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OE Quality
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MotoradPart #: 251-180
Motorad 251-180 Engine Coolant Thermostat
16 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: Mercedes-Benz, 300D, 300SD, 300SDL, 300TD, 350SD, 350SDL, E300, and S350
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 Thermostat options
Motorad 251-180 Engine Coolant Thermostat
| Brand | Motorad |
|---|---|
| Part Number | 251-180 |
| Position | Standard |
| Sealing Flange Outside Diameter | 2.64 |
| Gasket Or Seal Included | No |
| Jiggle Pin Weep Hole | Yes |
| Bypass Diameter | 1.64 in |
| Bypass Length | 0.97 in |
| Flange Thickness | 0.06 in |
| Installation Tool Included | No |
| Temperature | 180 deg. f |
| Temperature (Degree) | 180 |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | Mercedes-Benz | E300 | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1997 | Mercedes-Benz | E300 | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1996 | Mercedes-Benz | E300 | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1995 | Mercedes-Benz | S350 | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1994 | Mercedes-Benz | S350 | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1993 | Mercedes-Benz | 300D | 2.5L | L5 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1993 | Mercedes-Benz | 300SD | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1992 | Mercedes-Benz | 300D | 2.5L | L5 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1992 | Mercedes-Benz | 300SD | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1991 | Mercedes-Benz | 300D | 2.5L | L5 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1991 | Mercedes-Benz | 350SD | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1991 | Mercedes-Benz | 350SDL | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1990 | Mercedes-Benz | 350SDL | 3.4L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1987 | Mercedes-Benz | 300D | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1987 | Mercedes-Benz | 300SDL | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; Standard |
| 1987 | Mercedes-Benz | 300TD | 3.0L | L6 | N/A | 180°F thermostat fits multiple vehicle models.; 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:
1601-230895180-152251-1802518060220000159251180NIP25180
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.