Product Description
Interstate-McBee M-3802487 Engine Piston Kit – STD – 1994–1998 5.9L Cummins (12-Valve)
Quality aftermarket piston kit for the 1994–1998 Dodge Ram 2500/3500 with the 5.9L Cummins 12-valve (6BT). OE-equivalent fit and performance for stock rebuilds. Sold individually (one cylinder).
- Direct replacement: Matches OE dimensions and compression height for stock applications.
- Standard size (STD): For unbored factory cylinders within specification.
- Complete kit: Includes piston, rings, wrist pin, and retaining clips.
- Interstate-McBee quality: Trusted components engineered for durability and reliability.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-3802487 |
| Size | Standard (STD) |
| Engine | 5.9L Cummins 12-valve (6BT) |
| Sold As | Each (1 piston kit). Order 6 for a complete engine. |
| Includes | Piston, ring set, wrist pin, (2) pin clips |
| Application | Stock replacement; not a performance/oversize part |
What’s Included
- (1) Piston – STD size
- (1) Piston ring set (matched to the piston)
- (1) Wrist pin
- (2) Wrist pin retaining clips
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 with 5.9L Cummins (12-valve 6BT)
- Model Years: 1994–1998
Options & Sizing
- This listing is STD. If your cylinders are worn/out of spec, a machine shop may require an oversize piston (e.g., +0.50 mm, +1.00 mm). Check cylinder wear, taper, and out-of-round before ordering.
Install Notes
- Measure bores and confirm piston-to-wall clearance per the Cummins service manual.
- File-fit or gap rings to spec; observe ring orientation and staggered gaps.
- Verify deck height and protrusion; check valve and injector protrusion where applicable.
- Use clean engine oil for assembly and torque fasteners to spec.
Recommended/Related Parts
- Rod bearings & main bearings (size to match crank condition)
- Complete gasket set / head gasket (12-valve)
- Wrist pin bushings (if rods are serviced)
- Cylinder head components (valves, springs, seals) if doing a full refresh
FAQ
How many kits do I need?
Order six (6) kits for a complete set—one per cylinder.
Will STD size fit my block?
Yes, if your cylinders measure within factory STD specifications. Have a machine shop measure before ordering.
Are rings included?
Yes. Each kit includes a matched ring set.
