3934046 piston pin is strictly manufactured following Cummins OEM standard, fully compatible with Cummins 6CT8.3, 6CTA8.3, ISC8.3, QSC8.3 heavy-duty diesel engines. Adopting 20CrMnTi carburized alloy steel and 3-stage mirror grinding technology, this wrist pin owns ultra-high surface hardness and strong core toughness, low friction loss and long service life, ideal replacement spare parts for heavy trucks, construction machinery and generator sets.
OEM Part Numbers
Main OE NO.: 3934046 Interchange NO.: 3901597 Fit Engine Models: Cummins 6CT8.3 / 6CTA8.3 / ISC8.3 / QSC8.3 / 6D114
Complete Production Process
- Precision Hot Forging Integrated hot forging for 20CrMnTi steel bar, eliminate internal pores and cracks, improve impact resistance by 45% vs cold-drawn steel.
- Dual-axis CNC Turning Synchronous internal & external turning to guarantee excellent coaxiality, avoid eccentric wear during engine operation.
- Vacuum Carburizing & Tempering Vacuum sealed heat treatment forms wear-resistant hard surface and tough inner core, no softening or brittle fracture under high temperature & heavy load.
- Three-Stage Centerless Grinding & Mirror Polishing Guarantee micron-level precision, reduce friction between piston and connecting rod bushing, prevent dry scratch during cold start.
- Ultrasonic Cleaning & Anti-Rust Vacuum Packaging Remove all metal residues, coated with long-term anti-rust oil, each pin vacuum sealed, anti-corrosion for long sea transportation.
- 100% Full Inspection Before Delivery Every piston pin will be tested on dimension, roundness, hardness and hardened layer, quality inspection report available.
Remarks:
1).The products are suitable for the following Cummins models:
Engine Series: A2300, B3.3, QSB3.3, 4BT3.9, 6BT5.9, 6CT8.3, L8.9, L9.3, ISBE, ISDE, ISC8.3, ISL9, QSL9, ISM11, QSM11, L10, NTA855, N14, KTA19, KTA38, KTA50, QSK45, QSK60, QST30, QSX15, ISX15, VTA28, NH220, ISF2.8, IS3.8, QSF3.8, ISG11, ISG12.
2).If your need item can’t find in this list, please contact with us directly to check more information.
There is many photos and parts number can’t full show in this website.
3). We slso can do OEM and ODM ,If you have other brand require, we also can offer .
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