1991 GMC P-Series Thermostats & Parts
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MotoRad®Engine Coolant ThermostatGMC P-Series 1991, Engine Coolant Thermostat by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high-quality product used in their vehicle....Offer precise pressure controlEnsure the proper fit$3.32 - $6.25 - ACDelco®GM Original Equipment™ Engine Coolant Standard ThermostatGMC P-Series 6.2L 1991, GM Original Equipment™ Engine Coolant Standard Thermostat by ACDelco®. Flange Diameter: 2.490". Temperature: 190F. Designed utilizing the latest technology, this product by ACDelco features premium quality and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.26Save: $2.44 (15%)$13.82
- MotoRad®High-Flow™ Series ThermostatGMC P-Series 1991, High-Flow™ Series Thermostat by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality product used in their...$3.64 - $4.82
- Gates®Premium Engine Coolant ThermostatGMC P-Series 1991, Premium Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and manufactured from...Great design and functionMade from sturdy materials$9.65 - $13.17
- Gates®OE Type Engine Coolant ThermostatGMC P-Series 1991, OE Type Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and manufactured from...Map Controlled - Bolt-on solution with included sensor that links to the engine control unitSame easy installation as standard ITH$7.89 - $36.22
- MotoRad®Fail Safe™ Series ThermostatGMC P-Series 1991, Fail Safe™ Series Thermostat by MotoRad®. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is designed to lock in the open position...$8.28 - $10.97
- MotoRad®UltraStat™ Series ThermostatGMC P-Series 1991, UltraStat™ Series Thermostat by MotoRad®. The new MotoRad UltraStat® thermostats are an innovative line offering many features and benefits over the original equipment. Heavy gauge stainless steel construction...$7.50 - $9.08
- MotoRad®Engine Coolant Thermostat KitGMC P-Series 4.3L 1991, Engine Coolant Thermostat Kit by MotoRad®. Temperature: 195F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality...Offer precise pressure controlEnsure the proper fit$13.77
- ACDelco®Professional™ Engine Coolant ThermostatGMC P-Series 1991, Professional™ Engine Coolant Thermostat by ACDelco®. ACDelco has a Thermostat and Cap for most GM vehicles on the road today. Engineered to work with your car, truck or SUV, ACDelco Professional™ Thermostats come...Heavier-duty components and greater flow rates than standard-line thermostats.Designed to be OE-like$3.24 - $22.71Save: up to 15%$2.75 - $19.30
- Gates®Economy Engine Coolant ThermostatGMC P-Series 3.9L / 4.3L / 5.7L 1991, Economy Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...Great design and functionMade from sturdy materials$6.84 - $7.38
- Stant®OE Type Engine Coolant ThermostatGMC P-Series 1991, OE Type Engine Coolant Thermostat by Stant®. Without Gaskets, Check Valves and Seal. Stant Coolant Temperature Sensor, which can be found as original equipment on most major nameplates, is the perfect companion to the...Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$2.82 - $14.14
- Stant®Engine Coolant Thermostat SealGMC P-Series 7.4L 1991, Engine Coolant Thermostat Seal by Stant®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.$2.84
- Apex Auto®Engine Coolant Thermostat Seal with 3 HolesGMC P-Series 6.2L with Forward Control Chassis 1991, Engine Coolant Thermostat Seal with 3 Holes by Apex Auto®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine...Quick accurate delivery with excellent fill-rateExcellent inventory availability$1.55
- MotoRad®Engine Coolant Thermostat Gasket Single PackGMC P-Series 7.4L 1991, Engine Coolant Thermostat Gasket Single Pack by MotoRad®. MotoRad seals and gaskets are made from high quality materials suitable for resistance to high temperatures and engine coolant to maintain a superior,...Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$0.65
- Mahle®Engine Coolant Thermostat GasketGMC P-Series 4.3L / 5.7L 1991, Engine Coolant Thermostat Gasket by Mahle®. Material: Molded Rubber. Keep your cooling system running leak-free, with superior-grade Mahle seals and gaskets designed to provide OE form, fit, and function....Designed to seal your cooling system from leaksMade from high-quality materials for utmost reliability$1.53
- Mahle®Engine Coolant Thermostat SealGMC P-Series 7.4L 1991, Engine Coolant Thermostat Seal by Mahle®. Material: Molded Rubber. Keep your cooling system running leak-free, with superior-grade Mahle seals and gaskets designed to provide OE form, fit, and function. Made...Designed to seal your cooling system from leaksMade from high-quality materials for utmost reliability$2.47
- Stant®Engine Coolant Thermostat GasketGMC P-Series 3.9L / 4.3L Replaces # 25153 1991, Engine Coolant Thermostat Gasket by Stant®. Cut installation time by as much as 50% with Stat Lok® adhesive backed thermostat gaskets. They’ll hold the thermostat in place, leaving your...Gaskets are cut to specific application requirementsStat Lok® Gaskets have adhesive backs to aid installation$0.91
- Victor Reinz®Engine Coolant Thermostat SealGMC P-Series 7.4L 1991, Engine Coolant Thermostat Seal by Victor Reinz®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$2.90
- iD Select®Engine Coolant ThermostatGMC P-Series 1991, Engine Coolant Thermostat by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as your...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$2.28 - $5.12Save: 10%$2.06 - $4.61
- MotoRad®Engine Coolant Thermostat and Housing AssemblyGMC P-Series 4.3L 1991, Engine Coolant Thermostat and Housing Assembly by MotoRad®. Temperature: 195F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust...Offer precise pressure controlEnsure the proper fit$21.74
- iD Select®Economy™ Engine Coolant ThermostatGMC P-Series 3.9L / 4.3L / 5.7L 1991, Economy™ Engine Coolant Thermostat by iD Select®. Temperature: 180F. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$2.28Save: $0.22 (10%)$2.06
- iD Select®FailSafe™ Engine Coolant ThermostatGMC P-Series 1991, FailSafe™ Engine Coolant Thermostat by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$11.01 - $11.76Save: 10%$9.90 - $10.58
- iD Select®Heavy Duty™ High Flow Engine Coolant ThermostatGMC P-Series 7.4L 1991, Heavy Duty™ High Flow Engine Coolant Thermostat by iD Select®. Temperature: 180F. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$4.31Save: $0.43 (10%)$3.88
- Stant®Heavy Duty Engine Coolant ThermostatGMC P-Series 1991, Heavy Duty Engine Coolant Thermostat by Stant®. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat. Stant’s exclusive ELAC® Thermostat Cutaway heat motor has a uniquely...Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.$4.81 - $39.96
- Advance Adapters®Engine Coolant Hi-Flow ThermostatGMC P-Series 5.7L 1991, Engine Coolant Hi-Flow Thermostat by Advance Adapters®. Temperature: 160F. Get high quality and excellent functionality with outstanding products expertly crafted by Advance Adapters. Designed with the utmost...High quality at an affordable priceExpertly made from premium materials$31.27
- TruParts®High Flow Engine Coolant ThermostatGMC P-Series 7.4L 1991, High Flow Engine Coolant Thermostat by TruParts®. Temperature: 195F. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$3.60
- iD Select®Engine Coolant Thermostat SealGMC P-Series 1991, Engine Coolant Thermostat Seal by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$0.45 - $2.02Save: 9%$0.41 - $1.83
- MotoRad®Engine Coolant Thermostat SealGMC P-Series 7.4L 1991, Engine Coolant Thermostat Seal by MotoRad®. MotoRad seals and gaskets are made from high quality materials suitable for resistance to high temperatures and engine coolant to maintain a superior, long lasting seal.Made of High quality materialsResistance to high tempertures$0.67
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