Product Description
MAHLE GS33493 Cylinder Head Bolt Set restores factory clamping force and long-term head-gasket sealing on 1998.5–2018 Cummins ISB 5.9L/6.7L engines. This OEM-grade, torque-to-yield (single-use) kit includes 26 hex-head bolts to service one cylinder head—ideal for stock and work-truck builds that demand reliable, repeatable torque-angle performance.
Fitment
- 1998.5–2002 Ram 2500/3500 – 5.9L ISB (24-valve)
- 2003–2007 Ram 2500/3500 – 5.9L ISB
- 2007.5–2018 Ram 2500/3500 – 6.7L ISB
- 2008–2018 Ram 4500/5500 – 6.7L ISB (Chassis Cab)
Cross-Reference / Related Mahle Items (Internal Links Only)
- MAHLE 54174 Cylinder Head Gasket – 1998.5–2002 5.9L
- MAHLE 54774 Cylinder Head Gasket – 2007.5–2018 6.7L
- MAHLE MS19225 Exhaust Manifold Gasket Set – 1998.5–2018 5.9L/6.7L
- MAHLE SH-1981 Camshaft Bushing – 1998.5–2018 5.9L/6.7L
- MAHLE 48384 Rear Main Seal – 1989–2018 5.9L/6.7L
Why Choose MAHLE
- Meets or exceeds OE tensile and elongation specs
- Hex-head design—no separate washers required
- Consistent torque-angle characteristics for MLS gasket sealing
Installation Notes
- Bolts are single-use TTY—do not reuse.
- Follow the factory torque-angle sequence and specs for your year/engine.
- Always pair with a new MAHLE head gasket matched to your application.
FAQ
Is GS33493 a torque-to-yield (TTY) bolt set?
Yes—these are single-use TTY bolts. Replace after removal and use the factory torque-angle steps.
How many bolts does the kit include?
Twenty-six (26) bolts, which services one cylinder head.
Do these bolts require separate washers?
No. The design installs without separate washers.
Which MAHLE head gasket should I use?
Match by year/engine—e.g., 54174 for many 1998.5–2002 5.9L and 54774 for many 2007.5–2018 6.7L applications. Always verify by VIN/ESN.
Specifications for Mahle GS33493
| Attribute | Value |
|---|---|
| Brand | MAHLE / Clevite |
| Part Number | GS33493 |
| UPC | 00027067717177 |
| GTIN | 027067717177 |
| Shipping Info | Free Shipping (typical pkg. 6.25" W × 6.50" D × 2.25" H) |
| Contents | 26 hex-head bolts (one cylinder head) |
| Prop 65 | This product can expose you to chemicals including lead and lead compounds. For more information, visit www.P65Warnings.ca.gov. |