Cylinder Head for Kubota D1305 Engine – Direct Replacement for B7610, RTV1100, ZD28

Product Specifications

Compatible Models

Tired of Cylinder Head Failures on Your Kubota D1305 Engine?

Every unplanned downtime on a Kubota B7610 tractor or RTV1100 utility vehicle costs hundreds to thousands in lost productivity — especially during peak mowing or fieldwork seasons. Counterfeit or poorly cast cylinder heads crack under thermal cycling, leading to coolant leaks, compression loss, and repeated engine rebuilds. OEM parts for the D1305-3B take 3–4 weeks and cost up to 45% more than reliable alternatives.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This Kubota D1305 cylinder head is manufactured in ISO 9001-certified foundries using precision sand-casting and post-machining verification. With 10 years’ experience supplying Kubota engine components globally, XUNPO ensures every unit meets original dimensional tolerances and surface finish specs — critical for proper gasket sealing and valve train alignment during excavator loader or compact tractor engine overhauls.

Where This Part Works

This cylinder head operates under high thermal stress and combustion pressure in Kubota-powered applications including municipal mowers (ZD28, ZD331), agricultural tractors (B7610, B2620), and utility vehicles (RTV1100) used across construction sites, vineyards, ports, and public works departments. In stop-start duty cycles and extended load operation, correct metallurgy and heat treatment prevent warping and maintain valve seat integrity — making it essential for reliability in demanding environments.

Engineering Details That Matter

The casting uses ASTM A48 Class 35 gray iron with controlled carbon/silicon ratio for optimal thermal conductivity and microstructural uniformity. All critical sealing surfaces are CNC-machined to ±0.02 mm flatness tolerance, ensuring leak-free interface with the engine block. Valve guide bores are reamed to H7 tolerance and finished with honing for precise valve stem clearance (0.025–0.045 mm). Combustion chambers are profiled to match OEM compression ratio (22.5:1), while coolant passages are flow-tested at 1.2 bar to prevent localized hot spots.

The Real Cost of Wrong Parts

A substandard cylinder head may save $20 upfront but risks catastrophic failure within 200 operating hours — triggering full engine disassembly, labor charges ($400+), replacement gaskets, and 3–5 days of machine idleness. Industry data shows non-OEM-equivalent parts increase repeat repair frequency by 2.3×. By contrast, this Kubota D1305-3B cylinder head delivers TCO reduction through verified durability, backed by ISO-compliant production and OEM-spec performance testing — not just visual similarity.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-rust 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 payment confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted based on destination and urgency
• Real-time tracking number provided upon dispatch, updated until final delivery
• MOQ is 1 piece — designed for urgent field repairs and small fleet maintenance

Get Your Kubota D1305 Cylinder Head Now

Your equipment isn’t generating revenue while it’s down. Send us the part number, exact machine model (e.g., Kubota RTV1100 or ZD28), and required quantity — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before placing bulk orders. The sooner you act, the faster your engine is back online.

Frequently Asked Questions