M328N121 GBK Brake Drum, 15″ x 8.62″, 10-Hole, Balanced
Heavy-duty cast iron brake drum, 15″ x 8.62″, 10-hole, 112 lbs. Direct replacement for 3750X, 61988B. Note: Same product as GD3055 (different SKU name).
Product Specifications
| Brake Size | 15" x 8.6" |
|---|---|
| Bolt Holes | 10 |
| Bolt Size | 1" |
| Drum Weight | 112 lbs |
| Vehicle Type | Semi Truck / Heavy Duty |
- Heavy-Duty Brake Drum: GBK's M328N121 is a robust 15" x 8.6" brake drum designed for heavy-duty commercial truck and trailer applications, ensuring reliable performance under demanding conditions.
- Precision Balanced Design: This 10-hole brake drum is precision balanced to reduce vibrations, providing a smoother ride and extending the lifespan of tires and wheel-end components on semi trucks.
- OEM Replacement Compatibility: Directly replaces Meritor 61988B, making it an OEM replacement part that fits seamlessly with existing brake systems on heavy-duty vehicles.
- Durable Cast Iron Construction: Crafted from high-strength cast iron, the brake drum withstands extreme heat and mechanical stress, ensuring long-lasting durability and consistent braking efficiency.
- Specifications: Measures 15" diameter by 8.6" width, features 10 bolt holes with 1" bolt size, and weighs 112 lbs—ideal for commercial truck brake assemblies.
- DOT Compliant Safety Standards: Engineered to meet or exceed DOT compliance standards for commercial truck brake components, guaranteeing safety and reliability on the road.
- Packaging Information: Supplied individually per carton to maintain product integrity and ease of handling during installation and inventory management.
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.