Home Products Diesel Engine Parts Kubota V2203 V2403 V2203-8 V2403-8 Engine Water Pump 1A021-73030 1A021-73033 1A021-73035

Diesel Engine Parts

Kubota V2203 V2403 V2203-8 V2403-8 Engine Water Pump 1A021-73030 1A021-73033 1A021-73035

MOQ: 1pcs Price: Negotiable

Part No.: 1A021-73030, 1A021-73033, 1A021-73035, 1A021-73036
Engine Model: Kubota V2203, V2403, V2203-8, V2403-8
Material: Cast Iron Impeller & Housing, Steel Shaft
Category: Diesel Engine Parts

Chat on WhatsApp

Send OEM number, quantity, destination, or photos. We will reply with quotation, lead time, and fitment notes.

Fitment check OEM number, engine model, and machine model confirmation.

Manual quote Price, MOQ, stock, lead time, and replacement options.

Export support Packing notes, mixed order support, and shipping details.

Product Details

For Kubota Tractor Engine V2203 V2403 V2203-8 V2403-8 Water Pump 1a021-73030 1a021-73033 1a021-73035 1a021-73036 17331-73030

Product Overview

This premium quality water pump is specifically engineered for Kubota V2203, V2403, V2203-8, and V2403-8 tractor and industrial diesel engines. Designed as a direct OEM replacement, it ensures optimal coolant circulation to prevent engine overheating and maintain peak performance. Sourced from ISO 9001 certified manufacturing facilities, this water pump is a cost-effective alternative to genuine Kubota parts, offering the same durability and precision fit. We ship globally, serving major markets including North America, Europe, Southeast Asia, and the Middle East.

Key Features & Benefits

OEM Standard Quality: Manufactured to meet or exceed original Kubota specifications for reliable sealing and consistent flow rate.
Durable Construction: Features a heavy-duty cast iron impeller and a precision-ground steel shaft for long service life under high-temperature conditions.
Advanced Sealing Technology: Equipped with a high-quality ceramic mechanical seal to prevent coolant leaks and resist wear.
Direct Fitment: Bolt-on replacement with no modifications required; includes pre-installed gasket for easy installation.
Cost-Effective Solution: Significantly lower cost compared to OEM parts while maintaining the same performance and longevity.

Technical Specifications

Specification	Details
Part Number	1A021-73030, 1A021-73033, 1A021-73035, 1A021-73036
Cross Reference	17331-73030
Engine Model	Kubota V2203, V2403, V2203-8, V2403-8
Material	Cast Iron Impeller & Housing, Steel Shaft
Seal Type	Ceramic Mechanical Seal
Rotation	Clockwise (as viewed from pulley)
Package Includes	1 x Water Pump, 1 x Gasket

OEM Cross-Reference

This water pump is a direct replacement for the following OEM and aftermarket part numbers:

Kubota: 1A021-73030
Kubota: 1A021-73033
Kubota: 1A021-73035
Kubota: 1A021-73036
Alternative OEM: 17331-73030

Compatibility

Engine Models:

Kubota V2203 (Naturally Aspirated & Turbocharged)
Kubota V2403 (Naturally Aspirated & Turbocharged)
Kubota V2203-8 (Industrial)
Kubota V2403-8 (Industrial)

Vehicle & Equipment Applications:

Kubota M Series Tractors (M4800, M5400, M6800)
Kubota L Series Tractors (L4310, L4610)
Kubota RTV900 Utility Vehicles
Kubota KX Series Excavators (KX91, KX121)
Industrial generators, forklifts, and mini excavators using Kubota V2203/V2403 engines

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to B2B buyers worldwide. Our logistics network covers:

North America: Regular shipments to Los Angeles, Houston, Chicago, and Toronto.
Europe: Stock available in Rotterdam, Hamburg, and Antwerp for rapid EU distribution.
Asia-Pacific: Direct shipping from our warehouse in Shanghai to Singapore, Sydney, Tokyo, and Dubai.
Middle East & Africa: Frequent deliveries to Jebel Ali (Dubai), Jeddah, and Mombasa.
South America: Service to Santos, Buenos Aires, and Valparaiso.

We support bulk orders with FOB, CIF, and EXW terms. All shipments comply with international trade regulations, and we provide full documentation (commercial invoice, packing list, bill of lading).

Quality Assurance

Certifications: ISO 9001:2015 certified manufacturing process.
Testing: 100% pressure tested for leaks and flow rate before packaging. Each unit undergoes a 2-hour run-in test to ensure bearing and seal integrity.
Warranty: 12 months from the date of purchase against manufacturing defects (does not cover improper installation or misuse).
Material Guarantee: Cast iron components are treated with anti-corrosion coating for extended life in harsh environments.

FAQ

Q1: Will this water pump fit my Kubota V2403 engine with a turbocharger?
Yes, this water pump is compatible with both naturally aspirated and turbocharged versions of the Kubota V2403 and V2203 engines. The mounting flange and impeller design are identical across all variants. Always verify your old part number matches one of the listed cross-references before ordering.

Q2: What is the recommended installation procedure to avoid premature failure?
First, ensure the engine is cool and the coolant is drained. Clean the mating surface on the engine block thoroughly to remove old gasket material. Apply a thin layer of gasket sealant to the new gasket (optional, but recommended for high-pressure systems). Torque the mounting bolts to 18-22 ft-lbs (24-30 Nm) in a crisscross pattern. After installation, refill coolant and run the engine to check for leaks. Do not over-tighten bolts as this can warp the housing.

Q3: How do I know if my water pump needs replacement?
Common signs include: 1) Coolant leaking from the weep hole on the pump housing. 2) Unusual noise (squealing or grinding) from the pump bearing. 3) Engine overheating despite proper coolant levels. 4) Visible wobble in the water pump pulley. If you observe any of these symptoms, replace the pump immediately to prevent engine damage.