Lubrication & Cooling Systems
ISO Certified Quality Assured
2-5 Day Ship In-stock items
3-12M Warranty MOQ 1 piece

Water Pump 1E051-73036 with Gasket for Kubota D722/D902 – Direct OEM Replacement

<p>Stop overheating delays and get your Kubota back in service fast — this <strong>Kubota water pump</strong> delivers OEM-equivalent cooling performance without the 3–4 week wait or 40% markup. Built to exact D722/D902 engine tolerances, it features the critical internal impeller vane geometry that prevents cavitation-induced flow drop at high RPM — a common failure point in generic replacements.</p> <ul> <li>Fits BX1880, RTV-X900G, ZD1011, GR2120-2, SCL1000 and more — verified against Kubota’s latest service bulletins</li> <li>Includes genuine-spec gasket 16871-73430 (not just “compatible”) for leak-free sealing on aged engine blocks</li> <li>Pre-tested for shaft runout ≤0.05mm — eliminates premature bearing wear seen in off-spec units</li> <li>Ships same-day from our Guangzhou warehouse — no minimum order, no waiting for production batches</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

Product Specifications

ParameterDetails
Part NameWater Pump with Gasket
Part Number (OEM Reference)1E051-73036 (water pump), 16871-73430 (gasket)
Brand CompatibilityKubota
Machine Model FitmentKubota BX1880, BX1880-1, GR2120-2, GR2120B-2, SCL1000, RTV-X900G, RTV-X900R, RTV-X900W, ZD1011, ZD1011-3, ZD1021, ZD1021-3, ZD1011-AU
Engine FitmentKubota D722, D902
ConditionNew Aftermarket
Warranty6 months against manufacturing defects
PackagingOriginal retail box with anti-static foam and sealed polybag

Compatible Models

BrandApplicable Models
KubotaBX1880, BX1880-1, GR2120-2, GR2120B-2, SCL1000, RTV-X900G, RTV-X900R, RTV-X900W, ZD1011, ZD1011-3, ZD1021, ZD1021-3, ZD1011-AU

Tired of Overheating Kubota Engines? Get the Right Water Pump 1E051-73036 for Your D722/D902

Every hour a Kubota utility vehicle or tractor sits idle due to coolant system failure costs operators $280–$650 in lost productivity and labor. Counterfeit water pumps fail within 200 operating hours — causing repeat shutdowns, radiator damage, and unplanned downtime. OEM replacements often take 18–25 days to arrive from Japan or the U.S., halting mowing, hauling, or site prep schedules.

OEM-Equivalent Quality, Ready to Ship

This Kubota water pump 1E051-73036 is manufactured in an ISO 9001-certified factory and undergoes full performance testing before shipment: flow rate verification at 1,800 RPM, pressure seal validation at 1.2 bar, and thermal cycling between -20°C and +105°C. With 10 years of global export experience and 10,000+ SKUs in stock, Guangzhou XUNPO supplies verified cooling components for Kubota D722 and D902 engines used in compact tractors, UTVs, and zero-turn mowers — no guesswork, no delays.

Where This Part Works

This Kubota D902 cooling pump operates under continuous duty in agricultural, municipal, and landscape maintenance applications — including daily mowing on commercial lawns, material transport across construction sites, and equipment deployment in high-humidity coastal ports. It maintains stable coolant circulation at engine speeds up to 3,000 RPM and ambient temperatures exceeding 40°C. Choosing the correct water pump with gasket for Kubota BX1880 ensures consistent thermal regulation, preventing head gasket blowouts and cylinder liner cavitation.

Engineering Details That Matter

The impeller is precision-cast from high-silicon aluminum alloy (A380), delivering 12% higher corrosion resistance than standard ADC12 in ethylene-glycol coolant environments. The shaft seal uses dual ceramic/metal face design rated for 10,000+ hours of operation — critical for RTV-X900G models running 8–12 hours daily. Dimensional tolerances are held to ±0.05 mm on all mounting surfaces and bore IDs, ensuring drop-in fit without machining or shimming. The housing undergoes T6 heat treatment (solutionized at 535°C, aged at 175°C) for optimal tensile strength (≥310 MPa) and fatigue resistance during vibration-heavy utility vehicle use.

The Real Cost of Wrong Parts

A $22 counterfeit pump may save $15 upfront but typically fails before 150 hours — triggering $320 in labor to replace it again, $180 in coolant flush and refill, and $1,200+ in downtime for a single-day landscaping contract. In contrast, this Kubota water pump 1E051-73036 meets ISO 1940-1 G2.5 balance standards and OEM torque specs (22 N·m for pulley bolts), reducing long-term total cost of ownership by 37% over 3 years. Its integrated gasket 16871-73430 eliminates mismatched sealing materials that cause slow coolant weep — a leading cause of early bearing failure.

Why Customers Trust XUNPO

We partner exclusively with ISO 9001-certified factories and inspect every incoming batch of raw castings and machined housings. Each water pump undergoes 100% functional testing: flow volume ≥28 L/min at 2,000 RPM, seal integrity verified at 1.2 bar for 5 minutes, and vibration analysis per ISO 10816-3. All units carry a 6-month warranty covering manufacturing defects — no restocking fees, no return shipping charges. Our team has supported Kubota fleet operators in 32 countries since 2016. With 20+ technical staff trained in Kubota service manuals, we verify part compatibility within 2 hours. Our Guangzhou warehouse holds 1,200+ units of this water pump 1E051-73036 in stock — ready for same-day dispatch.

Packaging & Shipping

  • Individually boxed in rigid cardboard with molded EPS foam cradle and moisture-barrier polybag
  • In-stock items shipped within 2–5 working days after payment confirmation
  • Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted per destination
  • Real-time tracking number provided upon dispatch, with proactive delay alerts
  • MOQ: 1 piece — supports urgent field repairs and small-fleet maintenance

Get Your Kubota Water Pump Now

Your Kubota D722 or D902 engine shouldn’t wait weeks for cooling system reliability. Send us your part number (1E051-73036), machine model (e.g., RTV-X900G), 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. Every day delayed is another day your equipment sits idle.

Frequently Asked Questions

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

A: This is an OEM-equivalent aftermarket water pump, produced in an ISO 9001-certified factory to match Kubota’s dimensional, material, and performance specifications — not sourced from Kubota.

Q: How do I confirm if 1E051-73036 fits my machine?

A: Provide your full machine model (e.g., “Kubota RTV-X900G”) and serial prefix (if available) — our technical team verifies compatibility within 2 hours.

Q: What is the warranty period?

A: 6 months from date of delivery, covering defects in materials and workmanship. Replacement or refund issued promptly upon validation.

Q: What is the minimum order quantity?

A: 1 piece — no exceptions. Ideal for emergency repairs, pilot testing, or small workshops.

Q: How fast can I receive this water pump after ordering?

A: In-stock units ship within 2–5 working days via your chosen method — express delivery reaches most North American and European destinations in 3–6 business days.

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

A: Yes. First-time customers may request one sample unit at production cost (shipping prepaid) for physical inspection and fitment verification.

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 Lubrication & Cooling Systems
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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<p><strong>Water Pump 1E051-73036 with Gasket 16871-73430, Aluminum Housing, Dual-Lip NBR Shaft Seal</strong> — system-matched cooling components for Kubota D722 and D902 engine rebuilds.</p> <ul> <li>Supplied as a verified set with MLS gasket to match the thermal expansion differential between cast iron block and aluminum housing, addressing incomplete overhaul kits that cause repeat failures</li> <li>Dual-lip NBR seal rated for continuous 120°C operation, compatible with standard ethylene-glycol coolant formulations</li> <li>Fits Kubota BX1880, GR2120, RTV-X900, ZD1011 and ZD1021 series machines</li> </ul> <p>Matched pump and gasket ship together with dimensional tolerance verified to ±0.05 mm for your specific engine build variant.</p>

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