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If you own a GMC Terrain, choosing the right engine gasket set matters for engine performance and leak prevention. The wrong gaskets or poor materials can lead to persistent oil or coolant leaks, reduced compression, and extra labor during repairs. This guide covers seven shortlisted options that meet common service needs for the GMC Terrain. We evaluated each entry on fitment accuracy and material durability, plus sealing performance and included components. Read on to see which gasket sets met those criteria and which features to watch for when replacing gaskets.
Looking for other parts? See all GMC Terrain parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Dtomi Cylinder Head Gasket Set with Head Bolts for 2.4L Engines |  |
| Most Popular A crowd favorite that many people choose with confidence | Fel-Pro Engine Overhaul Gasket Set for Small Block Chevy 283/307/327/350 |  |
| Best Quality Built to a higher standard if you want something more solid | Fel-Pro FS 8518 PT Full Engine Gasket Set |  |
| Best Budget The cheapest option that still gets the job done reliably | GXARTS Multi-Layer Steel Head Gasket Set for 2.5L Engines |  |
| Most Sold A high-volume bestseller chosen again and again | PartsFlow Engine Full Gasket Set for GM 5.7L Small‑Block V8 (1987–1995) |  |
| Best Value for Money The sweet spot between price and what you get | Fel-Pro Full Engine Gasket Set 260-1735 |  |
| Best Overall The best all-around choice for most situations | Fel-Pro HS 7733 PT-15 Complete Engine Gasket Set |  |
1. Dtomi Cylinder Head Gasket Set with Head Bolts for 2.4L Engines
| Compatible Engine | 2.4L L4 DOHC |
|---|---|
| Fitment Years | 2010-2017 |
| Contents | MLS head gasket, valve cover gasket, intake and exhaust gaskets, valve stem seals, O-rings, 14 head bolts |
| Manufacturer | Dtomi Auto Parts |
This Dtomi head gasket set is a full replacement kit intended for the 2.4L GMC Terrain (2010–2017). It supplies a multi-layer steel head gasket plus valve cover, intake and exhaust gaskets, valve stem seals, assorted O-rings and the 14 head bolts you need to rebuild the head-to-block sealing surfaces. In practice this kit lets a competent DIYer or shop replace a blown or leaking head gasket and restore combustion and coolant sealing without sourcing multiple parts separately. The MLS head gasket and included seals are rated for high and low temperatures, which helps the engine hold compression and resist coolant leaks under normal operating conditions. The main limitations are that fitment is specific to the 2.4L Timeline and you must verify the exact engine variant before ordering, and the kit does not include gaskets beyond the pictured set such as timing cover seals or additional hardware some rebuilds require. For reliability-focused buyers who want a single kit to address head gasket failure on a Terrain, this covers the usual needs and reduces the risk of missing parts during the repair.
Best for: Reliability-focused Terrain owners or independent mechanics who prioritize restoring factory-quality sealing with a single, tested kit to minimize repeat repairs.
Less Ideal for: Buyers needing a complete engine rebuild package with additional timing cover seals or internal components should consider a more comprehensive overhaul kit.
- Full kit includes MLS head gasket, manifold gaskets, valve cover gasket, valve stem seals, O-rings and 14 head bolts for a complete head rebuild
- Multi-layer steel head gasket designed to handle high thermal and pressure cycles common in combustion chambers
- Includes both long and short head bolts so no need to source additional fasteners during installation
- Packaged as a single set to simplify repairs and reduce downtime by providing most commonly replaced head sealing parts
- Fitment is limited to 2.4L GMC Terrain engines from 2010–2017 and requires verification of engine variant
- Does not include some peripheral seals and hardware that may be needed for a full top-end rebuild
Verdict A reliability-minded, all-in-one head gasket kit for the GMC Terrain 2.4L that supplies the core gaskets and head bolts needed for a dependable seal during a head repair.
2. Fel-Pro Engine Overhaul Gasket Set for Small Block Chevy 283/307/327/350
| Compatible engines | 1957-1979 small block Chevy 283, 307, 327, 350 |
|---|---|
| Rear main seal style | 2-piece rear main seal |
| Dipstick position | Left hand oil pan dipstick |
| Includes | Cylinder head, intake, valve cover, exhaust, timing cover, oil pan, water pump, fuel pump, thermostat housing gaskets, distributor gasket, valve stem O-rings, rear main seal |
This Fel-Pro engine overhaul gasket set bundles the head, intake, valve cover, exhaust, timing cover, oil pan, water pump, fuel pump, thermostat outlet, distributor, valve stem O-rings, and rear main seal needed for a full rebuild of compatible small block Chevy V8s. It is typically used when tearing down and reassembling an engine to replace all wearing seals at once, which saves time hunting individual gaskets. The kit’s broad coverage and included rear main seal make it convenient for a one-stop rebuild, and many users report good fit and reliable sealing for cylinder heads and intake components. Limitations to note are the stated fitment exclusions and occasional reports of imperfect oil pan or exhaust gasket fit in some examples, so confirm the kit matches your engine’s pan and rear-seal style before assembly. This set is a practical choice for a time-saving rebuild but may require swapping a specific gasket if exact fitment differs on your engine.
Best for: Convenience-driven buyers who prioritize a single kit that supplies most gaskets and seals for an engine teardown and rebuild and want to minimize parts sourcing and downtime.
Less Ideal for: Owners who need exact factory-match gaskets for uncommon oil pan or exhaust configurations or who prefer buying each gasket separately to guarantee exact fit.
- Comprehensive kit includes head, intake, valve cover, timing cover, oil pan, water pump, and rear main seal for a full rebuild
- Saves time by supplying most gaskets and seals in one package for overhaul jobs
- Widely reported to fit common small block Chevy heads and intake components reliably
- Not compatible with 305 and 400 V8 engines and only fits engines with a two-piece rear main seal and left-hand dipstick
- Some users report the oil pan and exhaust gaskets may require replacement or modification for perfect fit
Verdict A time-saving, all-in-one gasket kit for compatible small block Chevy rebuilds that is convenient for most overhauls but verify oil pan and exhaust fitment before installation.
3. Fel-Pro FS 8518 PT Full Engine Gasket Set
| Brand | Fel-Pro |
|---|---|
| Model | FS8518PT |
| Unit Count | 1.0 Count |
| Manufacturer Part Number | FS8518PT |
This Fel-Pro full gasket set supplies the gaskets and seals needed to rebuild or refresh an engine’s sealing surfaces. It is intended to be used during head and engine overhauls, delivering application-specific materials and machined exterior components for a tight fit and long-term sealing. Notable features include a comprehensive kit that claims to meet or exceed factory specifications and validation for fit, form, and function. In practical terms that means fewer trips to buy missing pieces during a rebuild and a higher likelihood of a reliable seal on assembly. Limitations are that the listing is an older, discontinued model and buyers should confirm vehicle compatibility before ordering; one reviewer mentioned needing to source an exhaust donut separately. For a performance-minded buyer focused on engine integrity, this set offers trusted manufacturer quality, but double-check confirmed fit notes and any supplemental gaskets you might need for specific exhaust or accessory connections.
Best for: Performance-oriented buyers who prioritize durable, factory-quality sealing when rebuilding or upgrading an engine and want a validated, comprehensive gasket set for a focused engine project.
Less Ideal for: Buyers who need a currently supported aftermarket kit with active manufacturer availability or those looking for one-off replacement gaskets rather than a full overhaul set.
- Complete kit includes gaskets and seals required for a full engine overhaul reducing the need to buy individual pieces
- Engineered and validated for fit, form, and function to match factory-style sealing requirements
- Application-specific materials and machined exterior parts intended to improve sealing durability
- Product is marked discontinued which may limit future availability or direct manufacturer support
- Some minor or specialty gaskets may not be included requiring an additional purchase
Verdict A trusted, factory-quality full gasket set aimed at performance rebuilds, but check confirmed fitment and expect to source any rare extras separately.
4. GXARTS Multi-Layer Steel Head Gasket Set for 2.5L Engines
| Fitment engine | 2.5L L4 (Ecotec) compatibility |
|---|---|
| Includes | Head gasket and common engine seals/gaskets |
| Material | Multi-Layer Steel (MLS) |
This GXARTS head gasket set is a full MLS-style replacement kit intended to reseal the cylinder head-to-block joint on compatible 2.5L engines. Typically used during an engine rebuild or after a head gasket failure, the set includes the head gasket plus common seals and gaskets needed to restore the engine’s compression and prevent coolant and oil cross-contamination. The MLS construction promises resistance to warping and stable sealing under elevated temperatures and pressures, which helps maintain compression in forced-induction or higher-stress running. Practical benefits include a comprehensive parts grouping that can save time sourcing individual gaskets and a fit engineered for the 2.5L Ecotec family so pieces align during installation. Limitations are that long-term durability depends on proper surface prep and torque procedures and that this aftermarket kit does not replace machining or repair of a warped head or block, so additional services may be required for a successful repair.
Best for: Budget-conscious DIYers who prioritize a complete, engine-specific gasket kit to finish a head gasket repair on a 2.5L Terrain engine without hunting down individual parts.
Less Ideal for: Owners seeking a plug-and-play fix for engines with warped heads or block damage or those who want a factory dealer replacement and full technical support.
- Multi-layer steel (MLS) gasket construction for improved sealing under heat and pressure
- Comprehensive kit includes major engine gaskets and common seals to simplify rebuilds
- Engineered for 2.5L Ecotec fitment so parts align without trimming
- Does not address machine work or warped surfaces which are often needed after a failure
- Long-term performance depends on correct installation and torque sequence
Verdict A cost-effective MLS head gasket kit that bundles the seals needed for a 2.5L repair but still requires proper machine work and careful installation for lasting results.
5. PartsFlow Engine Full Gasket Set for GM 5.7L Small‑Block V8 (1987–1995)
| Fits Engines | GM 5.7L (350 cu in) TBI V8, 1987–1995 |
|---|---|
| OE Numbers | 260-1269, KS2666, T598122 |
| Manufacturer | PartsFlow |
This PartsFlow engine full gasket set supplies the range of gaskets and seals normally replaced when servicing a GM 5.7L (350 cubic inch) throttle body injected V8 from the late 1980s through 1995. It is designed as an aftermarket direct replacement to restore sealing surfaces during rebuilds or head and timing cover work. The kit lists common items such as valve cover and timing cover gaskets and includes a tube of RTV gasket maker so you do not have to source sealant separately. Buyers report generally solid fit and gasket thickness comparable to factory pieces, which makes installation straightforward for mechanics and experienced DIYers. Where this kit falls short is inconsistent packing: some orders lacked the head gasket(s) according to a few customer reports, so inspect contents on receipt. Also this is a factory-replacement style kit rather than an upgraded performance gasket set, so users seeking improved sealing for high-boost or heavy-duty applications should consider premium alternatives.
Best for: Risk-averse mainstream buyers who want an economical, factory-style gasket kit to restore proper sealing on a GM 5.7L 350 V8 during routine rebuilds or maintenance.
Less Ideal for: People building high-performance, high-boost, or heavy-duty engines who need upgraded sealing materials and higher-spec head gaskets.
- Complete range of common engine gaskets and seals for GM 5.7L TBI V8 service
- Includes RTV gasket maker so you do not need to buy sealant separately
- Aftermarket parts made to match factory fitment for straightforward replacement
- Multiple buyers report good gasket thickness and fit comparable to factory parts
- Some orders reported missing head gaskets or incomplete packing requiring seller follow-up
- Not an upgraded performance gasket set so it is not optimized for high-boost or racing builds
Verdict A budget-friendly, factory-replacement gasket kit for GM 5.7L 350 V8 maintenance that mostly fits and performs like the originals but requires careful content checks on delivery.
6. Fel-Pro Full Engine Gasket Set 260-1735
| Brand | Fel-Pro |
|---|---|
| Manufacturer | Fel-Pro |
| Model | 260-1735 |
This Fel-Pro full gasket set supplies the seals and gaskets needed when doing a head gasket job or complete engine refresh on a compatible GMC Terrain. The kit is built with application-specific materials and includes the components technicians expect to complete a repair without hunting for extra parts. In practice it installs like a factory replacement: gaskets are flexible enough to sit in place during assembly and the kit is intended to meet or exceed factory specifications. That delivers reliable sealing and reduces the chance of oil or coolant leaks after reassembly. Limitations to be aware of are that this is a parts-only kit so any worn bolts, seals outside the set, or machine work must be addressed separately, and fitment must be confirmed for your Terrain variant before ordering. For a practical owner doing a repair or a small shop focused on value, this set covers the basics with quality that matches a factory-style rebuild.
Best for: Practical optimizers who want a factory-quality gasket set that covers the parts needed for an engine reseal and helps avoid multiple small purchases during a DIY repair or budget-conscious shop job.
Less Ideal for: Owners looking for a one-stop complete rebuild solution including hardware, machined parts, or machining services should consider a more comprehensive package or sourcing fasteners separately.
- Complete kit includes all major engine gaskets and seals needed for a head gasket or full engine reseal
- Application-specific materials designed to match factory sealing locations and performance
- Flexible gasket materials that align and stay in place during assembly
- Meets or exceeds factory specifications for reliable sealing
- Does not include replacement head bolts or fasteners that are often recommended for torque-critical assemblies
- Requires confirming vehicle-specific fitment before purchase to ensure compatibility with your Terrain
- Does not address machining or other engine repairs that may be necessary during a rebuild
Verdict A practical, factory-quality full gasket set that delivers the core gaskets needed for a value-focused GMC Terrain engine reseal, but plan to source bolts or machining separately.
7. Fel-Pro HS 7733 PT-15 Complete Engine Gasket Set
| Brand | Fel-Pro |
|---|---|
| Material | Graphite, Nonstick, Steel |
| Exterior | Machined |
| Manufacturer Part Number | HS7733PT15 |
The Fel-Pro HS 7733 PT-15 is a full gasket kit intended to supply the seals and gaskets required when performing a head service or engine overhaul on compatible vehicles. It bundles head gaskets, valve cover gaskets, intake and exhaust seals, and additional sealing components along with a nonstick anti-friction coating and steel-reinforced construction where needed. In typical use you receive a single kit that covers the top-end sealing surfaces so you do not have to source individual pieces during a repair. The steel-core head gaskets reduce the need for retorquing head bolts and the proprietary facing materials are engineered to seal imperfect surfaces common on used engines. Practical benefits include professional-grade fit, reduced parts hunting, and materials meant to withstand repeated thermal cycles. Limitations are that contents vary by exact kit number so you should confirm the kit matches your GMC Terrain engine and you may still need additional gaskets like water pump seals depending on the repair scope.
Best for: Practical, balanced buyers who want a reliable, factory-quality gasket set that covers most top-end service tasks and reduces time spent sourcing parts.
Less Ideal for: If you prefer a guaranteed parts list for an exact engine rebuild or need every possible auxiliary gasket included, this kit may require supplementary parts or a more specific OEM-matched kit.
- Complete top-end gasket coverage for a standard head service
- Steel-core head gaskets designed to minimize need for retorque
- Proprietary nonstick coating and reinforced facing materials for improved sealing on imperfect surfaces
- Includes multiple related gaskets and a gasket sealer to reduce part sourcing during a repair
- Kit contents can differ between part numbers so it may not include every gasket needed for a specific repair
- Some buyers report packaging damage on arrival which can bend larger gaskets
Verdict A trustworthy, professional-grade head gasket kit that covers most top-end repairs but check the exact kit contents against your GMC Terrain engine before ordering.
Choosing the Right GMC Terrain Engine Gasket Set: Key Factors to Consider
Fitment and Engine Compatibility
Correct fitment to the GMC Terrain engine is essential because gasket geometry must match mating surfaces exactly. An ill-fitting gasket can lead to uneven sealing pressure and create new leak paths.
Confirming compatibility eliminates guesswork during installation and reduces time spent cross-referencing parts. Fitment matters for head gaskets, intake and exhaust manifold gaskets, timing cover gaskets, and seals for the crank and camshafts.
Gasket Material and Construction
Material choice affects sealing longevity and resistance to heat, oil, and coolant. Multilayer steel, composite, or reinforced elastomer constructions each offer different strengths in resisting combustion pressures, thermal cycling, and chemical exposure.
Selecting the right construction for the specific sealing location—head, intake, or oil passages—helps prevent premature failure and can withstand the temperature ranges the GMC Terrain engine experiences.
Completeness of the Kit
A complete gasket kit reduces parts sourcing and prevents installation delays. Kits that include head gaskets, intake and exhaust manifold gaskets, valve cover gaskets, oil pan gasket, timing cover gasket, and common seals cover most service needs.
Missing components mean additional orders and potentially redoing work, so prioritize kits that supply the seals and gaskets you will likely need for the job you plan to do.
Sealing Surface Preparation and Installation Ease
Some gasket materials and designs are more forgiving of minor surface imperfections; others require meticulous cleaning and preparation. Ease of installation affects labor time and the likelihood of errors that can cause leaks.
Consider whether the kit includes alignment dowels, pre-applied sealant on parts, or clear instructions that reduce installation mistakes and improve the chance of a one-time successful seal.
Resistance to Oil and Coolant Exposure
Gaskets in contact with oil or coolant must resist chemical degradation. Materials that swell, soften, or break down when exposed to fluids will fail sooner, leading to leaks and possible engine damage.
Choose gasket materials rated for the fluids and temperature ranges encountered in normal and high-load operating conditions to maintain long-term sealing performance.
Thermal and Pressure Durability
Engine gaskets must tolerate cyclic thermal expansion and the pressure variations of combustion. Head gaskets, in particular, require robust pressure resistance while maintaining a seal under repeated heating and cooling.
Assess whether gasket materials and designs are specified for the pressures and temperatures typical of the engine, as this impacts longevity and reduces the chance of head gasket or exhaust leaks over time.
FAQ
How do I know which gasket set fits my GMC Terrain?
Fit is determined by engine displacement, year, and specific engine code. Check your vehicle identification details or engine stamping and match those to the gasket set’s stated fitment. If fitment information is unclear, verify the included components and compare them to the parts you remove during disassembly.
Can I replace multiple gaskets at once during a repair?
Replacing multiple gaskets during a single service is common and often practical because many gaskets are accessible only when adjacent components are removed. Doing several at once can save labor and reduce the risk of future leaks from overlooked seals.
Should I reuse old bolts and fasteners when installing new gaskets?
Reusing bolts depends on their condition and whether they are torque-to-yield type. Many manufacturers recommend replacing torque-to-yield bolts and any fasteners that show wear or damage. Using correct torque values and new fasteners when specified helps ensure a reliable seal.
Does a complete gasket kit include all seals needed for an engine overhaul?
A true overhaul kit typically includes major gaskets and seals, but packages vary. Confirm the kit lists head gaskets, crank and cam seals, valve cover gaskets, oil pan gasket, and other critical items. If any item is missing, you may need to source that component separately.
What causes gasket failures after replacement?
Common causes include improper surface preparation, incorrect torque sequence or values, using damaged or reused fasteners, and material mismatch for the application. Thermal distortion of mating surfaces and lingering warpage can also prevent proper sealing even with new gaskets.
How We Chose the Best GMC Terrain Engine Gasket Set
We prioritized gasket sets that match the GMC Terrain engine configurations and include the parts technicians most commonly replace during routine repairs or an overhaul. Evaluation criteria included fitment accuracy to factory sealing surfaces, gasket material and coating quality, the completeness of included seals and gaskets for typical repairs, and the presence of essential engine seals such as crank and camshaft seals. We also considered documented durability characteristics such as heat and chemical resistance of sealing materials and whether the kit included modern multilayer steel or reinforced elastomer where applicable. Ease of installation and whether the kit reduces the need to source additional seals were factored in as well. Excluded were partial kits that omit core components required for a full service on the GMC Terrain engine, one-off specialty gaskets not applicable to common repairs, and items without clear fitment data. The final selection favors kits that simplify installation, reduce the chance of repeat leaks, and align with common repair workflows for this vehicle.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a GMC Terrain engine gasket set, prioritize correct fitment to your engine, the right gasket materials for the application, and kits that include the seals you will need for the job. Balancing material durability against installation ease will reduce the chance of repeat leaks. Remember that proper surface preparation and correct fasteners and torque procedures are as important as the gasket choice. Focus on reducing installation variables and selecting a complete kit that matches the engine configuration to get the best long-term sealing performance.
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