Used OEM 2003 Mercury A3 Engine Block
Connect With Recyclers Selling Engine Block For 2003 Mercury A3
Grade A Condition
Low Miles. Excellent Working Condition.
90 Day Warranty
STARTING at $50 Delivered
Grade B+ Condition
Average Miles. Good Working Condition.
90 days Warranty
STARTING at $25 Delivered
Core Grade Condition
Rebuildable Core. Suitable for Rebuilding.
As-Is Condition
STARTING at $10 Delivered
Part Description
Need a genuine OEM replacement 2003 Mercury A3 Engine Block? UsedPart.us offers premium used Mercury Engine Block parts with fast next-day shipping to all 48 contiguous states. Each authentic Mercury A3 Engine Block undergoes comprehensive testing and certification in our state-of-the-art facility, guaranteeing OEM performance and perfect fitment. Find exact-match 2003 Mercury A3 replacement parts from our nationwide network of certified automotive recyclers and trusted suppliers. With expertise in both domestic and import vehicles, our 30+ years of experience backs every Engine Block with a 100% satisfaction guarantee. Call our specialists at 800-646-4790 for immediate assistance with your 2003 Mercury A3 Engine Block requirements.
Quality Assurance
Every certified Mercury Engine Block undergoes our rigorous 27-point inspection and testing protocol to guarantee premium OEM quality standards. This genuine 2003 Mercury A3 Engine Block has been meticulously examined by our ASE-certified master technicians who verify its original equipment condition, complete functionality, and exact vehicle compatibility. We perform comprehensive electronic diagnostics where applicable and thoroughly inspect all components for wear, damage, and optimal operation before certification for sale.
Warranty Information
This genuine 2003 Mercury A3 Engine Block includes our industry-leading 90-day warranty covering both complete functionality and exact fitment. If your Mercury Engine Block experiences any issues, we guarantee a hassle-free replacement or full purchase price refund. Premium extended warranty options of 6 months and 1 year are available for additional protection and peace of mind. Our dedicated customer success team is available 7 days a week to assist with any warranty claims or concerns about your Mercury A3 Engine Block.
Shipping Details
We provide expedited, reliable shipping nationwide with next-day delivery available for most Mercury A3 parts. Your 2003 Mercury A3 Engine Block will be professionally inspected, cleaned, and securely packaged to ensure safe, damage-free transit. Most orders ship within 1 business day, and you'll receive real-time tracking information via email once your Engine Block is dispatched. We partner with premium shipping carriers and include comprehensive insurance on all Mercury Engine Block shipments for complete buyer protection.
Technical Specifications
Vehicle Compatibility
- Primary Fit: 2003 Mercury A3
- Part Type: Engine Block
- Position: OEM Original Location
- Condition: Used - Tested & Verified
Part Details
- Origin: Original Equipment Manufacturer (OEM)
- Testing: Full Functionality Verified
- Quality Grade: A-Grade Used Part
- Warranty Status: 90-Day Coverage
Related Parts
Other Parts for This Vehicle
- 2003 Mercury A3 AC Compressor
- 2003 Mercury A3 AC Condenser
- 2003 Mercury A3 AC Blower Motor
- 2003 Mercury A3 AC Control Panel
- 2003 Mercury A3 AC Evaporator
- 2003 Mercury A3 AC Evaporator Housing
- 2003 Mercury A3 AC Hoses
- 2003 Mercury A3 AC Receiver
- 2003 Mercury A3 AC Selector
- 2003 Mercury A3 AC Wire Harness
- 2003 Mercury A3 Accelerator Parts
- 2003 Mercury A3 Accessory Holders
- 2003 Mercury A3 Air Bag
- 2003 Mercury A3 Air Cleaner
- 2003 Mercury A3 Air Conditioning Condenser
- 2003 Mercury A3 Air Conditioning Evaporator
- 2003 Mercury A3 Air Conditioning Hoses
- 2003 Mercury A3 Air Flow Meter
- 2003 Mercury A3 Air Injection Pump
- 2003 Mercury A3 Air Shutter
- 2003 Mercury A3 Air Tube Resonator
- 2003 Mercury A3 Alternator
- 2003 Mercury A3 Amplifier
- 2003 Mercury A3 Antenna
- 2003 Mercury A3 Anti Lock Brake Parts
- 2003 Mercury A3 Anti-lock Brake Pts
- 2003 Mercury A3 Ash Tray
- 2003 Mercury A3 Automatic Transmission
- 2003 Mercury A3 Axle Shaft
- 2003 Mercury A3 Axle Actuator
- 2003 Mercury A3 Axle Assembly Front
- 2003 Mercury A3 Axle Assembly Rear
- 2003 Mercury A3 Axle Flange
- 2003 Mercury A3 Axle Housing
- 2003 Mercury A3 Back Glass
- 2003 Mercury A3 Back Glass Regulator
- 2003 Mercury A3 Backing Plate Front
- 2003 Mercury A3 Backing Plate Rear
- 2003 Mercury A3 Backup Camera
- 2003 Mercury A3 Backup Lamp
- 2003 Mercury A3 Battery
- 2003 Mercury A3 Battery Tray
- 2003 Mercury A3 BCM
- 2003 Mercury A3 Body Control Module
- 2003 Mercury A3 Bed Liner
- 2003 Mercury A3 Bell Housing
- 2003 Mercury A3 Belt Tensioner
- 2003 Mercury A3 Blower Motor
- 2003 Mercury A3 Body Parts Misc
- 2003 Mercury A3 Body Sensor
- 2003 Mercury A3 Body Wire Harness
- 2003 Mercury A3 Brain Box
- 2003 Mercury A3 Brake Caliper
- 2003 Mercury A3 Brake Master Cylinder
- 2003 Mercury A3 Brake Proportioning Valve
- 2003 Mercury A3 Brake Rotor Front
- 2003 Mercury A3 Brake Rotor Rear
- 2003 Mercury A3 Brake Shoes
- 2003 Mercury A3 Brakes Front
- 2003 Mercury A3 Brakes Rear
- 2003 Mercury A3 Bumper Assy Front
- 2003 Mercury A3 Bumper Assy Rear
- 2003 Mercury A3 Bumper Assembly Rear
- 2003 Mercury A3 Bumper Cover Fr
- 2003 Mercury A3 Bumper Cover Rr
- 2003 Mercury A3 Bumper End Cap
- 2003 Mercury A3 Bumper Filler Panel
- 2003 Mercury A3 Bumper Front
- 2003 Mercury A3 Bumper Guard Front
- 2003 Mercury A3 Bumper Guard Rear
- 2003 Mercury A3 Bumper Reinforcement Front
- 2003 Mercury A3 Bumper Reinforcement Rear
- 2003 Mercury A3 Bumper Shock
- 2003 Mercury A3 Cab Clip
- 2003 Mercury A3 Caliper
- 2003 Mercury A3 Camshaft
- 2003 Mercury A3 Camshaft Housing
- 2003 Mercury A3 Carburetor
- 2003 Mercury A3 Cargo Cover
- 2003 Mercury A3 Carpet Front
- 2003 Mercury A3 Carpet Rear
- 2003 Mercury A3 Carrier
- 2003 Mercury A3 Carrier Case
- 2003 Mercury A3 Catalytic Converter
- 2003 Mercury A3 Center Cap
- 2003 Mercury A3 Center Pillar
- 2003 Mercury A3 Chassis Mounts
- 2003 Mercury A3 Chassis Sensor
- 2003 Mercury A3 Circuit Boards
- 2003 Mercury A3 Clock
- 2003 Mercury A3 Clock Spring
- 2003 Mercury A3 Clutch
- 2003 Mercury A3 Clutch Disc
- 2003 Mercury A3 Clutch Master Cylinder
- 2003 Mercury A3 Clutch Slave Cylinder
- 2003 Mercury A3 Coil Spring
- 2003 Mercury A3 Coil/Air Spring
- 2003 Mercury A3 Coil Ignitor
- 2003 Mercury A3 Column Switch
- 2003 Mercury A3 Computer
- 2003 Mercury A3 Console
- 2003 Mercury A3 Console Front
- 2003 Mercury A3 Console Rear
- 2003 Mercury A3 Convertible Boot
- 2003 Mercury A3 Convertible Top Lift
- 2003 Mercury A3 Convertible Top Motor
- 2003 Mercury A3 Coolant Pump
- 2003 Mercury A3 Coolant Reservoir
- 2003 Mercury A3 Cooling Fan
- 2003 Mercury A3 Cup Holders
- 2003 Mercury A3 CV Axle
- 2003 Mercury A3 Cylinder Block
- 2003 Mercury A3 Cylinder Head
- 2003 Mercury A3 Dash Assembly
- 2003 Mercury A3 Dash Bezel
- 2003 Mercury A3 Dash Pad
- 2003 Mercury A3 Dash Panel
- 2003 Mercury A3 Dash Wire Harness
- 2003 Mercury A3 Decklid Tailgate
- 2003 Mercury A3 Differential
- 2003 Mercury A3 Differential Assembly
- 2003 Mercury A3 Differential Flange
- 2003 Mercury A3 Differential Housing
- 2003 Mercury A3 Differential Side Gears
- 2003 Mercury A3 Distributor
- 2003 Mercury A3 Door
- 2003 Mercury A3 Door Assembly Fr
- 2003 Mercury A3 Door Assy Rr Side
- 2003 Mercury A3 Door Front
- 2003 Mercury A3 Door Glass Front
- 2003 Mercury A3 Door Glass Rear
- 2003 Mercury A3 Door Handle
- 2003 Mercury A3 Door Handle Exterior
- 2003 Mercury A3 Door Handle Front Driver
- 2003 Mercury A3 Door Handle Front Passenger
- 2003 Mercury A3 Door Handle Interior
- 2003 Mercury A3 Door Handle Rear Driver
- 2003 Mercury A3 Door Handle Rear Passenger
- 2003 Mercury A3 Door Hinge Front
- 2003 Mercury A3 Door Hinge Rear
- 2003 Mercury A3 Door Molding Front
- 2003 Mercury A3 Door Molding Rear
- 2003 Mercury A3 Door Rear Driver
- 2003 Mercury A3 Door Vent Glass Front Driver
- 2003 Mercury A3 Door Vent Glass Front Passenger
- 2003 Mercury A3 Door Vent Glass Rear Driver
- 2003 Mercury A3 Door Vent Glass Rear Passenger
- 2003 Mercury A3 Door Window Crank Front
- 2003 Mercury A3 Door Window Crank Rear
- 2003 Mercury A3 Door Window Reg Fr
- 2003 Mercury A3 Dr Window Reg Rr
- 2003 Mercury A3 Drag Link
- 2003 Mercury A3 Drive Shaft Front
- 2003 Mercury A3 Drive Shaft Rear
- 2003 Mercury A3 Driveshaft
- 2003 Mercury A3 Drivetrain Sensor
- 2003 Mercury A3 ECM
- 2003 Mercury A3 ECU
- 2003 Mercury A3 EGR Valve
- 2003 Mercury A3 Electric Door Motor
- 2003 Mercury A3 Electric Door Switch
- 2003 Mercury A3 Electronic Control Module
- 2003 Mercury A3 Electronic Pts Msc
- 2003 Mercury A3 Emergency Brake Parts
- 2003 Mercury A3 Eng/Motor Cont Mod
- 2003 Mercury A3 Engine
- 2003 Mercury A3 Engine Assembly
- 2003 Mercury A3 Engine Computer
- 2003 Mercury A3 Engine Control Module
- 2003 Mercury A3 Engine Cover
- 2003 Mercury A3 Engine Mounts
- 2003 Mercury A3 Engine Oil Cooler
- 2003 Mercury A3 Engine Parts Misc
- 2003 Mercury A3 Engine Pulley
- 2003 Mercury A3 Engine Wire Harness
- 2003 Mercury A3 Evaporator Core
- 2003 Mercury A3 Exhaust Assembly
- 2003 Mercury A3 Exhaust Cross Pipe
- 2003 Mercury A3 Exhaust Fluid Pump
- 2003 Mercury A3 Exhaust Fluid Tank
- 2003 Mercury A3 Exhaust Manifold
- 2003 Mercury A3 Exhaust Pipe
- 2003 Mercury A3 Exhaust Resonator
- 2003 Mercury A3 Fan Blade
- 2003 Mercury A3 Fan Clutch
- 2003 Mercury A3 Fasteners
- 2003 Mercury A3 Fender
- 2003 Mercury A3 Fender Driver
- 2003 Mercury A3 Fender Passenger
- 2003 Mercury A3 Fender Flare
- 2003 Mercury A3 Fender Molding
- 2003 Mercury A3 Filter Water Separator
- 2003 Mercury A3 Floor Pan
- 2003 Mercury A3 Floor Shifter
- 2003 Mercury A3 Flex Plate
- 2003 Mercury A3 Flywheel
- 2003 Mercury A3 Flywheel/Flex Plate
- 2003 Mercury A3 Fob Remote
- 2003 Mercury A3 Fog Light
- 2003 Mercury A3 Frame
- 2003 Mercury A3 Frame Front
- 2003 Mercury A3 Frame Horn
- 2003 Mercury A3 Frame Rails
- 2003 Mercury A3 Front Axle Beam
- 2003 Mercury A3 Front Brakes
- 2003 Mercury A3 Front Bumper Assembly
- 2003 Mercury A3 Front Bumper Cover
- 2003 Mercury A3 Front Bumper Reinforcement
- 2003 Mercury A3 Front Clip
- 2003 Mercury A3 Front Door
- 2003 Mercury A3 Front Door Glass
- 2003 Mercury A3 Front Door Moulding
- 2003 Mercury A3 Front Door Trim Panel
- 2003 Mercury A3 Front Door Window Regulator
- 2003 Mercury A3 Front End Assembly
- 2003 Mercury A3 Front Lamp
- 2003 Mercury A3 Front Lamp Driver
- 2003 Mercury A3 Front Lamp Passenger
- 2003 Mercury A3 Front Lower Control Arm
- 2003 Mercury A3 Front Seat
- 2003 Mercury A3 Front Spindle Knuckle
- 2003 Mercury A3 Fuel Cap
- 2003 Mercury A3 Fuel Cell
- 2003 Mercury A3 Fuel Filler Door
- 2003 Mercury A3 Fuel Filler Neck
- 2003 Mercury A3 Fuel Gauge
- 2003 Mercury A3 Fuel Inject Parts
- 2003 Mercury A3 Fuel Injector
- 2003 Mercury A3 Fuel Injector Pump
- 2003 Mercury A3 Fuel Injector Rail
- 2003 Mercury A3 Fuel Lines
- 2003 Mercury A3 Fuel Pacer System
- 2003 Mercury A3 Fuel Pressure Regulator
- 2003 Mercury A3 Fuel Pump
- 2003 Mercury A3 Fuel Sending Unit
- 2003 Mercury A3 Fuel Tank
- 2003 Mercury A3 Fuel Tank Sender
- 2003 Mercury A3 Fuel Tank Sending Unit
- 2003 Mercury A3 Fuel Vapor Canister
- 2003 Mercury A3 Fuse Box
- 2003 Mercury A3 Fuse Box Cabin
- 2003 Mercury A3 Fuse Box Engine
- 2003 Mercury A3 Gas Tank
- 2003 Mercury A3 Gas Tank Gauge
- 2003 Mercury A3 Generator
- 2003 Mercury A3 Glove Box
- 2003 Mercury A3 GPS Information Screen
- 2003 Mercury A3 GPS Screen
- 2003 Mercury A3 Grille
- 2003 Mercury A3 Grille Assembly
- 2003 Mercury A3 Grille Insert
- 2003 Mercury A3 Harmonic Balancer
- 2003 Mercury A3 Hatchback Strut
- 2003 Mercury A3 Header Panel
- 2003 Mercury A3 Header Panel Assembly
- 2003 Mercury A3 Headlamp Assembly
- 2003 Mercury A3 Headlamp Driver
- 2003 Mercury A3 Headlamp Motor
- 2003 Mercury A3 Headlamp Washer
- 2003 Mercury A3 Headlamp Wiper
- 2003 Mercury A3 Headlight
- 2003 Mercury A3 Headlight Assembly
- 2003 Mercury A3 Headliner
- 2003 Mercury A3 Headrest
- 2003 Mercury A3 Heads Up Display
- 2003 Mercury A3 Heater Assembly
- 2003 Mercury A3 Heater Core
- 2003 Mercury A3 Heater Housing
- 2003 Mercury A3 Hood
- 2003 Mercury A3 Hood Hinge
- 2003 Mercury A3 Hood Strut
- 2003 Mercury A3 Horn
- 2003 Mercury A3 Hub
- 2003 Mercury A3 Hub Cap
- 2003 Mercury A3 Idler Arm
- 2003 Mercury A3 Ignition Switch
- 2003 Mercury A3 Independent Rear Suspension
- 2003 Mercury A3 Info GPS TV Screen
- 2003 Mercury A3 Inner Fender
- 2003 Mercury A3 Inner Fender Liner
- 2003 Mercury A3 Instrument Cluster
- 2003 Mercury A3 Intake Manifold
- 2003 Mercury A3 Intercooler
- 2003 Mercury A3 Interior Mirror
- 2003 Mercury A3 Interior Rear View Mirror
- 2003 Mercury A3 Jack
- 2003 Mercury A3 Key Set
- 2003 Mercury A3 Keys/Latches/Locks
- 2003 Mercury A3 Knee Assembly Front
- 2003 Mercury A3 Knee Front
- 2003 Mercury A3 Knuckle Front
- 2003 Mercury A3 Knuckle Support
- 2003 Mercury A3 Lamp Wiring Harness
- 2003 Mercury A3 Latch Set
- 2003 Mercury A3 Leaf Spring Front
- 2003 Mercury A3 Leaf Spring Rear
- 2003 Mercury A3 License Lamp
- 2003 Mercury A3 Lid Gate Molding
- 2003 Mercury A3 Lid Motor
- 2003 Mercury A3 Lock Actuator
- 2003 Mercury A3 Locking Hubs
- 2003 Mercury A3 Lower Cntrl Arm Fr
- 2003 Mercury A3 Lower Control Arm Front
- 2003 Mercury A3 Lower Control Arm Rear
- 2003 Mercury A3 Luggage Rack
- 2003 Mercury A3 Manual Transmission
- 2003 Mercury A3 Mass Air Flow Sensor
- 2003 Mercury A3 Mirror
- 2003 Mercury A3 Mirror Driver
- 2003 Mercury A3 Mirror Passenger
- 2003 Mercury A3 Misc Parts
- 2003 Mercury A3 Oil Filter Adapter
- 2003 Mercury A3 Oil Pan
- 2003 Mercury A3 Oil Pump
- 2003 Mercury A3 Overdrive Unit
- 2003 Mercury A3 Owners Manual
- 2003 Mercury A3 Parcel Shelf
- 2003 Mercury A3 Park Lamp Driver
- 2003 Mercury A3 Park Lamp Passenger
- 2003 Mercury A3 Parking Brake
- 2003 Mercury A3 PCM
- 2003 Mercury A3 Pedal Brake
- 2003 Mercury A3 Pedal Clutch
- 2003 Mercury A3 Pickup Bed
- 2003 Mercury A3 Pickup Box Panel
- 2003 Mercury A3 Pickup Cab
- 2003 Mercury A3 Pickup Cab Corner
- 2003 Mercury A3 Piston
- 2003 Mercury A3 Pitman Arm
- 2003 Mercury A3 Plow Frame
- 2003 Mercury A3 Power Brake Booster
- 2003 Mercury A3 Power Steering Assembly
- 2003 Mercury A3 Power Steering Control Valve
- 2003 Mercury A3 Power Steering Cooler
- 2003 Mercury A3 Power Steering Cylinder
- 2003 Mercury A3 Power Steering Hose
- 2003 Mercury A3 Power Steering Pump
- 2003 Mercury A3 Power Steering Rack
- 2003 Mercury A3 Power Steering Reservoir
- 2003 Mercury A3 Power Window Motor
- 2003 Mercury A3 Powertrain Control Module
- 2003 Mercury A3 Pressure Plate
- 2003 Mercury A3 PS Pump/Motor
- 2003 Mercury A3 Quarter Extension
- 2003 Mercury A3 Quarter Glass
- 2003 Mercury A3 Quarter Glass Driver
- 2003 Mercury A3 Quarter Glass Passenger
- 2003 Mercury A3 Quarter Molding
- 2003 Mercury A3 Quarter Panel
- 2003 Mercury A3 Quarter Panel Assembly
- 2003 Mercury A3 Radiator
- 2003 Mercury A3 Radiator Baffle
- 2003 Mercury A3 Radiator Condenser Fan Motor
- 2003 Mercury A3 Radiator Core Support
- 2003 Mercury A3 Radiator Fan Blade
- 2003 Mercury A3 Radiator Fan Motor
- 2003 Mercury A3 Radiator Shroud
- 2003 Mercury A3 Radiators
- 2003 Mercury A3 Radio
- 2003 Mercury A3 Radio Audio
- 2003 Mercury A3 Radius Arm Front
- 2003 Mercury A3 Rear Brakes
- 2003 Mercury A3 Rear Bumper Assembly
- 2003 Mercury A3 Rear Bumper Cover
- 2003 Mercury A3 Rear Bumper Reinforcement
- 2003 Mercury A3 Rear Clip
- 2003 Mercury A3 Rear Door
- 2003 Mercury A3 Rear Door Glass
- 2003 Mercury A3 Rear Door Moulding
- 2003 Mercury A3 Rear Door Switch
- 2003 Mercury A3 Rear Door Trim Panel
- 2003 Mercury A3 Rear Door Vent Glass
- 2003 Mercury A3 Rear Door Window Regulator
- 2003 Mercury A3 Rear Hatch
- 2003 Mercury A3 Rear Liftgate
- 2003 Mercury A3 Rear Lower Control Arm
- 2003 Mercury A3 Rear Stub Axle
- 2003 Mercury A3 Rear Top Section
- 2003 Mercury A3 Relay Electrical
- 2003 Mercury A3 Retainer
- 2003 Mercury A3 Ring Gear
- 2003 Mercury A3 Rocker Arm
- 2003 Mercury A3 Rocker Panel
- 2003 Mercury A3 Rocker Panel Molding
- 2003 Mercury A3 Roll Bar
- 2003 Mercury A3 Roof
- 2003 Mercury A3 Roof Assembly
- 2003 Mercury A3 Roof Glass
- 2003 Mercury A3 Roof Motor
- 2003 Mercury A3 Running Board
- 2003 Mercury A3 Seat Belt Assm
- 2003 Mercury A3 Seat Belt Front
- 2003 Mercury A3 Seat Belt Motor
- 2003 Mercury A3 Seat Belt Rear
- 2003 Mercury A3 Seat Front
- 2003 Mercury A3 Seat Motor
- 2003 Mercury A3 Seat Rear
- 2003 Mercury A3 Seat Track Front
- 2003 Mercury A3 Shift Lever
- 2003 Mercury A3 Shock
- 2003 Mercury A3 Shock Absorber
- 2003 Mercury A3 Short Block
- 2003 Mercury A3 Side Marker Lamp Front Driver
- 2003 Mercury A3 Side Marker Lamp Front Passenger
- 2003 Mercury A3 Side Marker Lamp Rear
- 2003 Mercury A3 Side View Mirror
- 2003 Mercury A3 Skirt
- 2003 Mercury A3 Spare Tire Carrier
- 2003 Mercury A3 Spare Wheel Carrier
- 2003 Mercury A3 Spark Plug
- 2003 Mercury A3 Speaker
- 2003 Mercury A3 Speedo Head/Cluster
- 2003 Mercury A3 Speedometer
- 2003 Mercury A3 Speedometer Cluster
- 2003 Mercury A3 Spindle
- 2003 Mercury A3 Spindle Front
- 2003 Mercury A3 Spindle Knuckle
- 2003 Mercury A3 Spoiler Front
- 2003 Mercury A3 Spoiler Rear
- 2003 Mercury A3 Spring Hanger
- 2003 Mercury A3 Stabilizer Bar
- 2003 Mercury A3 Starter
- 2003 Mercury A3 Starter Motor
- 2003 Mercury A3 Starter Solenoid
- 2003 Mercury A3 Steering Column
- 2003 Mercury A3 Steering Gear
- 2003 Mercury A3 Steering Gear Rack
- 2003 Mercury A3 Steering Knuckle
- 2003 Mercury A3 Steering Rack
- 2003 Mercury A3 Steering Rack and Pinion
- 2003 Mercury A3 Steering Shaft
- 2003 Mercury A3 Steering Susp Misc
- 2003 Mercury A3 Steering Wheel
- 2003 Mercury A3 Stereo Radio
- 2003 Mercury A3 Strut
- 2003 Mercury A3 Strut Tower Brace
- 2003 Mercury A3 Stub Axle Rear
- 2003 Mercury A3 Sun Roof
- 2003 Mercury A3 Sun Visor
- 2003 Mercury A3 Sun Visor or Shade
- 2003 Mercury A3 Sunroof
- 2003 Mercury A3 Sunroof Assembly
- 2003 Mercury A3 Suspension Arm
- 2003 Mercury A3 Suspension Crossm K-Frame
- 2003 Mercury A3 Suspension Crossmember
- 2003 Mercury A3 Suspension Pump
- 2003 Mercury A3 Sway Bar
- 2003 Mercury A3 Tachometer
- 2003 Mercury A3 Tail Lamp
- 2003 Mercury A3 Tail Lamp Driver
- 2003 Mercury A3 Tail Lamp Passenger
- 2003 Mercury A3 Tail Panel
- 2003 Mercury A3 Tail Pipe
- 2003 Mercury A3 Tailgate
- 2003 Mercury A3 Tailgate Hinge
- 2003 Mercury A3 TCM
- 2003 Mercury A3 Temperature Control
- 2003 Mercury A3 Thermostat
- 2003 Mercury A3 Thermostat Housing
- 2003 Mercury A3 Third Row Seat
- 2003 Mercury A3 Throttle Body
- 2003 Mercury A3 Throttle Body Assembly
- 2003 Mercury A3 Throttle Body Assy
- 2003 Mercury A3 Tie Rod
- 2003 Mercury A3 Timing Belt
- 2003 Mercury A3 Timing Chain
- 2003 Mercury A3 Timing Cover
- 2003 Mercury A3 Timing Gears
- 2003 Mercury A3 Tire Set
- 2003 Mercury A3 Tires
- 2003 Mercury A3 Tool Kit
- 2003 Mercury A3 Tonneau Cover
- 2003 Mercury A3 Torque Converter
- 2003 Mercury A3 Torsion Bar
- 2003 Mercury A3 Track Bar
- 2003 Mercury A3 Transfer Case
- 2003 Mercury A3 Transfer Case Motor
- 2003 Mercury A3 Transmiss Transaxle
- 2003 Mercury A3 Transmission
- 2003 Mercury A3 Transmission Control Module
- 2003 Mercury A3 Transmission Mount
- 2003 Mercury A3 Transmission Pan
- 2003 Mercury A3 Transmission Pump
- 2003 Mercury A3 Transmission Shifter
- 2003 Mercury A3 Transmission Valve Body
- 2003 Mercury A3 Trim Panel Front
- 2003 Mercury A3 Trim Panel Rear
- 2003 Mercury A3 Trim Ring
- 2003 Mercury A3 Trunk Lid
- 2003 Mercury A3 Trunk Lid Hinge
- 2003 Mercury A3 Turbocharger
- 2003 Mercury A3 Universal Joint
- 2003 Mercury A3 Upper Control Arm Front
- 2003 Mercury A3 Upper Control Arm Rear
- 2003 Mercury A3 Vacuum Pump
- 2003 Mercury A3 Vacuum Tank
- 2003 Mercury A3 Valance Rear
- 2003 Mercury A3 Valve Body
- 2003 Mercury A3 Valve Cover
- 2003 Mercury A3 Water Pump
- 2003 Mercury A3 Wheel
- 2003 Mercury A3 Wheel Bearing
- 2003 Mercury A3 Wheel Cover
- 2003 Mercury A3 Wheel Hub
- 2003 Mercury A3 Wheel Speed Sensor
- 2003 Mercury A3 Window Defogger
- 2003 Mercury A3 Window Motor
- 2003 Mercury A3 Window Regulator
- 2003 Mercury A3 Window Shade
- 2003 Mercury A3 Windshield
- 2003 Mercury A3 Windshield Glass
- 2003 Mercury A3 Windshield Washer Reservoir
- 2003 Mercury A3 Windshield Wiper Arm
- 2003 Mercury A3 Wiper Arm
- 2003 Mercury A3 Wiper Motor
- 2003 Mercury A3 Wiper Motor Wdsh
- 2003 Mercury A3 Wiper Motor Windshield
- 2003 Mercury A3 Wiper Transmission
- 2003 Mercury A3 Wire Harness Engine
- 2003 Mercury A3 Wire Harness Transmission
- 2003 Mercury A3 Wiring Harness
Other Year Models
Same Part for Other Makes
- Chevrolet Engine Block
- Ford Engine Block
- Dodge Engine Block
- Chrysler Engine Block
- Jeep Engine Block
- Ram Engine Block
- Buick Engine Block
- Cadillac Engine Block
- Gmc Engine Block
- Pontiac Engine Block
- Lincoln Engine Block
- Toyota Engine Block
- Honda Engine Block
- Nissan Engine Block
- Mazda Engine Block
- Subaru Engine Block
- Mitsubishi Engine Block
- Lexus Engine Block
- Infiniti Engine Block
- Acura Engine Block
About Mercury Motor Co.
Mercury was Ford's mid-level luxury brand, positioned between Ford and Lincoln. Though discontinued in 2011, Mercury was known for combining upscale features with reasonable pricing, creating vehicles that offered luxury touches at accessible price points.
Founded:
1938
Headquarters:
Parent Company:
Quality Standards
Mercury parts were manufactured under Ford Motor Company's quality standards, ensuring reliability and performance. While production has ceased, OEM Mercury parts maintain the quality standards established during the brand's active years.
Notable Features
- Duratec engine technology
- AdvanceTrac stability control
- Safety Canopy System
- Sync technology
Brand Strengths
- Value luxury
- Comfortable ride
- Quality materials
- Ford reliability
Reliability Rating
3.8 out of 5
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Frequently Asked Questions
Yes, we've verified that this Engine Block is fully compatible with your 2003 Mercury A3. Each part in our inventory is carefully matched to specific vehicle makes and models to ensure proper fit and function.
This Engine Block includes all the components that would typically come with this assembly. Before shipping, we verify that all necessary hardware and subcomponents are intact and functional.
At UsedPart.us, each Engine Block undergoes a rigorous multi-point inspection process. We test electrical parts for proper operation, inspect mechanical parts for wear and damage, and verify that every component meets our strict quality standards before it's listed for sale.
We ship to all 50 states with tracking provided on every order. Standard shipping typically takes 3-7 business days depending on your location. For oversized or heavyweight items like some Engine Block assemblies, we use specialized freight services and will contact you to coordinate delivery.
UsedPart.us provides a 30-day warranty on all parts we sell, including this Engine Block. If the part fails to function properly within 90 days of delivery, contact our customer service team immediately. We'll arrange for a replacement or refund, depending on inventory availability.
While we don't offer installation services directly, our team can provide basic technical guidance for Engine Block installations. For more complex repairs, we maintain a database of reputable automotive repair shops across the country and can suggest qualified mechanics in your area who are familiar with Mercury vehicles.
Quality used Engine Block components from UsedPart.us offer significant cost savings compared to new parts while providing reliable performance. Our used parts come from vehicles with documented histories, and many have years of useful life remaining, making them an economical choice for your 2003 Mercury A3.
Yes, our technical support team is available during business hours to answer Engine Block installation questions. We can provide general guidance, specific torque specifications, and advice on special tools that might be required for your 2003 Mercury A3.
We accept returns of incorrectly ordered parts within 90 days of purchase, provided the Engine Block hasn't been installed and remains in its original condition. To avoid ordering the wrong part, we recommend using our vehicle-specific search system or contacting our parts specialists before placing your order to confirm Engine Block compatibility.
Yes, we offer priority shipping options for customers who need Engine Block components quickly. We provide overnight and 2-day shipping options on most items. For expedited shipping, orders must be placed before 1 PM Eastern Time for same-day processing.