JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

FrostHeater makes custom-fit coolant heaters for Volkswagen TDIs. This model is made specifically to fit the early A4 chassis, MkIV Jetta & Golf, model year 1999 & 2000 with engine code ALH. Manual or automatic. Not for 2001+ models. The difference between A4 models has to do with the battery cover design. Early A4 models use a two-piece top cover, with the sites and top of the battery being covered by separate pieces. This fits the two-piece design.

The FrostHeater connects to the vehicle's coolant system, heating the coolant and the engine block. Pre-warmed engines start faster and give cabin heat much more quickly.

Plug in the FrostHeater a few hours before you leave for a better start and quicker heat. Plug in for 4 hours and enjoy a fully warmed engine and instant heat in the cabin. Even better, use a heavy duty timer that turns on the FrostHeater for you.

 WARNING California Proposition 65: Cancer and reproductive harm. - More Info...
  Select Vehicle to Check Fitment
5 Unit(s) in Stock
  Name Price Select
Plug Cover Plug Cover $4.99
Rowe G13 Coolant 1 Gallon Rowe G13 Coolant 1 Gallon $20.95
  • Golf TDI MkIV (A4 chassis) w/ ALH Engine (1999-2000)
  • Jetta TDI MkIV (A4 chassis) w/ ALH Engine (1999-2000)
Buy any FrostHeater along with a gallon of Rowe G13 coolant and get $5 off!

For almost 17 years FrostHeater has been designing, developing, and producing Custom Engine Heaters for Volkswagens. With expertise in TDI engines, FrostHeater has established an outstanding reputation for high quality products and top-notch service. With 27 Custom kits covering 1977 to 2015 diesels, FrostHeater has thousands and thousands of satisfied customers throughout North America.

Frequently Asked Questions

Ask us a question