1991 Mercedes-Benz 420SEL Engine Cooling Parts

Essential 1991 Mercedes-Benz 420SEL Engine Cooling Parts

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4121)

Engine Water Pump: New, Gasket/Seals Included

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$96.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432520)

Radiator: With Transmission Oil Cooler

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$217.99
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 engineered with integrated ribbing for added strength 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
  • Oil cooler designs meet or exceed OE standards, keeping the vehicle’s engine and transmission performing at optimal conditions
  • OEM grade, premium fittings for transmission or engine oil coolers (where applicable)
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ (Part No.22074)

Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ

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$6.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Permatex – The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ (Part No.34310)

The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ

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$38.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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Carquest Premium – Radiator Cap: 20 PSI (Part No.10335)

Radiator Cap: 20 PSI

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$9.49
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
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Carquest Premium – Fuel Pump Relay (Part No.RAA1915)

Fuel Pump Relay

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$64.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

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$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)

Radiator Cap Tester Adapter

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$14.29
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:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Vaico – Rivet (Part No.Q200173665VCO)

Rivet

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$1.86
Rivet

Rein – Air Cleaner Mount (Part No.B101015705RIN)

Air Cleaner Mount

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$7.42
Air Cleaner Mount

Mahle – MAHLE Thermostat (Part No.G400015462MAH)

MAHLE Thermostat

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$43.65
Intelligent control systems from MAHLE are used in millions of applications worldwide to provide needs-based precision temperature control. Simple, effective, and tried and tested millions of times over: thermostat inserts from MAHLE provide meticulous regulation of coolant circuits around the world up to approximately 20 m3/h, and ensure ideal operating temperatures in light vehicles, trucks, stationary engines, and also agricultural and construction machinery. Wax elements are at the heart of all MAHLE thermostats and thermostat inserts. These maintenance-free, durable elements have proved their worth in millions of applications. MAHLE, Manufactures a wide range of variants with actuating forces of between 30 N and 2,500 N, small or large displacements, and for a large number of regulation ranges within a temperature span of -20C to +130C.

Product Features:
  • OE quality and design
  • Maintenance-free, durable elements
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Rein – Thermostat Insert 80C (Part No.CTI0019)

Thermostat Insert 80C

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$14.99
Rein Automotive OE quality thermostat inserts install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These inserts are designed to meet or exceed the OE materials used. Rein thermostats are produced with high-quality metals and components to ensure proper durability and service life. The thermostats are temperature calibrated to have a consistent and precise response suiting cooling system needs. Our quality thermostat inserts aim to provide the profession repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.

Product Features:
  • Matches original equipment design specifications
  • All gaskets or seals necessary for installation are supplied with thermostats
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Thermostat set to 80 degrees Celsius to maintain optimal running temperature
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Behr – Radiator Drain Plug (Part No.G106011756BEH)

Radiator Drain Plug

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$11.09
Radiator Drain Plug

APA/URO – APA/URO Expansion Tank (Part No.G103016617APA)

APA/URO Expansion Tank

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$42.41
The APA/URO expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.

Product Features:
  • OE-Equivalent and Direct Fit for easy Installation.
  • OE style connections and fittings.
  • Made of highly durable materials.
  • Resistant to thermal wear and cracking.
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Metrix – Auxiliary Cooling Fan Assembly (Part No.G500034209MTX)

Auxiliary Cooling Fan Assembly

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$110.42
The Metrix Auxiliary Cooling Fan Assembly is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • OE quality
  • Quiet operation and dependable performance
  • Dual Bearing design technology
  • Vibration free operation
  • Precision assembled and balanced with all new components
  • Tested to OEM specifications
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Dorman – Radiator Fan Assembly: Single, Cost Effective And Reliable (Part No.621-310)

Radiator Fan Assembly: Single, Cost Effective And Reliable

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$183.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Product Features:
  • Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles
  • Complete package – assembly is designed with the same materials and components as the original part
  • Quality assured – motors are tested in laboratory settings to ensure performance
  • Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
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Carquest – Engine Coolant Temperature Switch (Part No.WT730)

Engine Coolant Temperature Switch

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$24.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
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Carquest Premium – Temperature Sender With Gauge (Part No.WTC1249)

Temperature Sender With Gauge

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$18.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
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Carquest Premium – Coolant Temperature Sensor (Part No.WTC1481)

Coolant Temperature Sensor

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$56.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
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Delphi – Engine Coolant Temperature Sensor (Part No.TS10263)

Engine Coolant Temperature Sensor

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$32.99
Delphi temperature sensors are built with the latest OE technology; Delphi temperature sensors use durable, one-piece design; Delphi temperature sensors are impervious to electrical noise and interference.

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
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Rein – Cap-Expansion Tank (Part No.CPE0026P)

Cap-Expansion Tank

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$11.49
Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.

Product Features:
  • Manufactured to strict engineering standards/specifications in materials and tolerances.
  • Direct fit.
  • Meets or exceeds pressure specifications demanded by the OE manufacturer.
  • Produced by an original equipment supplier.
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

Ultra Grey RTV Silicone Gasket Maker, 13 OZ

from

$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Hella – Coolant Level Sensor (Part No.G105016387HEL)

Coolant Level Sensor

from

$38.56
Coolant Level Sensor

APA/URO Parts – Coolant Level Sensor (Part No.G105016387APA)

Coolant Level Sensor

from

$25.91
A.P.A. URO is a supplier to many automotive manufacturers and provides OE quality European replacement parts to the aftermarket. URO Parts is a highly diversified product line including, body rubber, electrical, suspension, steering, cooling and air conditioning components.
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1991 Mercedes-Benz 420SEL Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 1991 Mercedes-Benz 420SEL. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 38 different Engine Cooling Parts in our inventory ranging from $1.86 to $302.53. That means you can find the exact parts or products you need to keep that 1991 Mercedes-Benz 420SEL running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 19 different brands to make sure you have plenty of trusted parts to choose from for your 1991 Mercedes-Benz 420SEL. Permatex, Carquest Premium, and Rein are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Cooling Parts for your 1991 Mercedes-Benz 420SEL, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 1991 Mercedes-Benz 420SEL rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Cooling Parts Brands To Make Your 1991 Mercedes-Benz 420SEL Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 Mercedes-Benz 420SEL demands trusted brand parts and products to keep it running. Many trusted brands of Engine Cooling Parts make up Advance Auto Parts’ inventory, and all are ready to help make your 420SEL the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular Permatex Engine Cooling Parts

We carry Permatex parts in our stock across Water Pump Gaskets and Engine Water Pump Outlet Pipe Gaskets categories, plus more. For a 1991 Mercedes-Benz 420SEL, our most popular Permatex Engine Cooling Parts include:
Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(9)
Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ
Water Pump Gaskets
Ultra Grey RTV Silicone Gasket Maker, 13 OZ
from $26.99
(7)
Ultra Grey RTV Silicone Gasket Maker, 13 OZ
Engine Water Pump Outlet Pipe Gaskets
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
from $19.99
(2)
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
Water Pump Housing Gaskets

Top 1991 Mercedes-Benz 420SEL Engine Cooling Parts from Permatex

Permatex products are another trusted brand when it comes to Engine Cooling Parts for your 1991 Mercedes-Benz 420SEL. Popular Permatex parts include:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Water Pump Gaskets

FAQs for 1991 Mercedes-Benz 420SEL Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 1991 Mercedes-Benz 420SEL?

Out of 38 Engine Cooling Parts for the 1991 Mercedes-Benz 420SEL, the most popular in our inventory are:
Radiator Cap: 20 PSI
from $8.79
(16)
Radiator Cap: 20 PSI
Radiator Caps
The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ
from $17.49
This product is not rated
The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ
Engine Water Pump Inlet Pipe Gaskets
Radiator Cap: 20 PSI
from $9.49
(3)
Radiator Cap: 20 PSI
Radiator Caps