Product Description
Stop oil creep past the guides and keep your 24-valve running clean with the MAHLE SS45903 Intake Valve Stem Oil Seal Set for the 1998.5–2002 5.9L Cummins ISB. These OE-style, positive-type metal-shell seals meter oil precisely at the intake valve, helping reduce consumption, haze, and carbon. Includes 12 intake seals—one per intake valve.
Fitment
- 1998.5, 1999, 2000, 2001, 2002 Dodge Ram 2500/3500 — 5.9L Cummins 24-valve (ISB)
Cross-Reference / Mahle Alternatives (links to cppdiesel.com only)
- Exhaust Valve Stem Seal Set (matches this intake set): MAHLE SS45902
- Turbo Mounting Gasket Set (98.5–02 24V): MAHLE GS33583
- Front Timing Cover Gasket Set (98.5–02 24V): MAHLE JV5097
- Complete Engine Gasket Set (Full Rebuild, 98.5–02 24V): MAHLE 95-3623
- Individual Cylinder Head Gasket (Std Thickness, 98.5–02 24V): MAHLE 54174
What’s Included
- (12) Intake valve stem oil seals (intake side only)
FAQ
Does this kit include exhaust seals?
No. SS45903 covers intake seals only. For exhaust, use MAHLE SS45902.
Will it fit my 2001 Ram 2500 24-valve?
Yes—this set fits 1998.5–2002 5.9L Cummins ISB 24V applications.
Why “positive-type” seals?
Positive seals control oil more precisely at the guide, helping reduce oil consumption and deposits.
Any install tips?
Lightly lube seals and stems, use the proper driver, and inspect guides for wear before installation.
Specifications for Mahle SS45903
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | SS45903 |
| UPC | 027067931368 |
| GTIN | 027067931368 |
| Engine Compatibility | 1998.5–2002 5.9L Cummins ISB 24-valve (intake seals) |
| Qty in Set | 12 (intake side) |
| Package Dimensions (W×H×D) | 4.25" × 0.75" × 6.50" |
| Shipping | Calculated at checkout |
| Prop 65 | Not specified by manufacturer. See www.P65Warnings.ca.gov. |
