{"product_id":"gp5142-plunger-seal-parts","title":"GP5142 Plunger \u0026 Seal Parts | 40 GPM @ 2000 PSI","description":"\u003cp\u003eThe wet-end seal stack for the GP5142 — from the crosshead pin through the plunger bore seals. This group contains the highest-frequency wear parts in the pump: O-rings, grooved ring, pressure ring, V-sleeve, sleeve support ring, seal sleeve, tension spring, oil scraper, and radial shaft seal, along with the structural plunger pipe, centering sleeve, tensioning screw, and copper ring.\u003c\/p\u003e\n\u003cp\u003eThese are the parts that go into a plunger repack. Dropping pressure under load without obvious valve damage almost always traces back to a worn plunger seal stack. The \u003cem\u003eGP5142 Packing Plunger Kit\u003c\/em\u003e covers the full repack in a single order — source individual components here when only part of the seal stack needs replacing.\u003c\/p\u003e\n\u003cp\u003eFor valve-related pressure loss, see \u003cem\u003eGP5142 Valve Assembly Parts\u003c\/em\u003e. Most seal components in this group are shared with the GP5132.\u003c\/p\u003e","brand":"Range Supply","offers":[{"title":"Crosshead Pin \/ 28 \/ 13281","offer_id":47620512514284,"sku":"44561-00-Z","price":99.89,"currency_code":"USD","in_stock":true},{"title":"Centering Sleeve \/ 29A \/ 7125","offer_id":47620512547052,"sku":"26430-00-Z","price":32.54,"currency_code":"USD","in_stock":true},{"title":"Plunger Pipe \/ 29B \/ 7736","offer_id":47620512579820,"sku":"44562-00-Z","price":593.77,"currency_code":"USD","in_stock":true},{"title":"Tensioning Screw \/ 29C \/ 13031","offer_id":47620512612588,"sku":"44563-00-Z","price":98.53,"currency_code":"USD","in_stock":true},{"title":"Copper Ring \/ 29D \/ 7755","offer_id":47620512645356,"sku":"25859-00-Z","price":5.46,"currency_code":"USD","in_stock":true},{"title":"Oil Scraper \/ 30 \/ 13282","offer_id":47620512678124,"sku":"44564-00-Z","price":5.24,"currency_code":"USD","in_stock":true},{"title":"Radial Shaft Seal \/ 31 \/ 13284","offer_id":47620512710892,"sku":"44565-00-Z","price":21.65,"currency_code":"USD","in_stock":true},{"title":"Seal Sleeve \/ 35 \/ 4325","offer_id":47620512743660,"sku":"44566-00-Z","price":358.35,"currency_code":"USD","in_stock":true},{"title":"O-Ring, Seal Liner, Inner \/ 35A \/ 8183","offer_id":47620512776428,"sku":"44567-00-Z","price":5.46,"currency_code":"USD","in_stock":true},{"title":"O-Ring, Seal Liner, Outer \/ 35B \/ 13286","offer_id":47620512809196,"sku":"44568-00-Z","price":6.98,"currency_code":"USD","in_stock":true},{"title":"Grooved Ring \/ 36 \/ 4323","offer_id":47620512841964,"sku":"44569-00-Z","price":26.76,"currency_code":"USD","in_stock":true},{"title":"Pressure Ring \/ 39 \/ 7744","offer_id":47620512874732,"sku":"44302-00-Z","price":128.98,"currency_code":"USD","in_stock":true},{"title":"V-Sleeve \/ 40 \/ 7745","offer_id":47620512907500,"sku":"44303-00-Z","price":40.25,"currency_code":"USD","in_stock":true},{"title":"Sleeve Support Ring \/ 41 \/ 7746","offer_id":47620512940268,"sku":"44304-00-Z","price":125.11,"currency_code":"USD","in_stock":true},{"title":"Tension Spring \/ 42 \/ 13297","offer_id":47620512973036,"sku":"44570-00-Z","price":23.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0221\/5788\/5512\/products\/GP5128_32_36_42_45_397ead9b-8408-4b25-a77d-6fc640631391.jpg?v=1741037441","url":"https:\/\/rangesupply.com\/products\/gp5142-plunger-seal-parts","provider":"Range Supply","version":"1.0","type":"link"}