SFY MAP Sensor 1648138 AS1 for Ford, Lincoln & Mercury — Direct-Fit Replacement, Bench-Tested

The SFY MAP (Manifold Absolute Pressure) Sensor 1648138 AS1 is a tested, direct-fit replacement sensor engineered to restore accurate intake manifold pressure readings on compatible Ford, Lincoln and Mercury vehicles.

This replacement MAP sensor is designed as an affordable OEM-style swap for vehicles that originally used part number 1648138 AS1. Each unit is bench-tested before shipping, comes with a one-year coverage window, and is built to meet or exceed original equipment specifications so your engine control system receives reliable pressure input. Before buying, verify vehicle make, model, engine displacement and year to confirm fitment.

What does this MAP sensor do for my vehicle?

The MAP sensor measures the absolute pressure inside the intake manifold so the vehicle’s computer can calculate air density and adjust fuel delivery and ignition timing. Replacing a worn or failing sensor helps the engine control unit receive accurate data again, which can improve drivability and consistency. It does not alter engine performance beyond restoring factory operation.

• Replaces OEM part number 1648138 AS1 for direct compatibility
• Restores correct manifold pressure readings to the engine control unit
• Bench-tested before sale to confirm functionality
• Designed to meet or exceed OEM durability and tolerance standards

Which models and years are compatible with this sensor?

This SFY MAP sensor fits a broad range of Ford, Lincoln and Mercury cars, trucks and vans built mainly between the mid-1980s and late 1990s. Compatibility includes full-size trucks, passenger sedans and select vans—verify your specific model and year against the compatibility list below before ordering. If your vehicle appears on the compatible list, this is intended as a direct-fit replacement.

• Ford: Bronco, F-Series (F-150, F-250, F-350, Super Duty), E-150/250/350, Ranger, Mustang, Taurus, Aerostar, and more (1984–1997)
• Lincoln: Continental, Mark VII, Town Car (1988–1992)
• Mercury: Cougar, Grand Marquis, Sable, Colony Park, Topaz (1986–1991)
• Confirm engine displacement and year to ensure exact fit

How difficult is installation and what should I prepare?

Installation is designed to be straightforward for anyone with basic hand tools and some mechanical familiarity—this sensor is a direct-fit replacement with the same mounting points and connector type as the original. For first-time installers, disconnect the battery, unplug the electrical connector, remove the mounting fastener(s), swap the sensor, and reassemble. If uncertain, consult a repair manual or a qualified technician.

• Tools needed: basic socket set, screwdrivers, gloves
• Procedure: disconnect battery, unplug sensor, remove fastener, install new sensor
• Relearn: some vehicles may require a short idle period for the ECU to recalibrate
• Customer support available from SFY for fitment questions and guidance

What quality checks and warranty cover this part?

Each SFY MAP sensor is tested prior to shipment to ensure it meets performance expectations and electrical parameters consistent with OEM units. The product includes a one-year coverage window for defects under normal use, and SFY provides customer assistance if you have compatibility or installation questions. This replacement is intended as an OEM-equivalent component, not a performance modification.

• Pre-sale functional testing to confirm sensor output and response
• Constructed to meet or exceed OEM tolerances for durability
• One-year coverage for defects under normal operational conditions
• SFY customer support available within 24 hours for inquiries

Who is this for: The SFY MAP Sensor 1648138 AS1 is for owners, mechanics and restoration specialists working on Ford, Lincoln or Mercury vehicles from the mid‑1980s through the late‑1990s who need a dependable, tested OEM-style replacement. Choose this part if your vehicle’s diagnostic trouble codes or symptoms point to a faulty MAP sensor, if you want a direct-fit swap with pre-sale testing, or if you prefer a sourced replacement that mirrors original equipment specifications. Always confirm your vehicle’s year, model and engine displacement before purchase to ensure proper fitment.