1986 Isuzu I-MARK Engine Cooling Parts

Keep Your 1986 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 1986 Isuzu I-MARK looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Coolant Temperature Sensors, Water Pumps, and Radiators. 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 and Imperial. For example, Carquest Premium Engine Cooling Parts start at just $9.49 with an average 4.4 star rating. Imperial offer similar pricing and quality, backed by strong customer feedback. With over 385 reviews and a solid 4 star average, you can shop with confidence knowing other Isuzu I-MARK owners approve.

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 and Heating Parts. At Advance Auto Parts, we’re here to help you keep your 1986 Isuzu I-MARK in peak condition, inside and out.

Essential 1986 Isuzu I-MARK Engine Cooling Parts

Imperial – Thermostatic Fan Control – Preset (Part No.226206)

Thermostatic Fan Control - Preset

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:
  • 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
See More

Imperial – Thermostatic Fan Control – Adjustable (Part No.226208)

Thermostatic Fan Control - Adjustable

from

$69.99
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:
  • Adjustable thermostatic fan control
  • 160 Deg. F – 210 Deg. F thread-in probe
  • For use with Imperial electric fans
  • Thread-in probe for installation in water jacket or radiator
  • 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
See More

Carquest Premium – Engine Water Pump (Part No.T1090)

Engine Water Pump

from

$46.99
This premium water pump uses new high-quality components And is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub And housing are all designed for long-lasting service life. All necessary gaskets And seals are included.

Product Features:
  • This pump is driven by the timing belt
  • Timing belt should be replaced with the pump
  • All gaskets or seals necessary for installation are supplied with pump
  • Durable housing features precisely machined mounting surfaces for proper sealing
  • The latest impeller upgrades engineered for maximum coolant flow
See More

Carquest Premium – Coolant Temperature Switch 1TS1218 (Part No.WTC1066)

Coolant Temperature Switch 1TS1218

from

$15.99
Product Features:
  • 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
See More

Delphi – Engine Coolant Temperature Sensor (Part No.TS10250)

Engine Coolant Temperature Sensor

from

$30.49
Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10333)

Radiator Cap: 16 PSI

from

$21.99
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:
  • 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
See More

Imperial – Electric Fan, 12" Diameter (Part No.226112)

Electric Fan, 12" Diameter

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:
  • 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.
See More

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.41857)

Radiator: With Transmission Oil Cooler

from

$414.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
See More

Imperial – Electric Fan, 10" Diameter (Part No.226110)

Electric Fan, 10" Diameter

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:
  • 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.
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10330)

Radiator Cap: 16 PSI

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:
  • 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
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10233)

Radiator Cap: 16 PSI

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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Engine Cooling Fan Switch (Part No.ACA1612)

Engine Cooling Fan Switch

from

$44.99
The main device in any electrical circuit is a switch. In an electrical circuit a device is required to turn a component on or off when commanded by the operator, within the switch are contacts that will complete the electrical path to the load, or driven device. The operation of a switch may be manual from a person or could be electrical from some sort of controller or computer.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • 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.
  • Where applicable electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
See More

Carquest Premium – High Flow Thermostat: 170 Degrees (Part No.13967)

High Flow Thermostat: 170 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 192 Degrees (Part No.13859)

Standard Thermostat: 192 Degrees

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:
  • 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
See More

Carquest Premium – High Flow Thermostat: 180 Degrees (Part No.13968)

High Flow Thermostat: 180 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 170 Degrees (Part No.241-170)

Standard Thermostat: 170 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13399)

Standard Thermostat: 195 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13779)

Standard Thermostat: 195 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13778)

Standard Thermostat: 180 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13858)

Standard Thermostat: 180 Degrees

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:
  • 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
See More

Carquest Premium – Engine Coolant Temperature Sender (Part No.WTA1614)

Engine Coolant Temperature Sender

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:
  • 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.
See More

Carquest Premium – Engine Coolant Temperature Sender (Part No.WTA1658)

Engine Coolant Temperature Sender

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:
  • 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.
See More

Most Popular Coolant Temperature Sensors for 1986 Isuzu I-MARKs

Enhance your 1986 Isuzu I-MARK with one of the 3 Coolant Temperature Sensors we have in stock, starting at just $15.99.

Carquest Premium – Coolant Temperature Switch 1TS1218 (Part No.WTC1066)

Coolant Temperature Switch 1TS1218

from

$15.99
Product Features:
  • 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
See More

Carquest Premium – Coolant Temperature Sensor 1TS1222 (Part No.WTC1057)

Coolant Temperature Sensor 1TS1222

from

$31.99
Product Features:
  • 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
See More

Delphi – Engine Coolant Temperature Sensor (Part No.TS10250)

Engine Coolant Temperature Sensor

from

$30.49
Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
See More

Best-Selling 1986 Isuzu I-MARK Water Pump

Upgrade your I-MARK with our best-selling Water Pump.

Carquest Premium – Engine Water Pump (Part No.T1090)

Engine Water Pump

from

$46.99
This premium water pump uses new high-quality components And is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub And housing are all designed for long-lasting service life. All necessary gaskets And seals are included.

Product Features:
  • This pump is driven by the timing belt
  • Timing belt should be replaced with the pump
  • All gaskets or seals necessary for installation are supplied with pump
  • Durable housing features precisely machined mounting surfaces for proper sealing
  • The latest impeller upgrades engineered for maximum coolant flow
See More

Top-Quality Radiators for 1986 Isuzu I-MARKs

Choose a high-quality OEM or aftermarket Radiator for Isuzu I-MARKs and enjoy top-notch performance from $414.99.

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.41857)

Radiator: With Transmission Oil Cooler

from

$414.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
See More

Top Picks for 1986 Isuzu I-MARK Thermostats

Invest in one of our 3 durable Thermostats for your 1986 Isuzu, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13858)

Standard Thermostat: 180 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 192 Degrees (Part No.13859)

Standard Thermostat: 192 Degrees

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 170 Degrees (Part No.241-170)

Standard Thermostat: 170 Degrees

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:
  • 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
See More

Our Top-Rated Coolant Reservoir Caps for 1986 Isuzu I-MARKs

Make a smart move for your 1986 Isuzu I-MARK with our Coolant Reservoir Cap for $14.99.

Carquest Premium – Radiator Cap: 16 PSI (Part No.10233)

Radiator Cap: 16 PSI

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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Top-Rated Engine Cooling Part Brands For Your 1986 Isuzu I-MARK

When it comes to finding the perfect Engine Cooling Part for your 1986 Isuzu I-MARK, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $9.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1986 Isuzu I-MARK, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 1986 Isuzu I-MARK Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 1986 Isuzu I-MARK, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Cooling Parts. We have 3 Carquest Premium Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $9.49 and an average cost of $11.49, you’ll find the perfect Engine Cooling Part for your needs and budget. Carquest Premium Engine Cooling Parts for the 1986 Isuzu I-MARK come highly rated, with over 214 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Radiator Cap: 16 PSI
from $14.99
(193)
Radiator Cap: 16 PSI
“fits better than OEM”
Standard Thermostat: 192 Degrees
from $9.99
(14)
Standard Thermostat: 192 Degrees
“Perfect OEM fit and easy to replace.!!!”
Standard Thermostat: 180 Degrees
from $9.49
(7)
Standard Thermostat: 180 Degrees
“Works as should”

Top-Quality Imperial 1986 Isuzu I-MARK Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 1986 Isuzu I-MARK, Advance Auto Parts offers a great selection of Imperial Engine Cooling Parts. With 1 Imperial 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 $23.99, giving you a range of options to suit your budget. Backed by over 35 customer ratings and an average rating of 4.1 stars, Imperial Engine Cooling Parts provide both reliability and excellent performance. Choosing a Imperial Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Adjustable Thermostatic Fan Control
from $23.99
(35)
Adjustable Thermostatic Fan Control
“good price, but does not come with knob to set temp”

FAQs for 1986 Isuzu I-MARK Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1986 Isuzu I-MARKs?

Out of 19 Engine Cooling Parts that fit 1986 Isuzu I-MARKs, the following parts are the top sellers:

What’s the price range for 1986 Isuzu I-MARK Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1986 Isuzu I-MARK range from $9.49 up to $414.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1986 Isuzu I-MARK?

The average price for Engine Cooling Parts for the 1986 Isuzu I-MARK is $61.31. 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?

Yes, we carry Engine Cooling Parts for 7 model years of Isuzu I-MARKs between 1981 and 1989. The following model years are the most popular for Engine Cooling Part purchases: 1989, 1988, 1987, 1985, 1984, 1983, 1982, and 1981.

What are the cheapest Engine Cooling Parts for my 1986 Isuzu I-MARK?

The cheapest 1986 Isuzu I-MARK Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 1986 Isuzu models?

Yes. We stock Engine Cooling Parts for 4 other popular 1986 Isuzu models. Some of the most popular are 1986 Impulse Engine Cooling Parts, 1986 Trooper Engine Cooling Parts, 1986 Pickup Engine Cooling Parts, 1986 NPR Engine Cooling Parts, and 1986 LT Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 1986 Isuzu I-MARK?

Based on 385 reviews by customers, our 1986 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 1986 Isuzu I-MARK and their top-rated products:

What types of Engine Cooling Parts do you sell for my 1986 Isuzu I-MARK?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1986 Isuzu I-MARK:

Can I get help with 1986 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.