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Dorman 54370 Engine Coolant Reservoir Cap
| Brand | Dorman 54370 |
|---|---|
| Attachment Type | Threaded On |
| Color | Black |
| Color | Yellow |
| Diameter | 1.55 |
| Length (In) | 8.5 in |
| Material | Plastic |
| Material | Rubber |
| Maximum Pressure Rating | 20 |
| Package Contents | 1 Coolant Tank Cap |
| Pressure Release Lever | No |
| Pressurized | No |
| Type | Twist |
| Vented | No |
| Width (in) | 1.94 in |
| Fits | Honda · 178 vehicles |
Direct replacement. Precisely engineered coolant reservoir cap for seamless replacement.
Threaded-on design. Twist-on attachment makes installation straightforward.
Plastic and rubber. Durable construction with a black finish.
Cross-references 19102PM5A00 for the same application. See all 1.
$29.15Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Reservoir Cap options
Engine Coolant Reservoir Cap Replacement
Replace a cracked, missing, or worn coolant reservoir cap with a direct-fit Dorman solution built for select Honda and Acura applications. Dorman 54370 is a threaded-on, twist-style cap with a 1.55 in diameter and a 20 psi maximum pressure rating for the coolant tank.
Key Features
- Direct replacement engine coolant reservoir cap for select Honda and Acura vehicles
- Twist-on, threaded attachment for secure fitment
- Plastic and rubber construction in black and yellow
- 20 psi maximum pressure rating
- Non-vented, non-pressurized design
- Matches the original style for service replacement
Detailed Description
Dorman 54370 is engineered as a direct replacement for the original engine coolant reservoir cap on a wide range of Honda and Acura models. It is designed to restore proper sealing at the coolant tank, helping maintain the system’s intended pressure level and reducing the risk of coolant loss from a damaged or missing cap. This part number 54370 is a practical service replacement for vehicles such as the Honda Accord, Honda CR-V, Acura TL, and Acura MDX, along with many other listed applications.
This part cross-references Honda OEM 19102PM5A00 for the same application.
What It Helps Address
- Cracked or broken coolant reservoir cap
- Lost or missing coolant tank cap
- Coolant seepage at the reservoir opening
- Improper sealing at the expansion tank
- Pressure loss caused by a worn cap seal
Installation Notes and Tips
- Confirm the reservoir neck diameter and threaded-on twist style before installation.
- Inspect the coolant tank sealing surface for cracks, debris, or hardened residue.
- Verify the cap’s 20 psi rating matches the original specification for the vehicle.
- Use on listed applications including Fits 1990-2017 Honda Accord, N/A; Fits 1997-2001 Honda CR-V, N/A; Fits 1997-2014 Acura TL, N/A; and Fits 2001-2006 Acura MDX, N/A.
- For fitment verification, compare the original cap shape and part number 54370 against the vehicle’s reservoir.
Quality Assurance
Dorman manufactures this coolant reservoir cap as a direct replacement part for service use. The design follows the original style and pressure rating needed for the listed Honda and Acura applications, including 2013-2018 Acura RDX, 2003-2011 Honda Element, and 1996-2004 Honda Odyssey.
This part fits 178 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2017 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2017 | Acura | RLX | — | — | N/A | Packaging Type: Box |
| 2017 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2016 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2016 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2015 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2015 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2015 | Honda | Crosstour | — | — | N/A | Packaging Type: Box |
| 2014 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2014 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2014 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2014 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2014 | Honda | Crosstour | — | — | N/A | Packaging Type: Box |
| 2014 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2013 | Acura | RDX | — | — | N/A | Packaging Type: Box |
| 2013 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2013 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2013 | Acura | ZDX | — | — | N/A | Packaging Type: Box |
| 2013 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2013 | Honda | Crosstour | — | — | N/A | Packaging Type: Box |
| 2013 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2012 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2012 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2012 | Acura | ZDX | — | — | N/A | Packaging Type: Box |
| 2012 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2012 | Honda | Crosstour | — | — | N/A | Packaging Type: Box |
| 2012 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2011 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2011 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2011 | Acura | ZDX | — | — | N/A | Packaging Type: Box |
| 2011 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2011 | Honda | Accord Crosstour | — | — | N/A | Packaging Type: Box |
| 2011 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2011 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2010 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2010 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2010 | Acura | ZDX | — | — | N/A | Packaging Type: Box |
| 2010 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2010 | Honda | Accord Crosstour | — | — | N/A | Packaging Type: Box |
| 2010 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2010 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2009 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2009 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2009 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2009 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2009 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2009 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2008 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2008 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2008 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2008 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2008 | Honda | Fit | — | — | N/A | Packaging Type: Box |
| 2008 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2008 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2008 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2007 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2007 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2007 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2007 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2007 | Honda | Fit | — | — | N/A | Packaging Type: Box |
| 2007 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2007 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2007 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2006 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2006 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2006 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2006 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2006 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2006 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2006 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2006 | Honda | Ridgeline | — | — | N/A | Packaging Type: Box |
| 2006 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2005 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2005 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2005 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2005 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2005 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2005 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2005 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2005 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2004 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2004 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 2004 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2004 | Acura | TSX | — | — | N/A | Packaging Type: Box |
| 2004 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2004 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2004 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2004 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 2004 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2004 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2003 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 2003 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2003 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 2003 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2003 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2003 | Honda | Element | — | — | N/A | Packaging Type: Box |
| 2003 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2003 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 2003 | Honda | Pilot | — | — | N/A | Packaging Type: Box |
| 2003 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2002 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 2002 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2002 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 2002 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2002 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2002 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2002 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 2002 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2001 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 2001 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 2001 | Acura | MDX | — | — | N/A | Packaging Type: Box |
| 2001 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 2001 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2001 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2001 | Honda | CR-V | — | — | N/A | Packaging Type: Box |
| 2001 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2001 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 2001 | Honda | Prelude | — | — | N/A | Packaging Type: Box |
| 2001 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 2000 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 2000 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 2000 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 2000 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 2000 | Honda | CR-V | — | — | N/A | Packaging Type: Box |
| 2000 | Honda | Insight | — | — | N/A | Packaging Type: Box |
| 2000 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 2000 | Honda | Prelude | — | — | N/A | Packaging Type: Box |
| 2000 | Honda | S2000 | — | — | N/A | Packaging Type: Box |
| 1999 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 1999 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 1999 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 1999 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 1999 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1999 | Honda | CR-V | — | — | N/A | Packaging Type: Box |
| 1999 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 1999 | Honda | Prelude | — | — | N/A | Packaging Type: Box |
| 1998 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 1998 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 1998 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 1998 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 1998 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1998 | Honda | CR-V | — | — | N/A | Packaging Type: Box |
| 1998 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 1998 | Honda | Prelude | — | — | N/A | Packaging Type: Box |
| 1997 | Acura | CL | — | — | N/A | Packaging Type: Box |
| 1997 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 1997 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 1997 | Acura | TL | — | — | N/A | Packaging Type: Box |
| 1997 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1997 | Honda | Civic del Sol | — | — | N/A | Packaging Type: Box |
| 1997 | Honda | CR-V | — | — | N/A | Packaging Type: Box |
| 1997 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 1997 | Honda | Prelude | — | — | N/A | Packaging Type: Box |
| 1996 | Acura | Integra | — | — | N/A | Packaging Type: Box |
| 1996 | Acura | RL | — | — | N/A | Packaging Type: Box |
| 1996 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1996 | Honda | Civic del Sol | — | — | N/A | Packaging Type: Box |
| 1996 | Honda | Odyssey | — | — | N/A | Packaging Type: Box |
| 1995 | Acura | Legend | — | — | N/A | Packaging Type: Box |
| 1995 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1995 | Honda | Civic | — | Coupe | N/A | Packaging Type: Box |
| 1995 | Honda | Civic del Sol | — | — | N/A | Packaging Type: Box |
| 1994 | Acura | Legend | — | — | N/A | Packaging Type: Box |
| 1994 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1994 | Honda | Civic | — | Coupe | N/A | Packaging Type: Box |
| 1993 | Acura | Legend | — | — | N/A | Packaging Type: Box |
| 1993 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1993 | Honda | Civic | — | Sedan | N/A | Packaging Type: Box |
| 1992 | Acura | Legend | — | — | N/A | Packaging Type: Box |
| 1992 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1991 | Acura | Legend | — | — | N/A | Packaging Type: Box |
| 1991 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1991 | Honda | Civic | — | — | N/A | Packaging Type: Box |
| 1991 | Honda | CRX | — | — | N/A | Packaging Type: Box |
| 1990 | Honda | Accord | — | — | N/A | Fits washer fluid reservoir cap on automatic transmission vehicles. |
| 1990 | Honda | Civic | — | Hatchback | N/A | Packaging Type: Box |
| 1990 | Honda | CRX | Si | — | N/A | Packaging Type: Box |
| No rows match your filter. | ||||||
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
19102PM5A00