{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2001 Peterbilt 387
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2001 Peterbilt 387

2001 Peterbilt 387 Thermostats

Refine by:

Shop Catalog

Showing 1 - 15 of 18 results
Display item:
15
30
45
Sort by:
Weir-Stat Series Thermostat
Gates®
Weir-Stat Series Thermostat
Part Number: GAT33577
Guaranteed to Fit
$33.99
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L DIESEL, 170 Degree
Product Details
Notes : 1.37 in. depth from flange; 2.88 in. flange diameter; 1.37 in. H from flange; 2.27 in. valve diameter; With (1) seal; Weir-stat S top by-pass design; Heavy-duty thermostat typeQuantity Sold : Sold individuallyWarranty : Lifetime Gates limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Cooling EssentialsOpening Temperature Rating : 170 degreesSeries : Weir-Stat SeriesMaterial : Stainless SteelRecommended Use : OE Replacement
Gates OE Replacement Thermostat
Gates®
Gates OE Replacement Thermostat
Part Number: GAT33576
Guaranteed to Fit
$40.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L DIESEL, 160 Degree
Product Details
Prop 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Cooling EssentialsOpening Temperature Rating : 160 degreesSeries : Gates OE ReplacementRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD219-180
Guaranteed to Fit
$13.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 4 Cyl 3.5L Temperature 180F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 DegreesRecommended Use : OE Replacement
HD Series Thermostat
Motorad®
HD Series Thermostat
Part Number: MRD4072-90
Guaranteed to Fit
$12.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 7.2L Temperature 190F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 190 DegreesSeries : HD SeriesMaterial : Stainless SteelRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD219-160
Guaranteed to Fit
$11.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 4 Cyl 3.5L Temperature 160F; Alternate Temperature Option
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 160 degreesRecommended Use : OE Replacement
HD Series Thermostat
Motorad®
HD Series Thermostat
Part Number: MRD4072-80
Guaranteed to Fit
$12.99
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 7.2L Temperature 180F; Alternate Temperature Option
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 DegreesSeries : HD SeriesMaterial : Stainless SteelRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD880080
Guaranteed to Fit
$23.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 15.8L Oe Specified Temperature 180 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L Oe Specified Temperature 180 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L For Engine Coolant System; Oe Specified Temperature 180 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 14.6L Oe Specified Temperature 180 Degrees
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 degrees FRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD880070
Guaranteed to Fit
$24.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 15.8L Oe Specified Temperature 170 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L Oe Specified Temperature 170 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L For Engine Coolant System; Oe Specified Temperature 170 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 14.6L Oe Specified Temperature 170 Degrees
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 170 degreesRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD880090
Guaranteed to Fit
$26.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 15.8L Oe Specified Temperature 190 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L Oe Specified Temperature 190 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L For Engine Coolant System; Oe Specified Temperature 190 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 14.6L Oe Specified Temperature 190 Degrees
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 190 DegreesRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD880060
Guaranteed to Fit
$19.99
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 15.8L Temperature 160F; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L Temperature 160F; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L Temperature 160F; For Engine Coolant System; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 14.6L Temperature 160F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 160 degreesRecommended Use : OE Replacement
HD Series Thermostat
Motorad®
HD Series Thermostat
Part Number: MRD4061-60
Guaranteed to Fit
$19.99
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L Temperature 160F; For Engine Coolant System; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 14.9L Temperature 160F; For Engine Coolant System; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 160 degreesSeries : HD SeriesRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD404790
Guaranteed to Fit
$27.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 15.8L Temperature 190F; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L Temperature 190F; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L Temperature 190F; For Engine Coolant System; Oe Specified Temperature
  • 2001 Peterbilt 387 Base 6 Cyl 14.6L Temperature 190F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 190 degrees FRecommended Use : OE Replacement
HD Series Thermostat
Motorad®
HD Series Thermostat
Part Number: MRD4041-60
Guaranteed to Fit
$31.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 7.0L Temperature 160F; 2-9/16 In Between Flanges; Alternate Temperature Option
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 160 deg. F / 71 deg. CSeries : HD SeriesMaterial : Stainless Steel, Brass, and CopperRecommended Use : OE Replacement
Weir-Stat Series Thermostat
Gates®
Weir-Stat Series Thermostat
Part Number: GAT33579
Guaranteed to Fit
$32.99
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 12.0L DIESEL, 190 Degree
Product Details
Notes : 1.37 in. depth from flange; 2.88 in. flange diameter; 1.37 in. H from flange; 2.27 in. valve diameter; With (1) seal; Weir-stat S top by-pass design; Heavy-duty thermostat typeQuantity Sold : Sold individuallyWarranty : Lifetime Gates limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Cooling EssentialsOpening Temperature Rating : 190 DegreesSeries : Weir-Stat SeriesMaterial : Stainless SteelRecommended Use : OE Replacement
HD Series Thermostat
Motorad®
HD Series Thermostat
Part Number: MRD4061-80
Guaranteed to Fit
$45.49
Vehicle Fitment
  • 2001 Peterbilt 387 Base 6 Cyl 10.8L For Engine Coolant System; Oe Specified Temperature 180 Degrees
  • 2001 Peterbilt 387 Base 6 Cyl 14.9L For Engine Coolant System; Oe Specified Temperature 180 Degrees
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 degrees FSeries : HD SeriesMaterial : Steel and copperRecommended Use : OE Replacement
Page 1 of 2 | Showing 1 - 15 of 18 results

Popular Products

Helpful Automotive Resources

P0597 Code: Thermostat Heater Control Circuit / Open
P0597 Code: Thermostat Heater Control Circuit / OpenDiagnostic trouble code (DTC) P0597 code stands for “Thermostat Heater Control Circuit/Open.”
What Does It Mean When the Engine Is Hot While the AC Is Off?
What Does It Mean When the Engine Is Hot While the AC Is Off?If you’re wondering how your engine gets so hot even if the air conditioning is off, then there are many explanations as to why. Usually, it’s due to a lack of coolant. In other cases, the culprit for an overheating engine is broken parts. Here are some of the potential
What Does Check Gauges Mean?
What Does Check Gauges Mean?The check gauge light is usually triggered once the PCM detects something reading that’s outside normal parameters. These readings include: Coolant TemperatureEngine RPMFuel LevelOil PressureTransmission temperatureTire PressureWheel SpeedVoltmeter Common Triggers of the Check Gauges Light
What Causes a Car to Overheat When Idling?
What Causes a Car to Overheat When Idling?Leaving your AC running may contribute to this problem because the car’s AC forces the engine to work harder. These factors combined can make the engine overheat very quickly. A simple solution would be to turn off the AC in hopes of lowering the temperature of the engine, but if
Why Is My Car Heater Not Blowing Hot Air?
Why Is My Car Heater Not Blowing Hot Air?The heater core distributes heat, blowing it into the air with a blower fan. In many ways, you could compare the heater core to a radiator because they are both heat exchangers. Damaged heater cores often go hand in hand with coolant problems.
Where Is the Thermostat Located?
Where Is the Thermostat Located?Have you driven your vehicle recently? Because if the answer’s yes, you’ll want to turn off the engine and let it cool down before trying to access the thermostat. This is because you’ll have to unclamp your radiator hose and drain your coolant before you can get to your thermostat.