The 3929886 Cummins 6BT camshaft is built for Dodge Ram 2500 and Case IH equipment. Its chilled iron construction resists lobe wear and ensures precise timing. Quality guaranteed.
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The Cummins 6BT camshaft (OEM: 3929886) is a precision-ground component designed specifically for 12-valve 5.9L engines.
It features induction-hardened lobes to prevent premature wear and fits equipment including 1989-1998 Dodge Ram trucks and Case IH tractors.
In stock for global export.
Surface hardness is critical for camshaft longevity. Our manufacturing process includes rigorous induction hardening of the lobes and journals to resist pitting and “wiping” – a common issue in older diesel engines running on modern low-zinc oils. Whether you are rebuilding a First Gen Dodge Ram or a Case IH tractor, this camshaft provides the durability and performance reliability you demand.
| Specification | Value |
|---|---|
| Product Type | Camshaft (Stock Profile) |
| Engine Model | Cummins 6BT / 6BTA (12-Valve) |
| Material | Chilled Cast Iron / Forged Steel |
| Surface Hardness | HRC 50-60 (Induction Hardened) |
| Valve Lift | Standard OEM Specification |
| Gear Drive | Helical Gear Compatible |
| OEM Reference | 3929886, 3901430, 3914639 |
| Cross Reference | 12-Valve Stock Cam, 5.9L Camshaft |
| Typical Applications | Dodge Ram (1989-1998), Case IH |
| Engine Model | Application Field | Typical Equipment Brands & Models |
|---|---|---|
| Cummins 6BT (12-Valve) | Automotive | Dodge Ram 2500 / 3500 (1989-1998), School Buses |
| Cummins 6BTA (5.9L) | Agriculture | Case IH Tractors (5130, 5140, 5230), Combines |
| Cummins B-Series | Construction | Excavators, Graders, Loaders |
Ruich Value supplies a dedicated range of Cummins engine parts, including new aftermarket and remanufactured replacements. Our coverage includes popular engine families such as the 6BT/6BTA, 4BT, ISB, ISX, and NT855 series. For a complete catalog of our Cummins camshafts and valvetrain components, please contact our sales team.
| Model | Main PN | Cro. Ref. PN | Engine Model | Application |
|---|---|---|---|---|
| V28 | 4073134 | 3070838, 3053525, 3801308, C3970366 | V28 Series (V12) | Heavy-duty Mining (Terex), Marine, Large Gensets |
| NH220 | 3801114 | 3044767, 3042568, 111888 | NH220 / NT855 Small Cam | Classic Heavy Trucks, Early Generators, Construction Machinery |
| V903 | 199180 | 3070838, 3053525 | V903 / VT903 Series | Agricultural Machinery, Drilling Rigs, Military |
| NT855 | 3801030 | 3044767, 3047452, 3801749 | NT855 Big Cam | Heavy-duty Trucks, Mining (Komatsu), Power Generation |
| 4BT | 3929039 | 3925582, 3929038, 3929885 | 4BT Series (3.9L) | Light Trucks, Skid Steer Loaders, Pumping Units |
| 6BT | 3949042 | 3929886, 3907824, 3914639, 3929041, 3283179 | 6BT Series (12-Valve) | Dodge Ram, Freightliner, Agricultural Tractors |
| 6CT | 3934168 | 3914640, 3923478, 3917882, 3929734, 3924471, 3356593 (Kit) | 6CT Series (8.3L) | City Buses, Construction Cranes, Graders |
| ISB6.7 | 3979506 | 3954099, 3976620, 3966431, 3966430 | ISB6.7 / QSB6.7 Series | School Buses (Blue Bird), Delivery Trucks (Paccar) |
| L10 | 3801110 | 3803528, 3049024, 3065891 | L10 Series | Vocational Trucks, Garbage Trucks, Transit Buses |
| M11 | 3803703 | 3084568, 3417765, 3804300 | M11 / ISM11 Series | Heavy-duty Fleet Trucks, Cement Mixers |
| N14 | 3803555 | 3066892, 3417766, 3803965 | N14 Select / Plus | Class 8 Over-the-Road Trucks (Peterbilt, Volvo) |
| K19 | 3066877 | 3066881, 3076767 | K19 / KTA19 Series | Mining Excavators, Marine Propulsion, Industrial |
| K38 | 3066884 | 3020613, 3066882 | K38 Series (V12) | High-Horsepower Generators, Mining Trucks |
| K50 | 3066291 | 3066292, 3076769 | K50 Series (V16) | Marine Vessels, Extra-Large Mining Equipment |
| ISX15 | 4101432 | 4298626, 4089371, 4954905 | ISX / QSX15 (Signature) | Highway Trucks, Freight Transportation |
| ISF 2.8 | 5267994 | 5267994 (Standard) | ISF 2.8 Series | Foton Tunland, JAC Trucks, Light Vans |
| ISF 3.8 | 4995830 | 4995830 (Standard) | ISF 3.8 Series | Medium Duty Trucks, Foton Aumark |
Premature lobe wear is often caused by the use of modern engine oils that lack sufficient zinc (ZDDP) additives, or by improper break-in procedures. Our aftermarket 3929886 camshafts undergo a specialized chilling process to increase surface hardness, making them more resistant to wear even with modern lubricants.
No, this part number (3929886) is specifically for the 12-Valve 6BT/6BTA engines (approx. 1989-1998). The 24-Valve ISB engines use a different camshaft profile and sensor reluctor ring. Please check your engine serial number or valve cover description before ordering.
When installing a new camshaft, it is critical to also replace the tappets (lifters) to ensure proper mating surfaces. Apply a high-quality assembly lube with high ZDDP content to all lobes and journals. Upon first start, run the engine at varying RPMs (above idle) for the first 20 minutes to properly work-harden the mating surfaces.
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