Lubrication & Cooling Systems
Lubrication & Cooling Systems
Wear Item Water Pump Compatible with CASE IH Tractors
<p><strong>1273085C91, 1962912C1 Water Pump</strong> — replacement for CASE IH 234, 235, 244, 245, 254, 255, 265, 275, 1120, 1130, 1140 tractors, featuring A380 high-silicon aluminum impeller and double-lip nitrile seals rated to 120°C.</p> <ul> <li>Replace at the first sign of bearing play or coolant seepage rather than after an overheat event; bundle with thermostat and drive belt for a complete cooling system refresh</li> <li>EPDM gasket included, housing tolerance held to ±0.05 mm for reliable sealing across service intervals</li> <li>Replacement interval guidance and fleet stocking recommendations shipped with every order</li> </ul>
Lead Time
2-5 Days
Warranty
3-12 Months
Min. Order
1 Piece
Ships To
120+ Countries
Request a Quote
Response within 24 hours
Product Details
Fleet-Level Cooling Support — replacement planning for aging CASE IH tractors backed by verified aftermarket supply.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 1273085C91, 1962912C1 |
| Product Type | Water Pump |
| Cross-Reference | 1273085C91, 1962912C1 (for identification purposes) |
| Machine Fitment | CASE IH 234, 235, 244, 245, 254, 255, 265, 275, 1120, 1130, 1140 |
| Impeller Material | High-silicon aluminum alloy (A380) |
| Seal Configuration | Double-lip nitrile rubber, rated to 120°C |
| Housing Tolerance | ±0.05 mm on mounting surfaces and bore diameters |
| Surface Treatment | Phosphate conversion coating on machined surfaces |
| Gasket Material | EPDM rubber (1.2 MPa compression set resistance) |
| Gasket Included | Yes |
| Condition | New Aftermarket |
| Standard | ISO 9001 |
Application Suitability
| Service Interval | What to Check |
|---|---|
| Pre-season maintenance | Bearing play, seal weep hole, impeller condition |
| 4,000–6,000 operating hours | Coolant flow rate, belt tension, thermostat function |
| Major engine overhaul | Full cooling system flush, hose integrity, radiator cap pressure |
| Post-overheat incident | Cylinder head flatness, head gasket condition, block integrity |
Why Planned Cooling System Updates Matter More Than Reactive Repairs
Waiting until a water pump fails in the field turns a planned one-hour swap into a cylinder head repair and days of lost productivity. Scheduling replacement based on operating hours or seasonal turnaround prevents secondary damage that extends far beyond the pump itself.
In high-intensity agricultural operations, a failed seal does not just leak coolant externally. It allows coolant to migrate past the bearing assembly into the oil gallery, contaminating lubrication across the entire engine. The resulting damage typically requires complete engine teardown rather than a simple component exchange [NEED_CITE: cooling system failure modes in agricultural diesel engines].
Fleet operators running multiple machines across the 234 through 1140 range face compounded risk when pumps are allowed to run to failure. One seized pump during harvest can sideline a tractor precisely when replacement equipment is unavailable and rental costs peak. A water pump service part for CASE IH tractors should enter inventory based on fleet size and service cadence, not after the first failure occurs.

Positioning the Water Pump in the Machine Service Life
The water pump occupies a critical position in the cooling circuit, moving coolant from the radiator through the engine block at a rate determined by impeller design and engine speed. Unlike filters or belts, it is not inspected during routine service intervals. Most operators only examine it when symptoms appear, by which point internal wear has already progressed significantly.
For machines in the CASE IH 234 through 1140 series, the pump typically reaches measurable bearing play after several thousand hours of operation, depending on coolant condition and ambient operating temperatures. Fleet maintenance programs that track hours across mixed-age equipment can identify which machines approach the replacement window and order components before the busy season begins. A water pump service part for CASE IH tractors ordered during planned downtime avoids the premium urgency of field-breakdown procurement.
Wear Progression and the Decision Point for Replacement
Bearing wear manifests first as subtle shaft play, detectable by hand when the drive belt is removed. As wear progresses, the shaft wobble compromises the seal interface, and coolant begins weeping from the vent hole. This is the definitive signal that replacement should occur within weeks, not months [NEED_CITE: mechanical seal failure indicators in centrifugal pumps].
Once seal failure begins, coolant loss accelerates. The operator notices temperature gauge elevation under load, particularly during high-ambient conditions like midday tillage or hillside harvesting. Ignoring these signs leads to head gasket failure as localized hot spots develop in the cylinder head. Replacing the pump at first seal weep, along with the thermostat and drive belt as a matched set, keeps the machine operational through the next full service cycle.
Material and Tolerance Specifications That Affect Service Life
The high-silicon aluminum alloy impeller resists cavitation erosion, which becomes a concern when coolant chemistry degrades over extended drain intervals. Cavitation pitting reduces pumping efficiency gradually, raising operating temperature under load without triggering an immediate alarm. The phosphate conversion coating on machined surfaces provides corrosion resistance during storage and in the early service period before protective coolant additives fully condition internal passages.
The double-lip nitrile seal rated to 120°C handles the sustained temperatures encountered in heavy draft work. Housing tolerance held to ±0.05 mm ensures proper alignment with the engine block mounting face, preventing the uneven loading that accelerates bearing wear. The included EPDM gasket with 1.2 MPa compression set resistance maintains sealing force through thermal cycling, preventing external leaks at the mounting flange [NEED_CITE: elastomer compression set standards for engine cooling applications].

The Cumulative Cost of Reactive Procurement
Machines that receive component replacement only after failure accumulate secondary damage that multiplies repair scope. A pump that seizes without warning can damage the drive belt, stress the fan hub, and overheat the engine to the point of head gasket failure. The labor cost of a planned one-component swap becomes a multi-day teardown when reactive procurement delays the repair while sourcing emergency stock.
Fleet operators who treat the cooling system as a collection of unrelated consumables rather than an integrated circuit face repeated partial repairs. Replacing the pump but reusing an aged thermostat or degraded hoses invites the next failure to occur in the adjacent component. Planning the water pump service part for CASE IH tractors as part of a system-level refresh prevents the staggered downtime that disrupts seasonal operations [NEED_CITE: total cost of ownership models for agricultural fleet maintenance].
What This Supply Arrangement Provides
Production on selected pump lines and qualified sourced supply operate under a single account and single warranty structure. This means a water pump ordered alongside thermostats, gaskets, and drive belts ships as one consignment with one accountability point.
The eight-category range covers cooling, lubrication, engine internal, and electrical components under one supplier relationship. A single-piece minimum allows a workshop to order one pump for fitment confirmation before committing to fleet-wide quantity. Part identification proceeds from number, machine model, or photograph of the old unit, accommodating machines with worn or painted-over nameplates. Cross-reference verification covers superseded and alternate numbers across the 234 through 1140 range, and sample supply allows fitment confirmation before bulk commitment. Technical support remains available for compatibility and grade confirmation across the product range.
Documentation & Verification
- Commercial invoice and packing list referencing both part numbers and machine fitment range
- Part compatibility and cross-reference sheet marking 1273085C91 and 1962912C1 as reference only
- Quality inspection record covering housing tolerance, impeller balance, and seal integrity
- Warranty terms specifying coverage period against manufacturing defects
- Packing photographs showing gasket protection and impeller cover before crate closure
- HS code and customs documentation support for international agricultural machinery parts shipment
Service Interval & Stocking Guidance
- Replace water pump during major service at manufacturer-recommended intervals or at first seal weep indication
- Inspect bearing play by hand-rotation with belt removed during each pre-season maintenance event
- Stock one pump per five machines in active fleet to cover unplanned failures during critical operational periods
- Store pumps in original packaging with desiccant to prevent bearing corrosion during shelf life
- Record operating hours at pump replacement to build historical data for future interval refinement
- Include thermostat and drive belt in the same replacement event to avoid partial system refresh
Request a Quotation Based on Fleet Requirements
Provide machine model and approximate operating hours for each unit in the fleet to receive replacement interval recommendations and suggested stock quantities. For mixed-age fleets, include serial numbers where available to confirm fitment across variant differences within the model range. Specify whether the requirement is for immediate planned maintenance or forward stocking against the next service window.
Frequently Asked Questions
Q: How often should a tractor water pump be replaced under heavy agricultural use?
A: Replacement intervals depend on operating hours, coolant condition, and ambient temperature exposure. In high-intensity applications like sugarcane or cotton farming, inspection during pre-season maintenance and replacement at the first sign of bearing play or seal weep prevents field failures. Planned replacement as part of a cooling system refresh, including thermostat and belt, typically aligns with major service intervals rather than running to failure.
Q: What other cooling system components should be replaced simultaneously with the pump?
A: The thermostat, drive belt, and coolant hoses should be evaluated during pump replacement. Thermostat function degrades gradually and is difficult to test in situ. Reusing aged hoses and belts invites the next failure to occur in an adjacent component, negating the labor investment of the pump swap. A system-level approach keeps the machine through the next full service cycle.
Q: How do I plan spares for a mixed-age fleet of CASE IH tractors?
A: Track operating hours across the fleet and identify machines approaching typical replacement thresholds based on historical data. Stock quantity should align with fleet size and the interval between major service events. Machines in the 234 through 1140 range share many cooling system components, allowing consolidated inventory rather than unique stock for each model variant.
Q: Are water pumps still available for older CASE IH models past dealer support?
A: Aftermarket supply continues for models where original equipment channels have thinned or discontinued support. Cross-reference verification covers superseded part numbers across the compatible range. Providing machine model and serial information allows confirmation of fitment before order placement, ensuring the component matches the specific variant in service.
Q: What are the early warning signs that a water pump is nearing end of life?
A: Bearing play detectable by hand rotation with the belt removed indicates internal wear progression. Coolant seepage from the weep hole signals seal compromise. Rising operating temperature under heavy load, particularly in high-ambient conditions, suggests reduced pumping efficiency from impeller erosion or partial blockage. Any of these signs warrants scheduled replacement before field failure occurs [NEED_CITE: preventive maintenance indicators for engine cooling systems].
Compatible Brands
Our parts are engineered to meet or exceed OEM specifications. Please provide your machine model number and serial number when inquiring to confirm exact compatibility.
How to Confirm Compatibility
-
1
Find Your Machine Model
Locate the model plate on your machine, typically near the cab or engine compartment.
-
2
Note the Part Number
Check your parts manual or existing part for the OEM part number.
-
3
Contact Our Team
Our technical team verifies compatibility within 2 hours. Send us the details via the inquiry form or WhatsApp.
Shipping Information
Express Shipping
DHL, FedEx, UPS -- 3-7 business days worldwide
Sea Freight
Cost-effective option for bulk orders -- 15-35 days
Real-Time Tracking
Tracking number provided after shipment. 24/7 support available.
Warranty Policy
All parts come with manufacturer warranty. Duration varies by product category.
- Manufacturing defects covered in full
- Free replacement or full refund for defective parts
- Post-delivery technical support included
- Sample testing available for first-time buyers
ISO Certified Quality
All parts sourced from ISO-certified factories with strict QC processes and material traceability.
Competitive Pricing
Save 30-50% vs OEM prices without compromising quality. Transparent pricing with no hidden fees.
Fast 2-5 Day Shipping
Large Guangzhou warehouse with 10,000+ SKUs in stock. Most orders ship within 2-5 business days.
10+ Years Experience
20+ professionals with deep technical knowledge serving 1,000+ clients across 120+ countries.
24/7 Technical Support
Dedicated support team available around the clock. Part verification within 2 hours of inquiry.
Global Reach
Flexible shipping solutions including express and sea freight to 120+ countries with real-time tracking.
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