KSJED Turbocharger Oil Drain Adapter 10AN — T3/T4 Flange, Anodized Aluminium, Includes O‑Ring & Bolts

KSJED Turbine Oil Drain Joint 10AN is an aluminum alloy flange adapter that converts oil-cooled turbocharger outlets to a 10AN drain connection, supplied with two M8 bolts and an O-ring for a leak-resistant fit.

This compact turbine oil drain joint is designed to adapt common T3/T4-style turbocharger housings to a 10AN oil return line. Machined from anodized aluminum and supplied with a matching O-ring and mounting bolts, it provides a durable, corrosion-resistant interface for oil-cooled turbos including many hybrid and GT-series models. The adapter's 51 mm (2 inch) hole spacing fits the majority of aftermarket flanges, but it is not compatible with turbochargers having a 60.98 mm bolt-to-bolt distance.

Which turbochargers will this flange adapter work with?

The KSJED adapter is made for oil-cooled turbine housings commonly found on many aftermarket and hybrid turbos. It fits classic T3 and T4 housings, several T0x variants, and a wide range of GT-series chargers. Always check bolt spacing before purchase to confirm compatibility.

• Compatible: T3, T4, T04B, T04E, Hybrid T3/T4, GT30, GT32, GT35
• Also suits: T60, T61, T66, T60-1, T70, SUPER 70 style outlets
• Bolt centre distance: 2 inch (51 mm)
• Not compatible with 60.98 mm bolt-to-bolt turbo flanges

How does installation look and what hardware is included?

Installation is straightforward and requires only the supplied bolts and O-ring to secure the adapter to the turbo housing. The adapter mounts directly to the turbo flange and provides a sealed boss for a 10AN return fitting; basic hand tools are sufficient for most installs. Follow torque specs from the turbo manufacturer when tightening.

• Included: 1 flange adapter, 2 x M8*1.25mm bolts, 1 x O-ring
• Mounting: secures to turbo with the two supplied bolts
• Tools: standard socket or wrench set; torque per turbo spec
• Seal: pre-fitted O-ring prevents oil seepage at the flange

What are the material and durability features?

The adapter is CNC-machined from aluminum alloy and receives an anodized finish for added corrosion resistance and wear protection. The metal body keeps weight low while resisting heat exposure common near the turbocharger. The included O-ring helps maintain a reliable oil seal under normal operating conditions.

• Material: lightweight aluminum alloy for strength and heat resistance
• Finish: anodized surface to reduce corrosion and galling
• Seal system: resilient O-ring included to limit oil leaks
• Fastening: stainless-look bolts sized M8*1.25mm for secure fit

Will this change my oil line fittings or routing?

The KSJED drain joint converts the turbo's drain outlet to a 10AN port, which can simplify plumbing if you use AN-style hoses and fittings. It does not alter internal oil flow; it only provides a standard external connection point for 10AN return lines. Use appropriate AN fittings and routing to ensure gravity-fed return to the oil pan.

• Output: standard 10AN drain connection for AN hoses
• No internal modification of the turbo required
• Requires compatible AN hose and fittings for routing
• Design supports gravity-fed oil return plumbing best practices

Who is this for: The KSJED Turbine Oil Drain Joint is intended for tuners, fabricators, and DIY engine builders who run oil-cooled aftermarket turbos and want a reliable 10AN drain port. It's a practical choice when adapting hybrid or GT-series turbochargers to AN-style oil plumbing, provided the flange bolt spacing matches 51 mm. Select this adapter when you need a lightweight, corrosion-resistant flange with an included seal and mounting hardware for a neat, serviceable oil return setup.