1999 Peterbilt 378 Serpentine Belt
Browse our online catalogue to find original replacement Serpentine Belts specifically designed to fit a 1999 Peterbilt 378.



1999 Peterbilt 378 Serpentine Belt
$41.76
$34.28
10+ In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Water Pump and Idler
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);



1999 Peterbilt 378 Serpentine Belt
$66.07
$58.92
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan and Idler
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
Early
Early



1999 Peterbilt 378 Serpentine Belt
$86.37
$74.12
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan To Alternator
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
with 71-1/2in Long Belt
with 71-1/2in Long Belt



1999 Peterbilt 378 Serpentine Belt
$86.37
$74.12
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan To Alternator
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
with 71-1/2in Long Belt
with 71-1/2in Long Belt



1999 Peterbilt 378 Serpentine Belt
$32.75
$28.77
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Alternator
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
Early
Early



1999 Peterbilt 378 Serpentine Belt
$38.17
$31.93
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Air Conditioning and Tensioner
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
Standard Belt
Standard Belt



1999 Peterbilt 378 Serpentine Belt
$101.59
$89.94
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan, Alternator and Idler
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);



1999 Peterbilt 378 Serpentine Belt
$49.05
$43.52
Limited Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Air Conditioning, Alternator and Tensioner
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);



1999 Peterbilt 378 Serpentine Belt
$91.97
$74.79
Limited Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan To Alternator
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
with 73in Long Belt
with 73in Long Belt



1999 Peterbilt 378 Serpentine Belt
$91.97
$74.79
Limited Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Pick-Up: Ready in 1 Hour Monday Feb. 16th
Fan To Alternator
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
with 73in Long Belt
with 73in Long Belt

1999 Peterbilt 378 Serpentine Belt
$28.18
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Water Pump
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);



1999 Peterbilt 378 Serpentine Belt
$35.16
Out of Stock
Condition: New
Air Conditioning and Tensioner
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
High Performance
High Performance



1999 Peterbilt 378 Serpentine Belt
$113.53
$91.36
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Made in Italy
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);
Engine Base: 14.9L 6Cyl L (-)(912) 5.39 137.0(Bore)6.65 169.0(Stroke);



1999 Peterbilt 378 Serpentine Belt
$113.53
$91.36
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Made in Italy
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);



1999 Peterbilt 378 Serpentine Belt
$113.53
$91.36
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Made in Italy
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 7.2L 441ci L6;
Engine Base: 7.2L 441ci L6;
1999 Peterbilt 378 Serpentine Belt
Call for Pricing
Out of Stock
Condition: New
Water Pump
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
1999 Peterbilt 378 Serpentine Belt
Call for Pricing
Out of Stock
Condition: New
Water Pump
Required Per Vehicle: 1
Fits: 1999 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);