Product Description
Cummins 3905216 — HX40 Turbo Downpipe V-Band Clamp
MPN: 3905216 | Also Known As: exhaust V-band clamp, turbine outlet clamp | Use Case: Attaches HX40 turbine outlet to downpipe (metal-to-metal seal; no gasket)
Why This Part
- ✓ Genuine Cummins clamp engineered for HX40 turbine outlet connections.
- ✓ Leak-tight V-band interface for secure downpipe retention.
- ✓ Direct fit to HX40-style outlet (popular aftermarket turbo on 5.9L/6.7L builds).
- ✓ Durable band and T-bolt hardware for repeated heat cycles.
Quick Specs
| Type | Turbocharger V-band clamp (turbine outlet → downpipe) |
|---|---|
| OE Part # | 3905216 |
| Interface | HX40 turbine outlet V-band profile |
| Qty Required | 1 per turbo (sold individually) |
| Cross-References | PAI 842022, World American WA133VC5216, REDLINE VB2016 |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| Universal (HX40) | 5.9L / 6.7L Cummins with HX40 turbo upgrade | Ram 2500/3500 (w/ HX40), other custom builds |
Industrial/Off-Highway: Used primarily on EPA13 ISB/QSB 6.7 applications—always confirm by ESN/turbo model.
Often Paired With
- HX40 downpipe V-band flange (mates to this clamp)
- Downpipe section sized for HX40 outlet
- Anti-seize for T-bolt threads; new hardware if corroded
What’s In The Box
- (1) Genuine Cummins V-Band Clamp (3905216)
- Flanges/downpipe sold separately (see “Often Paired With”).
Install Tips
- Clean both V-flanges; seat fully before tightening.
- Snug the nut evenly while tapping the band to settle; do not over-torque.
- Heat-cycle the system, then re-check torque for best seal.
FAQ
WILL THIS FIT MY FACTORY 5.9L/6.7L CUMMINS?This clamp is for HX40-style turbine outlets. It fits your truck only if you run an HX40 (many factory turbos are HX35/HE341/HE351). Verify your turbo model before ordering.
DO I NEED A GASKET WITH THIS CLAMP?No—V-band joints are metal-to-metal. Ensure both mating flanges are clean and properly aligned.
WHAT SIZE IS THE HX40 CLAMP?It’s the HX40 outlet profile (application-specific). Measure your flanges if you’re unsure, as HX-series and HE-series clamps are not interchangeable.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3905216.
WILL THIS WORK ON INDUSTRIAL ISB/QSB 6.7?Yes, this clamp is used primarily on EPA13 ISB/QSB 6.7 applications—confirm by ESN and turbo model.
