1A051-03040 Cylinder-Head for Kubota Engines D1502 D1503 D170 and Excavators KX91-3 U35-3
The 1A051-03040 Cylinder Head is a high-precision, direct-fit engine core component for Kubota D1502, D1503, D170 diesel engines and Bobcat/Kubota mini excavators KX91-3, U35-3. It encloses the combustion chamber, houses valves, valve seats, and guides, ensuring efficient combustion, sealing, and heat dissipation in compact construction, landscaping, and agricultural machinery.
Key Features
· OEM-Compliant Casting: High-grade alloy cast iron construction with precise valve seat inserts and guides for direct replacement, no modification required for Kubota engines/ excavators.
· Leak-Proof Sealing: Precision-machined deck surface and valve guides ensure tight gasket sealing, preventing coolant, oil, and combustion gas leaks.
· Enhanced Heat Dissipation: Optimized water jacket design and thermal conductivity for consistent engine temperature, reducing overheating risks.
· Durable Valve Train: Pre-installed, heat-resistant valves and springs for reliable operation under extreme temperatures (-20°C to 120°C).
Compatibility: This cylinder head is designed for use in various Kubota engines and machinery, including:
· Engines: D1502, D1503, D1703, and D1803 diesel engines.
· Excavators: Kubota KX91-3 and U35-3 models.
Thank you for choosing SPARKLING MACHINERY for premium Kubota engine parts. The 1A051-03040 Cylinder Head ensures reliable combustion, sealing, and heat management for your Kubota D1502/D1503/D170 engines and KX91-3/U35-3 excavators, minimizing downtime and maximizing fleet productivity.
Our cylinder heads meet Kubota’s strict performance standards, backed by a 12-month warranty and professional technical support for installation and troubleshooting.
The SPARKLING MACHINERY NEW 1A051-03040 Cylinder-Head Photo:
Why Choose the SPARKLING 1A051-03040 Cylinder Head?
- Perfect Fit: Exact OEM dimensions for plug-and-play installation, cutting labor costs and machine downtime.
- Reliable Combustion: Precision valve timing and sealing maintain optimal compression for consistent power output.
- Long Service Life: High-strength alloy cast iron and heat-treated valve components resist wear, corrosion, and thermal fatigue for 3000+ hours of use.
- Certified Quality: ISO 9001 certified production, 100% pressure-tested to ensure leak-free performance.
- Expert Support: Our Kubota engine specialists provide pre-purchase compatibility checks, on-site installation guidance, and after-sales maintenance service.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation



🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879