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CalorstatPart #: RC0172
Calorstat RC0172 Engine Coolant Reservoir Cap
⚙️ 12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$14.38Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Smart, Fortwo
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Engine Coolant Reservoir Cap options
Calorstat RC0172 Engine Coolant Reservoir Cap
| Brand | Calorstat |
| Part Number | RC0172 |
| Material | Plastic, rubber |
| Maximum Pressure Rating | 23.0 |
| Attachment Type | Threaded |
| Type | Standard |
| Pressure Release Lever | No |
| Pressurized | Yes |
| Opening Pressure | 23 psi |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Smart | Fortwo | -L | -- | N/A | Pressure Rating: 1,6bar - 23psi |
| 2015 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2014 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2013 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2012 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2011 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2010 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2009 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2008 | Smart | Fortwo | 1.0L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2007 | Smart | Fortwo | 0.8L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2006 | Smart | Fortwo | 0.8L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
| 2005 | Smart | Fortwo | 0.8L | L3 | N/A | Pressure Rating: 1,6bar - 23psi |
* 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:
0003402V0030003402V0030000004505010015A4505010015Q0003402V003000000
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.