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3-12M Warranty MOQ 1 piece
Block & Internal Parts Main & Con Rod Bearings

Connecting Rod Bearing Kit for Kubota D1803 Engine – OEM Replacement

<p>Stop engine knock and extend D1803 service life with precision-matched bearing clearances — this <strong>Kubota D1803 connecting rod bearing</strong> kit delivers OEM-equivalent performance without the wait or markup. Built for high-hour excavators and tractors where downtime costs thousands, it eliminates guesswork with verified fitment across 200+ Kubota models — from KX040-4 to L2800F and beyond.</p> <ul> <li>Includes both upper and lower shells (17311-22310 & 17311-22312) with correct eccentricity for proper crankshaft alignment</li> <li>Pre-greased with high-load molybdenum disulfide coating — critical for cold-start protection in hydraulic excavator duty cycles</li> <li>Ships same-day from Guangzhou warehouse — no backorders, no counterfeit risk, just ISO-certified parts tested before dispatch</li> <li>Fits D1803MDI and D1803-CR engines without modification — verified by our in-house Kubota engine specialist</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
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Tags: #connecting rod bearing kit #D1803 engine bearing #Kubota D1803 connecting rod bearing #Kubota D1803MDI bearing replacement kit #Kubota excavator bearing kit #Kubota tractor engine parts #KX040-4 connecting rod bearing #L2800F engine connecting rod bearing kit

Product Specifications

ParameterDetails
Part NameConnecting Rod Bearing Kit
Part Number (OEM Reference)17311-22310, 17311-22312, 1731122310, 1731122312
Brand CompatibilityKubota, Hyundai
Engine Model FitmentKubota D1803, D1803MDI, D1803-CR
MaterialHigh-grade Babbitt metal on steel back, precision-ground surface
ConditionNew Aftermarket
Warranty6 months against manufacturing defects
PackagingOriginal sealed box with anti-rust paper and foam cushioning

Compatible Models

BrandApplicable Models
KubotaKX033-4, KX040-4, KX121-2, KX121-3, KX121-3S, KX121-3ST, KX161-2, KX161-3, KX161-3S, KX161-3ST, KX91-3, KX91-3S, KX91-3S2, U35, U35-4, U35S, U35-S2, U45S, U45ST, U48-5, R420, R420S, R430, R510, R510B, R520, R520S, L2250DT, L2250F, L2500DT, L2500F, L2501D, L2501F, L2501H, L2550DT, L2550DT-GST, L2550F, L2550-TOW, L2600DT, L2600F, L2650DT, L2650DT-GST, L2650DT-WET, L2650F, L2800DT/HST, L2800F, L2850DT, L2850DT-GST, L2850F, L2900DT, L2900DT-GST, L2900F, L2950DT, L2950DT-GST, L2950DT-WET, L2950F, L3000DT, L3000F, L3010DT/GST/HST, L3010F, L3130DT/GST/HST, L3130F, L3200DT, L3200F, L3200H, L3240DT, L3240DT/GST, L3240DT-3, L3240F, L3240F-3, L3240GST, L3240GST-3, L3240HST, L3240HST-3, L3240HSTC, L3240HSTC-3, L3250DT, L3250F, L3300DT, L3300DT-GST, L3300F, L3301DT, L3301F, L3301H, L3302, L3302H, L3400DT/HST, L3400F, L3410DT/GST/HST, L3430DT/GST/HST(C), L3450DT, L3450DT-GST, L3450DT-WET, L3450F, L35, L3540GST, L3540GST-3, L3540HST, L3540HST-3, L3540HSTC, L3540HSTC-3, L3560DT, L3560GST, L3560HST, L3560HSTC, L3560HSTC-LIMITED, L3560HST-LIMITED, L3600DT, L3600DT-C, L3600DT-GST, L3600DT-GST-C, L3650DT, L3650DT-GST, L3650DT-WET, L3650F, L3700SU, L3710DT/GST/HST, L3710DT-HST-C, L3800DT, L3800F, L3800H, L3830DT/GST/HST, L3830F, L39, L3901DT, L3901F, L3901H, L3902, L3902H, L3940DT, L3940DT/GST/HST, L3940DT-3, L3940GST, L3940GST-3, L3940HST, L3940HST-3, L3940HSTC, L3940HSTC-3, L4060DT, L4060GST, L4060HST, L4060HSTC, L4060HSTC-LIMITED, L4060HST-LIMITED, L4200DT, L4200DT-C, L4200DT-GST, L4200DT-GST-C, L4200F, L4200F-C, L4200F-GST, L4240DT, L4240DT/GST/HST, L4240DT-3, L4240GST, L4240GST-3, L4240HST, L4240HST-3, L4240HSTC, L4240HSTC-3, L4300DT, L4300F, L4310DT/GST/HST, L4310DT-GST-C/HST-C, L4310F, L4330DT/GST/HST(C), L4350DT, L4400DT, L4400F, L4400H, L45, L4600DT, L4600F, L4600H, L4610DT-GST, L4610DT-HST, L4610DT-HST-C, L4630DT/GST(C)/HST, L47, L4701DT, L4701F, L4701H, L4740GST, L4740GST/HST, L4740GST-3, L4740HST, L4740HST-3, L4740HSTC, L4740HSTC-3, L4760GST, L4760HST, L4760HSTC, L48, L4802DT, L4802DTM, L4802F, L4802H, L4850DT, L5030GST/HST(C), L5040GST, L5040GST-3, L5060GST, L5240HST, L5240HST-3, L5240HSTC, L5240HSTC-3, L5450DT, L5460HST, L5460HSTC, L5740HST, L5740HST-3, L5740HSTC, L5740HSTC-3, L6060HST, L6060HSTC, M4030, M4030DT, M4030SU, M4030SU-TF, M4700, M4700DT, M4800SUD-F, M4800SU-F, M4900, M4900-CAB, M4900DT, M4900DT-CAB, M4900SU, M4900SUDT, M5030, M5030DT, M5030SU, M5030SUMDT, M5140DT, M5140DTC, M5140F, M5140FC, M5140HD, M5140HDC, M5400, M5400DT, M5400DT-N, M5640SU, M5640SUD, M5640SUD-1, M5660SUH, M5660SUHD, M5700, M5700-CAB, M5700DT, M5700DT-CAB, M5700DTN, M5700HD, M5700HDC, M59, M62, MX4700DT, MX4700F, MX4700H, MX4800DT, MX4800F, MX4800H, MX5000DT, MX5000F, MX5000SU, MX5100DT, MX5100F, MX5100H, MX5200DT, MX5200F, MX5200H, MX5400DT, MX5400DTC, MX5400F, MX5400H, MX5400HSTC, MX5800H, MX6000H, MX6000HSTC
HyundaiHDF15-5, HDF18-5, HSL650-7

Tired of Connecting Rod Failures in Your Kubota D1803 Engine? Get the Right Connecting Rod Bearing Kit for KX040-4 and L2800F

Every hour your excavator or tractor sits idle due to a failed connecting rod bearing costs hundreds — sometimes thousands — of dollars in lost productivity. Counterfeit or underspec bearings wear out 1.5× faster, leading to crankshaft damage and unplanned engine rebuilds. OEM parts take 3–4 weeks to arrive, halting critical jobs on construction sites or farms. And sourcing correct bearings across Kubota’s wide model range — from KX040-4 to L2800F — is time-consuming and error-prone.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This Kubota D1803 connecting rod bearing kit delivers exact dimensional and metallurgical compliance with original factory specs — verified through pre-shipment performance testing. Backed by 10 years of global export experience and 20+ in-house technical engineers, we supply 10,000+ SKUs from our ISO-certified partner factories. Designed for heavy-duty use in engine overhauls, it ensures stable combustion pressure and smooth crankshaft rotation during continuous operation in excavators and tractors.

Where This Part Works

This connecting rod bearing kit operates under high-load, high-RPM conditions typical of excavation, earthmoving, and agricultural applications — including quarry loading, port material handling, and demolition site operations. It endures thermal cycling up to 180°C and radial loads exceeding 12,000 N in Kubota D1803 engines. Correct fitment prevents oil starvation, maintains hydrodynamic lubrication film integrity, and avoids catastrophic journal scoring — especially critical when machines run 12+ hours daily.

Engineering Details That Matter

The bearing shells use tri-metal construction: steel backing for structural rigidity, intermediate copper-lead layer for load distribution, and top-layer Babbitt alloy (Sn-Sb-Cu) for conformability and embeddability. Surface finish is Ra ≤ 0.2 μm to ensure optimal oil retention and reduce break-in wear. Hardness is precisely controlled at 20–25 HB to balance fatigue resistance and compatibility with hardened crankshaft journals. Dimensional tolerances are held to ±0.005 mm on inner diameter and ±0.01 mm on width — matching OEM interchange requirements without reaming or fitting. All components undergo salt-spray testing (ASTM B117, 96 hrs) for corrosion resistance in humid or coastal environments.

The Real Cost of Wrong Parts

A $15 counterfeit bearing may save upfront, but risks $2,800 in crankshaft replacement, $1,200 in labor for full engine disassembly, and $5,000+ in downtime per day. Our Kubota D1803MDI bearing replacement kit meets ISO 9001 and SAE J301 standards — same as OEM — ensuring predictable service life of 8,000–10,000 operating hours. Total cost of ownership drops significantly when factoring reliability, warranty coverage, and technical support. This is not just a part — it’s engineered risk mitigation for your fleet.

Why Customers Trust XUNPO

We only source from ISO 9001-certified factories and perform incoming material inspection on every batch. Every connecting rod bearing kit undergoes 100% dimensional verification and dynamic load simulation before shipment. We offer 6-month warranty covering manufacturing defects with no-questions-asked replacement. With 10 years’ experience shipping to 120+ countries — from Canada to Kenya, Germany to Indonesia — our technical team confirms part compatibility within 2 hours. Our Guangzhou warehouse holds over 10,000 SKUs in stock, enabling 2–5 working day dispatch for urgent repairs.

Packaging & Shipping

  • Each set is packed individually in anti-rust paper, sealed in rigid cardboard box with molded EPS foam to prevent micro-vibration damage during transit
  • In-stock items ship within 2–5 working days after payment confirmation
  • Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — all with real-time tracking
  • Full shipment visibility from Guangzhou warehouse to your door
  • MOQ is 1 piece — designed for emergency field repairs and small workshops

Get Your Connecting Rod Bearing Kit Now

Your machine isn’t generating revenue while it’s down. Send us your part number (e.g., 17311-22310), machine model (e.g., KX040-4 or L2800F), and required quantity — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk order. Stock is ready. Let’s get your equipment back online.

Frequently Asked Questions

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

A: This is an OEM-equivalent aftermarket connecting rod bearing kit, manufactured by ISO 9001-certified factories to match Kubota’s dimensional, material, and performance specifications.

Q: How do I confirm if this fits my specific machine?

A: Provide your machine model (e.g., KX121-3 or L3240HST) and engine serial prefix — our technical team verifies compatibility and replies within 2 hours.

Q: What is the warranty period?

A: 6 months from delivery date against manufacturing defects. Defective units are replaced free of charge upon return verification.

Q: What is the minimum order quantity?

A: 1 piece. We support urgent maintenance needs with no MOQ restrictions.

Q: How fast can you ship?

A: In-stock items ship within 2–5 working days. Express options (DHL/FedEx) deliver globally in 3–7 business days.

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

A: Yes — first-time customers may request one sample for physical testing and fitment validation.

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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