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1991 Peterbilt 378
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60-Day Returns
Lifetime Replacement
1991 Peterbilt 378

1991 Peterbilt 378 Accessory Drive Belts

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Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Gates®
Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: GAT9550
Guaranteed to Fit
$22.99
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L DIESEL, With 55 1/2 in. Belt O.C.
Product Details
Location : Air Conditioning, FanWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 55.38 in.Top Width : 0.47 in.Type : V-beltEffective Length : 55 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17560
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 56 in. Belt
Product Details
Location : Fan To Alternator and Air ConditioningNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 56.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 56 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17460
Guaranteed to Fit
$16.99
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 46 in. Belt
  • 1991 Peterbilt 378 Base 6 Cyl 14.0L
  • 1991 Peterbilt 378 Base 6 Cyl 10.3L
Product Details
Location : AlternatorQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Dayco Gold Label Top Cog SeriesType : V-beltProduct Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17580
Guaranteed to Fit
$19.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 58 in. Belt
Product Details
Location : FanNotes : Air Brake Compressor and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 58.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 58 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17420
Guaranteed to Fit
$22.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 14.0L 42 in. Belt
Product Details
Location : Air ConditioningNotes : Air Brake Compressor and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 42.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 42 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17530
Guaranteed to Fit
$21.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L 53 1/2 in. Belt
Product Details
Location : FanNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 53.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 53 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17463
Guaranteed to Fit
$19.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L 46 in. Belt
Product Details
Location : AlternatorQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Dayco Gold Label Top Cog SeriesType : V-beltProduct Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17540
Guaranteed to Fit
$25.99
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 54 in. Belt
Product Details
Location : Fan To Alternator and Air ConditioningNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 54.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 54 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17570
Guaranteed to Fit
$28.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 14.6L 57 in. Belt
Product Details
Location : Fan To Alternator and Air ConditioningNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 57.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 57 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17555
Guaranteed to Fit
$26.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L 56 in. Belt
Product Details
Location : Fan To Air ConditioningNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 55.77 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 55.5 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17660
Guaranteed to Fit
$23.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 66 in. Belt
Product Details
Location : FanNotes : Air Brake Compressor and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 66.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 66 in.Product Fit : Direct Fit
Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Gates®
Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: GAT9590
Guaranteed to Fit
$13.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 14.6L DIESEL, With 59 1/2 in. Belt O.C.
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L DIESEL, With 59 3/8 in. Belt O.C.
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L DIESEL, With 59 1/2 in. Belt O.C.
Product Details
Location : Air ConditioningWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 59.38 in.Top Width : 0.47 in.Type : V-beltEffective Length : 59 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17305
Guaranteed to Fit
$13.99
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L 30 1/2 in. Belt
Product Details
Location : AlternatorNotes : Air Conditioning To Air Pump; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 30.77 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 30.5 in.Product Fit : Direct Fit
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Dayco®
Dayco Gold Label Top Cog Series Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: DY17590
Guaranteed to Fit
$14.99
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 14.6L 59 in. Belt
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L 59 in. Belt
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L 59 in. Belt
Product Details
Location : Fan To Air ConditioningNotes : Air Conditioning and Idler; 36 angleWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 59.27 in.Series : Dayco Gold Label Top Cog SeriesTop Width : 0.53 in.Type : V-beltEffective Length : 59 in.Product Fit : Direct Fit
Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Gates®
Accessory Drive Belt - V-belt, Direct Fit, Sold individually
Part Number: GAT9560
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 1991 Peterbilt 378 Base 6 Cyl 10.5L DIESEL, With 56 1/2 Belt O.C.
  • 1991 Peterbilt 378 Base 6 Cyl 12.7L DIESEL, With 56 1/2 Belt O.C.
Product Details
Location : FanWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 56.38 in.Top Width : 0.47 in.Type : V-beltEffective Length : 56 in.Product Fit : Direct Fit
Page 1 of 7 | Showing 1 - 15 of 92 results

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