HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-317 Engine Coolant Reservoir - Front
Part #: 603-317

Dorman 603-317 Engine Coolant Reservoir - Front

Front
⚙️ 18 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Ram 2500 and Ram 3500
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Dorman Engine Coolant Reservoir for Dodge Ram 2500 and 3500

The Dorman 603-317 engine coolant reservoir is designed specifically for Dodge Ram 2500 and Ram 3500 models. Constructed from durable white plastic, this reservoir includes a flip-top cap and necessary tubing to maintain your vehicle's cooling system efficiently.

  • Material: Durable white plastic construction
  • Cap Type: Flip top cap included for easy access
  • Mounting Holes: Three mounting holes for secure installation
  • Pressurized: Non-pressurized reservoir design
  • Package Contents: Includes 1 coolant reservoir, 1 cap, and tubing
  • Mounting Hardware and Brackets: Not included

Detailed Product Description

The Dorman 603-317 engine coolant reservoir is engineered to meet the specifications of Dodge Ram 2500 and Ram 3500 trucks. Made from sturdy plastic, the white reservoir is designed to withstand typical engine bay conditions without cracking or leaking. The flip-top cap allows for convenient coolant level checks and refills, while the three mounting holes provide a stable fitment. This reservoir is non-pressurized, which aligns with the original equipment design for these Dodge models. The package includes the reservoir, cap, and tubing, but mounting hardware and brackets are not included, so reusing existing components or purchasing separately may be necessary.

Common Applications and Issues Addressed

  • Replacement for cracked or leaking coolant reservoirs in Dodge Ram 2500 and 3500
  • Prevents coolant loss and overheating due to damaged or faulty reservoirs
  • Restores proper coolant level monitoring with included flip-top cap
  • Addresses coolant contamination caused by reservoir damage
  • Helps maintain engine temperature stability by ensuring coolant containment

Installation Notes and Tips

  • Compatible with Dodge Ram 2500 and Ram 3500 models; verify fitment before installation
  • Mounting hardware and brackets are not included; retain original parts or source replacements
  • Ensure all connections are secure and tubing is properly attached to prevent leaks
  • Check coolant levels after installation and refill as necessary
  • Follow vehicle manufacturer guidelines for coolant system maintenance

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-317 engine coolant reservoir undergoes quality checks to ensure durability and reliability in Dodge Ram 2500 and 3500 applications. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.

BrandDorman
Part Number603-317
Cap IncludedYes
Cap TypeFlip Top
ColorWhite
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; Tubing
PressurizedNo

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009DodgeRam 25005.9LL6Front
2009DodgeRam 25006.7LL6Front
2009DodgeRam 3500FrontL6 359CID 5.9L
2009DodgeRam 35006.7LL6Front
2008DodgeRam 25005.9LL6Front
2008DodgeRam 25006.7LL6Front
2008DodgeRam 35005.9LL6Front
2008DodgeRam 35006.7LL6Front
2007DodgeRam 25005.9LL6Front
2007DodgeRam 25006.7LL6Front
2007DodgeRam 35005.9LL6Front
2007DodgeRam 35006.7LL6Front
2006DodgeRam 25005.9LL6Front
2006DodgeRam 35005.9LL6Front
2005DodgeRam 25005.9LL6Front
2005DodgeRam 35005.9LL6Front
2004DodgeRam 25005.9LL6Frontw/High Output Engine
2004DodgeRam 35005.9LL6Frontw/High Output Engine

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

55056493AA

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.