1981 Isuzu I-MARK Engine Cooling Parts
Keep Your 1981 Isuzu I-MARK in Top Shape with Quality Engine Cooling Parts
Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 1981 Isuzu I-MARK looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radiator Caps, Thermostats, and Coolant Temperature Sensors. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Engine Cooling Parts from Trusted Brands
Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium, FELPRO, and Imperial. For example, Carquest Premium Engine Cooling Parts start at just $14.99 with an average 4.4 star rating. FELPRO and Imperial offer similar pricing and quality, backed by strong customer feedback. With over 725 reviews and a solid 4 star average, you can shop with confidence knowing other Isuzu I-MARK owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1981 Isuzu I-MARK Engine Cooling Part at Advance Auto Parts is around $32.90, with a range that starts at $2.49 and goes up to $108.99. With 25 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like High Flow Thermostat: 170 Degrees, Coolant Temperature Sensor, and Adjustable Thermostatic Fan Control start at just $14.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts. At Advance Auto Parts, we’re here to help you keep your 1981 Isuzu I-MARK in peak condition, inside and out.
Find Your Specific 1981 Isuzu I-MARK Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 1981 Isuzu I-MARK? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Isuzu I-MARK. Whether you’re driving a 1981 model or another popular model year like
1982,
1983,
1984,
1985,
1986,
1987,
1988, and
1989, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.
Essential 1981 Isuzu I-MARK Engine Cooling Parts
Imperial – Thermostatic Fan Control – Preset (Part No.226206)
from
$46.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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Product Features:
- Preset thermostatic fan control
- 185 Deg. F preset
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Imperial – Adjustable Thermostatic Fan Control (Part No.226203)
from
$23.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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Product Features:
- Economy adjustable thermostatic fan control
- Economy Model; 32-248 Deg. F
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Carquest Premium – Radiator Cap: 16 PSI (Part No.10233)
from
$14.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Radiator Cap: 16 PSI (Part No.10330)
from
$13.49
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
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Product Features:
- Safety lever to vent coolant pressure before removal
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Coolant Temperature Switch 1TS1218 (Part No.WTC1066)
from
$15.99
Product Features:
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- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
- OE precision matched thermistor ensuring Motorad sensors match OE output resistances across all temperature positions
- O-rings, seals or thread sealant are included if required
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Coolant Temperature Sensor 1TS1222 (Part No.WTC1057)
from
$31.99
Product Features:
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- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
- OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
- O-rings, seals or thread sealant are included if required
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Radiator Cap: 16 PSI (Part No.10230)
from
$10.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Radiator Cap: 16 PSI (Part No.10226)
from
$9.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Imperial – Electric Fan, 10" Diameter (Part No.226110)
from
$72.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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Product Features:
- Rapid-Cool Thin-Line electric fans
- 10″ Diameter
- 650 CFM
- Use as a pusher or puller fan
- Motors built and tested to quality specifications
- 10 in. universal fit reversible fan
- 650 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
Dorman – Coolant Housing/Water Outlet: with Housing and Gasket, 180 Degree Neck Angle (Part No.902-2058)
from
$13.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
Carquest Premium – Standard Thermostat: 170 Degrees (Part No.241-170)
from
$15.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13778)
from
$15.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13399)
from
$10.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Dorman – Help – Radiator Drain Cocks (Part No.61110)
from
$8.99
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.
Product Features:
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Product Features:
- Direct replacement – this radiator drain petcock matches the fit and function of the original equipment part
- Durable construction – this part is made of quality materials for a long service life
- Saves money – offers original equipment quality at a competitive price
- Quality assured – this petcock has undergone virtual testing to assure proper fit and function
Carquest Premium – Engine Coolant Temperature Sender (Part No.WTA1614)
from
$9.99
The engine coolant temperature sender, not to be confused with the engine coolant temperature sensor, is located anywhere within the engine cooling system and contains a thermistor that changes in resistance value as the thermistors ambient temperature changes. The engine coolant temperature sender is fed 12 volts and is typically used in conjunction with a gauge in the instrument cluster to provide a visual representation of the engine coolant temperature condition.
Product Features:
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Product Features:
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
- Thermally conductive grease within the housing providing the most accurate temperature transfer from the engine to the thermistor.
- Plated brass or aluminum housings to prevent housing corrosion, ensures effective heat distribution to thermal element, and ensure a secure and leak-free thread mount.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the connector terminal design process ensures speed-to-market and a precise connector fit guaranteed.
Carquest Premium – Engine Coolant Temperature Sender (Part No.WTA1658)
from
$17.99
The engine coolant temperature sender, not to be confused with the engine coolant temperature sensor, is located anywhere within the engine cooling system and contains a thermistor that changes in resistance value as the thermistors ambient temperature changes. The engine coolant temperature sender is fed 12 volts and is typically used in conjunction with a gauge in the instrument cluster to provide a visual representation of the engine coolant temperature condition.
Product Features:
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Product Features:
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
- Thermally conductive grease within the housing providing the most accurate temperature transfer from the engine to the thermistor.
- Plated brass or aluminum housings to prevent housing corrosion, ensures effective heat distribution to thermal element, and ensure a secure and leak-free thread mount.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the connector terminal design process ensures speed-to-market and a precise connector fit guaranteed.
Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)
from
$14.99
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.
Product Features:
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Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Imperial – Electric Fan, 12" Diameter (Part No.226112)
from
$108.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Rapid-Cool Thin-Line electric fans
- 12″ Diameter
- 800 CFM
- Use as a pusher or puller fan
- Motors built and tested to quality specifications
- 12 in. universal fit reversible fan
- 800 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
Felpro – Water Outlet Gasket (Part No.25581)
from
$2.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Popular 1981 Isuzu I-MARK Engine Cooling Parts Categories
Most Popular Radiator Caps for 1981 Isuzu I-MARKs
Enhance your 1981 Isuzu I-MARK with one of the 2 Radiator Caps we have in stock, starting at just $9.99.
Carquest Premium – Radiator Cap: 16 PSI (Part No.10230)
from
$10.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
See More
Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Radiator Cap: 16 PSI (Part No.10226)
from
$9.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
See More
Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Best-Selling 1981 Isuzu I-MARK Thermostats
Upgrade your I-MARK with one of our 9 best-selling Thermostats, earning an average 4.81 stars rating across 126 reviews.
Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13779)
from
$16.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – High Flow Thermostat: 170 Degrees (Part No.13967)
from
$14.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. With the enlarged Orpheus opening, this high flowing thermostat will allow for more gallons per second to flow. This will allow for the engine to cool down at a faster rate compared to the OE to allow for quick and precise cooling for your engine. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- Larger opening for increased coolant flow
- Increased strength and durability
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13778)
from
$15.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13858)
from
$9.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – High Flow Thermostat: 180 Degrees (Part No.13968)
from
$12.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. With the enlarged Orpheus opening, this high flowing thermostat will allow for more gallons per second to flow. This will allow for the engine to cool down at a faster rate compared to the OE to allow for quick and precise cooling for your engine. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- Larger opening for increased coolant flow
- Increased strength and durability
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13399)
from
$10.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13398)
from
$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 192 Degrees (Part No.13859)
from
$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 170 Degrees (Part No.241-170)
from
$15.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Top-Quality Coolant Temperature Sensors for 1981 Isuzu I-MARKs
Choose a high-quality OEM or aftermarket Coolant Temperature Sensor for Isuzu I-MARKs and enjoy top-notch performance from $26.99.
Carquest Premium – Coolant Temperature Sensor (Part No.WTC1001)
from
$26.99
Product Features:
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- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
- OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
- O-rings, seals or thread sealant are included if required
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Our Top Pick for a 1981 Isuzu I-MARK Thermostat and Water Outlet Gasket
Invest in a
durable Thermostat and Water Outlet Gasket for your 1981 Isuzu, knowing you’re getting trusted brands and expert craftsmanship.
Felpro – Water Outlet Gasket (Part No.25581)
from
$2.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Our Top-Rated Coolant Reservoir Caps for 1981 Isuzu I-MARKs
Make a smart move for your 1981 Isuzu I-MARK with our Coolant Reservoir Cap for $13.49.
Carquest Premium – Radiator Cap: 16 PSI (Part No.10330)
from
$13.49
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
See More
Product Features:
- Safety lever to vent coolant pressure before removal
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Top-Rated Engine Cooling Part Brands For Your 1981 Isuzu I-MARK
When it comes to finding the perfect Engine Cooling Part for your 1981 Isuzu I-MARK, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Engine Cooling Part brands including FELPRO, Carquest Premium, and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $2.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1981 Isuzu I-MARK, providing peace of mind with parts that meet or exceed OEM standards.
Popular FELPRO 1981 Isuzu I-MARK Engine Cooling Parts
If you’re looking for a top-quality Engine Cooling Part for your 1981 Isuzu I-MARK, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Cooling Parts. We have 1 FELPRO Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $2.49, you’ll find the perfect Engine Cooling Part for your needs and budget. FELPRO Engine Cooling Parts for the 1981 Isuzu I-MARK come highly rated, with over 3 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Top-Quality Carquest Premium 1981 Isuzu I-MARK Engine Cooling Parts
For those in search of a high-quality Engine Cooling Part for their 1981 Isuzu I-MARK, Advance Auto Parts offers a great selection of Carquest Premium Engine Cooling Parts. With 3 Carquest Premium Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $14.99, with an average price of $15.99, giving you a range of options to suit your budget. Backed by over 88 customer ratings and an average rating of 4.4 stars, Carquest Premium Engine Cooling Parts provide both reliability and excellent performance. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$15.99
(16)
Standard Thermostat: 180 Degrees
“Car did not run hot, but lower radiator hose started leaking and was too hot to touch. Replaced and lower radiator hose temp was much cooler. Car runs”
from
$16.99
(56)
Standard Thermostat: 195 Degrees
“My radiator finally sprung a leak and 1 call to Advance Auto and I was back in business! Had my mechanic install it without any problems and now I’m b”
FAQs for 1981 Isuzu I-MARK Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 1981 Isuzu I-MARKs?
Out of 25 Engine Cooling Parts that fit 1981 Isuzu I-MARKs, the following parts are the top sellers:
- High Flow Thermostat: 170 Degrees (5653495) – $14.99
- Coolant Temperature Sensor (12422735) – $26.99
- Adjustable Thermostatic Fan Control (6016936) – $23.99
What’s the price range for 1981 Isuzu I-MARK Engine Cooling Parts?
The prices of Engine Cooling Parts for the 1981 Isuzu I-MARK range from $2.49 up to $108.99 for the most premium parts.
What is the average price of an Engine Cooling Part for a 1981 Isuzu I-MARK?
The average price for Engine Cooling Parts for the 1981 Isuzu I-MARK is $32.90. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Engine Cooling Parts for other Isuzu I-MARK model years?
What are the cheapest Engine Cooling Parts for my 1981 Isuzu I-MARK?
The cheapest 1981 Isuzu I-MARK Engine Cooling Parts we carry are:
- Water Outlet Gasket (5183952) – $2.49
- Radiator Drain Cocks (5702747) – $8.99
- Standard Thermostat: 180 Degrees (5653347) – $9.49
- Radiator Cap: 16 PSI (17110003) – $9.99
- Standard Thermostat: 180 Degrees (5653134) – $9.99
What are the top-rated Engine Cooling Parts that fit the 1981 Isuzu I-MARK?
Based on 725 reviews by customers, our 1981 Isuzu I-MARK Engine Cooling Parts have an average customer rating of 4 stars. These are the highest-rated categories of Engine Cooling Parts for the 1981 Isuzu I-MARK and their top-rated products:
- Thermostat and Water Outlet Gaskets
- Water Outlet Gasket (5183952) – $2.49
- Radiator Caps
- Radiator Cap: 16 PSI (17110018) – $10.99
- Radiator Fan Motors
- Electric Fan, 12" Diameter (6016901) – $108.99
What types of Engine Cooling Parts do you sell for my 1981 Isuzu I-MARK?
As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1981 Isuzu I-MARK:
Can I get help with 1981 Isuzu I-MARK Engine Cooling Part orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Isuzu Engine Cooling Parts and more.
What is your return policy for Isuzu I-MARK Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new Isuzu I-MARK Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.