Product Specifications
| Parameter | Details |
|---|
| Part Name | Connecting Rod |
| Part Number (OEM Reference) | 719810-23100, 71981023100, YM719810-23100, YM71981023100 |
| Brand Compatibility | YANMAR, Komatsu |
| Machine Model Fitment | Yanmar 3TNE78, 3TNE78A; Komatsu 3D75N-1YC, 3D78AE-3A/B/C/D, 3D78N-1A/C/E, 3D80-1, 3D82AE-3C/D/E/F/G/H/HB/HC/5M-BA/5P-CB/6/6BM-DA, 3D82E-3A/B, PC20R-8, PC27MR-2, PC27R-8 DELUXE, PC27R-8 |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Individual protective packaging with anti-rust oil and foam cushioning in reinforced corrugated box |
Compatible Models
| Brand | Applicable Models |
|---|
| YANMAR | 3TNE78, 3TNE78A |
| Komatsu | 3D75N-1YC S/N 01661-UP, 3D78AE-3A S/N 00715-UP, 3D78AE-3B S/N 00101-UP, 3D78AE-3C S/N 00101-UP, 3D78AE-3D S/N 02552-UP, 3D78N-1A S/N 00101-UP, 3D78N-1C S/N 00715-UP, 3D78N-1E S/N 03598-UP, 3D80-1 S/N 00501-UP, 3D82AE-3C S/N 01208-UP, 3D82AE-3D S/N 00101-UP, 3D82AE-3E S/N 04840-UP, 3D82AE-3F S/N 04840-UP, 3D82AE-3G S/N 04840-UP, 3D82AE-3H S/N 04840-UP, 3D82AE-3HB S/N 04840-UP, 3D82AE-3HC S/N 04840-UP, 3D82AE-5M-BA S/N 00246-UP, 3D82AE-5P-CB S/N 00246-UP, 3D82AE-6 S/N 04634-UP (For PC27MR-3), 3D82AE-6BM-DA S/N 04634-UP, 3D82E-3A S/N 00101-UP, 3D82E-3B S/N 00101-UP, PC20R-8 S/N F30001-Up, PC20R-8 S/N F30791-Up, PC27MR-2 S/N F00103-Up, PC27R-8 DELUXE S/N F30671-Up, PC27R-8 DELUXE S/N F31103-Up, PC27R-8 S/N F30001-Up, PC27R-8 S/N F31103-Up, PC27R-8 S/N F32154-Up |
Frustrated by Connecting Rod Failures on Yanmar 3TNE78 Engines?
One failed connecting rod can shut down your excavator or generator set for days — costing hundreds or thousands per hour in idle time. Many buyers receive counterfeit 719810-23100 rods with incorrect pin bore tolerances or substandard steel, leading to catastrophic engine failure during high-load operation. OEM parts take weeks to arrive and cost 40% more. And sourcing matching rods for both Yanmar 3TNE78 and Komatsu 3D78 platforms from separate suppliers adds complexity and delay.
OEM-Equivalent Quality, In Stock & Ready to Ship
This yanmar connecting rod is manufactured in ISO 9001-certified facilities using forged SAE 1045 steel, fully heat-treated to 260–280 HB hardness, and precision-machined to OEM dimensional tolerances (±0.01 mm). Every batch undergoes 100% geometric inspection and dynamic load testing before shipment. With Guangzhou XUNPO’s warehouse holding over 10,000 SKUs, this 719810-23100 replacement rod ships within 2–5 working days — no waiting for production runs or overseas air freight delays.
Where This Part Works
This connecting rod supports critical applications across construction sites, quarry operations, port material handling, and agricultural power units where Yanmar 3TNE78 and Komatsu 3D78-series engines drive hydraulic pumps, generators, and travel systems. Under continuous duty cycles at 2,200–2,800 rpm and peak cylinder pressures up to 12 MPa, precise rod geometry and fatigue resistance prevent bending, cap separation, or bearing seizure — directly impacting uptime and service life.
Engineering Details That Matter
Forged SAE 1045 steel delivers superior grain flow and tensile strength versus cast alternatives — essential for resisting cyclic stress in compact 3-cylinder diesel engines. Shot-peened surface finish increases fatigue life by 35% compared to untreated rods. Precision-ground big-end and small-end bores ensure correct bearing clearance (0.025–0.045 mm) and alignment with crankshaft journals. The rod bolts are grade 12.9, torque-to-yield specification matched to original equipment, preventing loosening under thermal expansion. All components comply with ISO 6892-1 tensile testing and ISO 4287 surface roughness standards.
The Real Cost of Wrong Parts
A $45 counterfeit rod may save upfront, but risks $2,500+ in secondary damage: cracked crankshaft, scored cylinder walls, or seized pistons requiring full engine rebuild. Downtime for a single excavator averages $1,800/day. OEM-equivalent parts like this 719810-23100 replacement rod reduce total cost of ownership (TCO) by delivering 98% of OEM service life at 55% of OEM price — backed by verified test data, not marketing claims. We follow ISO 8573-1 for cleanliness control and ISO 13715 for geometric tolerance verification.
Why Customers Trust XUNPO
Every yanmar connecting rod is sourced only from ISO 9001-certified factories, with incoming material inspected for chemical composition (spectrometry) and microstructure (metallography). Each unit undergoes pre-shipment performance validation including dimensional CMM scanning and simulated load cycling. We offer 3–12 month warranty covering all manufacturing defects — no exceptions. With 10 years of export experience to 120+ countries, our technical team has verified over 25,000 part matches for Yanmar, Komatsu, CAT and other brands. You’ll get accurate compatibility confirmation within 2 hours. Our Guangzhou warehouse holds 10,000+ fast-moving SKUs — including this 3tne78 connecting rod — ready for same-day dispatch.
Packaging & Shipping
- Individually sealed with rust-inhibiting oil, wrapped in EPE foam, and packed in double-walled corrugated carton with internal bracing
- In-stock items ship within 2–5 working days after order confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — selected based on urgency and destination
- Real-time tracking number provided upon dispatch, updated until final delivery
- MOQ is 1 piece — designed for urgent field repairs and small-batch maintenance
Get Your 719810-23100 Connecting Rod Now
Your engine isn’t generating revenue while it’s offline. Send us the part number 719810-23100, your machine model (e.g., Komatsu PC27R-8 or Yanmar 3TNE78A), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. Stock is available now in Guangzhou.
Frequently Asked Questions
Q: Is this an original Yanmar part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket connecting rod, produced in ISO 9001-certified factories to match Yanmar’s original specifications for material, hardness, dimensions, and performance.
Q: How do I confirm if 719810-23100 fits my specific machine?
A: Provide your exact machine model and serial number range (e.g., Komatsu 3D82AE-3H S/N 04840-UP or Yanmar 3TNE78A), and our technical team will verify compatibility within 2 hours.
Q: What is the warranty period for this connecting rod?
A: We offer 3–12 months warranty against manufacturing defects. If failure occurs due to material or workmanship, we replace or refund unconditionally.
Q: What is the minimum order quantity?
A: MOQ is 1 piece. No bulk requirement — ideal for emergency repairs and fleet maintenance planning.
Q: How long does shipping take?
A: For in-stock items, standard lead time is 2–5 working days from order confirmation. Express options deliver globally in 3–7 business days.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers are eligible for sample testing. Contact us via WhatsApp or email to arrange.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
