My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Dorman 603-346 Pressurized Coolant Reservoir

(2019-2022 Chevrolet Silverado 1500; 2019-2022 GMC Sierra 1500; 2005-2012 Ford Escape; 2006-2011 Mercury Mariner)

Part of: Dorman Pressurized Coolant Reservoir

Other options in this family: Dorman 603213 Dorman 603208 Dorman 603-216 Dorman 603-832 Dorman 603-381

Manufacturer

Picture for manufacturer Dorman

Part Number

603-346
10 reviews
Sale Price

$149.90

In Stock (6)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman 603-346 Pressurized Coolant Reservoir is a direct replacement cooling system component designed to restore proper coolant system function in your vehicle. This pressurized reservoir tank maintains the correct coolant pressure and capacity to ensure optimal engine cooling performance.

Key Features:

  • Direct replacement for worn or damaged original equipment reservoir
  • Pressurized design maintains proper cooling system pressure
  • Durable construction for long-lasting performance
  • Includes integrated pressure cap mounting
  • Engineered to meet or exceed OEM specifications

This coolant reservoir helps prevent overheating by maintaining consistent coolant levels and pressure throughout your vehicle's cooling system. Dorman cooling products are designed and tested to restore original performance and provide dependable operation.

Products specifications

Fits

2019-2022 Chevrolet Silverado 1500; 2019-2022 GMC Sierra 1500; 2005-2012 Ford Escape; 2006-2011 Mercury Mariner

Cap Included

Yes

Cap Type

Spring Loaded Twist

Mounting Hardware Included

No

Mounting Brackets Included

No

Cap Maximum Pressure Rating

17

Color

White

Mounting Hole Quantity

2

Pressurized

Yes

Package Contents

1 Coolant Reservoir; 1 Cap

Material

Plastic

Awesome company!!!!!! Will definitely order from here again! Order arrived fast. Was exactly as described/pictured. Great price!

Very easy to use website

Was a great price and in stock. Hope I get it fast for the cruizin' coming up soon.If so I will be hooked

Best price for the item I needed. Very fast shipping and there consumer service was great on the phone.

I HONESTLY thought it was too good to be true! Almost 100$$$ less than any other place, I took a chance and ordered my ready lift leveling kit and it was here within 3 days! I received an email instantly with a tracking number, and was followe up with an email once it was delivered. EXTREMELY HAPPY! Thank you Autoplicity!

Good

Great prices, reasonable shipping costs. Shipped within 3 days of order. Didn't receive discount for valid coupon code (25OffShipping). No response to 2 emails. No indication of expected delivery date. Lots of unknowns but you can't beat the pricing.

Good products with low prices. Easy website and pament options.

quick turn around great price

Ordering was simple and shipped quickly. Received undamaged and exactly what i ordered. will order from them again.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy