6x STD Piston Kit | 3928673 / 3902421 / 3934047 / 3928674 | For 1994-1998 Dodge Cummins 5.9L 12V 6x STD Piston Set (w/ Rings & Pins) — For 1994-1998 Dodge Cummins 5.9L 12V 🔧 Direct Replacement ✅ 6‑Piece Set 🛡️ Standard Bore (STD) OE / Part Numbers 3928673 3902421 3934047 3928674 Fully interchangeable OEM numbers for 12-valve engines Kit Includes / Quantity 6 Pieces Specifications Bore: Standard (STD) — 4.02″ / 102mm Compression Ratio: 17.5:1 🚗 Vehicle Fitment 1994-1998 Dodge 5.9L 12-Valve Cummins Dodge Ram 2500 / 3500 1994 – 1998 5.9L Cummins 6BT 12V · P7100 injection pump · 2WD / 4WD ✅ Fitment Note: This piston set is specifically designed for the 12‑valve 6BT engine (1994‑1998). Not compatible with 24‑valve (1998.5‑2002) or common‑rail engines.
⚠️ Always verify your engine serial number (ESN) and piston bowl style before ordering.
📩 If unsure, provide your VIN or engine serial number — we will confirm fitment within 24 hours. 🔧 Condition: Brand New · Aftermarket ⚙️ Included: Pistons, rings, piston pins (wrist pins) — complete 6‑cylinder set 🔩 Material: High‑strength aluminum alloy 📐 Bore Size: Standard (STD) — 4.02 in / 102 mm 🔧 Quality: Factory tested 🛡️ Features: Interchange numbers: 3928673, 3902421, 3934047, 3928674 🔧 If you experience any issues, please contact us — we will resolve problems quickly.
Please avoid opening a return case directly, as we can typically resolve issues faster through communication. 📩 Questions? Contact us before opening a return — we will respond within 24 hours.