6127‑39‑3042 Crank Pin Metal For Komatsu Engine S6D155 S4D155 SA6D155

Keywords: 6127‑39‑3042 crank pin bearing, S6D155 connecting rod bearing, Komatsu S4D155 crank pin metal, SA6D155 engine conrod bearing set, diesel engine crankshaft bearing, construction machinery engine spare parts, aftermarket crank pin metal

🔹Product Overview

Crank Pin Metal Part No.6127‑39‑3042 is connecting rod bearing set for Komatsu S6D155, S4D155, SA6D155 diesel engine. It is installed between crankshaft crank pin and connecting rod, playing roles of friction reduction, load bearing and lubrication maintenance for high‑speed rotating crankshaft assembly. This replacement bearing set resolves engine common failures including abnormal knocking noise, metal scraping sound, low oil pressure, crankshaft scuffing and bearing burning damage caused by original bearing wear, alloy layer peeling and lubrication deficiency. Precision dimensional tolerance ensures perfect matching with crank pin journal.

🔹Detailed Specifications

🔹Key Features & Advantages

✅ High‑quality bimetallic alloy material, excellent wear‑resistance and load‑bearing capacity, adapt to heavy‑load engine working condition.

✅ Precise machining size, good surface finish, stable oil‑film forming performance.

✅ Anti‑fatigue alloy layer, effectively avoid peeling and burning under long‑time heavy‑duty operation.

✅ Fully consistent dimension as original spare part, convenient for engine overhaul assembly.

✅ Rigorous quality inspection, control dimensional tolerance to reduce assembling risk.

✅ Essential engine overhaul spare part for Komatsu 155 series diesel engine repair.

🔹Application Scope ‑

Fit Equipment: Komatsu engines S6D155, S4D155, SA6D155, widely matched for excavator, bulldozer and generator set. ‑ Widely used for engine overhaul workshop, equipment refurbishment and fault repair projects.

🔹Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying hydraulic parts, engine parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

🔹Packaging & Shipping ‑

Neutral export carton with foam inner protection to avoid damage during long‑distance transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.