Site Information

 Loading... Please wait...
  • HARD Motorsport BMW S50/M50 Heater Core Coolant Block Off Plate
  • BMW S50/M50 Heater Core Coolant Block Off Plate Rear with gasket
  • Coolant Plug Option
  • HARD Motorsport BMW E36 Heater Core Coolant Block Off Plate Show With Plug Option
  • Image 5
  • Image 6

HARD Motorsport Heater Core Coolant Block-off Plate - BMW E36 M3


Product Description

Our HARD Motorsport Block-off Plate installs in the rear of the head for use with Euro coolant plumbing on U.S. engines, or for custom race plumbing. 

Machined out of quality aluminum. Fits all U.S. M50, M52, S50, and S52 6-cylinder engines, including the 323, 325, 328, M3, and the Z3.

All hardware and gaskets are included.


6Mx16mm Hex Head Bolt x2
Gasket x1


Lower Coolant Line Plug (see photos) 


Product Reviews

Write Review

  1. Great Product ! 5 Star Review

    Posted by on 6th Mar 2018

    Very easy to install, comes with everything you need which is nice. I added the extra plug for the lower line which was worth it. Seems to work very well but I have yet to put many miles on the car.

  2. Everything 5 Star Review

    Posted by on 8th Mar 2017

    Comes with everything you need, including shorter than stock bolts. Nice material, Very quality

  3. Easy time saver & budget friendly 5 Star Review

    Posted by on 16th Dec 2016

    This is an awesome complete package with nicely machined plate, gasket, and proper length bolts. Big time saver and cleans up the heater delete clutter.

  4. E36 Heater Delete 5 Star Review

    Posted by on 2nd Aug 2016

    This blank off plate fit perfectly and is robust enough to hold back coolant pressures. Installed as part of a heater bypass mod for my E36 track car. Drove Road Atlanta hard for two days in July! No leaks. Installed with provided gasket only, no additional sealer as I intend to convert back each winter. Good product.

  5. very pleased 5 Star Review

    Posted by on 7th Dec 2015

    Install is easy. The fact a gasket and new bolts are included is nice touch. Installation is easy took maybe 5-10 minutes.

  6. Excellent plate 5 Star Review

    Posted by on 11th Aug 2015

    The plate is shown exactly what is on the website. Product was delivered in 2 days.

  7. Easy install and good fit 5 Star Review

    Posted by on 30th Mar 2015

    I purchased this block-off plate for a track build. The piece fits nicely and follows the contour of the engine well. It comes with the gasket and new hardware, which was a plus. Haven't ran the engine yet, but I don't expect any issues from this part. Fast shipping.

  8. Works perfect 5 Star Review

    Posted by on 19th Aug 2014

    This is the 2nd block off plate I've bought from hard motorsport. Fitment is perfect and I have had no issues.

Find Similar Products by Category