Product Description
MAHLE 4068D (.010" / 0.25 mm oversize) composite head gasket restores correct stack height and clamp load after head/block machining on 1989–1998 5.9L Cummins 12-valve engines. Built to OE spec with VR2000-class materials, it delivers dependable sealing under towing, work-truck, and performance use.
Fitment
- 1989–1993 Dodge D/W 250/350 & W250/W350 with 5.9L Cummins 12V
- 1994–1998 Dodge Ram 2500/3500 with 5.9L Cummins 12V
- Use .010" (0.25 mm) oversize after surface machining to maintain piston-to-head clearance and sealing.
Cross-Reference / OE Numbers
- Cummins: 3283000, 3283337, 3918306, 3921396
Related MAHLE Items (Internal Links)
- MAHLE 4068C Cylinder Head Gasket – Standard .061" (1989–1998 5.9L 12V)
- MAHLE 4068E Cylinder Head Gasket – .020" / 0.50 mm Over (1989–1998 5.9L 12V)
- MAHLE HS4068 Upper Head Gasket Set – Standard
- MAHLE HS4068A Upper Head Gasket Set – .010" Over
- MAHLE HS4068B Upper Head Gasket Set – .020" Over
Why MAHLE
- OE design & materials (VR2000-class composite) for consistent sealing
- Oversize thickness recovers proper clamp load after machining
- Direct-fit for 12V 5.9L Cummins—no guesswork
Install Notes
- Verify head/block flatness & surface finish; follow Cummins torque sequence
- Use new head bolts or upgrade to studs; no additional sealant unless specified by service manual
FAQ
When should I choose the .010" (0.25 mm) oversize 4068D?
Choose 4068D after the cylinder head or block has been machined to recover the correct stack height and sealing pressure.
Is 4068D MLS or composite?
4068D is a composite (VR2000-class) gasket engineered to OE standards for 12-valve 5.9L applications.
Does this include head bolts or studs?
No. Bolts/studs are sold separately. Replace bolts if out of spec, or upgrade to studs for high cylinder pressure builds.
Specifications for Mahle 4068D
| Attribute | Value |
|---|---|
| Brand | MAHLE Original |
| Part Number | 4068D |
| Material / Thickness | Composite (VR2000), .010" / 0.25 mm oversize |
| Bore Diameter (approx.) | 4.18" (106.05 mm) |
| UPC (GTIN-12) | 027067483034 |
| GTIN (14-digit) | 00027067483034 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Typical package: 31.00" × 8.00" × 0.13". |
| Country of Origin | Not specified |
| Prop 65 | No specific Prop 65 listing found for this item; for general information see www.P65Warnings.ca.gov. |
