Cylinder Components
Engine V2403 V2403-M Complete Cylinder Head With Valves and Springs for Kubota
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Cylinder Components Kubota cylinder head Kubota engine parts Kubota excavator cylinder head

Engine V2403 V2403-M Complete Cylinder Head With Valves and Springs for Kubota

Get your Kubota equipment back to peak performance quickly with our Kubota V2403 complete cylinder head, engineered to eliminate costly downtime from valve or head failures. This ready-to-install assembly includes precision-machined valves and springs, fitting Kubota excavators (KX121-2/3, KX161-2/3), generators (KJ-S150V, SQ-1200), and tractors (L4200, L4740, M5140) with OEM-equivalent quality.

  • Direct replacement for part numbers 1G855-03042B, 1G916-03040B, and 10+ critical references
  • Pre-assembled with hardened valve seats and pressure-tested components for reliable long-term operation
  • Supports urgent repairs with same-day shipping from our Guangzhou warehouse—no more waiting for OEM lead times

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

Product Specifications

ParameterDetails
Part NameEngine V2403 Complete Cylinder Head with Valves
Replacement Part Numbers1G855-03042B, 1G916-03040B, 1G780-03043B, 1G896-03040B, 1G928-03040B, 1G851-03040B, 1G851-03042B, 1G851-03043B, 1J854-03040B, 1J860-03040B
Brand CompatibilityKubota
ConditionNew Aftermarket
Warranty3-12 months against manufacturing defects

Compatible Models

BrandApplicable Models
Kubota GeneratorKJ-S150V-USA, KJ-S150VX-USA, KJ-T210V-USA, KJ-T210VX-USA, SQ-1200-USA, SQ-3250-USA-SW
Kubota ExcavatorKX121-2, KX121-2(S SERIES), KX121-3, KX121-3S, KX121-3ST, KX161-2, KX161-2(S SERIES), KX161-3, KX161-3S, KX161-3ST, U45S, U45ST
Kubota TractorL4200DT, L4200DT-C, L4200DT-GST, L4200DT-GST-C, L4200F, L4200F-C, L4200F-GST, L4240DT, L4240DT-3, L4240GST, L4240GST-3, L4240HST, L4240HST-3, L4240HSTC, L4240HSTC-3, L4300DT, L4300F, L4310DT, L4310DT-GST-C, L4310F, L4310GST, L4310HST, L4310HST-C, L4330DT, L4330GST, L4330HST(C), L4400DT, L4400F, L4400H, L45, L4600DT, L4600F, L4600H, L4610DT-GST, L4610DT-HST, L4610DT-HST-C, L4630DT, L4630GST(C), L4630HST, L4740GST, L4740GST-3, L4740HST, L4740HST-3, L4740HSTC, L4740HSTC-3, L48, L5030GST, L5030HST(C), L5040GST, L5040GST-3, L5240HST, L5240HST-3, L5240HSTC, L5240HSTC-3, L5740HST, L5740HST-3, L5740HSTC, L5740HSTC-3, M4800SUD-F, M4800SU-F, M5140DT, M5140DTC, M5140F, M5140FC, M5140HD, M5140HDC, M5640SU, M5640SUD, M5640SUD-1, M59, MX4700DT, MX4700F, MX4700H, MX5000DT, MX5000F, MX5000SU, MX5100DT, MX5100F, MX5100H
Kubota Wheel LoaderR510 NEW TYPE, R510B NEW TYPE, R520, R520S

Struggling with Engine Downtime? Get the Right Kubota V2403 Cylinder Head for Your Equipment

Every hour your Kubota excavator, generator, or tractor sits idle costs money—whether it's missed project deadlines, emergency rental fees, or unplanned repair bills. Many equipment owners face the frustration of waiting 2-4 weeks for OEM cylinder heads that cost 30-50% more than aftermarket alternatives. Worse, counterfeit parts with 1.5x shorter lifespans often lead to repeat failures and even bigger losses.

OEM-Equivalent Quality, Available for Immediate Shipment

Our Kubota V2403 cylinder head solves these problems with a ready-to-install solution that matches OEM specifications at a competitive price. As a professional supplier with 10 years of global export experience, we maintain a large inventory of 10,000+ commonly used parts in our Guangzhou warehouse. This means your cylinder head can ship within 2-5 working days, getting your equipment back to work fast. Each unit comes pre-assembled with valves and springs, ensuring a hassle-free repair process for your Kubota engine.

Where This Part Works Hard

This Kubota V2403 cylinder head is built to perform in the toughest environments—from construction sites and mining operations to agricultural fields and port logistics. It handles the high compression and thermal stress of Kubota's V2403 diesel engines, which power everything from compact excavators to industrial generators. Whether your equipment is digging trenches, generating power, or hauling materials, this cylinder head maintains the engine's performance and reliability under heavy load.

Engineering Details That Ensure Longevity

Our cylinder head is manufactured to precise tolerances using high-grade materials, ensuring a perfect fit and optimal engine performance. The valve seats and guides are machined to exact specifications, preventing oil leaks and maintaining proper compression. Each unit undergoes rigorous pre-shipment testing to verify pressure resistance and valve operation—critical factors in preventing premature engine wear. The inclusion of valves and springs in the assembly eliminates the need for separate component sourcing, reducing installation time and potential compatibility issues.

The Hidden Cost of Choosing the Wrong Cylinder Head

Opting for a cheap, untested cylinder head might save money upfront, but the long-term costs are steep. A single engine failure due to a defective head can result in thousands of dollars in secondary damage to pistons, crankshafts, and turbochargers. Our ISO-certified manufacturing process ensures each cylinder head meets OEM-equivalent quality standards, minimizing the risk of unexpected breakdowns. With a 3-12 month warranty against manufacturing defects, you can trust that this part will deliver reliable performance long after installation.

Why Customers Trust XUNPO for Kubota Parts

We partner exclusively with ISO-certified factories and enforce strict quality control, including incoming material inspection and pre-shipment performance testing. Our 20+ seasoned industry professionals provide accurate part verification within 2 hours, ensuring you get the right component for your Kubota model. With 10 years of experience serving 120+ countries, we understand the critical nature of timely parts delivery—our standard MOQ of 1 piece supports urgent maintenance needs, and we offer flexible shipping options including express, air freight, and sea freight.

Packaging & Shipping</

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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Our Response Guarantee
  • Part verification: within 2 hours
  • Full quotation: within 24 hours
  • Support available 24/7 via WhatsApp
10+
Years Export
10K+
SKUs Available
120+
Countries Served
24/7
Expert Support