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






Serpentine Belt
$32.75
$28.77 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Alternator
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$41.76
$34.28 CAD
10+ In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Water Pump and Idler
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);





Serpentine Belt
$38.17
$31.93 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Air Conditioning and Tensioner
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$49.05
$43.52 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Air Conditioning, Alternator and Tensioner
Required Per Vehicle: 1
Vehicle fitment:
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);





Serpentine Belt
$66.07
$58.92 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan and Idler
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$86.37
$74.12 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$86.37
$74.12 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$91.97
$74.79 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$91.97
$74.79 CAD
Limited Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan To Alternator
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$101.59
$89.94 CAD
In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Fan, Alternator and Idler
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);

Serpentine Belt
$28.18 CAD
10+ In Stock
Condition: New
Ships: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Pick-Up: in 3-4 Business Days
Water Pump
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);





Serpentine Belt
$35.16 CAD
Out of Stock
Condition: New
Air Conditioning and Tensioner
Required Per Vehicle: 1
Vehicle fitment:
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





Serpentine Belt
$113.53
$91.36 CAD
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Made in Italy
Vehicle fitment:
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);





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





Serpentine Belt
$113.53
$91.36 CAD
Out of Stock
Condition: New
Fan
Required Per Vehicle: 1
Made in Italy
Vehicle fitment:
Engine Base: 7.2L 441ci L6;
Engine Base: 7.2L 441ci L6;


Serpentine Belt
Call for Pricing
Out of Stock
Condition: New
Water Pump
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);


Serpentine Belt
Call for Pricing
Out of Stock
Condition: New
Water Pump
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);