Install a new o-ring for a proper seal. 36×3.15
$1.00
The coolant outlet O-ring ensures a proper seal between the coolant outlet and mating components, preventing coolant leaks and maintaining correct operating temperatures.
Over time, exposure to heat, pressure, and coolant chemicals can cause O-rings to harden, flatten, or crack—leading to leaks that compromise cooling system performance. Each time the outlet or coolant piping is removed, this O-ring should be replaced to guarantee a leak-free installation.
This replacement is manufactured to OEM specifications, ensuring precision fit and long-lasting sealing reliability.
JC PRONTEZZA supplies OEM-quality O-rings and sealing components to keep your cooling system properly sealed and your engine protected.
OE Part Number: 037 121 687
| Weight | .02 lbs |
|---|---|
| Dimensions | 2 × 2 × .2 in |
| Mfg Part # | 037121687 |
| Make | Model | Submodel | Engine | Notes |
|---|---|---|---|---|
| Audi | B5 A4 | FWD | 1.8T | Use vehicle selector to confirm fitment |
| Audi | B5 A4 | Quattro | 1.8T | Use vehicle selector to confirm fitment |
| Audi | B6 A4 | FWD | 1.8T | Use vehicle selector to confirm fitment |
| Audi | B6 A4 | Quattro | 1.8T | Use vehicle selector to confirm fitment |
| Audi | TT MKI | FWD | 180HP | Use vehicle selector to confirm fitment |
| Audi | TT MKI | Quattro | 180HP | Use vehicle selector to confirm fitment |
| Audi | TT MKI | Quattro | 225HP | Use vehicle selector to confirm fitment |
| Volkswagen | 337/20AE | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Cabrio III | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Corrado | All | G60 | Use vehicle selector to confirm fitment |
| Volkswagen | Golf I | Convertible | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Golf I | Pickup | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Golf I | Rabbit | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Golf II | All | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Golf III | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Golf III | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta I | All | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta II | All | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta III | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta III | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | 1.8T | For vehicles with a 4-speed automatic or manual transmission only |
| Volkswagen | Jetta IV | All | TDI | Seal between coolant flanges |
| Volkswagen | Jetta IV GLI | All | 1.8T | For vehicles with manual transmissions only |
| Volkswagen | New Beetle | All | 1.8T | Seals the coolant flange to the cylinder head |
| Volkswagen | New Beetle | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | New Beetle | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Passat B4 | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Passat B4 | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Passat B5 | 4 Motion | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Passat B5 | FWD | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Passat B5 | FWD | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Scirocco I | All | 8v | Use vehicle selector to confirm fitment |
| Volkswagen | Scirocco II | All | 8v | Use vehicle selector to confirm fitment |
For the hose connection found on the back of the block
Hose connection found on the back of the block
Breather hose from front of block to valve cover
Oil filter cartridge with o-ring
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