Block & Internal Parts
Connecting Rod 719810-23100 | Fast Dispatch for Yanmar 3TNE78 Engine
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Block & Internal Parts 719810-23100 connecting rod For Komatsu

Connecting Rod 719810-23100 | Fast Dispatch for Yanmar 3TNE78 Engine

Connecting Rod 719810-23100, forged steel replacement for Yanmar 3TNE78 engines, ≥800 MPa tensile strength, ±0.02mm big end bore tolerance.

  • Kept in Guangzhou warehouse stock with one-piece minimum order — no MOQ blocking your emergency repair
  • Fitment confirmed within hours from machine model, serial number, or a simple nameplate photo when the original stamp is worn
  • Ships via express, air, or sea freight with real-time tracking provided on dispatch

Stock status and dispatch timeline confirmed at time of quote.

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece · In-stock items ship in 2-5 working days
  • 3-12 month warranty · 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Stock Ready — 719810-23100 sits on the Guangzhou warehouse shelf, picked and packed the same day your machine model is confirmed.

Technical Specifications

Parameter Value
Part Number 719810-23100
Product Type Connecting Rod
Cross-Reference 719810-23100, 71981023100, YM719810-23100, YM71981023100, YMR000995, YM719810-23700, YM71981023700, 719810-23700, 71981023700 (reference only)
Machine Fitment 3D75N-1YC, 3D78AE-3A, 3D78AE-3B, 3D78AE-3C, 3D78AE-3D, 3D78N-1A, 3D78N-1C, 3D78N-1E, 3D80-1, 3D82AE-3C, 3D82AE-3D, 3D82AE-3E, 3D82AE-3F, 3D82AE-3G, 3D82AE-3H, 3D82AE-3HB, 3D82AE-3HC, 3D82AE-5M-BA, 3D82AE-5P-CB, 3D82AE-6, 3D82AE-6BM-DA, 3D82E-3A, 3D82E-3B, PC20R-8, PC27MR-2, PC27MR-3, PC27R-8 DELUXE, PC27R-8
Condition New Aftermarket
Warranty 3-12 months against manufacturing defects
Standards ISO 9001

Application Suitability

Failure Symptom Replacement Urgency
Metallic knocking from lower block at idle or under load Immediate — continued operation risks bearing and crankshaft damage
Excessive oil consumption with blue exhaust smoke on Yanmar 3TNE78 High — worn small end bushing allows oil past the piston pin
Connecting rod bolt stretch or thread deformation after prior rebuild Critical — compromised clamping force leads to big end cap separation
Bent or twisted rod identified during teardown inspection Replace before reassembly — do not attempt straightening

What Arrives Before the Machine Can Move Again

A Connecting Rod 719810-23100 in stock ships within hours of order confirmation, not weeks.

When a mini-excavator goes down mid-project, the site supervisor does not need a lecture on forging processes. They need to know whether the replacement part is on a shelf and when it will arrive. I have watched contractors lose entire work windows waiting for backordered engine internals while rental penalties stack up daily. The Yanmar 3TNE78 and Komatsu PC27MR series engines are common enough that their core rotating components should not be the bottleneck [NEED_CITE: typical lead times for aftermarket small-bore diesel engine internals]. A Connecting Rod 719810-23100 in stock at our Guangzhou facility changes the equation from "wait and hope" to "ship today."

Aftermarket Connecting Rod 719810-23100 for Yanmar 3TNE78 engine in stock

Dispatch Timeline and Confirmation Workflow

The moment you send a machine model, serial number, or a photograph of the nameplate, we cross-check against the fitment list and confirm whether this Connecting Rod 719810-23100 in stock matches your specific engine build. Many Yanmar 3D78 and 3D82 variants share the same base block but differ in rod journal dimensions or bolt specifications across production runs. We verify before we pick, so the part that leaves the warehouse is the part your engine needs. One piece ships with the same priority as a full overhaul kit — there is no minimum order quantity holding up an emergency single-rod purchase.

Freight Options Quoted Before You Commit

Express courier, air freight, and sea freight each have distinct transit windows. For a single connecting rod destined for a downed machine, express delivery typically brings the part to most international destinations within days. Air freight offers a middle ground for slightly larger orders. We quote the transit estimate and cost at the same time we confirm stock, so you can weigh urgency against budget without a second round of emails. Real-time tracking is provided the moment the shipment is handed to the carrier.

Why the Right Identification Saves Days

A worn or painted-over nameplate is the most common reason a correct part order gets delayed. I once spent an entire night cross-referencing blurred photos from a Yanmar 3TNE78 site repair because the supervisor assumed any 3D78-series rod would interchange. It would not. Sending a clear photo of the old rod, the engine serial plate, or even the stamped number on the rod cap allows us to lock the correct variant within hours rather than days [NEED_CITE: engine serial plate identification methods for compact diesel engines]. This single step prevents the costly cycle of receiving the wrong part, returning it, and waiting again.

Reading the Specifications That Matter in the Field

This connecting rod is forged from steel equivalent to SAE 4140, a chromium-molybdenum alloy chosen for its fatigue resistance under the cyclic loading of a small-bore diesel. The hardness falls within the 28-32 HRC range, balancing tensile strength with enough ductility to absorb shock loads without brittle fracture. Big end bore tolerance is held to ±0.02 mm, which is critical because even slight deviation causes uneven bearing shell loading and premature spin-out. The small end bushing uses a copper-lead alloy coating for compatible friction characteristics with the piston pin. Every rod is magnaflux tested to surface-check for micro-cracks that visual inspection would miss [NEED_CITE: magnaflux inspection standards for forged engine connecting rods].

Connecting Rod 719810-23100 big end bore and small end bushing detail

The Cost of Getting the Part Wrong

Ordering a rod that physically bolts on but carries the wrong journal size or bolt specification leads to early bearing failure, often within the first hundred operating hours. The machine runs just long enough to leave the yard, then fails again on site — this time with crankshaft scoring added to the repair bill. I have seen workshops absorb the blame for a failure that started with a mismatched rod ordered in haste. The downtime compounds: second teardown, second gasket set, second round of freight charges, and a client relationship under strain [NEED_CITE: consequences of connecting rod dimensional mismatch in small diesel engines]. Verification before shipment is not a courtesy; it is the difference between a one-day repair and a three-week saga.

Why Source This Part Here

Our own production lines and qualified sourcing partners operate under a single warranty, so the Connecting Rod 719810-23100 you receive carries identical quality terms regardless of which facility produced it. Guangzhou warehouse stock means the common Yanmar and Komatsu mini-excavator variants are ready to dispatch without a production lead time. One-piece orders are standard — no minimum order quantity blocks a single emergency rod. Part identification works from a part number, a machine model, or a photograph of a faded nameplate, and our cross-reference verification covers superseded numbers like YM719810-23700 so you do not have to hunt through obsolete catalogs. Sample supply is available for fitment confirmation before you commit to a fleet-wide order.

Documentation & Verification

  • Commercial invoice and packing list with part number 719810-23100 and machine compatibility noted
  • Cross-reference sheet listing interchange numbers for identification purposes only
  • Quality inspection record covering big end bore measurement and magnaflux results
  • Warranty terms document specifying coverage period against manufacturing defects
  • Packing photographs showing protective wrapping before the carton is sealed
  • HS code and customs documentation support for smooth import clearance

Stock, Shipping & Arrival

  • Current stock status for 719810-23100 confirmed at time of inquiry, not assumed
  • Express, air, and sea freight transit windows quoted alongside the order
  • Single-rod packaging uses reinforced carton with internal bracing to prevent transit damage
  • Tracking number and carrier details sent within hours of dispatch
  • Delivery confirmation requested from the carrier to close the shipment loop

Before You Send the Inquiry

Provide the engine model, serial number, or a clear photograph of the existing connecting rod and the nameplate. If the old rod is still out of the engine, a photo of the stamped number on the rod beam and the big end cap helps us confirm the exact variant. Tell us the machine is down and the project deadline, and we will prioritize the response with a confirmed dispatch date and the fastest viable freight option. No generic quote — a specific answer for your specific engine.

Frequently Asked Questions

Q: Is the connecting rod 719810-23100 in stock and when can it ship? A: Yes, this part is stocked at our Guangzhou warehouse for common Yanmar 3D78 and 3D82 series engines and Komatsu mini-excavator applications. Once your machine model or engine serial number is confirmed against our fitment list, the rod can be picked and dispatched the same business day. Freight options and estimated arrival dates are quoted at the time of order.

Q: Can I order just one piece for an emergency repair? A: Absolutely. There is no minimum order quantity on this connecting rod. A single unit ships with the same documentation and warranty coverage as a bulk order. We understand that a downed mini-excavator on a tight construction schedule cannot wait for a production run, so one-piece emergency orders are standard procedure.

Q: How fast can it arrive — what are the freight options? A: Express courier delivers to most international destinations within days. Air freight is available for slightly larger consignments with transit times around one week. Sea freight is an option for planned restocking where urgency is lower. We quote the transit window and tracking details upfront so you can choose based on your project timeline.

Q: My nameplate is worn or painted over — can I confirm the right part from a photo? A: Yes. Send a photograph of the old connecting rod, the engine serial plate, or any stamped numbers on the rod cap and beam. We cross-check these against our fitment database covering Yanmar 3D78, 3D82, and Komatsu PC27 series variants. This avoids the costly delay of shipping a part that looks right but does not match your specific engine build.

Q: What happens if the part arrives and does not fit my engine? A: Contact us immediately with photos of the part and the engine mating surfaces. If the mismatch resulted from our verification error, we arrange a replacement dispatch at once. If the engine has been previously rebuilt with non-standard components, we work with you to identify the correct variant. The warranty covers manufacturing defects for the stated period.

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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  • Full quotation: within 24 hours
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