Engine Thermostat 389-5308 for Caterpillar 257D

OEM / REF: 389-5308SKU: pilotpart437478

Engine Thermostat 389-5308 for Caterpillar Loader 257D 272D 277D 297D 299D 299D3 914K 910K is a Engine Thermostat replacement part indexed for Caterpillar 257D and Caterpillar 277D, with 3 application records on file. Match OEM part number 389-5308 and confirm fitment for Caterpillar Engine Spare Parts before ordering.

Stock
In stock
Condition
New
Fitment
Caterpillar Engine Spare Parts
Category
Thermostat
  • Fitment support before you order
  • Worldwide delivery options

Thermostat Description

This Thermostat is indexed for Caterpillar 257D; Caterpillar 277D; Caterpillar 297D; Caterpillar 297D2. Compare reference number 389-5308 against the label on your existing Caterpillar component before ordering.

Before checkout, compare OEM part number 389-5308, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

Applications

  • Caterpillar 257D
  • Caterpillar 277D
  • Caterpillar 297D
  • Caterpillar 297D2
  • Caterpillar 257D3
  • Caterpillar 297D XHP
  • Caterpillar 287D
  • Caterpillar 297D2 XHP
  • Caterpillar 289D
  • Caterpillar 289D3
  • Caterpillar 259D3
  • Caterpillar 279D3
  • Caterpillar 299D XHP
  • Caterpillar 259D
  • Caterpillar 299D
  • Caterpillar 279D
  • Caterpillar 299D3 XE
  • Caterpillar 299D3
  • Caterpillar 299D2
  • Caterpillar 299D2 XHP
  • Caterpillar 308
  • Caterpillar 309
  • Caterpillar 308E2 SR
  • Caterpillar 308E SR
  • Caterpillar 307E
  • Caterpillar 308E CR
  • Caterpillar 308E2SR
  • Caterpillar 308E2CR
  • Caterpillar 306E
  • Caterpillar 307E2
  • Caterpillar 308E2 CR
  • Caterpillar 308.5
  • Caterpillar 308E
  • Caterpillar 308E2
  • Caterpillar 310
  • Caterpillar AP355
  • Caterpillar AP300
  • Caterpillar AP355F
  • Caterpillar AP300F
  • Caterpillar 289D3
  • Caterpillar 246D
  • Caterpillar 262D3
  • Caterpillar 279D3
  • Caterpillar 272D
  • Caterpillar 272D XHP
  • Caterpillar 242D3
  • Caterpillar 246D3
  • Caterpillar 236D
  • Caterpillar 236D3
  • Caterpillar 242D
  • Caterpillar 262D
  • Caterpillar 272D2 XHP
  • Caterpillar 272D3 XE
  • Caterpillar 272D3
  • Caterpillar 272D2
  • Caterpillar 908K
  • Caterpillar 908M
  • Caterpillar 907K
  • Caterpillar 906K
  • Caterpillar 906M
  • Caterpillar 908M
  • Caterpillar 906H2
  • Caterpillar 908H2
  • Caterpillar 914K
  • Caterpillar 906M
  • Caterpillar 910K
  • Caterpillar 907H2
  • Caterpillar 907M

Specifications

Overall Height (In)2.1
Overall Width (In)2.2
Overall Length (In)2.2
Part Number389-5308

Fitment Notes

Brand or application signal
Caterpillar Engine Spare Parts
Product family
Thermostat
System category
Engine Spare Parts > Lubrication & Cooling Systems > Thermostat
Recommended verification
OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability
InStock
Shipping
Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns
Returns are easier when fitment is confirmed before ordering.
B2B support
Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.