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1991 Western Star 4900 Parts
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![Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]](https://www.jegs.com/images/mini_100/400/465/465-33549.jpg)
GATES
Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]
Part Number: 465-33549
$12284
Ships on 10/16/2026
Lowest price guarantee![Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]](https://www.jegs.com/images/mini_200/400/465/465-33549.jpg)
GATES
Heavy-Duty Thermostat for Select 1981-2000 Ford, Peterbilt and Other Makes [175 Degree F]
Part Number: 465-33549
Ships on 10/16/2026Lowest Price Guarantee$12284
![Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_100/400/465/465-33578.jpg)
GATES
Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]
Part Number: 465-33578
$10738
Ships on Oct 12, 2026Lowest price guarantee![Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]](https://www.jegs.com/images/mini_200/400/465/465-33578.jpg)
GATES
Heavy-Duty Thermostat for Select 1965-2011 International, Ford and Other Makes [180 Degree F]
Part Number: 465-33578
Ships on Oct 12, 2026Lowest Price Guarantee$10738
GATES
Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
$11864
Ships on Oct 12, 2026Lowest price guarantee
GATES
Heavy-Duty Thermostat for Select 1965-2017 International, Ford and Other Makes
Part Number: 465-33579
Ships on Oct 12, 2026Lowest Price Guarantee$11864
MELLING
VS-1213 Stock Replacement Valve Spring Autocar, Diamond Reo, Ford, Freightliner, GMC, International, Kenworth, Mack,
Part Number: 689-VS-1213
$499
Ships on 10/13/2026Lowest price guarantee
MELLING
VS-1213 Stock Replacement Valve Spring Autocar, Diamond Reo, Ford, Freightliner, GMC, International, Kenworth, Mack,
Part Number: 689-VS-1213
Ships on 10/13/2026Lowest Price Guarantee$499
JEGS
Fuel Water Separator Filter for 1980-2015 Chevy, Ford, Freightliner, GMC, International, Kenworth, Peterbilt Models
Part Number: 555-150620
$1039$12.99
YOU SAVE
$2.60Ships on 10/13/2026Lowest price guarantee
JEGS
Fuel Water Separator Filter for 1980-2015 Chevy, Ford, Freightliner, GMC, International, Kenworth, Peterbilt Models
Part Number: 555-150620
Ships on 10/13/2026Lowest Price Guarantee$1039 $12.99
YOU SAVE
$2.60![PowerBand V-Belt for Select 1987-1999 Freightliner and Other Makes [2 Strands, HC50 Section, 52.020 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-2_9510pb.jpg)
GATES
PowerBand V-Belt for Select 1987-1999 Freightliner and Other Makes [2 Strands, HC50 Section, 52.020 in. Outside Circumference]
Part Number: 465-2/9510PB
$12280
Ships on 10/16/2026Lowest price guarantee![PowerBand V-Belt for Select 1987-1999 Freightliner and Other Makes [2 Strands, HC50 Section, 52.020 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-2_9510pb.jpg)
GATES
PowerBand V-Belt for Select 1987-1999 Freightliner and Other Makes [2 Strands, HC50 Section, 52.020 in. Outside Circumference]
Part Number: 465-2/9510PB
Ships on 10/16/2026Lowest Price Guarantee$12280
![Heavy-Duty Water Pump for Select 1984-1992 International, White and Other Makes [14.0L L6]](https://www.jegs.com/images/mini_100/400/465/465-44084hd.jpg)
GATES
Heavy-Duty Water Pump for Select 1984-1992 International, White and Other Makes [14.0L L6]
Part Number: 465-44084HD
$24972
Ships on 10/16/2026Lowest price guarantee![Heavy-Duty Water Pump for Select 1984-1992 International, White and Other Makes [14.0L L6]](https://www.jegs.com/images/mini_200/400/465/465-44084hd.jpg)
GATES
Heavy-Duty Water Pump for Select 1984-1992 International, White and Other Makes [14.0L L6]
Part Number: 465-44084HD
Ships on 10/16/2026Lowest Price Guarantee$24972
![FleetRunner V-Belt for Select 1960-1996 Ford, International and Other Makes [HC50 Section, 63.400 in. Outside Circumference]](https://www.jegs.com/images/mini_100/400/465/465-9630hd.jpg)
GATES
FleetRunner V-Belt for Select 1960-1996 Ford, International and Other Makes [HC50 Section, 63.400 in. Outside Circumference]
Part Number: 465-9630HD
$6754
Ships on Oct 12, 2026Lowest price guarantee![FleetRunner V-Belt for Select 1960-1996 Ford, International and Other Makes [HC50 Section, 63.400 in. Outside Circumference]](https://www.jegs.com/images/mini_200/400/465/465-9630hd.jpg)
GATES
FleetRunner V-Belt for Select 1960-1996 Ford, International and Other Makes [HC50 Section, 63.400 in. Outside Circumference]
Part Number: 465-9630HD
Ships on Oct 12, 2026Lowest Price Guarantee$6754
GATES
Heavy-Duty Water Pump for Select 1988-2018 Freightliner, Ford and Other Makes
Part Number: 465-46002HD
$62376
Ships on Oct 12, 2026Lowest price guarantee
GATES
Heavy-Duty Water Pump for Select 1988-2018 Freightliner, Ford and Other Makes
Part Number: 465-46002HD
Ships on Oct 12, 2026Lowest Price Guarantee$62376
MELLING
VS-1207 Valve Spring for Select Heavy-Duty/Industrial Application with 14.6L/18L Engines
Part Number: 689-VS-1207
$399
Ships on 10/13/2026Lowest price guarantee
MELLING
VS-1207 Valve Spring for Select Heavy-Duty/Industrial Application with 14.6L/18L Engines
Part Number: 689-VS-1207
Ships on 10/13/2026Lowest Price Guarantee$399
MELLING
VS-1418 Stock Replacement Valve Spring Detroit Diesel 8.5L, 11.1L, 12.7L, 14.0L
Part Number: 689-VS-1418
$499
Ships on 10/13/2026Lowest price guarantee
MELLING
VS-1418 Stock Replacement Valve Spring Detroit Diesel 8.5L, 11.1L, 12.7L, 14.0L
Part Number: 689-VS-1418
Ships on 10/13/2026Lowest Price Guarantee$499
MELLING
VS-1414 Valve Spring for Select Heavy-Duty/Industrial Application with Cummins 10.8L Engine
Part Number: 689-VS-1414
$899
Ships on 10/13/2026Lowest price guarantee
MELLING
VS-1414 Valve Spring for Select Heavy-Duty/Industrial Application with Cummins 10.8L Engine
Part Number: 689-VS-1414
Ships on 10/13/2026Lowest Price Guarantee$899
MELLING
VS-1184 Stock Replacement Valve Spring Autocar, Caterpillar, Crane, Diamond REO, Ford, Freightliner, GMC, International,
Part Number: 689-VS-1184
$399
Ships on 10/13/2026Lowest price guarantee
MELLING
VS-1184 Stock Replacement Valve Spring Autocar, Caterpillar, Crane, Diamond REO, Ford, Freightliner, GMC, International,
Part Number: 689-VS-1184
Ships on 10/13/2026Lowest Price Guarantee$399
GOODYEAR BELTS
17545 Automotive & HD V-Belt, Fits Select Makes/Models, 13A Profile, 54.5 in. Effective Length
Part Number: 498-17545
$1820
Ships on 10/13/2026Lowest price guarantee
GOODYEAR BELTS
17545 Automotive & HD V-Belt, Fits Select Makes/Models, 13A Profile, 54.5 in. Effective Length
Part Number: 498-17545
Ships on 10/13/2026Lowest Price Guarantee$1820
GOODYEAR BELTS
17630 Automotive & HD V-Belt, Fits Select Makes/Models, 13A Profile, 63 in. Effective Length
Part Number: 498-17630
$1754
Ships on 10/13/2026Lowest price guarantee
GOODYEAR BELTS
17630 Automotive & HD V-Belt, Fits Select Makes/Models, 13A Profile, 63 in. Effective Length
Part Number: 498-17630
Ships on 10/13/2026Lowest Price Guarantee$1754
JEGS
Diesel Fuel Filter for 1980-2016 Chevy, Ford, Freightliner, GMC, International, Kenworth, Mack, Peterbilt, Western Star Models
Part Number: 555-150624
$559$6.99
YOU SAVE
$1.40Ships on 10/16/2026Lowest price guarantee
JEGS
Diesel Fuel Filter for 1980-2016 Chevy, Ford, Freightliner, GMC, International, Kenworth, Mack, Peterbilt, Western Star Models
Part Number: 555-150624
Ships on 10/16/2026Lowest Price Guarantee$559 $6.99
YOU SAVE
$1.40
