Product Description
MAHLE SH-1981 camshaft bushing delivers OE-grade durability and precise oil clearance for late 5.9L ISB “STORM” block and many 6.7L Cummins builds. Engineered by MAHLE/Clevite for reliable cam support and stable oil film, this front-position bushing helps maintain accurate cam alignment under high load to protect lifters, journals, and timing components in daily drivers, tow rigs, and work trucks.
Fitment
- Primary application (front position, STORM block): 1999–2007 Ram 2500/3500 5.9L Cummins (Position #1 ~2.340" OD).
- Also referenced on: 1998.5–2018 Cummins 5.9L & 6.7L front cam location when OE/OD matches. Always verify by OE part number or by measuring bore OD before ordering.
Cross-Reference / Interchange
- Cummins OE: 3940059 (front cam bushing), 4983253 (alternate on some 6.7L)
- Mopar/Chrysler: 05003617AA, 5003617AA
- Sealed Power: 4207DR
- FP Diesel: FP3940059
Related MAHLE Items (Internal Links)
- MAHLE SH-1404 Camshaft Bushing – 1989–1996 5.9L Cummins 12V
- MAHLE MS19225 Exhaust Manifold Gasket Set – 1998.5–2018 5.9L/6.7L
- MAHLE GS33493 Cylinder Head Bolt Set – 1998.5–2018 5.9L/6.7L
- MAHLE 48384 Rear Main Seal – 1989–2018 5.9L/6.7L
Why MAHLE / Clevite
- OE-grade bearing material for excellent embedability and scuff resistance
- Pre-finished to factory oil-clearance targets for clean installs
- Trusted in stock rebuilds and heavy-use applications
Installation Notes
- Press-fit squarely; align oil feed hole(s) to block passages
- Lightly lubricate and verify journal clearance per Cummins spec
- Check cam end-play and rotate by hand to ensure no binding
FAQ
How many SH-1981 bushings does my engine need?
Typically one for the front (Position #1) on STORM block 5.9L and many 6.7L builds. Verify your application.
Will SH-1981 fit every 6.7L Cummins?
Many do, but some 6.7L engines use OE 4983253. Match by OE number or confirm ~2.340" OD before purchase.
Is machining required after install?
SH-1981 is pre-finished. If the housing bore is correct and alignment is true, additional machining is typically not needed.
What’s the UPC/GTIN for this part?
UPC/GTIN-12: 027067468680.
Specifications for Mahle SH-1981
| Attribute | Value |
|---|---|
| Brand | MAHLE / Clevite |
| Part Number | SH-1981 |
| UPC (GTIN-12) | 027067468680 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Typical package approx. 3.19" W × 2.25" L × 1.25" H. |
| Country of Origin | USA (per supplier listings) |
| Prop 65 | This product can expose you to chemicals including lead and lead compounds, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
