The FASS T C12 165G is a massive upgrade to your 2015-2016 Duramax engine. The Duramax engine does not come with a lift pump from the factory, instead, your CP4 injection pump is required to pull fuel under vacuum, this puts unnecessary wear on your pump. The FASS pump is designed to circumvent this issue and fuel your Duramax properly and efficiently.
FASS Silencing Technology (FST) was developed by the engineering team at FASS Fuel Systems to help reduce the noise created by aftermarket fuel and air separation diesel lift pumps. By using radius cuts, tighter tolerances on all gears and a high quality military Spec’d Coating over the aluminum base, FASS Fuel Systems was able to develop the quietest fuel air separation system on the market.
On Bracket Mounts is the latest update we have made to our Titanium Series lift pumps. Old mounting styles required drilling or welding when mounting your new pump. This has now been simplified with our new bolt-on brackets that utilize your factory bed bolt, the bolt that secures your truck bed to your frame. Mounting your Titanium Series lift pump takes only minutes and all brackets are made from machined steel for superior support and strength.