OE Quality
60-Day Returns

Global Parts 8231463 HVAC Heater Core - Rear
Reliable HVAC Heater Core for Oldsmobile and Pontiac Vehicles
The Global Parts 8231463 HVAC heater core is designed specifically for select Oldsmobile and Pontiac models, including the Montana, Silhouette, and Trans Sport. Engineered with durable aluminum, this heater core ensures efficient heat transfer and long-lasting performance.
- Specific fit for Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport
- Constructed from corrosion-resistant aluminum material
- Non-adjustable pipe positioning for precise OEM compatibility
- Part number 8231463 for accurate identification and replacement
Durable Aluminum Construction for Efficient Heating
This HVAC heater core from Global Parts is made from aluminum, a material known for its excellent thermal conductivity and resistance to corrosion. The specific fitment to Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport models ensures that the heater core integrates seamlessly with the vehicle’s existing HVAC system. The non-adjustable pipe positioning maintains factory specifications, reducing installation complexity and ensuring reliable operation.
Applications and Common Issues Addressed
- Replaces faulty or leaking heater cores in Oldsmobile Montana and Pontiac Silhouette vehicles
- Restores proper cabin heating performance in Pontiac Trans Sport models
- Eliminates coolant leaks that can cause engine overheating
- Resolves reduced heat output due to clogged or damaged cores
- Prevents interior fogging caused by heater core failures
Installation Notes and Tips
When installing the Global Parts 8231463 heater core, ensure compatibility with the specific Oldsmobile Montana, Pontiac Silhouette, or Pontiac Trans Sport model year. Since the pipe positioning is fixed, no adjustments are necessary, which simplifies the replacement process. It is recommended to flush the cooling system before installation to prevent contamination and extend the life of the new heater core.
Quality Assurance and Warranty Information
Global Parts manufactures this heater core to meet OEM standards for fit and function. The aluminum construction provides durability and resistance to corrosion, contributing to a longer service life. While specific warranty details are not provided, Global Parts products typically come with a limited warranty against defects in materials and workmanship.
| Brand | Global Parts |
| Part Number | 8231463 |
| Universal Or Specific Fit | Specific |
| Adjustable Pipe Positioning | No |
| Material | Aluminum |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2000 | Oldsmobile | Silhouette | 3.4L | V6 | Rear | |
| 2000 | Pontiac | Montana | 3.4L | V6 | Rear | |
| 1999 | Pontiac | Montana | 3.4L | V6 | Rear | |
| 1998 | Pontiac | Trans Sport | 3.4L | V6 | Rear | |
| 1997 | Pontiac | Trans Sport | 3.4L | V6 | Rear |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.