Brake Parts

Our 3807A Balanced Brake Drum is engineered to provide exceptional braking performance for heavy-duty commercial trucks. Manufactured from premium high-strength cast iron and precision balanced to reduce vibration, this brake drum delivers smooth braking, superior heat dissipation, and long-lasting durability in demanding fleet operations. Designed as a direct replacement for OEM 3807A applications, this brake drum is precision machined to ensure consistent brake shoe contact, dependable stopping power, and extended brake system life. Its robust construction makes it ideal for fleets, repair shops, and owner-operators who demand reliable performance on every mile. Features Precision balanced for smooth, vibration-free braking Premium high-strength cast iron construction Excellent heat dissipation helps reduce brake fade Precision-machined braking surface for consistent stopping performance Direct OEM replacement for easy installation Outboard mounting design for simplified brake service Built for heavy-duty commercial truck applications Ideal for fleets, repair facilities, and owner-operators Specifications Industry Part Number: 3807A Brake Size: 16.5" × 7.00" Mounting Type: Outboard Bolt Holes: 10 Bolt Circle Diameter: 11.25" Pilot Diameter: 8.78" Material: Premium Cast Iron Balanced: Yes Approximate Weight: 118 lb per drum Common Cross Reference Numbers Gunite: 3807A, 3807AX Webb: 66864B ConMet: 10012574 Meritor: 3214X Automann: 151.3807A Always verify your OEM or interchange part number before ordering. Applications Fits many heavy-duty commercial truck drive axle and trailer applications using a 16.5" × 7" outboard-mounted brake drum . Commonly paired with 4707 brake shoes . Always verify brake dimensions and OEM part numbers to ensure proper fitment. Why Choose Our Balanced Brake Drums? Our balanced brake drums are manufactured to meet or exceed OEM specifications, providing reliable braking performance, reduced vibration, and extended service life. Built for demanding commercial trucking environments, they deliver the strength, durability, and consistent performance that fleets and owner-operators rely on every day.

Our Balanced Brake Drum 3758 / 3598 Replacement is engineered to provide dependable stopping power for heavy-duty commercial trucks and trailers. Manufactured from premium-grade cast iron and precision balanced to minimize vibration, this brake drum delivers consistent braking performance, superior heat dissipation, and extended service life under demanding fleet operations. Designed as a direct replacement for OEM 3758 and 3598 applications, this drum offers precise fitment and reliable performance for both fleet maintenance and owner-operator repairs. Every drum is machined to strict quality standards to ensure smooth braking and reduce brake shoe wear. Features Precision balanced to reduce vibration and brake pulsation Premium high-strength cast iron construction Excellent heat dissipation for consistent braking performance Precision-machined braking surface for maximum durability Direct OEM replacement with no modifications required Ideal for commercial trucks, tractors, and trailers Built for demanding fleet and highway applications Specifications Industry Part Number: 3758 / 3598 Brake Size: 16.5" × 5" Mounting Type: Outboard Bolt Holes: 10 Bolt Circle Diameter: 11.25" Pilot Diameter: 8.78" Overall Depth: 9.37" Material: Premium Cast Iron Balanced: Yes Approximate Weight: 95 lb per drum Common Cross Reference Numbers Gunite: 3758, 3758X, 3598, 3598X Webb: 65151B ConMet: 10005332, 10014756, 107453 Freightliner: N42A107453 Meritor: 85123383002 Applications Fits many heavy-duty truck and trailer brake systems using a 16.5" × 5" outboard-mounted brake drum , including applications equipped with 4720 brake shoes . Always verify brake dimensions and OEM part numbers before ordering. Why Choose Our Balanced Brake Drums? Our balanced brake drums are manufactured to meet or exceed OEM specifications, providing dependable braking performance, longer service life, and reduced maintenance costs. Every drum is engineered for consistent fit, durability, and reliable performance in demanding commercial trucking applications.

Our Balanced Brake Drum 3600AX Replacement is engineered to deliver dependable braking performance for heavy-duty commercial trucks and trailers. Manufactured from premium cast iron and precision balanced to minimize vibration, this brake drum provides smooth braking, excellent heat dissipation, and extended service life under demanding highway and fleet applications. Designed as a direct replacement for OEM 3600AX applications, it installs without modifications and is ideal for routine brake maintenance or complete brake system overhauls. Precision machining ensures consistent braking performance and reduced brake shoe wear. Features Precision balanced for smooth, vibration-free braking Premium high-strength cast iron construction Excellent heat dissipation helps reduce brake fade Precision-machined braking surface for consistent performance Direct OEM replacement with no modifications required Ideal for heavy-duty trucks, tractors, and trailers Suitable for fleet and commercial applications Specifications Industry Number: 3600AX Brake Size: 16.5" × 7" Mounting Type: Outboard Bolt Holes: 10 Bolt Circle: 11.25" Pilot Diameter: 8.78" Material: High-quality Cast Iron Balanced: Yes Common Replacement Numbers Gunite: 3600AX, 3600A Webb: 66864B ConMet: 10009830 Meritor: 85-123207 Automann: 145.3600AX Applications Fits many heavy-duty commercial truck and trailer brake systems using a 16.5" × 7" outboard-mounted brake drum . Always verify dimensions and OEM part numbers before ordering.

Premium Heavy-Duty Steer Axle Brake Drum The Motion Trucking Parts 3800X Balanced Front Brake Drum is engineered for demanding heavy-duty commercial truck applications. Manufactured from premium high-strength cast iron and precision balanced for smooth operation, this brake drum delivers outstanding braking performance, superior heat dissipation, and extended service life. Designed to meet or exceed OEM specifications, the 3800X provides exceptional durability, dimensional accuracy, and consistent braking performance for fleets, owner-operators, and repair facilities. Features Premium balanced brake drum Manufactured from high-strength cast iron Precision machined for OE fit and performance Excellent heat dissipation for reduced brake fade Precision balanced to minimize vibration Heavy-duty construction for long service life Engineered for steer axle applications Meets or exceeds OEM specifications 100% quality inspected before shipment Specifications Brand: Motion Trucking Parts Part Number: MTP-3800X Position: Front / Steer Axle Brake Drum Type: Balanced Material: Premium Cast Iron Mounting Type: Outboard Wheel Type: Disc Weight: 81 lbs Bolt Hole Quantity: 10 Bolt Circle Diameter: 11.25 in Bolt Hole Diameter: 1.35 in Maximum Brake Diameter: 15.00 in Maximum Wear Diameter: 15.12 in Brake Shoe Width: 4.00 in Brake Surface Width: 4.61 in Overall Depth: 9.18 in Mounting Flange Thickness: 0.50 in Compatible Brake Shoes This brake drum is designed for 15" × 4" brake shoe assemblies , including: 1308Q 1308E 4702Q / 4702QP (Meritor Q Plus steer axle applications) Compatible with Meritor Q Plus 15" × 4" steer axle brake systems. Cross Reference Replaces or Interchanges with: Gunite 3800X 3726X 9001X ConMet CM10009920 10009920 107164 Webb 65548B 65545B Meritor / Rockwell 85-123448-002 8512344800 Alliance ABP N42A154B Road Choice BD1504X-44 Applications Heavy-duty commercial trucks Class 8 tractors Steer axle applications Fleet maintenance Owner-operators Truck repair facilities Why Choose Motion Trucking Parts? At Motion Trucking Parts, we are committed to supplying premium-quality heavy-duty brake components that fleets can depend on. Every brake drum is manufactured with strict quality standards to ensure reliable braking performance, extended service life, and dependable operation under the toughest road conditions. Motion Trucking Parts — Premium Quality Heavy-Duty Truck Parts Built for Performance.