Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclaimer here.
If you drive a GMC Acadia, the intake manifold plays a central role in engine breathing, drivability, and long-term reliability. Choosing the right intake manifold matters because a poor fit or persistent leaks can cause rough idle, loss of power, and repeated repairs. This guide covers our shortlist of the top intake manifolds for the GMC Acadia and explains the evaluation criteria used, including fitment accuracy, material quality, sealing reliability, and ease of installation. Read on to find options that match your maintenance or upgrade goals.
Looking for other parts? See all GMC Acadia parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | GM Genuine Parts Engine Intake Manifold Cover 12625893 |  |
| Most Popular A crowd favorite that many people choose with confidence | GM Genuine Parts 25200449 Intake Manifold |  |
| Best Quality Built to a higher standard if you want something more solid | GM Genuine Parts 55570283 Intake Manifold Kit with Multi-Port Injectors and Fuel Rail |  |
| Best Budget The cheapest option that still gets the job done reliably | Garage-Pro Intake Manifold Kit (Replacement) |  |
| Most Sold A high-volume bestseller chosen again and again | A-Premium Replacement Intake Manifold for 2.4L GM 4-Cylinder |  |
| Best Value for Money The sweet spot between price and what you get | Dorman 615-380 Intake Manifold with Gaskets (Replacement) |  |
| Best Overall The best all-around choice for most situations | Dorman 615-380KIT Intake Manifold and Valve Cover Kit (OE Fix) |  |
1. GM Genuine Parts Engine Intake Manifold Cover 12625893
| Manufacturer | GM Genuine Parts |
|---|---|
| Model | GM Original Equipment |
| Exterior | Machined |
| Manufacturer Part Number | 12625893 |
This GM Genuine Parts intake manifold cover is a factory-quality replacement designed to restore the engine appearance and protect the intake on compatible GM models. It installs where the original cover sits to keep the intake area sealed and presentable and is typically used during engine repairs or when replacing a damaged or missing cover. Notable attributes include machined exterior finish and GM part validation, which help ensure fit and finish that match factory standards. Buyers will appreciate that this is a direct-fit GM part so it reduces the guesswork during installation and looks like the original under the hood. Limitations are that this is a cosmetic and protective cover rather than a performance intake component, so it does not affect airflow or horsepower; installation still requires basic engine access and the correct fasteners. If you need a reliable, factory-style replacement to maintain OEM appearance and protection on your GMC, this part fulfills that role without extra features.
Best for: Reliability-focused owners who prioritize factory-fit replacements and want a straightforward, OEM-style cover to keep their GMC Acadia's engine bay correct and protected.
Less Ideal for: Drivers looking for performance gains or aftermarket intake upgrades should choose a performance intake component instead.
- Factory-validated GM Genuine Parts design for reliable fit and appearance
- Machined exterior finish for a clean, OEM look under the hood
- Direct replacement part number 12625893 simplifies matching and installation
- Multiple owner reports confirm consistent fit on compatible GM engines
- Serves a cosmetic and protective role only and does not improve engine performance
- Requires engine access and proper fasteners for correct installation
Verdict A dependable factory-quality intake manifold cover that restores OEM appearance and fit for reliability-minded GMC owners but offers no performance benefits.
2. GM Genuine Parts 25200449 Intake Manifold
| Manufacturer | ACDelco |
|---|---|
| Brand | GM GENUINE PARTS |
| Model | 25200449 |
| Exterior | Machined |
This GM Genuine Parts intake manifold replaces the factory unit to evenly deliver the combustion mixture or air to each intake port and restore correct engine vacuum behavior. It is sold as a direct replacement manufactured to GM factory specifications, so installation on compatible GM engines is straightforward for a competent DIYer or a technician. Notable features include machined exterior finish and OEM-referenced part number for fit, and many users report it resolves rough idle, high oil consumption, and PCV-related issues caused by the original manifold. The practical benefit is returning engine performance and emissions behavior to factory standards without modifying other systems. Limitations are that the manifold follows the original design, so non-serviceable internal check valves may still require replacing the entire assembly if they fail again, and replacing the manifold can expose or necessitate replacement of adjacent components that wear at similar mileage. Expect routine mechanical labor and possible need for ancillary seals or tubes during installation.
Best for: Buyers who prioritize convenience and want a factory-quality, drop-in replacement to quickly restore correct engine operation without performance modifications.
Less Ideal for: Drivers looking for an upgraded or serviceable aftermarket manifold design or those who prefer parts with easily replaceable internal components should consider alternatives.
- Factory-quality replacement engineered to GM specifications for correct fit and function
- Machined exterior and OEM part numbering that simplify matching to the correct engine
- Direct-replacement design restores proper air distribution and helps fix vacuum/PCV-related drivability issues
- Widely reported to resolve rough idle and reduce oil/fuel consumption when fitted correctly
- Internal check valve and some components are not serviceable separately, requiring full manifold replacement if they fail
- May require removal or replacement of nearby hoses, gaskets, or tubes during installation which adds cost and time
Verdict A true GM factory-spec replacement that reliably restores original intake function but follows the same non-serviceable design as the original.
3. GM Genuine Parts 55570283 Intake Manifold Kit with Multi-Port Injectors and Fuel Rail
| Manufacturer | ACDelco |
|---|---|
| Brand | GM GENUINE PARTS |
| Item model number | 55570283 |
| Manufacturer Part Number | 55570283 |
| OEM Part Number | 55570283 |
This GM Genuine Parts intake manifold kit is a direct-fit replacement intended to restore the intake system on compatible GM engines. It replaces the factory manifold and ships complete with multi-port fuel injectors and a fuel rail so you do not need to reuse old hardware. Typical use is a repair or rebuild where the original manifold has cracked, leaked, or suffered a failed injector. Because it is manufactured to GM specifications, fit and mounting points match factory locations which simplifies installation for a competent technician. The onboard injectors and fuel rail reduce parts-sourcing and contamination risk when installing a new manifold. Expect the practical benefits of restored vacuum integrity, consistent fuel delivery, and the reliability of a factory-quality assembly. Limitations are that installation can be time consuming on some Acadia engines and may require removal of surrounding components, so plan for a professional-level job if you are not experienced with engine work.
Best for: Performance-oriented buyers who prioritize factory-quality replacements to restore engine breathing and fuel delivery on their GMC Acadia and want the confidence of a complete, factory-validated kit.
Less Ideal for: Buyers seeking a simple, DIY quick fix without engine disassembly or those who need a universal or modified-performance aftermarket manifold.
- Factory-quality part manufactured to GM specifications for fit and reliability
- Includes multi-port fuel injectors and fuel rail so you get a complete installation kit
- Restores proper intake air and fuel distribution to eliminate vacuum leaks and related drivability issues
- Widely used replacement with positive owner reports of fitting and performance on GM 1.8L engines
- Installation can be labor intensive on some Acadia engines and may require removing other components
- Only fits specific GM engine applications so verify exact Acadia engine compatibility before buying
Verdict A factory-quality, complete intake manifold kit that restores factory fit and fuel delivery on compatible GMC Acadia engines, with the time and labor cost of a professional-level installation.
4. Garage-Pro Intake Manifold Kit (Replacement)
| Manufacturer Part Number | JCWRC31190002GP |
|---|---|
| OEM Part Number | 12637620 |
| Includes | Seals, sensor, gasket, bolts |
| Compatible Engines | 2.4L and 3.0L GM engine designations (per listing) |
This Garage-Pro intake manifold kit is an affordable aftermarket replacement intended to restore airflow routing on compatible GM 2.4L and 3.0L engines. It is supplied as a complete kit with the manifold plus seals, a sensor, a gasket, and mounting bolts to simplify installation and reduce the need to source additional parts. In practice it installs like a factory replacement part and is useful when the original manifold is cracked, leaking, or the integrated gasket surfaces have failed. The plastic construction keeps weight down and the kit approach minimizes downtime by providing commonly missing hardware. Limitations are typical of economy aftermarket manifolds: long-term durability versus a factory-quality part can vary depending on driving conditions, and fitment must match the Acadia engine designation exactly to avoid compatibility issues. For a budget repair where you want a ready-to-install replacement and are prepared to monitor long-term performance, this kit is a practical option.
Best for: Budget-conscious owners looking for an economical, ready-to-install intake manifold replacement to get a GMC Acadia back on the road without sourcing multiple parts.
Less Ideal for: Those seeking a long-term OEM-level replacement or planning heavy-duty use should consider factory-quality parts or professional remanufactured units instead.
- Complete kit includes manifold, seals, gasket, sensor, and bolts for one-stop installation
- Aftermarket replacement designed to match GM interchange part number 12637620 simplifying fitment checks
- Plastic construction reduces weight and is standard for many intake manifolds
- Supplied hardware can shorten repair time compared with buying parts separately
- Aftermarket plastic manifolds may not match the long-term durability of factory-quality replacements
- Compatibility requires verifying the Acadia engine designation and year before ordering
Verdict A cost-focused, ready-to-install intake manifold kit that restores function for a GMC Acadia when matched to the correct engine designation.
5. A-Premium Replacement Intake Manifold for 2.4L GM 4-Cylinder
| Fitment | GM 2.4L L4 engines (select models) |
|---|---|
| Sensor/Seal Included | Yes |
| Mount Hole Quantity | 7 |
| Mount Hole Diameter | 0.394 inch |
This intake manifold is sold as a direct replacement for GM 2.4L naturally aspirated four-cylinder engines and is intended for in-line installation where the factory manifold failed or is being upgraded. It accepts factory sensors and includes seals and mounting hardware to simplify installation and reduce parts hunting. The inner runners are smoothed for improved airflow compared with some older cast manifolds, which can help restore throttle response and reduce stalling in engines suffering from intake restrictions. Several reviewers report good fit and OEM-like sealing, while others have found brittle or poorly finished purge ports and occasional sealing issues at critical bolt locations, so careful inspection at installation is prudent. Use typically involves swapping the manifold with basic mechanical skills and the proper torque sequence; expect to also service nearby fuel-rail components during removal. For a risk-averse buyer this offers a cost-effective, mostly straightforward replacement, but inspect ports and gasket surfaces before finishing the job to avoid vacuum leaks or post-install troubleshooting.
Best for: Risk-averse mainstream buyers who want a budget-conscious, factory-style replacement that minimizes parts hunting and restores normal engine breathing without performance modifications.
Less Ideal for: Buyers looking for a performance-oriented intake or a long-term high-mileage upgrade should consider higher-end or OEM-sourced options instead.
- Direct-fit design for GM 2.4L four-cylinder engines to reduce fitment headaches.
- Includes sensor seals and mounting nuts to simplify installation.
- Smoothed inner runners for improved air flow compared with rough-cast replacements.
- Ships with mounting hardware so fewer separate parts are required for a swap.
- Some customers reported fragile purge ports or connectors that can break during handling.
- A minority of units have shown sealing issues around central bolt areas leading to vacuum leaks.
- May require additional work on adjacent fuel-rail components during replacement, adding labor time.
Verdict A convenient, mostly reliable factory-style replacement for 2.4L GM engines that saves money over dealer parts but warrants careful inspection at install.
6. Dorman 615-380 Intake Manifold with Gaskets (Replacement)
| Manufactured in | United States |
|---|---|
| Material | Nylon polymer |
| Includes | Throttle body gasket, port gaskets, injector O-rings, MAP O-ring, screws |
| Automotive fit type | Vehicle Specific Fit |
This Dorman intake manifold is a vehicle-specific replacement designed to correct a common failure where the internal PCV valve becomes dislodged and causes oil consumption. It is supplied as a complete kit with throttle body and port gaskets, fuel injector O-rings, MAP sensor O-ring, and screws so you can swap the manifold without sourcing extra seals. The part is molded from a tough nylon polymer and Dorman says the internal valve retention has been redesigned to keep the PCV valve in place, which reviewers report stops recurring oil leaks and related fault codes. Installation is typical for intake manifold replacement and may be straightforward for a professional or experienced DIYer, though it can take a few hours and some users recommend replacing related components like the valve cover and vent hose while doing the job. Expect a factory-quality fit where confirmed for the vehicle, but plan for careful handling since underhood plastics can be brittle and some kits may not include every injector O-ring for every service approach.
Best for: Practical optimizers looking for a cost-effective, improved replacement that stops repeat oil-consumption repairs and simplifies reassembly while extending the life of the breathing system.
Less Ideal for: Those seeking a metal or performance aftermarket manifold or anyone who does not want to perform a multi-hour mechanical replacement should consider professional service or alternative options.
- Redesigned PCV valve retention to reduce the common failure that causes oil consumption
- Includes gaskets and most hardware needed for a complete manifold replacement
- Manufactured from nylon polymer to resist cracking and warping
- Vehicle-specific fit engineered to match factory mounting points
- May require replacement of related parts like the valve cover or vent hose for a full fix
- Plastic construction can be brittle during installation if not handled carefully
- Some kits may lack every injector O-ring depending on service method
Verdict A practical, improved replacement that targets a known PCV-related oil consumption failure and comes with most installation gaskets for good value.
7. Dorman 615-380KIT Intake Manifold and Valve Cover Kit (OE Fix)
| Material | Metal |
|---|---|
| Inlet Connection Type | positive crankcase ventilation |
| Outlet Connection Type | PCV |
| Number of Ports | 1 |
This Dorman 615-380KIT is a repair-focused kit that replaces the intake manifold, valve cover and PCV tube to correct a common PCV valve failure in GM 1.4L Ecotec engines. It is typically used when the intake/manifold check valve or valve cover diaphragm has failed, producing rough idle, excessive oil consumption, or P1101 style codes. The intake manifold in this kit is a revised design intended to prevent the original failure mode, and the bundle approach means you replace all components that commonly fail together. Installation is straightforward for a DIYer with basic tools and a few hours; instructions and many online tutorials make the job accessible. Reviewers report good fit and that the check engine light and symptoms clear after replacement. A limitation is that some mounting points use molded plastic threads and the supplied fasteners are basic, so careful installation and occasional hardware upgrades may be needed for long-term durability. This kit is a practical, targeted fix for the specific GM 1.4L intake/PCV failure rather than a performance upgrade.
Best for: Balanced owners who want a reliable, factory-quality repair that addresses a known design defect and prefer a single kit to replace all affected components in one service.
Less Ideal for: Drivers seeking increased engine performance or universal fitment across many GM engines should look for performance intake upgrades or parts specific to their engine displacement.
- Complete kit replaces intake manifold, valve cover and PCV tube so related failures are fixed in one job
- Redesigned intake manifold addresses a known PCV/check valve defect in the original design
- Good fitment for the specified GM 1.4L Ecotec applications with many users reporting resolved check engine codes
- Accessible installation for competent DIYers with plentiful online guidance
- Some mounting points use plastic threads and supplied bolts are basic, which may require stronger fasteners or careful torqueing
- Not a performance part; intended only as a repair solution for specific GM 1.4L issues
Verdict A practical OE-quality repair kit that replaces all the parts that fail together on GM 1.4L Ecotec engines and corrects the intake manifold design flaw.
Choosing the Right GMC Acadia Intake Manifold: Key Factors to Consider
Fitment and Port Alignment
Correct fitment is the first priority because misaligned ports or mismatched bolt patterns will complicate installation and can cause leaks. Manifolds designed specifically for the GMC Acadia ensure intake runners line up with the head ports and sensors mount in the expected locations.
Poor alignment often means extra work, nonstandard gaskets, or adapter plates, which increase failure risk. Verify that mounting surfaces and vacuum ports match factory locations to avoid an extended installation process and potential drivability issues.
Material and Thermal Stability
Manifold material affects heat absorption, weight, and resistance to warping. Cast aluminum and reinforced composites behave differently under thermal cycling; choose a construction that resists distortion where the manifold meets the cylinder head.
A thermally stable manifold maintains sealing surfaces and bolt torque over time. Consider materials that offer a balance of durability and thermal performance to reduce the chances of gasket failure and vacuum leaks in everyday driving.
Sealing Surfaces and Gasket Compatibility
The quality of sealing surfaces and how the manifold interfaces with gaskets determines leak resistance. Smooth, machined flange faces and consistent surface finish reduce the likelihood of intake manifold leak issues.
Ensure replacement gaskets match the manifold and head design. Some manifolds require specific gasket types or multi-piece seals. Proper gasket compatibility reduces rework and the risk of vacuum leaks that cause rough idle or check-engine indications.
Ease of Installation and Serviceability
Installation complexity affects labor time and the chance of installation-related problems. Manifolds that allow access to fasteners and sensors without extensive disassembly save time and reduce error risk.
Designs that preserve factory sensor locations and use standard fastener patterns simplify reassembly. Clear access to mounting bolts and vacuum fittings also makes future maintenance, such as intake manifold cleaning or gasket replacement, more straightforward.
Compatibility with Engine Accessories and Sensors
A proper intake manifold must accommodate the Acadia's sensors, vacuum lines, and any accessory plumbing without modification. Missing or relocated ports can lead to incorrect sensor readings or require hoses to be rerouted, which increases failure points.
Confirm that vacuum fittings, coolant passages if present, and sensor bosses are present and correctly placed. Maintaining factory sensor locations helps preserve engine management accuracy and diagnostic clarity.
Long-Term Durability and Maintenance Needs
Consider how the manifold performs over time, including susceptibility to carbon buildup, gasket creep, and thermal degradation. Designs that resist common failure modes reduce the likelihood of repeated repairs.
Think about whether the manifold will be easy to clean and service if carbon accumulation or gasket replacement becomes necessary. Durable sealing solutions and corrosion-resistant surfaces lower long-term maintenance frequency and help preserve engine performance.
FAQ
How do I know if my GMC Acadia intake manifold needs replacement?
Signs that often indicate manifold issues include rough idle, engine misfires, reduced power, or coolant loss if the manifold integrates coolant passages. You may also notice vacuum-related symptoms or error codes tied to airflow or fuel trim. A careful visual inspection for leaks at the gasket surfaces and listening for hissing noises can help narrow the problem.
Can I replace the intake manifold myself?
Many mechanically inclined owners can handle manifold replacement with basic hand tools and a service manual. Tasks include draining coolant if applicable, disconnecting sensors and vacuum lines, and following proper torque procedures. If you are unsure about torque specs or sensor reconnection, professional assistance is recommended to avoid installation errors.
What causes an intake manifold leak on this vehicle?
Common causes include degraded or improperly installed gaskets, warped mating surfaces due to heat cycles, or damaged bolts and fasteners that reduce clamp force. Dirt or old gasket material left on mating surfaces can also prevent a reliable seal. Regular inspections and correct installation procedures reduce the risk of leaks.
How can I diagnose an intake manifold vacuum leak?
Diagnosis often begins with a visual check for cracked hoses and loose fittings, then moves to listening for hissing while the engine runs. Smoke testing the intake system or using a scan tool to look for lean conditions and misfire codes are common approaches. These steps help localize the leak so you can determine whether the manifold, gasket, or a connected hose is the issue.
Is intake manifold cleaning necessary during replacement?
Cleaning is frequently advisable because accumulated carbon and gasket residue can prevent a proper seal. Removing old material and ensuring smooth mating surfaces improves sealing and airflow. Cleaning also provides an opportunity to inspect sensor ports and vacuum fittings for damage or blockage.
Where do torque specs fit into the installation process?
Correct torque sequence and values are critical to achieve an even clamp load and prevent gasket failure. Follow the manufacturer torque specs and tightening sequence for the GMC Acadia to avoid warpage and ensure a leak-free seal. If you lack the specs or the right tools, consider getting the information before starting the job.
How We Chose the Best GMC Acadia Intake Manifold
To build this list we focused on practical, vehicle-specific criteria that matter for GMC Acadia owners. Key evaluation points included fitment accuracy to ensure bolt pattern and port alignment match the Acadia engine, material and construction quality to resist heat and warpage, and sealing reliability because gasket and mating surface performance determine long-term leak resistance. We also considered ease of installation, including accessibility of mounting points and whether common torque specifications and service steps are straightforward for typical repairs. Functional durability under everyday driving conditions and compatibility with factory sensors and vacuum fittings were additional filters. We excluded manifolds that are marketed without clear Acadia-specific fitment data or that require major engine modification. Units that relied on proprietary adapters or omitted critical flange or sensor locations were not considered. The final list favors parts that balance reliable sealing, correct fit, and straightforward installation for the GMC Acadia.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right intake manifold for a GMC Acadia means prioritizing correct fitment, reliable sealing, and material stability. Those factors most directly influence drivability and long-term leak resistance. Balance ease of installation and serviceability against durability and gasket compatibility. When in doubt, prioritize parts that match factory mounting and sensor locations to minimize modifications and future maintenance.
Explore More:
- Check out all GMC Acadia parts & accessories
- Explore Engine
- Browse all Auto Parts
