{"product_id":"wilwood-130-4955","title":"Wilwood GM Metric Round Caliper Piston Seals, 2.750-Inch ID, Four-Pack","description":"\u003cp\u003eThis four-pack supplies round piston O-rings for the assigned 2.75-inch GM Metric caliper service arrangement. The listed seal dimensions are 2.750-inch ID and 0.139-inch section, with compound code 210A. Wilwood’s FL176 service table identifies the kit for the corresponding iron GM Metric calipers. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, from calipers and brake rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications; selection depends on the complete brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 130-4955\u003c\/li\u003e\n\u003cli\u003eService component: Caliper O-Ring Kit\u003c\/li\u003e\n\u003cli\u003eSeal profile: O-Ring\u003c\/li\u003e\n\u003cli\u003eManufacturer-listed seal inside diameters: 2.750 inches\u003c\/li\u003e\n\u003cli\u003eListed seal thickness: 0.139 inch\u003c\/li\u003e\n\u003cli\u003eManufacturer material code: 210A\u003c\/li\u003e\n\u003cli\u003ePack quantity: 4 Pack\u003c\/li\u003e\n\u003cli\u003eSeal fluid compatibility: DOT 3, DOT 4 and DOT 5 as specified for these seals. Follow the complete caliper and vehicle fluid requirements; do not mix silicone DOT 5 with DOT 3, DOT 4 or DOT 5.1.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eVerify the exact caliper reference and round groove profile before choosing the pack. A square ring of similar nominal diameter is a different service component. Inspect the piston, hydraulic bore and slide-pin hardware during repair, and establish the number of seals needed from the actual assembly.\u003c\/p\u003e\u003cp\u003eWith over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764692713650,"sku":"130-4955","price":18.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/130-4955-xl.jpg?v=1792514682","url":"https:\/\/pmbperformance.com\/products\/wilwood-130-4955","provider":"PMB Performance","version":"1.0","type":"link"}