BESTfit Turbo Extension Pipe Fits PeterbiltFor trucks equipped with high-mount exhaust systems, the BESTfit 5 Inch Turbo Pipe Extension Elbow ensures your Peterbilt 357, 378, or 379 maintains optimal turbo performance. Constructed from...

6 ID to 6 Inch OD Chrome Long Drop Elbow By BESTfit Fits Peterbilt* High Quality Exhaust Elbow * Chrome-Plated Steel* Long Drop* 90 Degree Bend* With Tapered Top 6 Inch OD Bottom * Dimensions:  - 6 Inch ID/OD  - 10 Inch Radius  - 29 Inch...

BESTfit 8 Inch Stainless Steel Y-Pipe Hanger Kit* High Quality Y-Pipe Hanger Bracket Kit * Use With Exhaust Kits With 8 Inch Long Drop Elbows (Elbows Not Included)* Kit Includes:  - (2) Stainless Steel Exhaust Tee Pipe Hanger  - (2) 8 Inch...

BESTfit Polyurethane Exhaust Mount GrommetsIntroducing the BESTfit Black Poly Exhaust Mount Grommets, specifically designed for Peterbilt 375, 377, 378, 379, 386, 389 and 389 Glider models. Made from high-quality black polyurethane, these grommets are...

BESTfit Driver Side Chrome Multi-Bend Exhaust Elbow For Bottom Of Muffler Fits 379 PeterbiltThis high quality chrome 5 inch OD inlet & outlet multi-bend exhaust elbow fits Peterbilt 377 and 378 driver side. It is made in the USA and comes with a 1 year...

BESTfit Turbo Pipe Fits PeterbiltEnhance your Peterbilt 377, 378, or 379 with the BESTfit 5 Inch Turbo Pipe, specifically engineered to replace OE number 14-15329 and Dynaflex number 09-8-101-220. Made of aluminized steel, this turbo pipe boasts a 5-inch...

BESTfit 7 Inch Stainless Steel Y-Pipe Hanger Kit* High Quality Y-Pipe Hanger Bracket Kit * Use With Exhaust Kits With 7 Inch Long Drop Elbows (Elbows Not Included)* Kit Includes:  - (2) Stainless Steel Exhaust Tee Pipe Hanger  - (2) 7 Inch...

BESTfit Peterbilt Direct Replacement Plastic Windshield Washer ReservoirBuilt for lasting use, this windshield washer fluid reservoir is manufactured with premium plastic that can withstand the constant stresses of under the hood temperature changes and...

BESTfit 8 Inch Black Steel Y-Pipe Hanger Kit* High Quality Y-Pipe Hanger Bracket Kit * Use With Exhaust Kits With 8 Inch Long Drop Elbows (Elbows Not Included)* Kit Includes:  - (2) Black Steel Exhaust Tee Pipe Hanger  - (2) 8 Inch Chrome Wide...

BESTfit Driver Side Peterbilt 377 & 378 Chrome Exhaust Bend ElbowOutfit your Peterbilt 377 or 378 with the BESTfit 6 Inch OD Chrome Exhaust Elbow, tapered down to 5 Inch OD for a streamlined connection and better exhaust flow. Built from long-lasting...

BESTfit 6 Inch Stainless Steel Y-Pipe Hanger Kit* High Quality Y-Pipe Hanger Bracket Kit * Use With Exhaust Kits With 6 Inch Long Drop Elbows (Elbows Not Included)* Kit Includes:  - (2) Stainless Steel Exhaust Tee Pipe Hanger  - (2) 6 Inch...

BESTfit Fiberglass Fan Shroud Fits Peterbilt - Replaces 3A-48427D, 3S48427For Peterbilt 387 models between 1999 and 2010, the BESTfit Fan Shroud replacing OEM 3A-48426D offers high-quality fiberglass construction with a gel-coated interior that improves...