This parking brake drum is designed as an OE-equivalent replacement for ISUZU NQR, NPR, and NPR-HD trucks equipped with 4BD1 3.9L, 4HE1 4.8L, or 4JJ1 3.0L diesel engines. It provides reliable holding power for the parking brake system, ensuring secure vehicle immobilization during parking or service operations. Manufactured to OEM dimensional and balance specifications, this brake drum ensures proper fitment, consistent braking surface contact, and stable performance under load. Ideal for replacing worn, out-of-round, or damaged parking brake drums during brake system service or driveline repair.
Exact OE-Spec Parking Brake Drum — Designed to match factory dimensions and mounting specifications for proper fit and function
Vehicle Compatibility — Fits ISUZU NQR, NPR, and NPR-HD trucks with: • 4BD1 3.9L & 4HE1 4.8L engines (1994–2004 • 4JJ1 3.0L engine (2010–2013)
Reliable Parking Brake Performance — Provides consistent holding force to secure the vehicle when parked
Precision-Machined Braking Surface — Ensures even shoe contact and stable braking operation
Heavy-Duty Construction — Built to withstand load stress, heat, and long-term commercial use
Direct Replacement Fit — Installs using factory mounting points with no modifications required
OEM
8970339891 / 8970339890
8944766711 / 8944766710
Specifications
| SKU / Part Number | 7033989 |
|---|---|
| Brand | GoTrucky |
| OEM | 8970339891, 8970339890, 8944766711, 8944766710
|
| Weight | 5.75 lb |
| Dimensions (L × W × H) | 9 in × 9 in × 4 in |
| Category | Brake System |
Compatibility
| Make | Model | Years | Engine | Liters | Fuel |
|---|---|---|---|---|---|
| Isuzu | NPR | 1995–1998 | 4BD2-TC | 3.9 | Diesel |
| Isuzu | NPR | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NPR | 2011–2013 | 4JJ1-TC | 3.0 | Diesel |
| Isuzu | NPR-HD | 2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NQR | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Chevrolet | W3500 Tiltmaster | 1995–1998 | 4BD2-TC | 3.9 | Diesel |
| Chevrolet | W3500 Tiltmaster | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Chevrolet | W4500 Tiltmaster | 2004 | 4HE1-TC | 4.8 | Diesel |
| Chevrolet | W5500 Tiltmaster | 1999–2004 | 4HE1-TC | 4.8 | Diesel |
| GMC | W3500 Forward | 1995–1998 | 4BD2-TC | 3.9 | Diesel |
| GMC | W3500 Forward | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| GMC | W4500 Forward | 2004 | 4HE1-TC | 4.8 | Diesel |
| GMC | W5500 Forward | 1999–2004 | 4HE1-TC | 4.8 | Diesel |