6BT 6BT5.9 Connecting Rod Bearing 3901171 +0.25 for Dong‑feng Truck

Keywords: 3901171 +0.25 connecting rod bearing, 6BT 6BT5.9 engine con‑rod bearing, oversized connecting rod shell, Dong‑feng truck diesel engine spare parts, construction machinery crankshaft system replacement components

Product Overview

Connecting Rod Bearing Part No.3901171 (+0.25 Oversize) is the over‑size repair sliding bearing for 6BT / 6BT5.9 diesel engines, widely fitted for Dong‑feng trucks and related heavy‑duty engineering machinery. It is installed between connecting rod and crankshaft journal, specially used for overhaul after crankshaft journal grinding repair, bears cyclic impact load and reduces running friction. This oversize connecting rod bearing resolves issues such as large journal clearance, engine knocking noise, low oil pressure and power drop caused by crankshaft journal wear. Every bearing set is strictly inspected for dimension, material and surface finish before carton packaging and shipment.

Detailed Specifications

Key Features & Advantages

• ✅ High‑quality bimetallic alloy material, excellent load‑bearing, wear‑resistance and anti‑ablation performance under heavy‑duty cyclic working conditions.
• ✅ Precision oversized machining (+0.25), perfect matching for reground crankshaft journal, maintain ideal assembly clearance.
• ✅ Smooth inner and outer working surface, easy to form stable lubricating oil film, effectively protect repaired crankshaft journal from scratching.
• ✅ Effectively eliminate engine knocking noise, insufficient oil pressure and power loss caused by worn crankshaft and old standard‑size bearings.
• ✅ Outstanding fatigue resistance, resist frequent impact load of piston‑connecting‑rod assembly, extend engine overhaul service life.
• ✅ Perfect match for 6BT / 6BT5.9 engine overhaul, crankshaft grinding repair and connecting rod maintenance projects.
• ✅ Complete set supplied, convenient for direct replacement installation.

Application Scope

Fit Equipment: Dong‑feng trucks and heavy‑duty machinery equipped with 6BT / 6BT5.9 diesel engine ‑ Widely used for engine repair workshops and heavy‑duty engine overhaul repair services.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic 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

Export carton with independent anti‑scratch protective wrapping, prevent bearing surface damage in 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.