop the K&N element in, and make sure the lid seals and clips engage fully. A loose lid lets unfiltered air bypass the element, so recheck the seal before you start the engine.
