# Dorman 603-833 Engine Coolant Reservoir for Select Ram Models

Dorman 603-833 is an engine coolant reservoir listed as compatible with select Ram models. It is described as a direct replacement, but exact fit depends on the vehicle’s make, model and trim, so confirm compatibility before ordering.

- [Original product page](https://loonieperks.com/product/dorman-603-833-engine-coolant-reservoir-ram)
- [View offer](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- Market: CA
- Language: en-CA
- Currency: CAD
- Brand: Dorman
- Model: 603-833
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Mechanical Parts
- Price: 125.54 CAD
- Previous price: 214.99 CAD
- Discount: 42%
- Price checked: 2026-11-13T12:13:13.970Z
- Rating: 4.7 / 5
- Reviews: 115

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listed as a direct replacement intended to match the original part’s fit and function.
- Dorman describes the reservoir as designed for underhood heat and vibration.
- The listing advises checking fit by vehicle make, model and trim.

## Pros

- Vehicle-specific replacement positioning can help narrow the search for a compatible Ram reservoir.
- Customers report positive experiences with fit, quality and installation, including for a specific 2015 Ram 1500 3.0 EcoDiesel configuration.

## Specifications

### Identity
- Brand: Dorman
- Model: 603-833
### Dimensions and installation
- Dimensions listed: 42.2 x 20.1 x 25.1 centimetres
### Materials and protection
- Material listed: Plastic Metal

## Before you buy

- The listing specifies select Ram models, not a complete compatibility range. Confirm the part against your exact vehicle configuration before purchase. The listed plastic-and-metal material and dimensions are product claims, not independent measurements.

## A good fit for

- Owners or repairers replacing a coolant reservoir on a Ram configuration confirmed to fit part 603-833.
- Buyers seeking a direct-replacement style reservoir rather than a universal tank.

## Less suited to

- Anyone who has not confirmed compatibility with the vehicle’s make, model and trim.
- Buyers needing a reservoir for a non-Ram application or a universally compatible part.

## Customer feedback

Customer feedback is largely positive, with reported praise for fit, quality, function and straightforward installation. The summary includes a specific 2015 Ram 1500 3.0 EcoDiesel fit report, but that does not establish compatibility with every Ram configuration. The mostly high rating distribution is encouraging, while a small one-star share shows experiences are not uniformly positive. Treat these reports as context, not a substitute for confirming vehicle fit.
- Positive themes: Customers report good fit and quality comparable to the original.
- Positive themes: Customers describe installation as straightforward.

## Frequently asked questions

### Will Dorman 603-833 fit every Ram?
No. It is listed for select Ram models. Confirm the exact vehicle make, model and trim against the part before ordering.
### Is this described as a direct replacement?
Yes. The listing describes it as a direct replacement intended to match the original part’s fit and function.
### What material and dimensions are listed?
The listing gives the material as Plastic Metal and dimensions as 42.2 x 20.1 x 25.1 centimetres.

## Alternative options

- [SYKRSS Coolant Reservoir Tank 603-383 Compatible with Chevy \| 2010-2016 Cruze 2012-2014 Orlando 2016-2019 Cascada 2012-2017 Verano Replace 13256823 13465094 Engine Coolant Reservoir](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [603-973 Coolant Expansion Reservoir Tank with Cap \| Compatible with Chevy Silverado 1500 2500 Tahoe, GMC Sierra 1500 Yukon, Cadillac Escalade 2014-2020 Replace\# 22856231 3014134](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
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- [A-Premium Radiator Coolant Expansion Overflow Reservoir Tank W/Cap & Hose \| Compatible with Ram 1500 2019-2022 3.6L, 2020-2022 3.0L](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [A-Premium Engine Radiator Coolant Expansion Reservoir Overflow Tank \[W/Cap\] \| Compatible with Ford F-250 F-350 F-450 F-550 Super Duty 2003-2007, Excursion 2003-2005, Replace\# 3C3Z8A080AE](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [Urkastical Coolant Reservoir Overflow Tank 2007 2008 2009-2018 Chevy Silverado 1500 2500 3500 Tahoe GMC Sierra 1500 Yukon XL 2500 Cadillac Escalade](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [Partuto Coolant Expansion Reservoir Tank 603-009 for Chevy Silverado \| for Chevy Silverado 2500HD 3500HD, 84257137/84214124/84174037/84138913, Radiator Coolant Overflow Reservoir Recovery Tank, PP](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [84257137 Radiator Surge Tank Coolant Reservoir Replace for 603-009 \| Compatible with 2017-2019 Chevy Silverado GMC Sierra 2500HD 3500HD, 2019-2021 Chevy Silverado 4500HD 5500HD 6500HD](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [EVIL ENERGY Radiator Coolant Overflow Tank, Coolant Recovery Tank Aluminum 2L Black](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [Vkinman 603-382 Engine Coolant Reservoir Tank with Cap, Replacement for Ford C-Max Escape Focus Transit Connect 2012-2018, Replaces 8V618K218AE BE8Z8100A CV6Z-8A080-A](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [EVIL ENERGY Coolant Expansion Tank, 2.5L Aluminum Overflow Tank, Universal Radiator Overflow Reservoir, Polished Coolant Recovery Reservoir with Cap, Black](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)
- [Partuto Coolant Radiator Reservoir Tank 95048411 for Chevrolet Sonic 12-20 \| Coolant Overflow Expansion Bottle with Cap, Replacement, Direct Fit](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)

## Add-ons

- [VIKKSAER 68442532AA Radiator Coolant Recovery Cap, Replacement for Chrysler Dodge Jeep Ram EcoDiesel, 2014-2021 Cherokee Ram 1500, 2016-2021 Durango Grand Cherokee, 2017-2021 Pacifica Compass](https://loonieperks.com/visit/dorman-603-833-engine-coolant-reservoir-ram)

## Images

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 1](https://loonieperks.com/i/TzODlBpNnjgpFaTyqId2FrPbUeOZypNdc5u-TUeuMn0oLRKhZqnxkCA1mQWukyoZ8og1-WKrB5XJ_7quyOAJ9iaT_E2Z7w2aKuNMAAbrnoT3tHZ2b4C1Yd5r.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 2](https://loonieperks.com/i/YIhI4TUBWKeOkcUNfU8M1aPLXcJ1fGOg3U64Ipmi6Yromml96q7uGWEinzdyDAmGRy7_iEcKBxGOp2_G53RSy81BXuBn-in2kCj564eS5LlemZ3M.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 3](https://loonieperks.com/i/3ITUaG9htVT1bV1aVypOh74bBL1_mIcu7DdxzE15HF6ebJ0FUsUKVw0cbgQSjggzJytD9F1pd3_S2pSkJNbyMsbNfMF7gsPq1Ni8zXp-U-17tJbLV0iZfa1t.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 4](https://loonieperks.com/i/-evKnATBa4h1BAk8gqyi13HTs30Fm5b1UGPYArUwGhd4QougrmpTfXL_zu4CYCwuEzp94XA7EiZsUxy7OK_hA3wGvysrmYejO9nZESL2VtnSDmXYTOMee5xc.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 5](https://loonieperks.com/i/_EKJeqyv3c9BHOsM0QlEL3jhEYqMDi9ysXT3qQVZjhmdnXRhJ69K_V4_e9QtzJqCjj2aF-sQOXTwIuLhYkYPHegSal2eltN--g-aG5uhMxZH2tIBZ1Z21tX3.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 6](https://loonieperks.com/i/8XCLURpJOzId6k0BiTZKwTypu4c81mEU26PMNsqOBNdINw43S4hE5FV_dEhlVD8IUYUmI9ojFNHthZRmbbg1OrRpcjTmqc7Mj7Xf_0iY6d9yvoC4jgEjMACt.jpg)

![Dorman 603-833 Engine Coolant Reservoir for Select Ram Models — 7](https://loonieperks.com/i/6FS3e1wWJXIUv4GpL58ymUceapDpmhm2SDIgVGHWUAloMBT90VCgW-BfbDTx3WAKSiYgPwO9FYB_GHMMFP7xJdF8cg6Zt5eKJH5lr8-d4xuAlnXdb5I5qgy-.jpg)