Chevrolet 2003 Suburban
🔧 Engine Interchange
Vehicle: 2003 Chevrolet Suburban 1500
Engine Code: 5.3L Vortec V8 (VIN “T”)
Engine Type: Gen III LS-based OHV V8, aluminum block, SFI
🔄 Interchange Compatibility
- 5.3L Vortec LM7 (1999–2007 GMT800)
✅ Direct fit across:- Chevrolet Tahoe, Silverado 1500
- GMC Yukon, Sierra 1500
-
⚙️ Transmission Notes
- Pairs with 4L60-E 4-speed automatic
- Interchangeable across GMT800 platforms
- Verify bellhousing pattern, torque converter, and PCM calibration
VIN 3GNFK16Z73G117162:
- Manufacturer: General Motors (Chevrolet)
- Model Year: 2003
- Make: Chevrolet
- Model: Suburban 1500
- Engine Type: 5.3L V8
- Transmission: Automatic
- Trim: Likely LT or LS (based on VIN sequence; confirm with RPO codes for exact trim)
- Country of Origin: Mexico
1075
Specific References
- MPN
- 3GNFK16Z73G117162
🔧 Engine Interchange
Vehicle: 2003 Chevrolet Suburban 1500
Engine Code: 5.3L Vortec V8 (VIN “T”)
Engine Type: Gen III LS-based OHV V8, aluminum block, SFI
🔄 Interchange Compatibility
- 5.3L Vortec LM7 (1999–2007 GMT800)
✅ Direct fit across:- Chevrolet Tahoe, Silverado 1500
- GMC Yukon, Sierra 1500
-
⚙️ Transmission Notes
- Pairs with 4L60-E 4-speed automatic
- Interchangeable across GMT800 platforms
- Verify bellhousing pattern, torque converter, and PCM calibration