Product Description
CUMMINS 3918954 OEM ENGINE OIL FILTER HOUSING (OIL FILTER HEAD) – RAM 5.9L 12-VALVE (1994–1998)
The genuine CUMMINS 3918954 OEM engine oil filter housing is the correct factory replacement for 1994–1998 Ram 2500 & 3500 trucks equipped with the 5.9L 12-valve Cummins. This aluminum filter head mounts to the driver-side engine block and provides critical sealing, oil routing, filtration control, and pressure sensor porting. When your original housing is cracked, leaking, or stripped, replacing it with an OEM Cummins unit restores the precise flow and pressure stability your 12-valve engine depends on.
This assembly is engineered to withstand high oil pressure, heat cycling, vibration, and long-term corrosion. Many failures occur from overtightened oil filters or stuck sensors, making OEM replacement the safest option. The 3918954 housing also provides proper sealing for the oil cooler interface and supports the correct filter bypass behavior used on the B-series 5.9 platform.
Whether you are repairing stripped threads, oil leaks, or restoring a full 6B lubrication system, this OEM Cummins filter head ensures a long-life, leak-free seal with consistent oil delivery.
Key Features
- Genuine Cummins OEM oil filter housing for 5.9L 12-valve.
- Restores proper oil pressure and filtration flow after cracking or thread damage.
- Direct bolt-on housing for 1994–1998 Ram 5.9L Cummins engines.
- Precision-machined aluminum for long service life under high temperature and pressure.
- Includes ports for factory oil pressure sensors and cooler mounting interface.
Fitment Details
- Engine: Cummins 5.9L B-Series 12-Valve (P7100 pump)
- Years: 1994–1998 (common automotive usage)
- Vehicle: Dodge Ram 2500 / 3500
- Notes: Verify by VIN/engine serial number before ordering.
Cross-Reference & Related Cummins Components
For a complete oil filtration and cooling restoration, pair 3918954 with these genuine Cummins items:
- CUMMINS 3880154 OIL FILTER HEAD SEAL
- CUMMINS 3924441 OIL COOLER CORE – 5.9L
- CUMMINS 3932474 OIL COOLER COVER PLATE
- VIEW ALL GENUINE CUMMINS OEM PARTS
Common Cross-Reference: 3918954, 3929688 (casting interchange), 3905366 (related hardware)
Installation Notes
- Always inspect the oil cooler sealing surface before installing the new housing.
- Replace the CUMMINS 3880154 gasket/seal for a leak-free installation.
- Ensure all sensors and plugs are torqued to specification to prevent cracking.
- Prime the lubrication system before startup to avoid dry-fire conditions.
Specifications for cummins 3918954
| Attribute | Value |
|---|---|
| Brand | Cummins (Genuine OEM) |
| Part Number | 3918954 |
| Function | Engine oil filter housing / filter head assembly |
| Engine Compatibility | 5.9L Cummins 12-Valve (1994–1998 common application) |
| Vehicle Compatibility | 1994–1998 Dodge Ram 2500 & 3500 with 5.9L Cummins |
| UPC | 760040628185 |
| GTIN | 00760040628185 |
| Shipping Weight | Approx. 3.5–4.5 lbs |
| Shipping Method | Standard ground; expedited shipping available |
| Cross Reference | 3929688 (casting), 3905366 (related hardware) |
| E-Codes | Used on B-series non-certified emission engines |
| Prop 65 Warning | WARNING: This product may expose you to chemicals found in engine oil and fuel residues. See www.P65Warnings.ca.gov. |
Frequently Asked Questions
WILL THIS FIT MY 1994–1998 12-VALVE CUMMINS?
Yes. This housing is commonly used on 1994–1998 Ram 2500/3500 trucks with the 5.9L 12-valve. Always confirm with your VIN/ESN for accuracy.
WHAT SEAL DO I NEED WHEN INSTALLING THIS HOUSING?
You will need the CUMMINS 3880154 oil filter head seal for correct installation.
WHAT CAUSES THESE HOUSINGS TO FAIL?
Common failures include overtightened oil filters, cracked sensor ports, and corrosion. OEM replacement ensures reliable sealing and pressure control.
IS THIS A COMPLETE ASSEMBLY?
This listing is for the oil filter housing only. Sensors, seals, and hardware are sold separately.
CAN THIS FIX LOW OIL PRESSURE?
If the cause is a cracked housing or internal bypass fault, yes. However, low oil pressure may also indicate pump wear or bearing clearance issues.
