/live/media/VE/VE_TH652387_Fro.jpg)
OE Quality
60-Day Returns
CalorstatPart #: TH6523.87
Calorstat TH6523.87 Engine Coolant Thermostat
⚙️ 9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$47.69Free 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: Volkswagen, Vanagon
🔄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 Thermostat options
Calorstat TH6523.87 Engine Coolant Thermostat
| Brand | Calorstat |
| Part Number | TH6523.87 |
| Sealing Flange Outside Diameter | 2.63 |
| Height Between Flanges | 0.9 |
| Type | Standard |
| Gasket Or Seal Included | No |
| Start to Open Temperature | 188.0 |
| 9813 | 1.29 |
| 9844 | 1 |
| By-Pass Valve Diameter | 33.0 |
| Height Shoulder | 7.5 |
| Height, By-Pass Side | 23.0 |
| Valve-Seat Diameter | 67.0 |
| With | Rubber valve |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1990 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1989 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1988 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1987 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1986 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1985 | Volkswagen | Vanagon | 1.9L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1984 | Volkswagen | Vanagon | 1.9L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
| 1983 | Volkswagen | Vanagon | 1.9L | H4 | N/A | Vernet is an OE Supplier to Volkswagen |
* 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:
025121113025121113D025121113E025121113F028 287 00052.112.87.312273-1924155.874155.87D7273-192TH09187G1TX 24 87D
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.