Thumbnail Filmstrip of Engine Valley Boots- Early 99 (1/98-11/98) Images
Dieselsite Valley Boot Kit
The kit includes the two boots that connect the intake manifold to the cylinder heads on the Early 1999 Powerstroke. It includes four worm drive clamps for the boots. The spring bolt clamps are not to be used in this application as they will damage the intakes.
If you are confused about how many boots or what "kits" you need to complete your boots, we'll try to make it easier for you. You have 6 total "Intercooler" or charge air cooler hoses. We break up the Early 99 7.3L systems into 3 kits. If you scroll down to the bottom of the page, you will see the remaining two kits you will need to complete your set.
This boot kit is designed to replace leaking, deteriorated boots on the Early 99 7.3L Ford Powerstroke. Stock boot material is silicon. However, this type of material is NOT oil compatible. This is unacceptable in our application as the Powerstroke incorporates a closed crankcase vent system. This means oil travels thru the intake and comes in constant contact with the boots. This oil contact causes deterioration and leaks due to the incompatibility of the silicon boots and the oil from your crankcase. In fact, if you have seen an oil mist all over the valley of your PSD and wondered where it was coming from, chances are it was caused by leaking, deteriorated stock boots. The stock boots WILL leak air and oil. In many cases, 3-4psi leaks are very common.
As an added bonus, this boot kit will keep those who put out higher than normal boost numbers from "blowing boots". Higher boost in the PSD can stretch the limits of a saturated set of factory boots and could blow your boots right off. In some cases, guys with numbers MUCH lower still running the stock boots saturated with oil, having lost their integrity and gripping ability can have their boots slip off as well. Not quite as dramatic, but still a bummer. Even a stock truck can have problems keeping boots on if they become saturated with oil.
A little specific info on our boots.
Our boots are Flourolastomer lined to handle oil, heat, etc. They have a 5 ply braided center section, and a textured outer rubber cover to grip on to the clamps.
Fluoroelastomers are synthetic, rubber-like materials used in gaskets, O-rings and hoses. Their unique properties make these products ideal for high-performance aerospace and automotive applications or environments that are extremely harsh and challenging.
These are not cheap silicon hoses. These are top quality (best that can be made) tubes that are indivdually molded. These are not cut sections of some hose length. The most important thing you need to know is : Silicone hose is NOT compatible with fuel or oil.
There are other options out there for cheap hoses, like those that sell silicon hoses, but for those that want the absolutely best hoses you can buy, we made the units you see on our web site.