The K&N SU-6006 is a washable, reusable replacement for the stock Suzuki airbox element. It uses multiple layers of woven cotton gauze over pleated media, with an application-specific base seal. Its main case against a disposable paper filter is durability: the manufacturer says it can last up to 10 years or 1,000,000 miles without replacement, and it carries a No-Hassle Lifetime Limited Warranty. The manufacturer also designed it to provide increased horsepower and torque, which is the performance case for a GSR600 or GSR750 rider chasing sharper throttle response on a budget. Search terms: K&N GSR600 reusable air filter, GSR750 cotton gauze airbox filter, Suzuki 13780-44G00 replacement.
Fitment is the first thing to verify. The manufacturer's SU-6006 listing shows the GSR600 for 2006-2010 and the GSXS750 for 2015-2019, while other sources give different GSR750 year ranges, so confirm against your VIN and the Suzuki OEM numbers before ordering. The filter cross-references Suzuki 1378044G00 and 1378044G01. For installation, the filter arrives pre-oiled, and cleaning the air filter housing and sealing surface before fitting is what gets a proper seal. Seating matters because a loose element can let unfiltered air past it.
The manufacturer's listing names the GSR600 for 2006-2010 and the GSXS750 for 2015-2019. Other sources give different GSR750 year ranges, so check your VIN or the Suzuki OEM numbers 1378044G00 or 1378044G01 before ordering.
Yes, the manufacturer describes it as pre-oiled and ready to install. Its listed re-oiling amount is 0.7 oz (21 ml) after cleaning.
The manufacturer states it can last up to 10 years or 1,000,000 miles without requiring replacement, backed by its lifetime limited warranty. Cleaning intervals depend on riding conditions.
The manufacturer's installation guidance for its washable filters describes a direct swap: the filter is a direct replacement for the stock air filter, and it does not require a specific installation procedure. Remove the airbox lid, pull the stock element, and clean the housing and sealing surface. On some K&N models the filter is installed into the lid first, so hold it in place while refitting the lid. Check that the filter is fully seated in the groove before fastening the lid, since forcing a misaligned lid can crack the airbox. Confirm the specific tools and steps against the SU-6006 instruction sheet, which I could not locate during research.
