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BMW 325I Cooling & Heating
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Derale PWM Adjustable Fan Controller Kits
Enhance your engine's performance with a Derale PWM adjustable fan controller kit. Utilizing cutting-edge technology, these Derale Performance fan controllers constantly adjust fan speed to keep the desired engine temperature that can be preset. Additional features include: * Constantly adjust fan speed to maintain the desired temperature * Control multiple electric fans up to 65 amp capacity * Finned aluminum housing * Automatic resetting circuit breaker * Air conditioning override circuit built-in
( 23 )
$343.97
Derale High-Output Single RAD Fans
Derale high-output single RAD fans feature a versatile, state-of-the-art symmetrical design; high-output, 265-watt, 2-speed motors (where applicable); and ultra-quiet, patented skewed blades for maximum airflow. Derale Performance offers these fans in a variety of sizes in standard (push-through plastic rod mount) and premium (patented ratchet mount) styles.
( 243 )
$219.69
Derale Deluxe Adjustable Fan Controllers with Radiator Probes
Derale adjustable electric fan controllers with push-in radiator probes are designed to activate up to two fans with a total maximum draw of 25 amps. These redesigned fan control kits adjust fan activation between 150 and 240 degrees F with turn-off preset at 10 degrees F lower than turn-on, making them well suited for racing and towing applications. The probe sensors fit in the fins of the radiator and kits include relay wire harness, electrical connectors, and A/C override circuit as well as ground circuit relay. Operate one 25 amp fan or two fans with a combined draw of 25 amps or less with the easy installation of Derale Performance adjustable electric fan controllers.
( 125 )
$94.58
Derale Deluxe Adjustable Controllers with Pipe Threaded Probes
Derale deluxe adjustable fan controllers with pipe-threaded probes are installed in water jackets in the intake manifold or engine block. They allow fan activation to adjust between 150 and 240 degrees F. These fan controllers are suitable for race and street rod applications. For underhood cooling components, trust the expertise of Derale Performance.
( 116 )
$94.58
Derale Stacked Plate Fluid Coolers
Derale stacked plate fluid coolers have more surface area than tube and fin coolers, giving you more efficient heat extraction. The units feature embossed turbulator plates and durable, brazed aluminum construction. They are equipped with AN male ports and are also available with an OEM-spec, high-temperature oil hose with swedged hose ends. Derale Performance coolers have pre-drilled mounting brackets and include hardware where noted.
( 114 )
$139.88
Hayden Electric Fan Controls
Make sure that your cooling fans turn off and on with Hayden electric fan control kits. These Hayden automotive electric fan kits are designed to allow your electric fan to turn off and on at certain temperatures. Hayden offers these electric fan kits for single or dual fan applications. All of these Hayden electric fan kits are compatible with their own fans and original equipment cooling fans. They include all necessary wiring, relays, circuit breakers, sending units, hardware for installation, and detailed instructions.
( 194 )
$27.99
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$37.99
Hayden Electric Fans
As a primary cooling source, Hayden Automotive electric fans slightly increase horsepower and fuel economy when replacing fan clutches and fan assemblies. These thin fans are manufactured with reversible blades for pusher and puller operation. Hayden uses high-quality, long-life electric motors to ensure performance and durability. They come available in 10, 12, 14, and 16 in. diameters.
( 12 )
$69.99
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$78.99
Derale 9000 Series Fin and Plate Transmission Coolers
Derale 9000 Series fin and plate transmission coolers are designed with 1 1/4 in. wide turbulator plates to maximize cooling and minimize pressure drops. They also feature sturdy furnace-brazed aluminum construction. Outstanding protection for your vehicle's key components--that's the job of Derale Performance!
( 77 )
$114.58
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$125.25
Maradyne Mach Two Series Electric Fans
Maradyne Mach Two series truck electric fans feature dual 225 W high performance IP68 sealed motors attached to dual 11 in. diameter 5-blade fans to put out over 2,500 cfm of airflow. They have all glass-filled nylon construction and include dual harnesses for an easier installation. The fans are available with different mounting bracket positions, so you can match up with your radiator mounting style.
( 17 )
$311.05
Derale Tornado Universal Fans
You'll be blown away with the airflow and options available from Derale Tornado universal fans. Derale offers these electric, high-performance primary cooling fans in a choice of sizes and blade-styles to fill almost any application from your daily driver to your race car, off-road ATV, and even your computer and audio equipment! After all, after 60 years in the business, who would be better to cool all your moving parts than Derale and the whirlwind performance of their Tornado fans? Most are reversible and all are reliable, efficient, and ultra-quiet. Not only do they offer single fans, but also dual fan models for those of you needing even more airflow. Fans are available with standard nylon mounting kits or premium mounting kits that include switch, fuse, and wire connections. Some can be purchased with dual probe fan controller kit, as well.
( 76 )
$165.26
Hayden Electric Fan Adjustable Thermostat Kits
Hayden electric fan adjustable thermostat kits allow for a wide range of temperature adjustments for your electric fan. To help prevent your radiator from overheating, just select your fan to the temperature you want it at so it automatically goes into cool-mode. For easy installation, the sensor probe can either fit in the water-neck or between the fins of your radiator. Get your cool on with electric fan adjustable thermostat kits from Hayden!
( 84 )
$18.99
CSF Racing Radiators
CSF racing radiators feature the most advanced and efficient radiator cores in the industry. Offered for both vehicle-specific and universal applications, they use innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. Specially engineered tubes in the shape of a "B" are carefully formed and then brazed over the seam. CSF is able to use thinner and lighter aluminum because this design is stronger than normal welded "O" shape tubes. With the inlet in the middle of a seam-brazed tube, the surface area of the tubes is increased approximately 15 percent over regular tubes. With CSF's B-tubes you get dual liquid laminar flow and the efficiency of two smaller tubes vs. one large tube in the same space. High-efficiency, multi-louvered fins are precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in CSF's wind-tunnel lab. CSF offers two all-aluminum end-tank designs to match any style and performance needs. CSF 7000 Series racing radiators have OE-style radial tanks that are flat, rounded, and welded together. Perfect for the customer who likes the sleek and smooth look, and wants to display the intricate welding. CSF deep-drawn end tanks are stamped to the same geometry of OE plastic end tanks. The only high performance manufacture to feature this advanced radiator technology; CSF deep-drawn end tanks feature less welding, and are generally considered the strongest tanks in the industry. Additional features of CSF racing radiators include: * Finished with CSF's Show-Stopper mirror polish process * CAD/CAM designed * Racing-style aluminum drain plug * Brazed in a controlled atmosphere brazing (CAB) furnace—the preferred process for aluminum * ISO 9001/9002 certification * Military-grade (special clad) aluminum used for tubes, fins, and headers * Plates and side brackets meet JIS 3003 specifications * Privately owned factories with full in-house tool rooms * CNC-machined fittings * TIG welded
( 38 )
$379.00
Maradyne Pacesetter Medium-Profile Electric Fans
Maradyne Pacesetter medium-profile electric fans deliver economic efficiency for most any vehicle. Whether your vehicle is high performance or a daily driver, these S-blade designed fans will meet your needs. They are reversible, quiet, and feature glass-filled nylon construction with non-vented, medium-duty motors. They are available in a choice of diameters and each includes 90 degree mounting feet and a pigtail connector. Maradyne Pacesetter medium-profile electric fans offer a perfect fit for many projects and wallets.
( 2 )
$91.73
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$106.53
Hayden Super Duty Electric Fans
Hayden Automotive is proud to introduce a new performance series of electric fans to their current offering—Super Duty electric fans. These high-quality electric fans are perfect for performance enthusiasts and off-roaders who want upgraded cooling performance. With four fan sizes available in your choice of either a pusher or puller design, there's a Hayden Super Duty electric fan that'll fit your performance cooling needs. Super Duty electric fan features: * Premium quality Italian design and manufactured construction * Available in both pusher or puller designs, in a choice of 9 in., 12 in., 14 in. and 16 in. diameters (please specify model when placing your order) * Compatible with all Hayden fan controllers * IP68 waterproof and dust proof rating * Straight blade design for maximum airflow performance * Includes mounting hardware for ease of installation
Not Yet Reviewed
$95.99
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$118.99
Derale High-Amperage Adjustable Fan Controllers
Derale high-amperage adjustable fan controllers are designed to control your electric fan the right way. They feature a finned, die-cast aluminum housing with a bright finish, an automatic resetting circuit breaker, a built-in air conditioning override circuit, wiring, mounting hardware, and instructions. The Derale Performance high-amperage adjustable fan controllers are available for either single or dual fan applications and come with your choice of a push-in or thread-in radiator probe.
( 156 )
$165.15
Four Seasons Cooling Fan Temperature Switches
Four Seasons cooling fan temperature switches are designed to exceed OEM specifications for dependable, accurate, maintenance-free operation. These replacement switches are available in many sizes and configurations to fit a wide range of cars spanning several decades.
( 6 )
$40.99
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$44.99
CSF Radiators
CSF radiators are offered in the industry's widest variety, servicing thousands of vehicle-specific and universal applications … including every brand from Acura to Volkswagen. Whether your radiator is copper-brass, plastic-copper-brass, plastic-aluminum, or all-aluminum, CSF has you covered with the same materials and style as OE. CSF manufactures the highest quality aftermarket replacement radiators, with the strongest and most efficient components available in the industry. All CSF radiators undergo a rigorous testing process in their state-of-the-art testing lab. CSF's procedures and requirements set the bar for cooling system reliability and performance: * Individually leak tested * Vibration-cycle tested * Thermal-cycle tested * Wind tunnel tested for optimal radiator core cooling efficiency * Burst pressure and impulse-cycle tested for strength * Salt spray tested for corrosion protection * 10 ft. box drop test to ensure packaging protection * 30-point fitment inspection on critical dimensions to ensure drop-in fit with no modifications (where applicable)
( 108 )
$90.99
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$114.99
Four Seasons Electric Fan Kits
Get the chill factor for better engine performance with Four Seasons electric fan kits. These drop-in replacements have original equipment quality and connectors for a perfect fit that you do yourself, saving yourself time and money. These fans are made of durable, heavy-duty plastic to provide quiet operation and dependable service. Keep your engine cool to perform as it should with Four Seasons electric fan kits.
( 19 )
$67.99
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$146.99
Derale Single-Stage Fan Controllers
Derale single-stage fan controllers can be installed in the radiator or a threaded location. They activate fans at a specific temperature and turn them off at a preset temperature. The controllers are available for single or dual fans, and specific types will work on vehicles equipped with air conditioning. For top-quality underhood cooling accessories, trust the expertise of Derale Performance.
( 114 )
$50.15
Sherman Radiator Core Supports
Sherman radiator core supports are engineered to provide an easy fit and finish to give your radiator a better foundation. Securing your radiator and keeping it in its proper place provides better performance and lasting service life. Mount your radiator solidly with Sherman radiator core supports.
( 48 )
$38.99
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$131.99
On Sale
Mishimoto Performance Radiators
Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto. Key features and benefits of Mishimoto performance radiators include: * Available for universal and exact fit applications (no cutting or modifications required) * All-aluminum construction for optimal heat dissipation, improved strength, and reliability * Increased cooling capacity due to their massive core size * 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints * Available in various sizes with 2-row or 3-row cores * TIG-welded for clean, strong welds and increased durability * Magnetic drain plugs capture metallic debris or fragments * Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency * Automatic transmission and accessory coolers included where applicable
( 336 )
$288.76
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$399.95
Four Seasons Cooling Fan Assemblies
Maintain the chill factor of your import or domestic car with a Four Seasons cooling fan assembly. These units meet or exceed OEM standards and are designed for quiet, dependable operation. Instead of buying pieces individually to repair your non-working radiator cooling system, save time and money with a drop-in replacement from Four Seasons. The fan motor, blades, and shroud have original equipment connectors, and no hard wiring is required to make installation a breeze! The single-fan assemblies are available in a variety of configurations for fitment with specific vehicle applications.
( 19 )
$105.99
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$603.99
Mishimoto X-Line Radiators
Upgrade your cooling system with Mishimoto X-Line radiators! These lightweight, triple-core radiators enhance the performance and cooling efficiency of your engine, whether it's a daily driver or a race application. X-Line radiators feature 100 percent brazed aluminum construction and polished end tanks, and each includes a Mishimoto high-pressure 1.3 bar radiator cap. The units are available in both crossflow and downflow styles, as well as a variety of sizes, for fitment on countless makes/models. Mishimoto X-Line radiators help your engine reach its full potential!
( 69 )
$599.95
EMP Stewart Performance Mechanical Water Pumps
These EMP Stewart performance mechanical water pumps are designed to keep your engine cool without robbing you of excessive power. EMP Stewart has spent years devoted to developing and designing the best and most efficient water pumps available for street and race cars. Their optimized impeller design, improved water passages, and heavy-duty bearings result in water pumps capable of pumping more water with less parasitic loss than factory pumps. Whether you are looking for an aftermarket replacement pump or need the increased flow for your race car, EMP Stewart has you covered with these performance mechanical water pumps.
( 2 )
$215.95
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