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SKU:
NLT2T00810
Ships for free in 2–4 business days.
Oil Cooler Thermostat 4952629 3680453 for Cummins Engine ISX QSX
$36.99
In Stock
$36.99
Sale price
$36.99
Regular price
This is an replacement oil-cooler thermostat for Compatible Engines: Cummins ISX, Cummins QSX; replaces 4952629, 3680453.
Estimated delivery between
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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.
Compatible equipment / model
| Compatible Engines: Cummins ISX, Cummins QSX |
Product Overview
Oil that stays too cold or runs too hot can point to a thermostat that is stuck open or closed after cooler flow and engine temperature are checked.
This replacement thermostat restores controlled oil routing through the cooler on compatible Cummins ISX/QSX applications. Match 4952629 / 3680453 before installation.
Key Features & Performance
- Replacement oil-cooler thermostat for the listed application
- Intended to restore the original function when diagnosis or inspection confirms the existing part is worn, damaged or failed
- Match the original part number, mounting and connections before installation
- Replaces or cross-references 4952629, 3680453
Replaces / Cross-References
- 4952629
- 3680453
What Is Included
1 replacement component for this SKU unless the product images or option selection state otherwise.
Fitment Notes
Match the original part number, machine or vehicle model, mounting points, connector or hose/fitting style, and any serial-number restrictions before ordering. When a manufacturer uses multiple revisions within the same model family, the equipment serial number and original component should be the final fitment check.
Frequently Asked Questions
Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE and interchange numbers are provided for identification and fitment reference.
How should I verify fitment before ordering?
Compare the original part number, machine or vehicle model, mounting arrangement and electrical, fuel, coolant or hydraulic connections with the information above. For equipment parts, also verify the machine serial number whenever the manufacturer catalog uses serial breaks.
Part Summary
Keywords: oil-cooler thermostat, Compatible Engines: Cummins ISX, Cummins QSX, 4952629, 3680453.