If you’ve ever unboxed one of our HPT Turbochargers, you’ve probably noticed the big yellow tag hanging off the oil feed fitting that reads: “Warranty Void if Fitting is Removed.”
That tag isn’t just there for looks—it’s there to protect your investment. Let’s break down why leaving that fitting in place is so critical.
What the Oil Feed Fitting Does
The oil feed fitting on your turbo is more than just a connection point. It:
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Locates the bearing – keeping it properly seated in the center housing.
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Feeds oil directly to the bearing – ensuring constant lubrication under extreme heat and load.
The Risk of Removal
Some people are tempted to remove or swap this fitting. Here’s why that’s a problem:
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Misalignment – Removing the fitting can allow the bearing to roll over or shift out of place, which can cause damage.
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Reinstallation errors – Even a small mistake during reassembly can restrict oil flow or damage the bearing surface.
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Oil starvation – An incorrectly installed fitting can choke off the oil supply, leading to premature failure—or worse, total turbo destruction.
In short: if the fitting is removed, the turbo may not get the oil it needs to survive. That’s why we void the warranty when it’s tampered with.
Extra Protection: Oil Feed Filters
Want to go a step further in protecting your turbo? Adding an inline oil filter is one of the smartest upgrades you can make. These filters catch contaminants before they ever reach your turbo’s bearing, preventing scoring, blockages, and lubrication starvation.
We recommend these options:
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Direct Mount Oil Filter Fits HPT F2 & F3 Turbochargers
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Turbosmart Billet Turbo Oil Feed Filter (Use 4an to 4an)
The Bottom Line
Your HPT turbo depends on proper oiling to live a long, healthy life. That little yellow tag is a reminder: don’t mess with the oil feed fitting, and always keep your lubrication system clean. With the right setup and a simple oil feed filter, you’ll keep your turbo spooling hard and worry-free.