1989 Peterbilt 378 Accessory Drive Belt
Browse our online catalogue to find original replacement Accessory Drive Belts specifically designed to fit a 1989 Peterbilt 378.

1989 Peterbilt 378 Accessory Drive Belt
$30.58
10+ In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 59 1/2" Belt
w/ 59 1/2" Belt





1989 Peterbilt 378 Accessory Drive Belt
$31.81
$27.13
10+ In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan
Required Per Vehicle: 3
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 53-1/2in Long Belt
with 53-1/2in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$34.15
$29.12
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Alternator and Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
with 57in Long Belt
with 57in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$28.63
$24.45
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);





1989 Peterbilt 378 Accessory Drive Belt
$33.59
$28.57
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Alternator and Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.5L 638ci6;
Engine Base: 10.5L 638ci6;
Vehicle Fitment Notes:
with 56in Long Belt
with 56in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$33.59
$28.57
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan
Required Per Vehicle: 3
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 56in Long Belt
with 56in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$29.07
$26.36
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Alternator
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 47-1/2in Long Belt
with 47-1/2in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$29.22
$24.95
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Alternator
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 49in Long Belt
with 49in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$33.10
$28.22
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 55in Long Belt
with 55in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$33.10
$28.22
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 55in Long Belt
with 55in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$34.36
$29.30
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.5L 638ci6;
Engine Base: 10.5L 638ci6;
Vehicle Fitment Notes:
with 58in Long Belt
with 58in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$35.10
$29.91
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 56in Long Belt
with 56in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$28.42
$23.43
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Alternator
Required Per Vehicle: 2
Fits: 1989 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);





1989 Peterbilt 378 Accessory Drive Belt
$28.42
$23.43
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Alternator and Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.5L 638ci6;
Engine Base: 10.5L 638ci6;
Vehicle Fitment Notes:
with 46in Long Belt
with 46in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$32.27
$27.54
In Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan To Alternator and Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.5L 638ci6;
Engine Base: 10.5L 638ci6;
Vehicle Fitment Notes:
with 54in Long Belt
with 54in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$39.54
$33.40
Limited Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.5L 638ci6;
Engine Base: 10.5L 638ci6;
Vehicle Fitment Notes:
with 66in Long Belt
with 66in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$28.98
$24.52
Limited Stock
Condition: New
Ships: Today, Feb. 16th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Alternator
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
with 46in Long Belt
with 46in Long Belt

1989 Peterbilt 378 Accessory Drive Belt
$24.71
10+ In 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)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);
Vehicle Fitment Notes:
w/ 48" Belt
w/ 48" Belt

1989 Peterbilt 378 Accessory Drive Belt
$34.15
In 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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
w/ 56" Belt
w/ 56" Belt

1989 Peterbilt 378 Accessory Drive Belt
$42.52
In 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)
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 58 3/8 " belt Matched Set of 2 Belts
w/ 58 3/8 " belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$27.18
In 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)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);
Engine Base: 10.0L 10014cc 611ci L6 (4.9213x5.3543; 125x136);
Vehicle Fitment Notes:
w/ 52" Belt
w/ 52" Belt

1989 Peterbilt 378 Accessory Drive Belt
$27.18
In 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)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 53" belt
w/ 53" belt

1989 Peterbilt 378 Accessory Drive Belt
$27.18
In 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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 53" belt
w/ 53" belt

1989 Peterbilt 378 Accessory Drive Belt
$28.26
In 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)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 55" belt
w/ 55" belt

1989 Peterbilt 378 Accessory Drive Belt
$28.26
In 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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 55" belt
w/ 55" belt

1989 Peterbilt 378 Accessory Drive Belt
$24.32
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)
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
1/2" Top Width, 42" Long Matched Set of 2 Belts
1/2" Top Width, 42" Long Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$28.26
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)
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 54" Belt
w/ 54" Belt

1989 Peterbilt 378 Accessory Drive Belt
$28.26
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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 54" Belt
w/ 54" Belt

1989 Peterbilt 378 Accessory Drive Belt
$28.29
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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 56" Belt
w/ 56" Belt

1989 Peterbilt 378 Accessory Drive Belt
$30.05
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)
Alternator and Air Conditioning
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;

1989 Peterbilt 378 Accessory Drive Belt
$30.05
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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 57" Belt
w/ 57" Belt

1989 Peterbilt 378 Accessory Drive Belt
$34.08
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)
Fan
Required Per Vehicle: 1
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
w/ 54 1/2" Belt
w/ 54 1/2" Belt

1989 Peterbilt 378 Accessory Drive Belt
$42.52
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)
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 58 Belt Matched Set of 2 Belts
w/ 58 Belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$46.22
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)
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 60" Belt Matched Set of 2 Belts
w/ 60" Belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$24.71
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)
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
1/2" Top Width, 46" Long Matched Set of 2 Belts
1/2" Top Width, 46" Long Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$24.71
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)
Alternator
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 46" belt
w/ 46" belt

1989 Peterbilt 378 Accessory Drive Belt
$24.71
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)
Alternator
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
w/ 47 1/2" belt
w/ 47 1/2" belt





1989 Peterbilt 378 Accessory Drive Belt
$39.46
$35.76
In Stock
Condition: New
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Fan
Required Per Vehicle: 2
Fits: 1989 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);
Vehicle Fitment Notes:
with 45-1/2in Long Belt
with 45-1/2in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$39.76
$32.77
Out of Stock
Condition: New
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
with 54in Long Belt
with 54in Long Belt





1989 Peterbilt 378 Accessory Drive Belt
$35.25
$31.79
Out of Stock
Condition: New
Air Conditioning
Required Per Vehicle: 1
Fits: 1989 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);
Vehicle Fitment Notes:
with 42-1/2in Long Belt
with 42-1/2in Long Belt

1989 Peterbilt 378 Accessory Drive Belt
$32.55
Out of Stock
Condition: New
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 42" Belt Matched Set of 2 Belts
w/ 42" Belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$33.49
Out of Stock
Condition: New
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 46" belt Matched Set of 2 Belts
w/ 46" belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$38.85
Out of Stock
Condition: New
Fan
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 51" belt Matched Set of 2 Belts
w/ 51" belt Matched Set of 2 Belts

1989 Peterbilt 378 Accessory Drive Belt
$42.52
Out of Stock
Condition: New
Air Conditioning
Required Per Vehicle: 2
Fits: 1989 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
w/ 56 3/4" Belt Matched Set of 2 Belts
w/ 56 3/4" Belt Matched Set of 2 Belts