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Dorman 54227 Engine Coolant Reservoir Cap
Reliable Engine Coolant Reservoir Cap for Acura and Honda Vehicles
The Dorman 54227 engine coolant reservoir cap is designed to provide a secure seal for your vehicle's coolant system. Engineered with durable plastic and a threaded attachment, this cap ensures proper fitment and function for select Acura and Honda models.
Key Features of the Dorman 54227 Coolant Reservoir Cap
- Constructed from durable plastic material for corrosion resistance
- 31 mm diameter with a 1.5 inch length and width for precise fit
- Threaded attachment type for secure installation
- Twist-type cap design for easy removal and replacement
- Non-vented and non-pressurized to match original equipment specifications
- Compatible with Acura and Honda models including Accord, Civic, CR-V, EL, Prelude, RDX, and RSX
Detailed Description of the Dorman 54227 Coolant Cap
This engine coolant reservoir cap from Dorman is manufactured to meet the exact specifications required for proper coolant system operation in various Acura and Honda vehicles. The plastic construction offers resistance to heat and chemical exposure commonly found in engine compartments. Its 31 mm diameter and 1.5 inch dimensions ensure a precise fit on the coolant reservoir, while the threaded, twist-type design allows for secure attachment and easy maintenance. The cap is non-vented and non-pressurized, aligning with the original equipment design to maintain system integrity without pressure release features.
Common Applications and Issues Addressed
- Prevents coolant leaks by providing a tight seal on the reservoir
- Maintains proper coolant system pressure and fluid levels
- Replaces worn or damaged caps that may cause overheating
- Helps avoid contamination of the coolant system
- Ensures compatibility with Acura and Honda coolant reservoirs for reliable performance
Installation Notes and Tips
- Ensure the reservoir neck is clean and free of debris before installation
- Align the threaded cap carefully and twist until securely tightened
- Do not overtighten to avoid damaging the plastic threads
- Check for leaks after installation by running the engine and inspecting the cap area
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 54227 engine coolant reservoir cap undergoes quality control inspections to ensure durability and reliability. Warranty coverage details can be obtained from the product packaging or Dorman's official documentation.
| Brand | Dorman |
| Part Number | 54227 |
| Attachment Type | Threaded |
| Color | White |
| Diameter | 31 |
| Length (In) | 1.5 in |
| Material | Plastic |
| Package Contents | 1 Coolant Cap |
| Pressure Release Lever | No |
| Pressurized | No |
| Type | Twist |
| Vented | No |
| Width (in) | 1.5 in |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2012 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2011 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2010 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2009 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2008 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2007 | Acura | RDX | N/A | Packaging Type: Bag | |
| 2006 | Acura | RSX | N/A | Packaging Type: Bag | |
| 2005 | Acura | EL | N/A | Packaging Type: Bag | |
| 2005 | Acura | RSX | N/A | Packaging Type: Bag | |
| 2005 | Honda | Civic | N/A | Packaging Type: Bag | |
| 2004 | Acura | EL | N/A | Packaging Type: Bag | |
| 2004 | Acura | RSX | N/A | Packaging Type: Bag | |
| 2004 | Honda | Civic | N/A | Packaging Type: Bag | |
| 2004 | Honda | CR-V | N/A | Packaging Type: Bag | |
| 2003 | Acura | EL | N/A | Packaging Type: Bag | |
| 2003 | Acura | RSX | N/A | Packaging Type: Bag | |
| 2003 | Honda | Civic | N/A | Packaging Type: Bag | |
| 2003 | Honda | CR-V | N/A | Packaging Type: Bag | |
| 2002 | Acura | EL | N/A | Packaging Type: Bag | |
| 2002 | Acura | RSX | N/A | Packaging Type: Bag | |
| 2002 | Honda | Civic | N/A | Packaging Type: Bag | |
| 2002 | Honda | CR-V | N/A | Packaging Type: Bag | |
| 2001 | Acura | EL | N/A | Packaging Type: Bag | |
| 2001 | Honda | Civic | N/A | Packaging Type: Bag | |
| 1989 | Honda | Accord | N/A | Packaging Type: Bag | |
| 1988 | Honda | Accord | N/A | Packaging Type: Bag | |
| 1987 | Honda | Accord | N/A | Packaging Type: Bag | |
| 1987 | Honda | Prelude | 2.0 Si | N/A | Packaging Type: Bag |
| 1986 | Honda | Accord | N/A | Packaging Type: Bag | |
| 1986 | Honda | Prelude | 2.0 Si | N/A | Packaging Type: Bag |
| 1985 | Honda | Prelude | 2.0 Si | N/A | Packaging Type: Bag |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.