PLEASE BE SURE TO PAY ATTENTION TO YOUR HYDRAULIC CONNECTOR STYLE BEFORE ORDERING!! Go look at you tractor and verify your hydraulic connection is the right style before you order..don't ASSUME anything. Even the same model number can have different connector styles, depending on when it was made. This JailBreakYourTractor Pressure Adjustment Kit for Kubota B Series, BX 1880, 23S, 2380 & 2680 and more.. it includes a Pressure Gauge with FLAT FACED COUPLER.... Go look at the hydraulic connection to your front end loader (FEL) and disconnect one of the lines ...the male end (on your machine) should have be flat on the top..if it has a "nipple" the top then you need our poppet kit... Most 2017 and newer BX tractors have "flat faced connections", but double check to be sure. Nearly all B series use the "Poppet/nipple connectors. These kits do NOT fit the older 23D BX22 2200 IF YOU HAVE the larger Kubota L SERIES TRACTOR PLEASE ORDER OUR L-SERIES/MX KIT. THESE SHIMS WORK IN KUBOTA 50,60,70, 80, 1870, 2370, 25, 1880, 2380, 23s, 2670, 2680 and others, see full list in pictures... Does your tractor lack power? Does your Backhoe bog down? Does the scoop strain to lift a bucket of rocks? These adjustment shims will help bump up the pressure and bring back the muscle to your machine. This listing includes a 3000 P.S.I oil filled pressure gauge. It is VERY important that you do not exceed your machines max PSI to avoid damaging your machine. We typically see about a 25% per increase over factory when these shims are applied correctly. You may need all 3 shims, or just one or two..it all depends on where your tractor is to begin with. Many new tractors are not adjusted properly by the dealer before delivery and can be below spec from day one. Also, the coil springs within hydraulic pumps naturally lose strength over time and this kit will allow adjustment to compensate for that. The sizes included in the kit are 0.1 , 0.2 and 0.4 ...Unlike some other pressure adjustment kits, we only use Genuine Kubota shims to insure 100% compatibility and performance. We recommend this modification be done by mechanically inclined persons and assume no liability whatsoever for the use of these shims. Detailed Instructions are included...the whole process takes just a few minutes and is very simple to understand if you choose to do it yourself! Our gauges and fittings are made with high quality stainless steel fittings and a teflon sealant and are designed to last a lifetime, so you can check your pressure each season to make sure your pump is adjusted to its full potential! PLEASE BE SURE TO PAY ATTENTION TO YOUR HYDRAULIC CONNECTOR STYLE BEFORE ORDERING!!