{"product_id":"dorman-594-785-engine-harmonic-balancer","title":"Dorman 594-785 Engine Harmonic Balancer","description":"\u003ch2\u003eDorman 594-785 Harmonic Balancer for Nissan\u003c\/h2\u003e\u003cp\u003eThis Dorman harmonic balancer is a direct replacement for select Nissan Pickup and Nissan D21 applications. Built with a stress-resistant rubber bond and ductile steel construction, it helps absorb engine vibration while adding strength for demanding underhood conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement harmonic balancer for select Nissan engines\u003c\/li\u003e\n\u003cli\u003eStress-resistant rubber bond helps isolate crankshaft vibration\u003c\/li\u003e\n\u003cli\u003eDuctile steel construction for tensile and impact strength\u003c\/li\u003e\n\u003cli\u003eBlack finish with degree markings for timing reference\u003c\/li\u003e\n\u003cli\u003eV-belt pulley design with 3 grooves\u003c\/li\u003e\n\u003cli\u003eKeyway type included for proper crankshaft alignment\u003c\/li\u003e\n\u003cli\u003ePart number 594-785 for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eBuilt for 1991-1997 Nissan Pickup and 1990-1994 Nissan D21 applications, this engine harmonic balancer is engineered to support smooth crankshaft operation and consistent accessory drive performance. The 594-785 harmonic balancer uses a rubber bond to absorb vibration at the crankshaft, while the ductile steel body adds durability for long-term service. With a 158 mm outside diameter, 30 mm inside diameter, 29 mm depth, and degree markings, it provides the dimensional and visual reference points needed for accurate replacement work. This Dorman 594-785 is a practical OE-style replacement for Nissan Pickup and Nissan D21 owners servicing vibration-related engine concerns.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCrankshaft vibration felt through the engine or accessory drive\u003c\/li\u003e\n\u003cli\u003eWorn or separated harmonic balancer rubber bond\u003c\/li\u003e\n\u003cli\u003eTiming reference visibility issues during service\u003c\/li\u003e\n\u003cli\u003eDrive belt wobble or irregular pulley operation\u003c\/li\u003e\n\u003cli\u003eNoise caused by a damaged front engine balancer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify pulley groove count, keyway style, mounting dimensions, and belt type before installation. This harmonic balancer is designed for V-belt applications and does not include a center bolt or washer. Confirm the crankshaft snout and mounting hole dimensions match the original part before assembly. For best results, inspect the front crank seal, belts, and related pulleys during replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this replacement harmonic balancer with a focus on fit, function, and material durability. It cross-references PowerBond by Dayco PB1785N and 1230386G00 for the same application.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52776258470069,"sku":"BKKY-594-785","price":214.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_594785_Fro.jpg?v=1783493788","url":"https:\/\/www.partcatalog.com\/products\/dorman-594-785-engine-harmonic-balancer","provider":"PartCatalog","version":"1.0","type":"link"}