{"product_id":"wilwood-150-tx1-6617k-tx1-brake-pads-w6a-w4a-aero4-aero6","title":"Wilwood Pad Set TX1 6617 W6A \/W4A AERO 4\/6 (.670in Thk)","description":"\u003ch4\u003eHigh-Temperature TX1 Racing Compound for Wilwood W6A, W4A, Aero 4, and Aero 6 Calipers\u003c\/h4\u003e\n\u003cp\u003eThe Wilwood 150-TX1-6617K TX1 brake pad set is a high-temperature racing compound designed for the 6617 pad shape used across Wilwood's W6A Radial Mount, W4A Radial Mount, Aero4, Aero4-DS, Aero6, Aero6-DS, and AeroDM lug-mount calipers. TX1 is one of Wilwood's most popular road racing and high-performance street-track compounds, offering very high friction in the upper temperature range with consistent bite from cold and manageable fade characteristics at sustained high temperatures. It delivers strong, linear pedal feel on track and remains drivable during street warm-up laps where other dedicated race compounds become unpredictable below operating temperature.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWilwood 150-TX1-6617K TX1 compound, axle set (front or rear pair)\u003c\/li\u003e\n\u003cli\u003eDesigned for W6A, W4A, Aero4, Aero4-DS, Aero6, Aero6-DS, and AeroDM caliper applications\u003c\/li\u003e\n\u003cli\u003eVery high friction compound optimized for temperatures above 600 degrees F\u003c\/li\u003e\n\u003cli\u003eConsistent initial bite from cold with manageable warm-up behavior for street-track use\u003c\/li\u003e\n\u003cli\u003e0.670 inch pad thickness (6617 shape)\u003c\/li\u003e\n\u003cli\u003eHigh wear resistance for extended track session pad life\u003c\/li\u003e\n\u003cli\u003eCompatible with Quick-Silver and Quick-Silver\/ST caliper variants\u003c\/li\u003e\n\u003cli\u003eAxle set quantity covers one axle end (two calipers front or rear)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e150-TX1-6617K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWilwood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompound\u003c\/td\u003e\n\u003ctd\u003eTX1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Shape\u003c\/td\u003e\n\u003ctd\u003e6617\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Thickness\u003c\/td\u003e\n\u003ctd\u003e0.670 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eAxle Set (covers 1 axle end, 2 calipers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Calipers\u003c\/td\u003e\n\u003ctd\u003eW6A, W4A, Aero4, Aero4-DS, Aero6, Aero6-DS, AeroDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuick-Silver Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp Range\u003c\/td\u003e\n\u003ctd\u003eHigh-temperature (above 600 degrees F to 1300+ degrees F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProp 65\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1 axle set of Wilwood TX1 compound brake pads in 6617 shape\u003c\/li\u003e\n\u003cli\u003eAnti-squeal shims (if applicable per Wilwood packaging)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAbout Wilwood\u003c\/h4\u003e\n\u003cp\u003eWilwood Disc Brakes has designed and manufactured high-performance braking systems in Camarillo, California since 1977. Wilwood supplies brake components for circle track, road racing, drag racing, and street performance applications. The TX1 compound is part of Wilwood's PolyMatrix brake pad series, engineered to meet the specific temperature, friction, and fade requirements of track-day and competition use on vehicles running Wilwood caliper kits.\u003c\/p\u003e\n\n\u003ch4\u003eRelated Parts on Our Site\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brake-pads\"\u003eBrowse All Brake Pads\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cstrong\u003eWhat is the Wilwood 150-TX1-6617K?\u003c\/strong\u003e\n\u003cp\u003eThe Wilwood 150-TX1-6617K is an axle set of TX1 compound brake pads in the 6617 pad shape at 0.670-inch thickness, designed for Wilwood W6A, W4A, Aero4, Aero4-DS, Aero6, Aero6-DS, and AeroDM calipers. TX1 is a high-temperature road racing and street-track compound that operates optimally above 600 degrees F with strong friction and good fade resistance at sustained track temperatures.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat calipers does the 6617 pad shape fit?\u003c\/strong\u003e\n\u003cp\u003eThe 6617 pad shape is used in multiple Wilwood caliper families: W6A Radial Mount and its Quick-Silver and Quick-Silver\/ST variants, W4A Radial Mount and its variants, Aero4, Aero4-DS, Aero6, Aero6-DS, and AeroDM lug-mount calipers. Confirm your specific caliper part number against Wilwood's pad compatibility chart before ordering to ensure exact fitment.\u003c\/p\u003e\n\n\u003cstrong\u003eIs TX1 compound suitable for street driving?\u003c\/strong\u003e\n\u003cp\u003eTX1 is a dual-purpose compound best suited for drivers who run track days with street warm-up laps. It has reasonable initial bite when cold compared to full race-only compounds, but it performs optimally at elevated temperatures above 600 degrees F. For purely street-driven applications without regular track use, a lower-temperature compound like BP-10 or PolyMatrix E may provide more consistent everyday feel.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat is the temperature range for TX1 compound?\u003c\/strong\u003e\n\u003cp\u003eTX1 is classified by Wilwood as a high-temperature compound, operating effectively at sustained temperatures above 600 degrees F and maintaining friction through the 1,000-1,300 degree F range typical of asphalt road racing. For drag race, dirt track, or pure street applications typically operating below 500-600 degrees F, a medium-temperature compound may provide more consistent feel.\u003c\/p\u003e\n\n\u003cstrong\u003eHow many pads are in the 150-TX1-6617K axle set?\u003c\/strong\u003e\n\u003cp\u003eAn axle set covers one axle end and includes the pad quantity required for two calipers at that position (front or rear). For a full vehicle set covering both front and rear axles, two separate axle sets are required. Confirm whether you need front-only, rear-only, or a complete four-corner kit for your application.\u003c\/p\u003e\n\n\u003cstrong\u003eAre TX1 pads compatible with Wilwood Quick-Silver caliper variants?\u003c\/strong\u003e\n\u003cp\u003eYes. The 6617 pad shape and TX1 compound are listed as compatible with W6A Quick-Silver, W6A Quick-Silver\/ST, W4A Quick-Silver, and W4A Quick-Silver\/ST caliper variants in addition to the standard radial mount versions. Quick-Silver designates a Wilwood feature upgrade, not a change in pad shape.\u003c\/p\u003e\n\n\u003cstrong\u003eDo TX1 pads require brake-in bedding?\u003c\/strong\u003e\n\u003cp\u003eYes. All performance brake compounds, including TX1, benefit from a proper bedding procedure to transfer an even layer of pad material to the rotor surface. A standard bedding procedure involves a series of progressive stops from moderate to high speed with cooling intervals between runs. Avoid hard emergency stops before bedding is complete to prevent uneven pad deposit and vibration.\u003c\/p\u003e\n\n\u003cstrong\u003eCan TX1 pads be used with iron or carbon-ceramic rotors?\u003c\/strong\u003e\n\u003cp\u003eTX1 is designed primarily for use with cast iron rotors, which are standard on Wilwood brake kit applications. Consult Wilwood technical support before using TX1 compound with carbon-ceramic composite rotors, as high-friction compounds optimized for iron can cause accelerated wear or surface damage on carbon-ceramic rotor materials.\u003c\/p\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eConfirm your caliper uses the 6617 pad shape and is compatible with the W6A, W4A, Aero4, Aero6, or AeroDM families before installing 150-TX1-6617K.\u003c\/li\u003e\n\u003cli\u003eClean caliper bracket and piston faces of any old pad material and brake dust.\u003c\/li\u003e\n\u003cli\u003eInspect rotors for minimum thickness, scoring, and heat cracks before installing fresh pads.\u003c\/li\u003e\n\u003cli\u003eInstall new TX1 pads into caliper bracket and confirm pads slide freely without binding.\u003c\/li\u003e\n\u003cli\u003eReassemble caliper onto bracket and torque caliper bolts to Wilwood specification.\u003c\/li\u003e\n\u003cli\u003ePump brake pedal to seat pads against rotor before driving.\u003c\/li\u003e\n\u003cli\u003ePerform a proper bedding procedure: 5-8 progressive stops from 40-60 mph with cooling intervals before committing to full track use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":46048536428623,"sku":"WIL150-TX1-6617K","price":283.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/Wilwood_TX1_Pads_W6A_W4A_Aero_4_6_Axle_Set.png?v=1784034169","url":"https:\/\/www.blackopsautoworks.com\/products\/wilwood-150-tx1-6617k-tx1-brake-pads-w6a-w4a-aero4-aero6","provider":"Black Ops Auto Works","version":"1.0","type":"link"}