You’ll want dependable, OEM‑matched thermostats that restore warm‑up, prevent overheating, and fit without mods. Top picks include direct‑fit Honda/Acura units (19301‑PAA‑306/19301‑RNA‑315), high‑performance stainless/copper replacements with gaskets, Toyota/Lexus OEM equivalents (90916‑A3003), GM Genuine 131‑120 (24505924), Gates OE‑type options, and Dorman housings for complete swaps. Check exact part numbers, opening temp, materials and included seals before you buy — keep going and you’ll get full fitment, material and performance details.
| Car Thermostat Replacement for Honda CRV/Civic/CRZ |
| Best Fitment Match | Compatibility: Honda/Acura models (CRV, Civic, CRZ, Integra, Odyssey, etc.) | Replaces OEM / Part Numbers: Replaces 19301-PAA-306, 19301-RNA-315, 19301-PLC-315 (and variants) | Material / Construction: Rubber + Iron | VIEW LATEST PRICE | Read Our Analysis |
| Car Coolant Thermostat Compatible with Honda Acura |
| Wide Compatibility | Compatibility: Honda/Acura models (Civic, CRZ, CRV, Insight, Prelude, Integra, Legend) | Replaces OEM / Part Numbers: Replaces 19301PAA306, 19301-PAA-306, 19301RNA315, 19301-PLC-315 | Material / Construction: Brass and Iron | VIEW LATEST PRICE | Read Our Analysis |
| High-Performance Car Thermostat with Gasket for Honda |
| High-Performance Pick | Compatibility: Honda/Acura (Accord, Prelude, CRV, Integra, CL, ILX, CRZ, etc.) | Replaces OEM / Part Numbers: Replaces 19301-PAA-306, 19301-PLC-315 (and variants) | Material / Construction: Stainless steel and Copper components | VIEW LATEST PRICE | Read Our Analysis |
| Car Thermostat Compatible with Honda Acura (OEM) |
| Heavy-Duty OEM-style | Compatibility: Honda/Acura (Civic, Accord, CRV, CRZ, Integra, EL, CL, ILX, etc.) | Replaces OEM / Part Numbers: Replaces 19301PAA306, 19301-PAA-306, 19301RNA315, 19301-PLC-315 | Material / Construction: Metal and Rubber (machined exterior) | VIEW LATEST PRICE | Read Our Analysis |
| Coolant Thermostat Fit for Toyota & Lexus Vehicles |
| Toyota/Lexus Specialist | Compatibility: Toyota/Lexus models (Avalon, Camry, Corolla, RAV4, Prius, RX350, ES350, etc.) | Replaces OEM / Part Numbers: Identified by Toyota part numbers 90916-A3003 / 90916A3003 / 90916-03129 | Material / Construction: Quality OEM-grade materials (unspecified metals/plastics per listing) | VIEW LATEST PRICE | Read Our Analysis |
| Aluminium Thermostat Housing Assembly for 2011-2020 Chevy Cruze |
| Durable Upgrade | Compatibility: GM fleet (Chevy Cruze, Sonic, Trax; Buick Encore) 1.4L 2011–2020 | Replaces OEM / Part Numbers: Replaces OEM numbers 25200455, 55565336, 55579010, 55593034, 34709, etc. | Material / Construction: Aluminum alloy housing | VIEW LATEST PRICE | Read Our Analysis |
| GM Genuine Parts 131-120 (24505924) Engine Coolant Thermostat with Gasket |
| OEM Replacement | Compatibility: GM vehicles (ACDelco / GM Genuine Parts; vehicle-specific GM fitment) | Replaces OEM / Part Numbers: OEM part number 24505924 (ACDelco model 131-120) | Material / Construction: Metal (OEM ACDelco construction) | VIEW LATEST PRICE | Read Our Analysis |
| Dorman Engine Coolant Thermostat Housing Assembly |
| Value Replacement | Compatibility: Vehicle-specific (aftermarket housing; verify fit by make/model) | Replaces OEM / Part Numbers: Aftermarket housing replacing original water outlet (part-specific cross-references via lookup) | Material / Construction: Engineered replacement materials (aftermarket durable metals/plastics) | VIEW LATEST PRICE | Read Our Analysis |
| Gates 33008 OE Type Engine Coolant Thermostat |
| OE-Calibrated | Compatibility: OE-type — vehicle-specific fit (Gates part 33008; replaces listed OEM numbers) | Replaces OEM / Part Numbers: Replaces various OEM numbers listed (e.g., 105000106400, 1447384M1, RE33705) | Material / Construction: Metal (Gates OE-type construction) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Car Thermostat Replacement for Honda CRV/Civic/CRZ
In case you drive a Honda CR-V, Civic, or CR-Z and need a reliable, direct-fit replacement, the Tuxihapp THT-294 thermostat is built to match common OEM numbers (19301‑PAA‑306, 19301‑RNA‑315, 19301‑PLC‑315) so you can swap it in without modification and get your cooling system back to proper temperature control. You’ll install this compact, painted silver unit quickly: remove the old thermostat and plug this one in—no special tools. Made of rubber and iron, it’s heat-, corrosion- and wear-resistant, weighs 3.04 ounces, and fits specified Honda/Acura years; confirm your model before buying.
- Compatibility:Honda/Acura models (CRV, Civic, CRZ, Integra, Odyssey, etc.)
- Replaces OEM / Part Numbers:Replaces 19301-PAA-306, 19301-RNA-315, 19301-PLC-315 (and variants)
- Material / Construction:Rubber + Iron
- Function (Thermostat / Cooling Control):Regulates coolant flow and engine temperature; prevents overheating
- Installation / Fitment Notes:Plug-and-play; remove original, install replacement; no extra tools claimed
- Durability / Resistance Properties:Heat-resistant, wear-resistant, corrosion- and rust-resistant, impact-resistant
- Additional Feature:Plug-and-play installation
- Additional Feature:Compact portable size
- Additional Feature:Seller 30-day returns
Car Coolant Thermostat Compatible with Honda Acura
In case you drive a Honda or Acura from the late ’80s through the mid‑2010s and need a direct, OEM‑numbered replacement, this coolant thermostat is a top pick; it swaps right into models like Civic, CR‑V, Integra, and Legend and matches numbers such as 19301‑PAA‑306 and 19301‑RNA‑315. You’ll get brass and iron construction for strength and heat resistance, a rubber washer seal to prevent spillage, and a compact 2.40×2.40×2.26‑inch profile that’s easy to handle. It maintains proper engine temperature, prevents oil overconsumption from a failing thermostat, and installs as a direct swap—verify OEM number and model before buying.
- Compatibility:Honda/Acura models (Civic, CRZ, CRV, Insight, Prelude, Integra, Legend)
- Replaces OEM / Part Numbers:Replaces 19301PAA306, 19301-PAA-306, 19301RNA315, 19301-PLC-315
- Material / Construction:Brass and Iron
- Function (Thermostat / Cooling Control):Maintains engine operating temperature; prevents oil consumption increases
- Installation / Fitment Notes:Direct replacement; remove old unit and install new; professional optional
- Durability / Resistance Properties:High strength/hardness, wear-resistant, durable, temperature resistant
- Additional Feature:Rubber washer sealing
- Additional Feature:Brass and iron construction
- Additional Feature:Advises professional optional
High-Performance Car Thermostat with Gasket for Honda
Choose this high-performance thermostat in case you want a direct OEM-fit replacement for many Honda and Acura models—it’s built to the factory size and installs without modification, and it comes with a gasket so you can swap it in and get back on the road quickly. You’ll get a unit that replaces 19301-PAA-306 / 19301-PLC-315 and fits many Accords, Preludes, Civics, CR-Vs, Odysseys, Integras, Legends, ILX, CL, EL and CRZ years listed. Stainless steel and copper resist heat, corrosion and rust; housing treatments improve sealing. It regulates coolant flow, preventing overheating or poor warm-up. Confirm fit before ordering.
- Compatibility:Honda/Acura (Accord, Prelude, CRV, Integra, CL, ILX, CRZ, etc.)
- Replaces OEM / Part Numbers:Replaces 19301-PAA-306, 19301-PLC-315 (and variants)
- Material / Construction:Stainless steel and Copper components
- Function (Thermostat / Cooling Control):Controls coolant flow; prevents overheat/overcool; includes gasket
- Installation / Fitment Notes:Direct OEM-size replacement; installs without modification; includes gasket
- Durability / Resistance Properties:High temperature resistance, corrosion resistant, rust resistant; enhanced sealing
- Additional Feature:Includes gasket
- Additional Feature:Stainless steel & copper
- Additional Feature:Factory-data matched
Car Thermostat Compatible with Honda Acura (OEM)
Should you drive a Honda or Acura model listed in the fitment notes, this heavy-duty OEM-compatible thermostat is a smart pick thanks to its exact replacement numbers (19301-PAA-306, 19301-RNA-315, 19301-PLC-315) and machined metal construction that resists rust. You’ll get a compact 2.38 x 2.38 x 2.15-inch unit (3.9 oz) made of metal and rubber, inside-mounted for reliable temp control. It helps maintain operating temperature, reducing excess fuel use and engine wear if replaced promptly. Check OEM/size/year/model before installation. The kit includes one thermostat; professional installation and seller support are recommended.
- Compatibility:Honda/Acura (Civic, Accord, CRV, CRZ, Integra, EL, CL, ILX, etc.)
- Replaces OEM / Part Numbers:Replaces 19301PAA306, 19301-PAA-306, 19301RNA315, 19301-PLC-315
- Material / Construction:Metal and Rubber (machined exterior)
- Function (Thermostat / Cooling Control):Maintains engine operating temperature; reduces excess fuel consumption/wear
- Installation / Fitment Notes:Direct replacement; may require professional installation guidance
- Durability / Resistance Properties:Heavy duty, rust proof, premium metal/rubber construction
- Additional Feature:Heavy-duty machined exterior
- Additional Feature:6-month defect return
- Additional Feature:Inside-mounted position
Coolant Thermostat Fit for Toyota & Lexus Vehicles
Designed for Toyota and Lexus owners who need a direct, OEM‑standard replacement, this coolant thermostat (90916‑A3003 / 90916A3003 / 90916‑03129 / 9091603129) delivers stable, long‑lasting performance and installs without special tools or programming. You’ll find fitment across many models—Avalon, Camry, Corolla, Highlander, Prius, RAV4, Tacoma, Lexus ES/GS/LS/RX series and more—covering 2001–2019 years. It meets OEM specs, uses quality materials, and ships boxed after testing. Install through removing the old unit, disconnecting the connector, plugging in the new thermostat and clearing codes; no calibration needed. Check photos and part numbers before buying. One‑year warranty and seller support included.
- Compatibility:Toyota/Lexus models (Avalon, Camry, Corolla, RAV4, Prius, RX350, ES350, etc.)
- Replaces OEM / Part Numbers:Identified by Toyota part numbers 90916-A3003 / 90916A3003 / 90916-03129
- Material / Construction:Quality OEM-grade materials (unspecified metals/plastics per listing)
- Function (Thermostat / Cooling Control):Regulates coolant/temperature; direct replacement to restore performance
- Installation / Fitment Notes:Direct replacement; easy install; no calibration or programming
- Durability / Resistance Properties:Stable, durable, long-lasting; meets OEM standards
- Additional Feature:Box packaged
- Additional Feature:One-year warranty
- Additional Feature:OEM-standard specification
Aluminium Thermostat Housing Assembly for 2011-2020 Chevy Cruze
In case you’re looking for a durable upgrade for 2011–2020 Chevy Cruze and related 1.4L models, this aluminium thermostat housing assembly delivers superior corrosion and heat resistance compared with standard housings. You’ll get an aluminum alloy unit compatible with multiple Chevy, Sonic, Trax and Buick Encore 1.4L models; confirm OEM numbers (25200455, 55565336, 55579010, 55593034, 34709, 902-808, 730-221) before buying. It starts up at 95 °C (203 °F), resists cracking, leaks and chemical attack, and maintains ideal engine temperatures. Install one to improve cooling reliability, reduce maintenance frequency and lower repair risk.
- Compatibility:GM fleet (Chevy Cruze, Sonic, Trax; Buick Encore) 1.4L 2011–2020
- Replaces OEM / Part Numbers:Replaces OEM numbers 25200455, 55565336, 55579010, 55593034, 34709, etc.
- Material / Construction:Aluminum alloy housing
- Function (Thermostat / Cooling Control):Controls thermostat function within housing; maintains optimal temperature (95°C startup)
- Installation / Fitment Notes:Bolt-on housing assembly; verify part number before installation
- Durability / Resistance Properties:Corrosion and oxidation resistant; withstands high temperatures and chemicals
- Additional Feature:Aluminium alloy housing
- Additional Feature:Higher crack resistance
- Additional Feature:95 °C startup temp
GM Genuine Parts 131-120 (24505924) Engine Coolant Thermostat with Gasket
Choose the GM Genuine Parts 131-120 (24505924) in case you want a direct OEM replacement that matches original fit and durability for GM vehicles. You’ll get a metal thermostat and gasket designed to control coolant flow so the engine reaches and maintains proper operating temperature. It’s manufactured through ACDelco/GM Genuine Parts to GM specifications, fits vehicle-specific applications, and carries nationwide dealership warranty support; Amazon’s return policy often applies. The unit is compact (2.1 x 3.1 x 2 inches), weighs about 2.08 ounces, runs on 12V systems, and features a machined matte finish. Ignore unrelated listing metadata.
- Compatibility:GM vehicles (ACDelco / GM Genuine Parts; vehicle-specific GM fitment)
- Replaces OEM / Part Numbers:OEM part number 24505924 (ACDelco model 131-120)
- Material / Construction:Metal (OEM ACDelco construction)
- Function (Thermostat / Cooling Control):Controls coolant flow to maintain normal engine operating temperature (includes gasket)
- Installation / Fitment Notes:OEM replacement kit (thermostat + gasket); installs like original
- Durability / Resistance Properties:OEM-quality durability per GM/ACDelco standards
- Additional Feature:Genuine OEM part
- Additional Feature:Nationwide dealership warranty
- Additional Feature:Includes gasket
Dorman Engine Coolant Thermostat Housing Assembly
Should you need a cost-conscious, direct replacement for a cracked or leaking water outlet, the Dorman 902-3036 Engine Coolant Thermostat Housing Assembly delivers reliable performance and temperature resistance that matches many original units — just verify fit for your vehicle year, make, and model before buying. You’ll restore proper coolant flow and thermostat housing function with an aftermarket part engineered to resist cracking and leaking under extreme temperatures. Dorman’s professional design aims to meet original-equipment performance while offering a more affordable alternative to dealer parts. Use the vehicle lookup to confirm compatibility, then install this housing assembly as a direct replacement.
- Compatibility:Vehicle-specific (aftermarket housing; verify fit by make/model)
- Replaces OEM / Part Numbers:Aftermarket housing replacing original water outlet (part-specific cross-references via lookup)
- Material / Construction:Engineered replacement materials (aftermarket durable metals/plastics)
- Function (Thermostat / Cooling Control):Restores proper coolant flow and thermostat housing function (replaces outlet)
- Installation / Fitment Notes:Direct replacement housing assembly; verify fit via lookup/tool
- Durability / Resistance Properties:Engineered to resist cracking and leaking; temperature resistant
- Additional Feature:Aftermarket engineered design
- Additional Feature:Direct water-outlet replacement
- Additional Feature:Cost-effective alternative
Gates 33008 OE Type Engine Coolant Thermostat
Should you want an OE-type replacement that’s factory-calibrated for reliable opening and closing under changing pressures, the Gates 33008 is built for you—especially should you need a center-position, vehicle-specific thermostat that matches several OEM numbers. You’ll get a Gates-made 33008 thermostat (0.8 oz) that’s calibrated to perform like the original, fitting vehicles that list OEM references such as 105000106400, 1447384M1, 4025103, 4513524, and RE33705. It was initially available in 2005, made in China, and is listed as discontinued, so you might find limited stock. Amazon offers a voluntary 30-day return guarantee.
- Compatibility:OE-type — vehicle-specific fit (Gates part 33008; replaces listed OEM numbers)
- Replaces OEM / Part Numbers:Replaces various OEM numbers listed (e.g., 105000106400, 1447384M1, RE33705)
- Material / Construction:Metal (Gates OE-type construction)
- Function (Thermostat / Cooling Control):OE-type thermostat controlling opening/closing to manage coolant flow
- Installation / Fitment Notes:OE-type direct replacement; vehicle-specific installation
- Durability / Resistance Properties:Factory-calibrated OE-type durability for consistent operation
- Additional Feature:OE-type calibrated
- Additional Feature:Long market history
- Additional Feature:China country of origin
Factors to Consider When Choosing Car Engine Thermostats
Upon choosing a thermostat, you should initially confirm compatibility with your vehicle and the correct temperature opening point for your engine. Check materials and build quality for durability, plus seal and gasket condition to prevent leaks. Also consider flow rate and design to make certain proper coolant circulation and efficient engine warm-up.
Compatibility With Vehicle
How do you know a replacement thermostat will fit and function correctly in your car? Start at verifying the OEM part number or exact dimensions—top diameter and total height—against your service manual so it seats properly. Confirm the part is listed for your vehicle’s make, model, engine code and year range; designs often vary across production years. Check that the thermostat includes the correct gasket or seal type and matches your housing’s mounting style to prevent leaks. Be certain the opening temperature matches the OEM value for your engine. Should your car use a thermostatically controlled housing or an integrated sensor, verify the replacement has the same sensor ports and connector locations so all fittings and electrical connections align.
Temperature Opening Point
After confirming fit and sensor alignment, you need to pick the correct temperature opening point because it directly controls engine warm-up, fuel efficiency, emissions and cabin heat. Choose a rated full-open temperature (commonly 72–95°C / 162–203°F) that matches your vehicle’s specifications; thermostats typically begin to crack open a few degrees below their rating for gradual flow. Picking one that opens too soon risks overcooling and worse fuel economy; too late risks overheating and added wear. Modern engines and emissions systems are tuned for specific opening points, so stay within a few degrees of OEM recommendation. Also prefer thermostats with tight tolerances and predictable hysteresis so opening/closing behavior remains consistent over repeated thermal cycles.
Material And Durability
Because the thermostat sits in constant contact with hot, corrosive coolant, pick units built from corrosion‑resistant metals (stainless steel, brass, or properly treated iron) and high‑temperature elastomers so parts resist rust, swelling, and degradation. You’ll get longer service life from plated or painted finishes and stamped or machined housings that fend off pitting and surface corrosion which can cause sticking or leaks. Choose heat‑rated springs and components specified for repeated cycles above typical operating temperatures so opening points stay consistent. Durable, coolant‑rated seals and rubber washers reduce seepage risk compared with generic rubber that hardens or cracks. Finally, prioritize sturdy mechanical construction and wear‑resistant moving parts to minimize deformation and sticking from scale buildup, lowering replacement frequency.
Seal And Gasket Quality
Whenever you pick a thermostat, don’t skimp on the seal or gasket—these small parts keep coolant in and air out under repeated heat cycles and system pressure. You should choose seals made from heat-resistant materials like EPDM, silicone, or high-temp composites that stay flexible at continuous coolant temps up to about 120–130 °C. Prefer corrosion- and chemical-resistant compounds that resist glycol-based coolants and additives without swelling or cracking over typical 3–5 year service intervals. Be certain of dimensional fit and a uniform sealing surface so the gasket matches the housing flange and bolt pattern, preventing leaks at common system pressures (1–2 bar). Use new integrated O-rings or bonded gaskets, torque to spec, and inspect during maintenance for hardening or residue to avoid air ingress and coolant loss.
Flow Rate And Design
Seals and gaskets keep the system tight, but the thermostat’s flow rate and internal design determine how that sealed coolant actually moves and cools the engine. You should check flow rate (L/min or GPM) because it sets cooling capacity and warm‑up time. Look at valve opening profile and orifice design — gradual versus abrupt opening, or single versus multi‑stage ports — since they shape temperature stability under changing loads. Note pressure drop and flow path geometry: high head loss can restrict circulation at high RPMs, so pick low‑loss designs for high‑output or forced‑induction engines. Inspect internal bypass passages and spring tension to guarantee minimum flow when closed, aiding heater performance and avoiding hot spots. Match the thermostat to pump capacity and radiator sizing to prevent overheating or slow warm‑up.
Ease Of Installation
Should you pick a thermostat, consider how much work it takes to swap it in — direct-fit, plug-and-play units save time and keep you from modifying hoses or housings, while models that need housing removal, torque-specified fasteners, or specialty tools raise the skill and time required. Check whether the part truly matches OEM dimensions, mounting pattern, and part number so you can drop it in without cutting or reshaping. Favor units that include seals or gaskets and match flange thickness to avoid leaks and guarantee correct compression. Look for clear instructions, specified opening temperature and orientation, and observe required tools, coolant-draining, or bleeding steps. Choosing a unit with minimal prep and integrated components will shorten the job and reduce errors.
OEM Cross References
Because a thermostat that looks right can still be wrong for your engine, always verify OEM cross-reference numbers before you buy. You should confirm the replacement lists the exact OEM part number(s) or cross-reference entries for your make, model year, and engine code to avoid fitment issues, housing interference, or improper valve seating. Don’t rely on visual matches; use manufacturer or official parts-catalog cross-reference charts to map OEM-to-aftermarket compatibility. Make certain the cross-reference specifies the thermostat opening temperature (°C/°F) and correct housing orientation, since similar-looking units can differ critically. In case an OEM number has superseded revisions, check the cross-reference for supersession or revision history so the replacement matches the latest correct specification.
Warranty And Support
While warranties vary widely, you should always confirm the length and exact coverage before buying a thermostat so you know whether it protects against defects, premature failure, or only returns. Check typical lengths (often 30 days to one year) and that coverage explicitly includes defects and premature failure, not just return rights. Verify requirements to keep coverage—professional installation, proof of purchase, retained packaging, or installation records—and follow them. Confirm whether the policy offers repair, replacement, or refund, and whether it covers consequential damage like engine harm from failure. Look for clear claim channels (phone, email, authorized centers) and expected response times. Also ask about a separate return or satisfaction guarantee and any restocking or return-shipping fees upfront.
