OE Quality
60-Day Returns

Nissens 73751 HVAC Heater Core
Overview of Nissens HVAC Heater Core 73751 for Suzuki Sidekick and X-90
The Nissens HVAC Heater Core 73751 is designed specifically for Suzuki Sidekick and X-90 models, providing reliable heating performance. Engineered with durable materials, this heater core ensures efficient heat transfer and long-lasting operation.
- Core material constructed from lightweight aluminum for effective heat dissipation
- Plastic tank material to resist corrosion and reduce weight
- Brazed cooling fins construction enhances thermal conductivity and durability
- Compact core dimensions: 5.59 inches height, 5.59 inches length, and 1.57 inches width
- Includes pipe for straightforward installation and connection
Detailed Product Description
The Nissens HVAC Heater Core 73751 features an aluminum core that promotes efficient heat exchange, essential for maintaining cabin comfort in Suzuki Sidekick and X-90 vehicles. The plastic tank material helps prevent corrosion, extending the lifespan of the heater core. Its brazed cooling fins construction improves heat transfer while maintaining structural integrity under varying temperature conditions. The compact size of 5.59 by 5.59 by 1.57 inches allows for a precise fit within the HVAC system of the specified Suzuki models. Additionally, the included pipe simplifies the installation process, ensuring compatibility with existing HVAC connections.
Common Applications and Issues Addressed
- Restores heating functionality in Suzuki Sidekick and X-90 HVAC systems
- Resolves coolant leaks caused by damaged or corroded heater cores
- Eliminates insufficient cabin heat due to clogged or failing cores
- Prevents overheating issues related to inefficient heat exchange
- Addresses unpleasant odors from leaking coolant inside the vehicle
Installation Notes and Tips
- Ensure compatibility with Suzuki Sidekick and X-90 models before installation
- Drain the cooling system prior to removal of the old heater core to avoid spills
- Handle the aluminum core carefully to prevent damage to fins and pipes
- Verify all hose connections and clamps are secure after installation
- Refill and bleed the cooling system to remove air pockets for optimal performance
Quality Assurance and Warranty Information
The Nissens HVAC Heater Core 73751 is manufactured to meet OEM specifications for Suzuki Sidekick and X-90 vehicles. Constructed with high-quality aluminum and plastic materials, it offers durability and reliable performance. While specific warranty details may vary, Nissens products typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.
This part fits 40 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1998 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1998 | Suzuki | Sidekick | JS Sport | 1.8L | L4 | GAS | N/A | |
| 1998 | Suzuki | Sidekick | JLX Sport | 1.8L | L4 | GAS | N/A | |
| 1998 | Suzuki | Sidekick | JX Sport | 1.8L | L4 | GAS | N/A | |
| 1998 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1998 | Suzuki | X-90 | Base | 1.6L | L4 | GAS | N/A | |
| 1998 | Suzuki | X-90 | SE | 1.6L | L4 | GAS | N/A | |
| 1997 | Suzuki | Sidekick | JS Sport | 1.8L | L4 | GAS | N/A | |
| 1997 | Suzuki | Sidekick | JLX Sport | 1.8L | L4 | GAS | N/A | |
| 1997 | Suzuki | Sidekick | JX Sport | 1.8L | L4 | GAS | N/A | |
| 1997 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1997 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1997 | Suzuki | X-90 | Base | 1.6L | L4 | GAS | N/A | |
| 1996 | Suzuki | Sidekick | JLX Sport | 1.8L | L4 | GAS | N/A | |
| 1996 | Suzuki | Sidekick | JX Sport | 1.8L | L4 | GAS | N/A | |
| 1996 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1996 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1996 | Suzuki | X-90 | Base | 1.6L | L4 | GAS | N/A | |
| 1995 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1995 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1995 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1994 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1994 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1994 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1993 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1993 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1993 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1992 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1992 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1992 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1991 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1991 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1991 | Suzuki | Sidekick | JL | 1.6L | L4 | GAS | N/A | |
| 1991 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1990 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1990 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A | |
| 1990 | Suzuki | Sidekick | JS | 1.6L | L4 | GAS | N/A | |
| 1989 | Suzuki | Sidekick | JX | 1.6L | L4 | GAS | N/A | |
| 1989 | Suzuki | Sidekick | JA | 1.3L | L4 | GAS | N/A | |
| 1989 | Suzuki | Sidekick | JLX | 1.6L | L4 | GAS | N/A |
* 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.