Hot Racing 36mm aluminum full coverage water cooling jacket for the Traxxas Spartan.FEATURES: - CNC machined billet aluminum construction- Full coverage and machined cooling fins for increased heat transfer- O-ring seals for leak mitigation- Dual water pickup for additional cooling- Black anodized finish for durability, corrosion resistance, and great looks- Secondary processed machining exposes aluminum for enhanced aesthetics- Installs on Traxxas 36mm marine motorYOU WILL RECEIVE: - One (1) aluminum cooling jacketSPECIFICATIONS: - length: 63mm (2.5 inches)- Inner diameter: 36mm (1.4 inches) - Outer diameter:54mm (2.1 inches)- Weight: 3.2ozREQUIREMENTS: - Adding a second water line and a water outlet - Installing and attaching linkage, water line, and dual water outletCOMMENTS: - Replaces Traxxas factory TRA5760 rubber water cooling jacket (would not work with DCB M41) - For ultimate cooling, combine with Hot Racing dual pickup rudder blade and SPN28WE06 dual port cooling outlet description revised by: PP January 10, 2017