Block & Internal Parts
ISO Certified Quality Assured
2-5 Day Ship In-stock items
3-12M Warranty MOQ 1 piece

Connecting Rod 4956017 for Cummins B3.3/QSB3.3 – OEM-replacement grade

<p>Get back to work faster with OEM-replacement grade reliability—no more downtime waiting for Cummins factory parts or risking counterfeit rods that fail mid-cycle. This <strong>Cummins B3.3 connecting rod</strong> (part #4956017) delivers exact fit and fatigue-tested strength for B3.3 and QSB3.3 engines, so your rebuild holds up under real-world load cycles.</p> <ul> <li>Direct replacement for Cummins 4956017 — no machining or fitting required</li> <li>Made from forged 4340 alloy steel with micro-polished bearing surfaces (critical for oil film retention on high-RPM B3.3 applications)</li> <li>Pre-balanced to ±2g — avoids crankshaft vibration issues common with budget rods</li> <li>In-stock in Guangzhou warehouse; ships in 2–5 working days, even for single-piece orders</li> </ul>

MOQ

1 Piece

Lead Time

2-5 Business Days

Shipping

120+ Countries

Warranty

3-12 Months

Compatible Brands

CAT Komatsu Hitachi Volvo Hyundai Doosan Kobelco SANY XCMG

Product Specifications

ParameterDetails
Part NameConnecting Rod
Part Number (OEM Reference)4956017
Brand CompatibilityCummins
Machine Model FitmentCummins B3.3, QSB3.3
ConditionNew Aftermarket
Warranty3–12 months against manufacturing defects
PackagingIndividual protective packaging with anti-rust coating, sealed in reinforced cardboard box

Compatible Models

BrandApplicable Models
CumminsB3.3, QSB3.3

Tired of Engine Downtime After Connecting Rod Failure on Your Cummins B3.3 or QSB3.3?

One failed connecting rod can shut down a generator set, water pump, or light-duty construction vehicle for days — costing hundreds to thousands per hour in lost operation and labor. OEM replacements take 2–4 weeks and cost 30–50% more. Worse, counterfeit 4956017 rods lack proper heat treatment and fail within 1/3 the service life, risking catastrophic crankshaft damage.

OEM-Equivalent Quality, In Stock and Ready to Ship

This 4956017 connecting rod is engineered for exact dimensional and mechanical interchangeability with the original Cummins B3.3 and QSB3.3 engines. Built by ISO-certified factories with 10+ years of XUNPO quality oversight, each batch undergoes incoming material inspection and pre-shipment performance validation. It’s designed for use in engine rebuilds, field repairs, and preventive maintenance across excavator auxiliary power units, marine gensets, and municipal water systems.

Where This Part Works

This connecting rod operates under high-cycle reciprocating loads in medium-speed diesel applications — from rural irrigation pumps in Southeast Asia to backup power generators at African telecom sites and port-side hydraulic power units in the Middle East. In these environments, consistent combustion pressure, thermal cycling, and vibration demand precise bearing clearance and fatigue resistance. A mismatched or substandard 4956017 connecting rod replacement directly compromises engine reliability and uptime — especially during peak season or critical infrastructure operation.

Engineering Details That Matter

Forged from SAE 4340 alloy steel, this rod delivers superior tensile strength (≥1,200 MPa) and fatigue resistance over cast alternatives. Its big-end bore is honed to ±0.005 mm tolerance for perfect cap-to-rod alignment and uniform bearing load distribution. The fracture-split design ensures repeatable, OEM-grade bolt torque retention and eliminates cap misalignment risk. Surface hardness is precisely controlled between HRC 38–42 after quench-and-temper treatment, balancing ductility and wear resistance at the wrist pin interface. All contact surfaces are phosphate-coated to prevent galling during assembly and inhibit corrosion during storage or transport.

The Real Cost of Wrong Parts

A $20 cheaper 4956017 rod may save upfront — but risks premature failure, piston seizure, or crankcase damage requiring full engine replacement. Industry data shows non-OEM-equivalent rods increase unscheduled repair frequency by 2.3× and reduce mean time between failures (MTBF) by 40%. True total cost of ownership includes downtime penalties, emergency labor, tow fees, and production loss — often exceeding 20× the part’s unit price. This Cummins B3.3 connecting rod meets ISO 8533 and SAE J1397 standards, ensuring predictable service life and compatibility with OEM service manuals and torque specs.

Why Customers Trust XUNPO

Only ISO 9001-certified factories supply our engine components — every shipment verified with mill test reports and hardness certificates. Each 4956017 connecting rod undergoes 100% dimensional check and dynamic load simulation before release. We stand behind every part with 3–12 months warranty covering manufacturing defects — no questions asked. With 10 years exporting to 120+ countries, our team has validated over 2,800 Cummins part cross-references. Our 20+ technical specialists confirm fitment within 2 hours using OEM service bulletins and real-world teardown data. And because we hold 10,000+ SKUs in our Guangzhou warehouse, this part ships in 2–5 working days — no factory lead time.

Packaging & Shipping

  • Individually wrapped in VCI anti-corrosion paper, secured in custom foam insert inside rigid double-wall cardboard box
  • In-stock items ship within 2–5 working days after order confirmation
  • Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted per destination
  • Real-time tracking provided from warehouse dispatch to final delivery
  • MOQ: 1 piece — supports urgent field repairs and small-batch engine rebuilds

Get Your 4956017 Connecting Rod Now

Your equipment isn’t generating revenue while it waits. Send us your part number (4956017), engine model (B3.3 or QSB3.3), quantity, and destination — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk order. Every day delayed is another day of operational loss.

Frequently Asked Questions

Q: Is this an original Cummins part or an aftermarket replacement?

A: This is an OEM-equivalent aftermarket connecting rod, manufactured by ISO 9001-certified factories to match Cummins B3.3 and QSB3.3 specifications — not sourced from Cummins.

Q: How do I confirm this 4956017 connecting rod fits my specific engine?

A: Provide your engine serial number or machine model — our technical team verifies compatibility using OEM service data and responds within 2 hours.

Q: What is the warranty coverage?

A: 3–12 months limited warranty against manufacturing defects; replacement or refund issued upon verification of defect.

Q: What is the minimum order quantity?

A: 1 piece — no minimum, supporting urgent maintenance and testing needs.

Q: How long does shipping take?

A: In-stock items ship within 2–5 working days. Express options deliver to most destinations in 3–7 days; air and sea timelines vary by region.

Q: Can I receive a sample before placing a bulk order?

A: Yes — first-time customers may request one sample of the 4956017 connecting rod for physical evaluation and fitment testing.

Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com

Part Type Block & Internal Parts
MOQ 1 Piece
Lead Time 2-5 Business Days (in-stock)
Packaging Export Standard Packaging
Quality ISO Certified Factory
Warranty 3-12 Months
Origin Guangzhou, China
Compatibility CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, SANY, XCMG

Shipping Policy

  • In-stock items dispatched in 2-5 business days
  • Multiple freight options: Express, Air, Sea
  • Real-time tracking provided
  • Ships to 120+ countries worldwide
  • Export-standard packaging for all items

Warranty & Quality

  • 3-12 month warranty on all parts
  • ISO-certified factory partners
  • Strict QC inspection before dispatch
  • Zero counterfeit policy -- guaranteed
  • Optional sample testing for new buyers
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