
M328N557 – GBK Heavy-Duty Semi Truck Brake Drum, 16.5″x7″, 10-Hole, Balanced, 102 lbs, Replaces 3600A, 56865B
Heavy-duty balanced brake drum, 16.5″ x 7″, 10-hole, 102 lbs. Cross Ref. 3600A/3922X, 56865B.
- SUPERIOR HEAT DISSIPATION: Engineered for exceptional heat absorption and dissipation, reducing brake fade and ensuring consistent stopping power under heavy loads.
- PRECISION BALANCED: Precision-balanced design eliminates vibrations for a smoother, safer ride and extended tire and wheel-end component life.
- SPECIFICATIONS: Size: 16.5" x 7"; Bolt Holes: 10; Weight: 102 lbs. Fits most standard semi-truck rear axle applications.
- DIRECT REPLACEMENT: Cross-references with 3600A/3922X and 56865B for a perfect fit.
- DURABLE CAST IRON: Manufactured from high-strength iron to withstand extreme temperatures and mechanical stress for maximum service life.
Product Specifications
| Brake Size | 16.5" x 7" |
|---|---|
| Bolt Holes | 10 |
Packaging & Delivery
Every GBK Parts order is packed with care. Pallet orders are tightly shrink-wrapped and strapped for safe freight transit. Select products also come in individual branded GBK USA retail boxes — ready for resale or direct customer delivery.
About GBK Parts
GBK Parts is a U.S.-based wholesale and retail distributor of heavy-duty commercial truck parts, headquartered in New Jersey. We specialize in brake components, axle parts, and drivetrain hardware for Class 6–8 trucks, trailers, and commercial vehicles.
We source directly from certified OEM-grade manufacturers and maintain a large inventory in our New Jersey warehouse, enabling fast fulfillment for both retail and wholesale customers across the United States.
Why Choose GBK Parts?
- Direct Wholesale Pricing — Competitive pricing with volume discounts for approved B2B accounts.
- OEM-Grade Quality — All parts meet or exceed OEM specifications. Brake components are FMSI-coded and tested to FMVSS standards.
- Fast Shipping — Same-day or next-day shipping on in-stock items. Free UPS Ground shipping on orders over $5,000 to NJ, NY, PA, OH, and MN.
- Catalog-Based Production — Extensive product catalog covering a wide range of heavy-duty truck and trailer parts, available to order.
- NET 15 Terms — Approved wholesale accounts are eligible for NET 15 payment terms.
