Product Description
CUMMINS 3283337 OEM CYLINDER HEAD GASKET (+.010) – 5.9L 12-VALVE (1989–1998)
The Cummins 3283337 OEM cylinder head gasket (+.010) is the genuine oversize (OS1) head gasket engineered for 1989–1998 Dodge Ram 2500/3500 trucks with the 5.9L 12-valve 6BT. This +.010" thickness gasket is designed specifically for engines that have had the head and/or block lightly machined, restoring proper compression, gasket crush, and long-term sealing on high-mileage work trucks, tow rigs, and performance builds.
Why Choose the Genuine CUMMINS 3283337 OS1 Gasket?
- Designed by Cummins specifically for 5.9L 12V 6BT B-series engines.
- +.010" (OS1) oversize thickness to compensate for material removed during resurfacing.
- Multi-layer steel design for excellent combustion and fluid sealing under load and boost.
- Exact coolant/oil passage geometry for consistent OEM sealing performance.
- Ideal for hard-working trucks, towing, and mild performance upgrades when combined with proper head fasteners.
Fitment Details
This Cummins head gasket fits the following automotive applications:
- 1989–1993 Dodge Ram 2500 / 3500 – 5.9L 12-valve (6BT)
- 1994–1998 Dodge Ram 2500 / 3500 – 5.9L 12-valve (6BT)
It is also used on many industrial and off-highway Cummins 6B/6BT B-series engines. Always verify by engine serial number (ESN) and build list before ordering.
This is the +.010" oversize (OS1) 12-valve head gasket. For other thicknesses and related genuine Cummins parts:
- Standard thickness 12V head gasket: CUMMINS 3283335 OEM CYLINDER HEAD GASKET – 5.9L 12-VALVE STANDARD THICKNESS
- +.020" oversize 12V head gasket: CUMMINS 3283339 OEM CYLINDER HEAD GASKET (+.020) – 5.9L 12V (1989–1998)
- Complete upper engine gasket set with standard-thickness head gasket: CUMMINS 4089649 OEM UPPER ENGINE GASKET SET – 5.9L 12-VALVE (1989–1998)
What’s Included
- (1) Genuine Cummins 3283337 cylinder head gasket, +.010" oversize (OS1)
Installation Notes
- Confirm required gasket thickness based on measured material removal/RA finish on the head and block.
- Inspect head and block for flatness and cracks before assembly.
- Follow Cummins torque sequence and torque values exactly; use clean, dry threads unless otherwise specified.
- Replace head bolts if stretched; consider head studs for increased boost or heavy towing.
- Refill with fresh coolant and oil, then pressure-test after the first full heat cycle.
Specifications for cummins 3283337
| Brand | Cummins Genuine Parts |
| Part Number | 3283337 |
| UPC | 704674776628 |
| GTIN | 00704674776628 |
| Application | 5.9L 12-valve (6BT) Cummins B-series engine – 1989–1998 Dodge Ram 2500/3500, plus select industrial 6B/6BT applications (verify by ESN). |
| Gasket Type | Cylinder head gasket, multi-layer design |
| Thickness | +.010" oversize (OS1) |
| Shipping Info | Ships from CPP Diesel with free ground shipping to the continental U.S. Approx. shipping weight 2.25 lb; typical package dimensions ~37.4" x 14.17" x 0.20". |
| Cross Reference | Cummins: 3283000, 3283337, 3903654, 3907058, 3915723, 3915731, 3917359, 3918306, 3921396 |
| E-Codes | Not applicable (component-level gasket – no separate emissions certification) |
| Prop 65 Warning | This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. |
FAQ
WILL THIS GASKET FIT MY 1989–1998 5.9L 12-VALVE RAM?Yes. The Cummins 3283337 head gasket is designed for 1989–1998 Dodge Ram 2500/3500 trucks with the 5.9L 12-valve 6BT. If you are unsure, confirm fitment by VIN or engine serial number (ESN) before ordering.
WHEN SHOULD I USE THE +.010" (OS1) THICKNESS INSTEAD OF STANDARD?
Choose the +.010" OS1 gasket when the cylinder head and/or block has been resurfaced and material removed. The extra thickness helps restore compression ratio and proper gasket crush. If your head and block are still at factory height, consider the standard thickness CUMMINS 3283335 head gasket.
IS THIS GASKET COMPATIBLE WITH 24-VALVE OR COMMON-RAIL CUMMINS ENGINES?
No. This part is for 12-valve 6BT engines only. For 24-valve (1998.5–2002) and common-rail (2003+) 5.9L Cummins, you must use their specific head gaskets and gasket sets.
CAN I REUSE A CUMMINS HEAD GASKET?
No. Head gaskets are single-use components. Always install a new Cummins head gasket any time the head is removed to ensure proper sealing and reliability.
WHAT OTHER CUMMINS PARTS SHOULD I CONSIDER WHILE I AM DOING THE HEAD GASKET?
Many customers pair this 3283337 gasket with a full upper gasket set and, if needed, a standard or +.020" gasket for other builds:
- Standard thickness head gasket: CUMMINS 3283335 OEM CYLINDER HEAD GASKET – 5.9L 12-VALVE
- +.020" oversize head gasket: CUMMINS 3283339 OEM CYLINDER HEAD GASKET (+.020) – 5.9L 12V
- Complete upper engine gasket set: CUMMINS 4089649 OEM UPPER ENGINE GASKET SET – 5.9L 12-VALVE
