1991 Saturn SL Series Coolant Reservoir Caps

Your 1991 Saturn SL Series might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Coolant Reservoir Caps you desperately need.

We currently carry 3 Coolant Reservoir Caps to choose from for your 1991 Saturn SL Series, and our inventory prices range from as little as $5.99 up to $21.23.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Coolant Reservoir Caps for the 1991 Saturn SL Series. We only sell parts from trusted brands like Carquest Premium so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 20 reviews on our Coolant Reservoir Caps for the 1991 Saturn SL Series from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Coolant Reservoir Caps stock in-person!

Coolant Reservoir Caps for Your 1991 Saturn SL Series

Carquest Premium – Engine Coolant Reservoir Cap (Part No.10239)

Engine Coolant Reservoir Cap

from

$8.29
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

Product Features:
  • 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 – Engine Coolant Reservoir Cap (Part No.10240)

Engine Coolant Reservoir Cap

from

$5.99
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

Product Features:
  • 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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ACDelco – GM Original Equipment Expansion Tank Cap (Part No.G1040210791ACD)

GM Original Equipment Expansion Tank Cap

from

$21.23
An ACDelco GM Original Equipment Expansion Tank Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicle’s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Get the GM quality you know and trust with ACDelco GM Original Equipment Thermostats and Caps. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Thermostats and Caps are engineered for virtually every model of GM car, light duty truck, and sport utility vehicle.

Product Features:
  • Seal and maintain pressure on the cooling system for vehicle safety
  • Raise the boiling point of the engine coolant to maintain efficiency
  • Fit most models of GM vehicles for expanded coverage
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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FAQs for 1991 Saturn SL Series Coolant Reservoir Caps

What are the most popular Coolant Reservoir Caps for the 1991 Saturn SL Series?

With 2 brands you can trust, our most popular Coolant Reservoir Caps for the 1991 Saturn SL Series parts are:
Engine Coolant Reservoir Cap
from $8.29
(10)
Engine Coolant Reservoir Cap
Coolant Reservoir Caps
Engine Coolant Reservoir Cap
from $5.99
This product is not rated
Engine Coolant Reservoir Cap
Coolant Reservoir Caps
GM Original Equipment Expansion Tank Cap
from $21.23
This product is not rated
GM Original Equipment Expansion Tank Cap
Coolant Reservoir Caps