Description
Cummins ISX / X15 · T6 Conversion
ISX T6 Manifold Conversion Kit
Convert your Cummins ISX from the factory Holset VGT turbo to a proven non-VGT T6 setup. This complete kit includes the manifold, elbow, all gaskets, mounting hardware, and oil feed and drain lines — everything needed to install a T6 turbo in one box.
- Eliminates VGT failures — no more sticking vanes, actuator or soot issues
- Dual-volute pulse flow for quicker spool and lower drive pressure
- Complete bolt-on kit — oil feed and drain lines included
What's Included
| Component | Qty |
|---|---|
| Manifold & Outlet | |
| Exhaust Manifold T6-flanged, ISX bolt pattern | 1 |
| Cast Elbow Turbo outlet transition | 1 |
| Elbow V-Band Clamp | 1 |
| Gaskets & Seals | |
| Exhaust Manifold Gasket | 1 |
| Single-Hole Manifold Gaskets | 4 |
| Turbo Mounting Gasket T6 flange | 1 |
| O-Ring Oil feed seal | 1 |
| Mounting Hardware | |
| Manifold Bolts Primary flange | 10 |
| Manifold Bolts Secondary / end-port | 2 |
| Manifold Spacers Primary | 10 |
| Manifold Spacers Secondary | 2 |
| Turbo Mounting Studs | 4 |
| Turbo Flange Nuts | 4 |
| Oil Lines & Fittings | |
| Braided Oil Feed Line | 1 |
| Oil Feed Line Fitting | 1 |
| Sealing Washer | 1 |
| Oil Drain Line | 1 |
| Oil Drain Gasket | 1 |
| Drain Line Bolts | 2 |
Complete 49-piece kit — 19 line items across 4 assemblies.
Specifications
| Turbo Flange | T6 (non-VGT) |
| Kit Type | Complete conversion |
| Oil Lines | Feed + drain included |
| Casting | High-silicon ductile iron* |
| Warranty | 12 month* |
Fitment
Engines:
Cummins ISXISX15 / X15CM570CM870CM871CM2250CM2350
Turbos:
BorgWarner S400S410 / S475S480Factory T6 HolsetAny T6-flange turbo
All Cummins ISX and X15 cylinder heads share the same exhaust manifold mounting pattern. Confirm your engine model and target turbo before ordering.