Quick-Draw Upgrade (Custom Port + Oil Sample Valve)

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Add an oil sample valve to the cap of your filter housing! Quick-Draw Upgrade & Oil Sample Valve ⚠️ IMPORTANT: The Quick-Draw Upgrade is a bypass oil filter housing upgrade, it can only be purchased when a Bypass Oil Filter Kit is in your cart. It is NOT a standalone accessory. Get reliable, hassle-free oil sampling with the Insane Diesel Oil Port and Oil Sample Valve—designed for precision, cleanliness, and convenience. Taking oil samples for analysis can be messy, inconsistent, and prone to contamination with conventional methods. Our solution eliminates those headaches so you get accurate, lab-quality samples without spills, mess, or the risk of external debris entering your system. What's Included With This Upgrade: • Custom-Modified Filter Housing Port – We precision-drill and thread a 1/4" NPT port directly into your bypass oil filter housing lid. • Oil Sample Valve – *Permanent thread-lock (or similar sealant) and assembly required. This system provides a dedicated sampling port right at your filter housing, making oil analysis quick, repeatable, and mess-free—every time. ⚠️ IMPORTANT: The Quick-Draw Upgrade is a bypass oil filter housing upgrade, it can only be purchased when a Bypass Oil Filter Kit is in your cart. It is NOT a standalone accessory. Show more