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OE Quality
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MotoradPart #: T178
Motorad T178 Engine Coolant Reservoir Cap
9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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*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
Standard
Fitment: Acura and Honda, Pilot and RLX
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? See all Engine Coolant Reservoir Cap options
Motorad T178 Engine Coolant Reservoir Cap
| Brand | Motorad |
|---|---|
| Part Number | T178 |
| Position | Standard |
| Material | Plastic |
| Material | Plástico |
| Diameter | 2.05 |
| Diameter | 52.07 |
| Color | Blanco |
| Color | White |
| Attachment Type | Roscado |
| Attachment Type | Threaded |
| Overall Height | 0.47 |
| Overall Height | 11.94 |
| Type | Estándar |
| Type | Standard |
| Cap Depth | 0.38 |
| Cap Depth | 9.65 |
| Pressure Release Lever | No |
| Quick Pressure Release | No |
| Shape | Redondo |
| Shape | Round |
| Indicator Markings | No |
| Vented | No |
| Pressurized | No |
| Coolant Recovery System | Open & closed |
| Filler Neck Inside Diameter | 1.22 in |
| Filler Neck Outside Diameter | 1.34 in |
| Overflow Hose Included | No |
| Thread Diameter | 1.22 in |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2015 | Acura | RLX | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2015 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2014 | Acura | RLX | 3.5L | V6 | GAS | N/A | Relief pressure N/A; Standard |
| 2014 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2013 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2012 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2011 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2010 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard | |
| 2009 | Honda | Pilot | 3.5L | V6 | N/A | Relief pressure N/A; Standard |
* 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:
19102RN0A00703-1971T178
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.