Titanium Thermostat Housing Replacement Kit 

The JDC Titanium Thermostat Housing Replacement Hardware Kit replaces the worn-out hardware on your thermostat housing. We have hardware for the top thermostat bolts, as well as the lower bolts in the front that hold the thermostat housing to the head. Each piece of hardware is professionally CNC machined from a single piece of 6AL-4V Grade 5 Titanium and is available in multiple color options. Each piece is hand polished before receiving our proprietary cold anodizing treatment for vibrant colors that will last a lifetime!

Applications:

  • 03-06 Evo 8/9
  • 01-02 Evo 7 (Fitment is unconfirmed, but should be the same. If you can confirm fitment is the same as Evo 8/9 please let us know so we can update this for future customers.)

Kit Options:

  • Full Replacement Kit
    • (3) Top thermostat bolts & Washers
    • (2) Long bolts for the thermostat housing to head connection
    • (2) Short  bolts for the thermostat housing to head connection
  • Top Hardware Kit Only
    • (3) Top thermostat bolts & Washers
  • Thermostat to Head Hardware Kit Only
    • (2) Long bolts for the thermostat housing to head connection
    • (2) Short bolts for the thermostat housing to head connection

    Installation: 

    • Unless your Evo is completely apart, it's smart to replace one bolt at a time so you don't break the seal and leak antifreeze.
    • Torque each bolt back to factory recommended settings.

    About our titanium:

    • CNC machined from a single piece of Ti6Al-4V (Grade 5) titanium.
    • Each piece is hand-polished before receiving our proprietary cold anodizing treatment for colors that will last a lifetime!
    • For a color chart and information on our titanium products please click here.

    Shipping Times:

    • All JDC titanium products are made to order unless otherwise stated on the item listing. Please see the red banner at the top of the website for the current estimated turnaround time. Production time can vary depending on your order size, products ordered, and the difficulty of custom options requested.

      CNC machined from a single piece of Ti6Al-4V (Grade 5) titanium.

      Each piece is hand-polished before receiving our proprietary cold anodizing treatment for colors that will last a lifetime!

      For a color chart and information on our titanium products please click here.

      GR5 Titanium (Grade 5 Titanium) is a premium alloy composed primarily of titanium, with small amounts of aluminum (6%) and vanadium (4%) for added strength and versatility. Renowned for its exceptional strength-to-weight ratio, GR5 Titanium offers superior corrosion resistance, excellent heat tolerance, and remarkable durability. This makes it an ideal material for aerospace, automotive, medical, and high-performance applications, where lightweight strength and longevity are critical. Its ability to be anodized into vibrant colors further enhances its appeal for customization in industries like motorsports and jewelry.

      Customer Reviews

      Based on 18 reviews
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      C
      Christian C.
      Evo 6!

      Bought this for my evo 8 engine going into my Evo 6. Was super excited to see it fit with the evo 6 thermostat case, but eventually put back the evo 8 thermostat case due to waterline fitment. JDC constantly delivers perfection without skipping a beat. Favourite business, and products to put on my car by far.

      M
      Matthew W.
      Thermo housing bolt kit

      Amazing as always!!!

      J
      Jason G. (Portland, US)
      Titanium is addicting!

      With each JD Customs titanium piece I put on my Evo 8.. only makes me crave more for my engine bay!! Honestly this titanium has cleaned up my engine bay so much I can't wait to see what bolt kits pops up next. Keep up the great work JD Customs!!

      J
      Jason G.
      Titanium is addicting!

      With each JD Customs titanium piece I put on my Evo 8.. only makes me crave more for my engine bay!! Honestly this titanium has cleaned up my engine bay so much I can't wait to see what bolt kits pops up next. Keep up the great work JD Customs!!

      JD Customs USA

      JD Customs USA specializes in bespoke titanium pieces with virtually unlimited customization options. Known for vibrant colors and unmatched craftsmanship, we bring your creative visions to life. From precision to personalization, our commitment to quality ensures every piece exceeds expectations. At JD Customs USA, we don’t just create products – we deliver perfection.

      View More JD Customs USA Products