The SPAL EF3503 (VA11-AP8/C-29S) is a 10-inch low-profile performance electric fan engineered for front-mounted pusher (blower) configurations where space behind the radiator core is extremely restricted. Featuring a premium Italian-built brush motor and high-efficiency straight blades, this compact fan provides exceptional air velocity and reliable supplementary or primary cooling.

Common Applications & What People Use It For

Thanks to its slimline design and front-mounting pusher setup, the EF3503 is a versatile problem-solver for performance, classic, and custom builds:

• A/C Condenser Boosters: Mounted directly to the front of air conditioning condensers to increase airflow and drop system pressures during low-speed crawling or heavy idling.
• Auxiliary Transmission & Oil Coolers: Ideal for custom front-mount fluid heat exchangers that require a dedicated pusher fan to control fluid temperatures under load.
• Motorcycles & Powersports: Frequently selected as a high-output cooling upgrade for tightly packed radiator spaces where a puller fan is impossible to clear.
• Custom Turbo Retrofits: The ultimate go-to solution for engine bays where massive turbo manifolds or custom pipework leave zero room between the engine block and the radiator shroud.

Part Number Cross-Reference Matrix

If you're replacing an existing fan, look for these part numbers or designations on your unit:

• SPAL Part Number: 30100374
• SPAL Type: VA11-AP8/C-29S

Key Features & Benefits

• Genuine SPAL Quality: Fully engineered and manufactured in Italy to meet rigorous motorsport and heavy-duty global OEM specifications.
• Slimline Front-Mount Profile: A total depth of just 52mm allows it to sit perfectly flush against the grille side of the radiator core.
• IP68 Dust & Waterproof Motor: The fully sealed motor casing delivers flawless operation and long-term durability against rain, dirt, mud, and road grit.
• Precision Balanced Blades: Straight-blade configuration is optimized to maximize static pressure and force clean airflow deep through dense fin patterns.

EF3503 10" SPAL Thermo Fan Specifications

• Voltage: 12 Volts
• Airflow Direction: Pusher (Blower / Mounts in front of radiator)
• Current Draw: 5.4 Amps (Nominal) / 6.4 Amps (Maximum continuous load under static pressure)
• Airflow Volume: 749 CFM (Max Free Air) / 1070 m³/h
• Blade Type: Straight Blade
• Motor Protection: IP68 Dust & Waterproof

EF3503 Fitting Dimensions

• A (Total Height): 284.5mm (11.20")
• B (Total Width): 268mm (10.55")
• C (Core Diameter): 255mm (10.04")
• D (Total Depth): 52mm (2.05")