Product Description
Cummins 3802160 — Engine Piston Kit (Marine Style Bowl, Standard Bore)
MPN: 3802160 | Also Known As: marine-bowl piston kit, large-bowl piston | Cross-Refs: 3907163 (rings)
Why This Part
- ✓ Genuine Cummins marine-style (“large bowl”) piston profile favored on many 12-valve builds. :contentReference[oaicite:0]{index=0}
- ✓ Standard bore for 102.0 mm (4.016") cylinders (B-Series). :contentReference[oaicite:1]{index=1}
- ✓ Direct fit for Non-Certified B-Series 5.9L applications and popular as a 12V upgrade (verify by VIN/ESN). :contentReference[oaicite:2]{index=2}
- ✓ Restores compression and durability with OE metallurgy.
Quick Specs
| Type | Engine piston kit (marine style bowl) |
|---|---|
| OE Part # | 3802160 |
| Bore Size | STD — 102.0 mm / 4.016" (B-Series) |
| Compression Ratio | Approx. 17.5:1 (B-Series applications) * |
| Qty Required | Sold individually (order 6 for a full set on 6BT) |
*Representative for many B-Series kits; confirm by ESN/CPL. :contentReference[oaicite:3]{index=3}
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1998 | 5.9L 12-Valve 6BT (B-Series) | Ram 2500/3500 |
Industrial/Off-Highway: 3.9L 4BT and 5.9L 6BT Non-Certified B-Series; always verify by ESN/CPL before ordering. :contentReference[oaicite:4]{index=4}
Important: Cummins notes the 3802160 kit is used primarily on Non-Certified 5.9L B engines; XDP lists this as a Marine Style “Large Bowl” piston commonly used as an upgrade on 12-valve trucks (not factory-equipped). Verify by VIN/ESN. :contentReference[oaicite:5]{index=5}
Often Paired With
- Piston ring set (STD): 3907163 (if not included in your kit)
- Head gasket set & fasteners (reassembly best practice)
- Rod & main bearings (during overhaul)
- Oil cooler service to remove debris after failure
What’s In The Box
- (1) Genuine Cummins Engine Piston Kit (3802160) — contents may vary by ESN/CPL
Install Tips
- Measure bores and confirm STD size before installation; hone as needed to spec.
- Set ring end-gaps and piston-to-bore clearances per Cummins procedures.
- Cleanliness is critical — flush oiling system and verify injector spray patterns.
FAQ
WILL THESE PISTONS FIT MY 1989–1998 5.9L 12-VALVE?Yes—3802160 is widely used on 5.9L 12-valve 6BT builds; Cummins lists it primarily for Non-Certified B-Series applications. Verify by VIN/ESN/CPL before purchase.
ARE THESE THE “MARINE STYLE / LARGE BOWL” PISTONS?Yes—XDP identifies 3802160 as Marine Style “Large Bowl” pistons commonly used as an upgrade on 12-valve engines (not factory-equipped on Dodge pickups). :contentReference[oaicite:6]{index=6}
WHAT SIZE ARE THEY?Standard bore for the Cummins B-Series: 102.0 mm (4.016"). Always confirm bore size and cylinder condition before installation. :contentReference[oaicite:7]{index=7}
WHAT’S THE COMPRESSION RATIO?Typical B-Series kits list approximately 17.5:1 with this bowl style; confirm by ESN/CPL and intended application. :contentReference[oaicite:8]{index=8}
HOW MANY DO I NEED?Order 6 piston kits for a complete set on a 6BT 5.9L.
