Product Description
Cummins 3916127 — Engine Block Heater Element (5.9L)
MPN: 3916127 | Also Known As: block heater element, coolant immersion heater | Voltage: 120V
Why This Part
- ✓ OE element that installs in the block’s freeze-plug port for rapid warm-ups.
- ✓ Direct-fit for 1989–1998 Ram 5.9L Cummins (see overlap note below).
- ✓ Faster cold starts and reduced engine wear in winter conditions.
- ✓ Built to Cummins standards for durability and consistent heat output.
Quick Specs
| Type | Engine block heater element (coolant immersion) |
|---|---|
| OE Part # | 3916127 |
| Voltage | 120V |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1993 | 5.9L Cummins (12-Valve) | D/W 250 & 350 |
| 1994–1998 | 5.9L Cummins (12-Valve; some 24-Valve ’98.5 overlap) | Ram 2500/3500 |
Compatibility Notes: ’94–’98 trucks can use either 3916127 or 3975628 depending on block/heater style—verify by VIN/ESN or existing element before ordering.
Often Paired With
- Heater Cord (Power Cable): Cummins 3681360
- Coolant top-off after install (verify freeze-point protection)
What’s In The Box
- (1) Genuine Cummins Engine Block Heater Element (3916127)
- Heater cord sold separately (see “Often Paired With”).
Install Tips
- Drain enough coolant to drop below the element port; catch and reuse if clean.
- Clean the bore; lightly lube O-ring if applicable; torque per factory spec.
- Bleed air, verify no leaks, and test operation with a non-contact watt/amp check.
FAQ
WILL THIS FIT MY 1989–1998 5.9L CUMMINS?Yes—3916127 is the OE element for 1989–1998 5.9L applications. ’94–’98 trucks may also use 3975628; verify which element your block uses before ordering.
IS THE HEATER CORD INCLUDED?No—order the power cable separately. Common OE cord: Cummins 3681360.
WHAT VOLTAGE IS THIS ELEMENT?It’s a 120-volt coolant immersion heater designed for North American household power.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3916127 for proper fit and reliable cold-start performance.
WHAT’S THE DIFFERENCE BETWEEN 3916127 AND 3975628?Both are OE elements; certain ’94–’98 trucks can have either style from the factory. Check the element style or confirm by VIN/ESN to avoid returns.
