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2004 Peterbilt 378 Engine Water Pump

Browse our online catalogue to find original replacement Engine Water Pumps specifically designed to fit a 2004 Peterbilt 378.

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2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 4 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US952 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$675.43
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: C13; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Includes back housing
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$288.92
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISM 10.8; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
3 hole mount long shaft
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$493.94
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX (12 groove pulley)
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$486.08
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: C12; Engine Manufacturer: Caterpillar;
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$350.24
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX, ISZ (12 groove pulley) Pump only
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 4 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US932 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$534.18
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX, ISZ (12 groove pulley) Complete unit (Short bottom outlet)
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 4 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 1 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 2 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 3 of 4
2004 Peterbilt 378 Engine Water Pump US Motor Works US933 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$551.67
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX, ISZ (12 groove pulley) Complete unit (Long bottom outlet)
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$635.01
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
Series 60 12.7L EGR
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$674.40
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX (11 groove pulley)
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$482.97
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
ISX (10 groove pulley)
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 4 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961020 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$559.78
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 12-Rib Pulley
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 4 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962120 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
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$593.86
Limited Stock
Condition: New
Ships: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 1 of 3
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 2 of 3
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 3 of 3
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 1 of 3The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 1 of 3
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 2 of 3
2004 Peterbilt 378 Engine Water Pump Dayco DP1359 image 3 of 3
2004 Peterbilt 378 Engine Water Pump
rating star iconrating star iconrating star iconrating star iconrating star icon
$652.46
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 4 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1446 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
rating star iconrating star iconrating star iconrating star iconrating star icon
$615.86
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Vehicle Fitment Notes:
12 Groove Pulley, One Piece Pump Assembly Serpentine Belt Driven
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 4 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1727 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
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$609.33
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Vehicle Fitment Notes:
10 Groove Pulley, One Piece Pump Assembly Serpentine Belt Driven
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 4 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1761 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
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$845.29
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
w/o Threaded Hub Heavy Duty Suitcase Style Pump
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 4 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1766 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
rating star iconrating star iconrating star iconrating star iconrating star icon
$640.81
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Vehicle Fitment Notes:
Two Piece Pump Assembly Pump Only Serpentine Belt Driven
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 4 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 1 of 4The Wrench Monkey Recommend Product
The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 1 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 2 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 3 of 4
2004 Peterbilt 378 Engine Water Pump Dayco DP1768 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
rating star iconrating star iconrating star iconrating star iconrating star icon
$490.40
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
Serpentine Belt Driven
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$539.25
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: ISM 10.8; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
3 hole mount short shaft
no image available The Wrench Monkey Recommend Product
no image available The Wrench Monkey Recommend Product
2004 Peterbilt 378 Engine Water Pump
$440.61
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Designation: C13; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Pump Only
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 4 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1961010 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
rating star iconrating star iconrating star iconrating star iconrating half star icon
$640.61
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke); Engine Designation: ISX 15.0; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 10-Rib Pulley
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 4 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962240 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$502.03
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147); Engine Designation: ISM 10.8; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/o Threaded Hub
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 4 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 1 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 2 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 3 of 4
2004 Peterbilt 378 Engine Water Pump GMB 1962370 image 4 of 4
2004 Peterbilt 378 Engine Water Pump
$701.24
Out of Stock
Condition: New
Required Per Vehicle: 1
Product Details
Fits: 2004 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12;