Cart
POPULAR CATEGORY
ADD TO CART
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
Product Number: 19106003
The Highway Automotive 19106003 is a direct-fit expansion tank supplied complete with cap, designed for coolant system management across a range of Caterpillar heavy plant and construction machinery. As a critical component of the engine cooling circuit, the expansion tank accommodates thermal volume changes in the coolant, maintaining system pressure and protecting against overheating during demanding operational cycles. Supplied as a complete assembly with cap included, the 19106003 is ready to install without the need for additional components. This makes it a practical, workshop-ready solution for planned maintenance or emergency replacement in the field. The 19106003 is confirmed to fit 20 Caterpillar applications, covering a broad spread of excavator and plant models. These include the Caterpillar 320C (engine 3066 across multiple build variants), the 322C (engines 3126 and 3126B), the 325C (engine 3126B), the 330C (engine C-9), the 330-A series, and the 323D (engine C6.4). Buyers should verify the engine variant against their machine's build plate before ordering to ensure correct selection. In the box: one Highway Automotive expansion tank with cap. No OE cross-reference data is published for this part number. Fitment across all 20 listed applications is backed by the PartsForMachines Fit Guarantee.
| Notes | With cap |
|---|
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £19.95
Delivery Estimate: 7 to 10 working days
Save Extra With 1 Offer
Compare With Similar Items
Compare with Similar products
|
|||||||||||||||
| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 19157003 | 15031003 | 19011001 | 19011002 | 19011003 | 19011004 | 19011005 | 19011006 | 19011007 | 19011009 | 19011010 | 19021001 | 19021002 | 19021003 | 19021005 |
| cap_configuration | With cap | ||||||||||||||
| gross_weight_kg | 2.3 | ||||||||||||||
A. The 19106003 fits 20 Caterpillar applications, including the 320C (engine 3066), 322C (engines 3126 and 3126B), 325C (engine 3126B), 330C (engine C-9), the 330-A series, and the 323D (engine C6.4). To confirm fitment against your specific machine serial number and build variant, use the selection widget on the product listing or search our cross-referenced catalogue by machine model. Every fitment shown is backed by our Fit Guarantee.
A. The 19106003 covers several engine variants across the Caterpillar range — for example, the 320C is listed across multiple build codes all fitted with the 3066 engine, while the 322C covers both the 3126 and 3126B, and the 330C covers C-9-engined variants. Always cross-check your machine's engine code against the full application list using the selection widget, or ask Simon if your specific variant is not immediately clear.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
A. Yes. Every vehicle and OE cross-reference shown for this part is checked against manufacturer data and backed by our Fit Guarantee. If it is not right, our Fit Guarantee or hassle-free returns have you covered.
By sharing your email, you agree to our privacy policy & terms of service
Question about this product? Click here
