Discover top under-dash heater kit options that provide reliable heating and cooling for vehicles without factory A/C. The following selections focus on universal, easy-to-install kits with durable evaporators, compact footprints, and multi-speed blowers. Each listing includes key specs to help compare performance, compatibility, and installation needs across common car, truck, and RV setups.
| Product | Brand | Key Feature | Link |
|---|---|---|---|
| Kit Universal A/C Under Dash Heat & Cool 404-000 DBSL | Generic | 12,700 BTU, 359 CFM, 4-star louvers, 32-pass coil | View |
| Saihisday BEU-404-100 AUTO A/C A Evaporator Kit | Saihisday | 12V, 600 CFM, 3-speed, universal downline | View |
| Saihisday 12V Under Dash A/C Evaporator Kit | Saihisday | 3-speed, 6 ports, 16297 BTU cooling | View |
| UNIVERSAL AIR CONDITIONING KIT FOR CARS 404-000 | Generic | 12,700 BTU, parallel flow condenser | View |
| A/C KIT UNIVERSAL UNDERDASH EVAPORATOR HEAT & COOL 404-0 | Coldmasterinc | 12,200 BTU, 32-pass 4-way, 14×20 condenser | View |
Below is a concise summary of the chosen products for quick comparison. Each entry links to Amazon for full specifications and installation details.
Kit Universal A/C Under Dash Heat & Cool 404-000 DBSL
Evaporator Model: E- 404-000 DBSL H/C. This universal under-dash kit features a 32-pass, four-way coil and a 12,700 BTU capacity with a compact 15¾” L x 12½” D x 6″ H footprint. The set includes a mounting bracket, drain hose, and T, plus a 10′ flex duct of 2½” diameter and a rotative 3-speed blower switch. Compatible with parallel-flow condenser setups and 359 CFM airflow for balanced heating and cooling performance.
Saihisday BEU-404-100 Auto A/C Evaporator Kit
A/C Evaporator & Heater Kit with an electronic thermostat and universal downline compatibility. Cooling capacity of 4107 Kcal/H and heating capacity of 3619 Kcal/H, powered by 12V and 7.6A. It uses 22-pass 4-way AL evaporator cooling and 6-pass 2-way AL evaporator heating, supporting three-speed airflow. This kit is designed to add air conditioning to vehicles lacking factory A/C and aims to deliver flexible climate control with straightforward wiring and mounting options.
Saihisday 12V Under Dash A/C Evaporator Kit
Universal under-dash evaporator designed for adding A/C to vehicles without factory systems. Power: 12V, 7.6A. Heating capacity ~3619 kcal/h and cooling capacity ~4107 kcal/h, with 3-speed airflow and 6 ports for flexible duct routing. Its rugged construction emphasizes durability and compatibility with aftermarket A/C upgrades for cars and light trucks.
DOONARCES 12V Universal Under Dash Heater Kit
4-port under-dash heater kit with speed switch, designed as a complete set for cars and trucks. Features energy-efficient operation with a copper-tube heater core and a high-output blower to deliver quick warmth. Includes 4 ports, mounting brackets, 1 heater, 2 tees, 2 mounting brackets, 1 on/off switch, and hoses/clamps. The kit aims to provide robust heating, defrosting, and demisting capabilities with minimal installation complexity.
UNIVERSAL Air Conditioning Kit For Cars 404-000
Universal under-dash evaporator and heat/cool kit with 404-000 model features. The evaporator E-404-000 DBSL with four black star louvers, 12,700 BTU capacity, and 359 CFM. Includes a parallel-flow condenser, aluminum rails, and O-rings recommended for robust, mid-range cooling and heating in compact installations. Compact dimensions and flexible duct options suit a variety of vehicle dashboards and under-dash bays.
A/C Kit Universal UnderDash Evaporator Heat & Cool 404-0
Under-dash evaporator kit featuring a 404-0 evaporator with 12,200 BTU capacity, 32-pass 4-way cooling/heating. The kit includes a Sanden-type SD508 compressor, a parallel-flow condenser, and a compact 15.75″ W x 12.6″ D x 6.6″ H housing. The system uses a 1.5-ton thermostat and rotary 3-speed blower, with mounting brackets, drain hose, and T included for straightforward installation in a wide range of vehicles.
Buying Guide: Key Considerations For Choosing An Under Dash Heater Kit
- Vehicle compatibility: Check mounting space, dash layout, and available electrical power. Some kits are universal, while others are tailored to specific models or cabin dimensions.
- Cooling vs heating capacity: BTU and CFM ratings indicate heating and cooling performance. Choose a kit with sufficient BTU for your climate and vehicle size, plus adequate airflow to reach all cabin areas.
- Power requirements: Most kits run on 12V systems. Confirm amperage draw and whether the vehicle’s electrical system can handle installation without undue strain.
- Compressor and condenser type: Parallel-flow condensers and micro-tube designs improve efficiency and space utilization. Ensure compatibility with the refrigerant your system uses.
- Installation complexity: Some kits include complete hardware (brackets, hoses, T fittings), while others require additional components or professional wiring. Consider your DIY comfort level.
- Durability and materials: Look for aluminum coils, corrosion-resistant housings, and robust blowers. This impacts longevity and maintenance needs in varying climates.
- Heat and defrost functionality: For winter and fog prevention, prioritize units with reliable defrost/defog performance and effective heating channels.
- Noise and comfort: Blower speed ranges and motor quality affect cabin quietness. Seek units offering multiple speed settings and low noise operation.
- Warranty and support: Check seller warranties and availability of replacement parts or service if compatibility questions arise post-purchase.