Water Pump 2W1223 for Caterpillar 3204 Engine - Replaces 4N0660 1W2929 1W6446
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Application | Fitment Notes |
|---|---|
| Caterpillar 3204 engine | Confirmed Cat application. |
| Cat 931/935/943/953 and selected 910/916/926 machines | Factory applications listed for 2W-1223; verify serial. |
Product Overview
Caterpillar lists 2W1223 as a coolant water pump for 3204 engines and multiple machines powered by that engine. It should not be broadly labeled as a 3208 pump without verifying the exact pump because Cat uses different water-pump families on 3208 applications.
Key Features & Performance
- Cat reference 2W-1223
- Factory-fit 3204 engine water pump
- Used across loaders, dozers, skidder and industrial 3204 applications
- Cross-reference to earlier pump numbers where applicable
Common Reasons for Replacement
- Coolant leaking from pump seal
- Pump bearing is noisy or has shaft play
- Engine overheats because coolant circulation is poor
OE / Reference Numbers
- 2W-1223
- 2W1223
- 4N0660
- 1W2929
- 1W6446
- 0R-1242 reman reference
Frequently Asked Questions
How do I confirm fitment? Confirm 2W-1223 or a valid superseded/cross-reference number in the Cat parts catalog. Do not assume 3208 fitment from the old title alone.
Is this an OEM part? This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.