Connecting Rod 4956017 for Cummins Engine B3.3 QSB3.3

Product Specifications

Compatible Models

Tired of Engine Downtime During B3.3 Rebuilds? Get the Right 4956017 Connecting Rod for Cummins B3.3 and QSB3.3

Every hour a construction or mining engine sits idle costs hundreds — sometimes thousands — in lost productivity and contract penalties. Many operators face repeated failures after installing low-grade 4956017 connecting rods: premature bearing wear, rod bolt stretch, or cracked big-end journals. OEM lead times of 3–4 weeks delay critical rebuilds, while counterfeit parts lack proper heat treatment and material traceability.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This 4956017 connecting rod is manufactured in ISO 9001-certified facilities under strict dimensional and metallurgical control. Built for Cummins B3.3 and QSB3.3 engine rebuilds, it undergoes full-load performance validation before shipment — matching OEM torque specs, surface hardness, and fatigue resistance. With 10 years of global export experience and 10,000+ SKUs in stock, XUNPO delivers verified replacement parts for urgent field repairs and scheduled overhauls.

Where This Part Works

This connecting rod supports high-duty-cycle applications including quarry crushing, port material handling, municipal roadwork, and demolition site operations. In B3.3-powered equipment, it transmits combustion forces between piston and crankshaft under cyclic loads up to 120 MPa peak pressure. Correct fitment and material integrity are essential — especially where engines run continuously at 85–100% load factor and ambient temperatures exceed 45°C.

Engineering Details That Matter

Forged 4340 alloy steel ensures optimal tensile strength (≥1,200 MPa) and fatigue resistance under repeated compression-tension cycles. The rod’s big-end bore is honed to ±0.005 mm tolerance for precise bearing clearance and oil film stability. Shot-peened surfaces improve surface compressive residual stress, delaying crack initiation by up to 40% versus non-treated equivalents. Each unit carries batch-traceable heat treatment records, confirming tempering at 580°C and quenching in polymer medium for uniform microstructure.

The Real Cost of Wrong Parts

A $20 cheaper rod may save upfront — but risks catastrophic failure within 200 operating hours due to insufficient yield strength or poor surface finish. Industry data shows non-compliant connecting rods increase crankcase oil contamination by 3× and raise vibration levels above ISO 20816-3 Class C thresholds. Total cost of ownership includes downtime labor, secondary damage to crankshafts and cylinder blocks, and delayed project timelines. This 4956017 rod meets Cummins’ original dimensional and metallurgical specifications — reducing long-term TCO by ensuring 10,000+ hour service life under standard maintenance.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually wrapped in rust-inhibiting paper, secured in custom foam inserts, and packed in double-walled corrugated boxes
• In-stock items shipped within 2–5 working days after order confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted based on destination and urgency
• Real-time tracking number provided upon dispatch
• MOQ: 1 piece — designed for emergency repairs and small-batch rebuilds

Get Your 4956017 Connecting Rod Now

Your B3.3 or QSB3.3 engine shouldn’t wait weeks for a single rod. Send us your part number (4956017), exact engine model (e.g., QSB3.3-C125), and required quantity — we’ll issue a competitive quote within 24 hours. First-time buyers can request a sample for physical verification. Every day your machine stands still, your operational budget bleeds — act now to restore uptime.

Frequently Asked Questions