Ford Lincoln Mercury Intake Manifold - 1AEIM00010

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Our intake manifolds are some of the highest quality replacements on the market!

This injection molded intake manifold with aluminum crossover is a new, aftermarket replacement part. It is a direct bolt on that is built to strict quality control standards.

The original intake manifold, due to the design, has an abnormal tendency to crack, leading to overheating and in many cases complete engine failure and/or damage to other parts of the car's engine. This new and improved intake manifold is designed to eliminate those problems!

This new upper intake kit has the following specifications:

  • Square port design
  • Reinforced aluminum coolant crossover - which means no repeat failure due to corrosion or vibration
  • Highly engineered reinforced plastic
  • Intake gaskets molded into the intake manifold
  • Replaces dealer part numbers: F6SZ 9424 AA,F8AZ 9424 AAA,F8AZ 9424 BAA,F8AZ 9424 BC,F8AZ 9424 CA,F6SZ9424AA,F8AZ9424AAA,F8AZ9424BAA,F8AZ9424BC,F8AZ9424CA

Kit includes:

  • Complete improved intake manifold with new aluminum crossover
  • New thermostat, thermostat o-ring, and screws
  • Bracket for installing alternator
  • Spacers to install original thermostat housing - making it not necessary to replace the hose and thermostat housing
  • Everything needed to do the job right the 1st time!!

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

Manifold Torque Sequence

  1. step : Relieving the Fuel Pressure (1:42)
    • Remove the truck lining
    • Pop up the red inertia switch button
    • Start the vehicle and let it run until it stalls
  2. step : Disconnecting the Battery (2:30)
    • Loosen the 8mm nut on the negative side of the terminal
    • Isolate the terminal away from the battery
  3. step : Removing the Air Intake (2:56)
    • Use an open drive on a 1/4 inch ratchet
    • Loosen the screw on the engine cover
    • Remove the engine cover
    • Disconnect the MAF sensor
    • Release the airbox clips
    • Lift up the cover
    • Disconnect the two breather hoses
    • Loosen and intake boot clamp
    • Remove the intake
  4. step : Removing the Serpentine Belt (3:55)
    • Familiarize yourself with the route of the serpentine belt
    • Insert the 3/8 inch drive ratchet into the tensioner
    • Turn the tensioner clockwise to loosen the belt
    • Pull the belt off the alternator
    • Release the tensioner
    • Pull the belt off by hand
  5. step : Removing the Alternator (4:50)
    • Pry up the alternator connector
    • Remove the 10mm power lead bolt
    • Remove the lead
    • Hand-tighten the 10mm back to the lead thread
    • Remove the four 10mm bolts from the alternator and its plate
    • Remove the metal plate
    • Loosen the two 10mm bolts from the bottom of the alternator
    • Remove the alternator
  6. step : Draining the Coolant (6:57)
    • Unscrew the radiator cap
    • Stick a hose into the coolant drain
    • Have a drain pan ready
    • Open the drain plug with a 19mm socket and ratchet
    • Hand-tighten the drain plug
  7. step : Removing the Temperature Sensor (8:02)
    • Collapse the upper radiator hose clamp
    • Slide it down the hose
    • Pry off the hose from the housing with channel lock pliers
    • Remove the two 10mm bolts from the housing
    • Remove the thermostat housing
    • Remove the thermostat
  8. step : Removing the Throttle Body Cables (9:45)
    • Rotate the arm on the throttle body
    • Pry off the wire from the slotted tab
    • Keep the arm down
    • Slide the end of the wire out of the notch
    • Release the tension
    • Unhook the spring
    • Remove the two 10mm bolts on top of the throttle cable retainer bracket
    • Pry the throttle cable out of the retainers in the heat shield
    • Remove the coolant feed line from the throttle body de-icer
    • Remove the vacuum line from the throttle body
  9. step : Disconnecting the EGR Tube (12:34)
    • Remove the two 10mm bolts on the EGR tube heatshield
    • Place a paper towel beneath the EGR tube
    • Spray rust penetrant on the EGR tube
    • Loosen the nut on the valve
  10. step : Removing the Throttle Assembly (14:00)
    • Disconnect the connections on the EGR valve
    • Disconnect the vacuum ports on the front of the throttle body assembly
    • Disconnect the large breather hose next to the port
    • Disconnect the throttle position sensor wiring harness
    • Disconnect the idle air control connectors
    • Remove the five 8mm bolts securing the throttle assembly to the intake manifold
  11. step : Disconnecting the Fuel Rail (15:28)
    • Pop the safety tab off of the fuel rail inlet
    • Wear proper safety equipment
    • Slide a disconnect line tool into the fuel line
    • Pull the line out
  12. step : Removing the Fuel Rail (16:14)
    • Disconnect the coolant temp sensor
    • Disconnect the three pin connector at the end of the fuel rail
    • Disconnect the vacuum connections
    • Disconnect the fuel injector wiring harnesses
    • Disconnect the ignition coil wiring harnesses
    • Disconnect the ground clip
    • Remove the two 8mm bolt on the fuel rail
    • Remove the two 15mm bolts on the headshield (one atop the bracket and one under the harness)
    • Pop the alternator harness off of the bolt
    • Disconnect the fuel injector wiring harnesses
    • Disconnect the ignition coil wiring harnesses
    • Remove the two 8mm bolt on the fuel rail on the other side of the engine
    • Pop the injectors up and out of the intake manifold
    • Remove the fuel rail and injectors
  13. step : Removing the Intake Manifold (19:05)
    • Remove the 16mm bolt from the ignition coil
    • Remove all the ignition coils
    • Compress the coolant hose clamp at the back of the intake
    • Pull the hose out
    • Remove the remaining eight 10mm bolts from the intake manifold (5 on the passenger side; 3 on the driver side)
    • Carefully remove the intake manifold from the vehicle
  14. step : Cleaning the Intake Manifold Gasket Surface (23:00)
    • Insert paper towels into the inserts
    • Remove the old gaskets
    • Use brake cleaner and a paper towel off of the gasket surfaces
    • Remove the paper towels once the surface is clean
    • Wipe up any coolant or dirt or debris from the valley in the engine
  15. step : Installing the Intake Manifold (25:38)
    • Lay the new manifold into the sound deadening material
    • Lower the intake manifold into place
    • Tighten the eight 10mm bolts by hand to the intake manifold
    • Tighten the 10mm bolts to 18 foot-pounds or 25 newton-metres in the correct torque sequence
    • Remove the cap
    • Install the cooling line at the rear and compress the clamp
  16. step : Reinstalling the Fuel Rail (29:20)
    • Reinstall the ignition coils
    • Reinstall the fuel rail
    • Reinstall the 8mm fuel rail hold down screws
    • Connect the fuel injector wiring harnesses
    • Connect the ignition coil wiring harnesses
    • Connect the alternator retainer to the wire
    • Connect the vacuum modulator
    • Connect the coolant temp sensor connector
    • Insert the ground connection to the fuel rail stud
    • Connect the vacuum fitting
    • Connect the fuel supply line
    • Reingage the safety
  17. step : Switching Over Sensors to the New Intake Manifold (31:23)
    • Remove the coolant temp sensor from the old intake manifold
    • Clean the old dirt from the coolant temp sensor threads
    • Apply thread sealant onto the threads of the sensor
    • Install the sensor to the new manifold
    • Connect the wiring harness to the coolant temp sensor
    • Install the M8 Allen plug to the new manifold
  18. step : Reinstalling the Heatshield (33:06)
    • Line up the bolts to the heatshield
    • Reinstall the heatshield bracket on the driver side
    • Reconnect the wire harness to its bracket
    • Tighten the bolts to the heatshield
    • Torque the upper bolt to the 18 foot-pounds
  19. step : Reinstalling the Throttle Assembly (34:08)
    • Clean off the surface of the bottom of the throttle assembly
    • Insert the throttle assembly onto the top of the manifold
    • Reinstall the five 8mm screws to the assembly
    • Reinstall the EGR tube into the EGR valve with groove jaw pliers
    • Reinstall the EGR tube heatshield
    • Tighten the two 7mm screws to the heatshield
    • Reconnect the EGR valve connector
    • Press on the vacuum fittings
    • Connect the vacuum line
    • Connect the breather hose to the valve cover
    • Route the throttle/cruise control cables around and into their retainers
    • Reinstall the 10mm bolts to the retainer bracket
    • Open the throttle body by hand
    • Insert the pin and rotate the throttle cable into its channel
    • Snap the cruise control cable into place
    • Reinstall the return spring
    • Reconnect the breather hose
    • Reconnect the coolant de-icer hose
    • Reconnect the throttle position sensor harness
    • Reconnect the idle harness
  20. step : Reinstalling the Thermostat (37:27)
    • Lay the thermostat into place
    • Insert the housing into place
    • Tighten the two 8mm bolts to the housing
    • Torque the bolts to 18 foot-pounds
    • Reinstall the upper radiator hose to the thermostat housing
    • Set the clamp into place
  21. step : Reinstalling the Alternator (38:15)
    • Relocate the stud from the old manifold to the new one
    • Reinstall the alternator
    • Reinstall the top bracket and hand-tighten the screws
    • Fully tighten the top bracket bolts
    • Tighten the bottom bolts to the alternator
    • Reconnect the electrical connector
    • Reconnect the power leader and 10mm nut
  22. step : Reinstalling the Serpentine Belt (39:30)
    • Loop the belt around the crank pulley
    • Bring it around the water pump
    • Bring it over the belt tensioner
    • Bring it under the A/C Pulley
    • Bring it over the idler pulley
    • Bring it around the power steering pulley
    • Pull the tensioner clockwise with the 3/8 inch ratchet
    • Pull the belt over the alternator
    • Release the tensioner
  23. step : Reinstalling the Air Intake (40:48)
    • Install the intake boot onto the throttle body
    • Tighten the hose clamp with a flat blade screwdriver
    • Connect the breather hoses
    • Press the airbox lid into place
    • Clamp the air box
    • Connect the MAF sensor
    • Reinstall the engine cover
    • Tighten the screw on the cover with a 1/4" ratchet and extension
  24. step : Reconnect the Battery (41:58)
    • Reconnect the negative terminal
    • Tighten the terminal with a 5/16 or 8mm wrench
  25. step : Priming the Fuel Lines (42:12)
    • Press down on the red intertia switch button
    • Insert a funnel into the coolant reservoir
    • Fill the cooling system
    • With the cap off, turn the key to the run position
    • Allow the fuel pump to turn on and off
    • Repeat the cycle two more times
    • Start the vehicle
    • Set the vehicle to vent/heat on the lowest setting
    • Keep an eye on the coolant level
    • Add coolant as needed
    • Reinstall the cap once completed

Tools needed for replacement:

    General Tools

  • Funnel
  • Jack Stands
  • Drain Pan
  • Wire Brush
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant
  • Dust Mask
  • Safety Glasses
  • Gloves
  • Paper Towels
  • Anti-Seize Grease

  • Pliers, Cutters & misc Wrenches

  • Channel-Lock Pliers

  • Ratchets & Related

  • Socket Extensions
  • Torque Wrench
  • 3/8 Inch Drive Ratchet
  • 1/4 Inch Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • Complete Metric Socket Set

  • Specialty Tools

  • Fuel Line Disconnect Tool

  • Wrenches - Metric

  • Complete Metric Wrench Set

4.79/ 5.0
28 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
The parts came properly packaged and everything was included as stated in the description. The part has been placed on my vehicle and we havent had any issues. I am satisfied.
March 2, 2017
Replacing Intake Manifold on a 2000 Grand Marquis
Had to replace the intake manifold on my year 200 Grand Marquis. Although Ive never "tackled" this kind of repair, was able to the job in 3 1/2 to 4 hours. This time did not include cleaning all of the gunk from the cylinder heads. Found the instruction easy to follow and am extremely satisfied. Price was great and delivery right on schedule. Will buy other products from 1AAUTO if need arises.
July 9, 2017
Thanks for the chance to give you my input on this product it was a perfect fit for my Lincoln Town car,it came with everything I needed and installation was easier than I thought it would be. The price was half what the local parts store charged and the car runs better than it ever did! Ill be a customer from now on for everything I need in the future. Thanks again 1A Auto.W.Milot
September 15, 2017
i got it on saterday
thank you for reshipping it to me i got the old one off but have not installed the new one yet bad weather here in denver. roger heckler classic auto and truck denver co
November 28, 2017
1AEIM00010-Intake Manifold
Excellent replacement part. no complaints. everything as advertized. Best price, quality, and installation instructions via Youtube!
February 3, 2018
Exact Fit
I purchased this part on Amazon by the Doorman company, but it was not an exact fit.However, this part fit perfect and was a breeze to install.
February 26, 2018
Replace the old 4.6 intake that was leaking st the thermostat and the aluminum elbow works great.
May 8, 2018
Kit worked out great much better than the factory original design. Everything needed to do the job correctly was included in the kit. Very happy cars running like it used to would recommend this kit to anyone that has the 4. 6 intake manifold leak.
August 24, 2018
The part arrived on time and was exactly what I needed. The video also assisted in the replacement of the part.
August 29, 2018
Fast ship! Satisfied customer
Although I am not a mechanic, I would recommend the manifold as it was the best priced and I havent had any issues since purchasing.
October 25, 2018
Installed smoothly, works great!
No issues when installing this into the vehicle, more time was actually spent on cleanup and getting little things to replace old OEM Ford parts that had failed outside of this kit! On top of that, the part shipped fast, at a fair cost considering the weight! Everything seems very durable, like it will last for a long time. If youre stuck on whether to order from here through 1A, or another competitor, stop waiting, youve found your part!
November 13, 2018
Intake manifold
The part worked but there were a few issues. The new alternator bracket needed to be bent to fit properly, and also needed two of its holes drilled out larger. The throttle body holes on the manifold were not deep enough to use the original bolts, so I used the old plastic spacer. A1 advertised a metal coolant crossover, but the base of each side of the crossover is still plastic where it meets the heads. The worst part is that the included thermostat failed in the closed position after driving about 150 miles, so you probably want to get a better one that will fail open. I just put the original thermostat back in. Also the point where the radiator hose gooseneck meets the new manifold is not a great fit, so be prepared to use some form a gasket because the included oring will not do the job. It was nice having the orings that meet the cylinder heads integrated into the new manifold. The reason I ordered this one was that it was the cheapest available.
December 7, 2018
Intake Manifold better than prior designs
The manifold bolt hole alignment and intake ports matched exactly. The seals were excellent quality. All parts needed to do the job were included. No leaks, no seem cracks, I love how it had excellent vacuum and no issues. I recommend A1 Auto as a primary source for new parts.
January 4, 2019
Intake manifold
Its my first time ordering from 1A auto and ill say it was easy and my part arrived in a few days, it was an easy install and it actually looks order from 1A auto again because a car that i bought for project went to daily driver and now is bk to being a project car hoping to have it all buttoned up for car show to say thank u wish i could add a pic...
January 9, 2019
Intake Manifold
Received promptly, good price. Have not installed it yet so Ill get back to you on how that goes.
January 11, 2019
Intake Manifold
Bought this intake after going through three from Dorman. This was great quality, easy to install and had everything in it. Best of all I didnt have to use any RTV to fix a flaw that the company knows is there. Great experience!!!!
February 3, 2019
Perfect Part Replacement
Arrived 2 days after purchase and took only a few hours to install. It was the perfect replacement for the factory part that failed due to age and typical wear. The instructions were simple and with the linked video showing the work done, I was able to successfully get my Town Car back on the road working better than before the repair.
February 20, 2019
intake manifold
I bought it to replace the factory stock intake manifold, this seems to be better quality than factory. The part of the manifold that is a common problem with cracking due to being plastic on stock is made of metal on this replacement. The installation video was a big help in being able to this ourselves
February 25, 2019
?? Excellent for 1999 Crown Victoria LX
I found by searching on YouTube for how to replace an intake manifold on a Crown Vic. Watched 1As video and was impressed. Researched elsewhere online, looked at different part suppliers, and settled on A1. • Low enough retail price for a new part. I was not interested in tracking down and salvaging a used part, nor paying a premium for new OEM. A1s part actually turned out to be both the best-reviewed and lowest-priced of parts that I was interested in. • Clean, well-organized webpage for the part. Readily offered all the documentation that I sought: detailed description, high-resolution product photos, FAQ, vehicle fit, reviews, part # of similar part from other manufacturers. • Installation video. Gained much of my confidence in A1 from the video. Clear, straight-to-the-point demonstration. Made this in-driveway DIY repair possible for me. Well done, A1. I used part #1AEIM00010 as recommended for a 1999 Crown Vic and it has been working great. Note that the torque sequence in the video differs from the included paper instructions. I recommend the video: tried the paper way first but couldnt get a torque wrench on the back right bolt. The sequence in the video has been working fine. Be sure to test your torque wrench before torquing down: I narrowly avoided either cracking the new manifold, or snapping a bolt, by using a broken torque wrench. This could be specific to the 1999 model, but to remove the heat shield in the back right, I had to remove three fasteners rather than just two mentioned in other how-tos. First on top the long torque bolt, then back left a 13mm bolt, then back right all of a 13mm nut, a wiring bracket, and a 15mm stud bolt. It was worth it to buy both a 13mm and 15mm ratcheting flex wrench to remove these. I ended up not reinstalling the 15mm stud bolt (nor its 13mm nut): the left 13mm bolt in the back also holds the wiring bracket, and I just have the heat shield re-installed with only the one long torqued bolt on top. Im not worried about it. I highly recommend the paper-towel-cup technique in the video, especially when cleaning the cylinder head with a liquid cleaner. The surfaces around the ignition coils were so dirty and covered in muddy grime that I resolved to remove the old manifold without pulling any of the coils out. After removing the manifold, I folded up and stuffed in each cup made from a quarter of a paper towel, then removed the gaskets, I wiped much of the grime off from all around the ignition coils, carefully blasted brake cleaner around them, and soaked up the mess with paper towels. Once it was clean enough, I popped out all the coils, wiped them down, and wiped the cylinder head down with more brake cleaner. It was when all that was done that I pulled out the cupped paper towels and found that they had soaked up substantial amounts of grimy, crust-laden brake-juice mix. Better to have that stuff soaked into the paper towels than dripping into the cylinder head, I figure. Very good experience overall thanks to A1. Will purchase again.
March 8, 2019
Great Video & great product
I am a novice mechanic and was afraid to try to replace an intake manifold on a 1999 Grand Marquis. The Video was so good that I ordered the part and was able to install it with very little trouble. I have ordered several parts for 1AAuto and have never been disappointed, and have recommended them to others. Thanks, Carl
March 9, 2019
Fit perfect. Great part. Better than oem part. Price was good.
March 26, 2019
Intake manifold
Fits ,Easy to instal Runs like new.
June 10, 2019
Part was defective, refunded price no questions asked
I really have no complaints outside of the fact the part was defective. Shipping was fast, all the brackets and extra bolts were there exactly as in the pictures. The car ran poorly and after a smoke test it was determined that it had a major leak in one of the seams. The car is a DD so it had to be fixed immediately. Purchased a Dorman from a local source and sent it on its way. I explained to customer service the issue and was refunded the price no questions asked, no need to return the intake. Typically Id run into problems with other suppliers because the part had been installed and they usually try to blame it on installation error. Those past experiences had me worried. It didnt happen here and for that reason I will buy parts from here in the future. Defects sometimes happen and Im glad they believed me. Id give 5 stars if it was for the customer service alone.
June 23, 2019
4.6 intake manifold
it work perfect;VERY SATISFIED, defenetly willcontinue doing business; great company...keep up the great work!!
June 30, 2019
97 Ford Thunderbird
The new intake manifold fit perfect on my 4.6L V8. The only thing that didn’t was the alternator bracket. It came with one that was similar but the holes didn’t line up. Other than that, it works perfect!
July 14, 2019
Worker perfectly.
Fit my 1997 grand marquis with no issues. No need for gaskets as it has built in seals. Highly recommend
July 25, 2019
Awesome product
Got exactly what I ordered. Perfect fit with new seals and thermostat. I especially like that where my old manifold cracked at on this new part it’s not plastic Best experience so far ordering a part online
August 4, 2019
A perfect fit
to anyone who buy this part you will love it fits perfectly
September 4, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
With this part do you need gaskets between the block and the manifold?
Travis D August 3, 2017
Yes you do need gaskets.
Edward R August 4, 2017
All of the gaskets are included, so you dont have to buy them separately. They are needed when you put the part in though (in case that was your question).
Matt S August 4, 2017
If you get it from A1 auto it comes with some gaskets in place as well as thermo stat an all.
William W August 5, 2017
No, It comes with everything, gaskets are molded in, New thermostat, and even an alternator bracket, The only thing that you have to buy is Antifreeze.
L I September 15, 2017
No, it has gaskets molded in to the manifold already.
Tom R July 14, 2019
Your ad says it replaces a Dorman 615-178. Who manufactures this manifold? Thank you.
Charlie W March 6, 2018
We have a few different aftermarket companies build these parts specifically for us, as our 1A Auto house brand. They are manufactured to the same OEM specifications as the original part that came with your vehicle. If you have any further questions, please dont hesitate to ask.
Adam G March 6, 2018
I cant remember the manufacturer but it was an exact replacement for the 4.6L engine and installation was straightforward.
David R March 6, 2018
Can i buy the universal alternator bracket seperate?
Jason M August 10, 2018
The alternator bracket only comes with this kit and is not sold separately. If you have any other questions feel free to contact us and have a great day!
Corey M August 10, 2018
Year Make Model Description
1996-2000Ford Crown Victoria Ford Crown Victoria Intake Manifold V8 4.6L (8th Vin Digit W)
1996-2000Ford Crown Victoria Ford Crown Victoria Intake Manifold V8 4.6L (8th Vin Digit 9)
1996Ford Crown Victoria Ford Crown Victoria Intake Manifold V8 4.6L (8th Vin Digit 6)
1996-1998Ford Mustang Ford Mustang Intake Manifold V8 4.6L SOHC (8th Vin Digit X)
1996-1997Ford Thunderbird Ford Thunderbird Intake Manifold V8 4.6L (8th Vin Digit W)
1996-2000Lincoln Town Car Lincoln Town Car Intake Manifold V8 4.6L (8th Vin Digit W)
1996-1997Mercury Cougar Mercury Cougar Intake Manifold V8 4.6L (8th Vin Digit W)
1996Mercury Grand Marquis Mercury Grand Marquis Intake Manifold V8 4.6L (8th Vin Digit 6)
1996-2000Mercury Grand Marquis Mercury Grand Marquis Intake Manifold V8 4.6L (8th Vin Digit W)
Part 1AEIM00010
In Stock

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