{"product_id":"1877738-washer-hard-fits-caterpillar-models","title":"1877738 Washer-Hard Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Hard Washer for Caterpillar (Cat) Construction Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement Washer-Hard (Cat part number 1877738 \/ 187-7738) is a hardened flat washer used in Caterpillar heavy construction and engine applications, including cylinder head assemblies and fastener groups. It provides a stable, load-bearing surface under bolt heads and nuts to protect mating surfaces and maintain proper clamping force in high-stress assemblies.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType: Hard (Hardened) Flat Washer\u003c\/li\u003e\n\u003cli\u003eFits Bolt Size: 3\/4 in.\u003c\/li\u003e\n\u003cli\u003eThickness: 3.5 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Hardened Steel\u003c\/li\u003e\n\u003cli\u003eCoating: Zinc Phosphate\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar:\u003c\/strong\u003e Fits a wide range of Caterpillar construction, engine, and industrial equipment -- verify fitment by serial number or consult your Cat parts manual before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1877738, 187-7738\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42452138066003,"sku":"1877738","price":35.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1877738_01.jpg?v=1757777639","url":"https:\/\/www.reliableaftermarketparts.com\/en-au\/products\/1877738-washer-hard-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}