{"product_id":"porter-cable-874289-brush-retainer-assembly-genuine-oem-replacement-carbon-brush-assembly","title":"Porter-Cable 874289 Brush \u0026 Retainer Assembly – Genuine OEM Replacement Carbon Brush Assembly","description":"\u003cdiv class=\"\" data-turn-id-container=\"6befc926-2429-4641-87dc-c44f7c77824e\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--sticky-padding-top)\" dir=\"auto\" data-turn-id=\"6befc926-2429-4641-87dc-c44f7c77824e\" data-turn-id-container=\"6befc926-2429-4641-87dc-c44f7c77824e\" data-testid=\"conversation-turn-531\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a564ce8-dd20-83ea-a458-fe6abd848766-80\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a564ce8-dd20-83ea-a458-fe6abd848766-80\" data-turn-id-container=\"request-6a564ce8-dd20-83ea-a458-fe6abd848766-80\" data-testid=\"conversation-turn-532\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"d7cef4ef-c67f-40a4-9a0a-80b1ad17656b\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"207\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 874289\u003cbr data-start=\"23\" data-end=\"26\"\u003e\u003cstrong data-start=\"26\" data-end=\"39\"\u003eCategory:\u003c\/strong\u003e Power Tool Parts → Motor Components → Carbon Brush Assemblies\u003cbr data-start=\"101\" data-end=\"104\"\u003e\u003cstrong data-start=\"104\" data-end=\"113\"\u003eType:\u003c\/strong\u003e Porter-Cable 874289 Brush \u0026amp; Retainer Assembly – Genuine OEM Replacement Carbon Brush Assembly\u003c\/p\u003e\n\u003chr data-start=\"209\" data-end=\"212\"\u003e\n\u003cp data-start=\"311\" data-end=\"997\"\u003eThe \u003cstrong data-start=\"315\" data-end=\"364\"\u003ePorter-Cable 874289 Brush \u0026amp; Retainer Assembly\u003c\/strong\u003e is a genuine OEM replacement carbon brush assembly designed for compatible \u003cstrong data-start=\"440\" data-end=\"503\"\u003ePorter-Cable, DeWalt, Black \u0026amp; Decker, and Delta power tools\u003c\/strong\u003e. This assembly includes \u003cstrong data-start=\"528\" data-end=\"566\"\u003eone carbon brush with its retainer\u003c\/strong\u003e, supplying electrical current from the stationary portion of the motor to the rotating armature for proper motor operation. Because carbon brushes are normal wear items, replacing worn brushes helps restore motor performance, improve electric braking (where applicable), and reduce intermittent operation. For best results, manufacturers recommend replacing \u003cstrong data-start=\"925\" data-end=\"958\"\u003eboth brushes at the same time\u003c\/strong\u003e.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1178\" data-end=\"1181\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1183\" data-end=\"1209\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1211\" data-end=\"1639\"\u003e\n\u003cli data-section-id=\"hpafvy\" data-start=\"1211\" data-end=\"1236\"\u003e\n\u003cstrong data-start=\"1213\" data-end=\"1229\"\u003ePart Number:\u003c\/strong\u003e 874289\u003c\/li\u003e\n\u003cli data-section-id=\"vjgkmv\" data-start=\"1237\" data-end=\"1280\"\u003eGenuine OEM Porter-Cable replacement part\u003c\/li\u003e\n\u003cli data-section-id=\"1nz2yd8\" data-start=\"1281\" data-end=\"1329\"\u003eReplacement carbon brush and retainer assembly\u003c\/li\u003e\n\u003cli data-section-id=\"84tkus\" data-start=\"1330\" data-end=\"1398\"\u003eRestores electrical contact between the armature and motor circuit\u003c\/li\u003e\n\u003cli data-section-id=\"u5uc60\" data-start=\"1399\" data-end=\"1448\"\u003eHelps improve motor performance and reliability\u003c\/li\u003e\n\u003cli data-section-id=\"c746zv\" data-start=\"1449\" data-end=\"1503\"\u003eSupports proper electric braking on compatible tools\u003c\/li\u003e\n\u003cli data-section-id=\"p6iksq\" data-start=\"1504\" data-end=\"1532\"\u003eDirect-fit OEM replacement\u003c\/li\u003e\n\u003cli data-section-id=\"ny3oa5\" data-start=\"1533\" data-end=\"1639\"\u003eSold individually; \u003cstrong data-start=\"1554\" data-end=\"1601\"\u003etwo brushes are typically required per tool\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1641\" data-end=\"1644\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1646\" data-end=\"1673\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1675\" data-end=\"1698\"\u003e\u003cstrong data-start=\"1675\" data-end=\"1691\"\u003ePart Number:\u003c\/strong\u003e 874289\u003c\/p\u003e\n\u003cp data-start=\"1700\" data-end=\"1755\"\u003e\u003cstrong data-start=\"1700\" data-end=\"1717\"\u003eManufacturer:\u003c\/strong\u003e Porter-Cable \/ Stanley Black \u0026amp; Decker\u003c\/p\u003e\n\u003cp data-start=\"1757\" data-end=\"1800\"\u003e\u003cstrong data-start=\"1757\" data-end=\"1774\"\u003eProduct Type:\u003c\/strong\u003e Brush \u0026amp; Retainer Assembly\u003c\/p\u003e\n\u003cp data-start=\"1802\" data-end=\"1843\"\u003e\u003cstrong data-start=\"1802\" data-end=\"1818\"\u003eApplication:\u003c\/strong\u003e Universal Electric Motor\u003c\/p\u003e\n\u003cp data-start=\"1845\" data-end=\"1862\"\u003e\u003cstrong data-start=\"1845\" data-end=\"1858\"\u003eOEM Part:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"1864\" data-end=\"1959\"\u003e\u003cstrong data-start=\"1864\" data-end=\"1877\"\u003eQuantity:\u003c\/strong\u003e Sold Individually (Most tools require two.) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1961\" data-end=\"1964\"\u003e\n\u003ch2 data-section-id=\"17z2fqi\" data-start=\"1966\" data-end=\"1992\"\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp data-start=\"1994\" data-end=\"2097\"\u003eThe \u003cstrong data-start=\"1998\" data-end=\"2047\"\u003ePorter-Cable 874289 Brush \u0026amp; Retainer Assembly\u003c\/strong\u003e fits numerous compatible corded power tools from:\u003c\/p\u003e\n\u003ch3 data-section-id=\"wi3rbc\" data-start=\"2099\" data-end=\"2120\"\u003eCompatible Brands\u003c\/h3\u003e\n\u003cul data-start=\"2122\" data-end=\"2186\"\u003e\n\u003cli data-section-id=\"1k2jd6q\" data-start=\"2122\" data-end=\"2140\"\u003e\u003cstrong data-start=\"2124\" data-end=\"2140\"\u003ePorter-Cable\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"6fxhl3\" data-start=\"2141\" data-end=\"2153\"\u003e\u003cstrong data-start=\"2143\" data-end=\"2153\"\u003eDeWalt\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"bqx6if\" data-start=\"2154\" data-end=\"2174\"\u003e\u003cstrong data-start=\"2156\" data-end=\"2174\"\u003eBlack \u0026amp; Decker\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"kond8w\" data-start=\"2175\" data-end=\"2186\"\u003e\u003cstrong data-start=\"2177\" data-end=\"2186\"\u003eDelta\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2188\" data-end=\"2230\"\u003eCommon compatible tool categories include:\u003c\/p\u003e\n\u003cul data-start=\"2232\" data-end=\"2345\"\u003e\n\u003cli data-section-id=\"1gsz94o\" data-start=\"2232\" data-end=\"2252\"\u003eReciprocating saws\u003c\/li\u003e\n\u003cli data-section-id=\"1bkb3k7\" data-start=\"2253\" data-end=\"2270\"\u003eElectric drills\u003c\/li\u003e\n\u003cli data-section-id=\"gxugg4\" data-start=\"2271\" data-end=\"2291\"\u003ePortable band saws\u003c\/li\u003e\n\u003cli data-section-id=\"174qwnb\" data-start=\"2292\" data-end=\"2345\"\u003eAdditional corded power tools using part \u003cstrong data-start=\"2335\" data-end=\"2345\"\u003e874289\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2347\" data-end=\"2385\"\u003eExamples of compatible models include:\u003c\/p\u003e\n\u003cul data-start=\"2387\" data-end=\"2575\"\u003e\n\u003cli data-section-id=\"14jcy3e\" data-start=\"2387\" data-end=\"2423\"\u003e\u003cstrong data-start=\"2389\" data-end=\"2423\"\u003ePorter-Cable 1197 Type 1 Drill\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"25ro3p\" data-start=\"2424\" data-end=\"2460\"\u003e\u003cstrong data-start=\"2426\" data-end=\"2460\"\u003eDeWalt DW310 Reciprocating Saw\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"jjsml8\" data-start=\"2461\" data-end=\"2494\"\u003eVarious Porter-Cable Tiger Saws\u003c\/li\u003e\n\u003cli data-section-id=\"miyhzi\" data-start=\"2495\" data-end=\"2575\"\u003eSelect Black \u0026amp; Decker portable band saws \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2577\" data-end=\"2693\"\u003eAlways verify your tool model, type number, and original part number before ordering to ensure proper compatibility.\u003c\/p\u003e\n\u003chr data-start=\"2695\" data-end=\"2698\"\u003e\n\u003ch2 data-section-id=\"mcom10\" data-start=\"2700\" data-end=\"2740\"\u003eFunction of the Carbon Brush Assembly\u003c\/h2\u003e\n\u003cp data-start=\"2742\" data-end=\"2798\"\u003eThe \u003cstrong data-start=\"2746\" data-end=\"2782\"\u003e874289 Brush \u0026amp; Retainer Assembly\u003c\/strong\u003e is designed to:\u003c\/p\u003e\n\u003cul data-start=\"2800\" data-end=\"3130\"\u003e\n\u003cli data-section-id=\"8cenub\" data-start=\"2800\" data-end=\"2854\"\u003eTransfer electrical current to the rotating armature\u003c\/li\u003e\n\u003cli data-section-id=\"moqhlb\" data-start=\"2855\" data-end=\"2892\"\u003eMaintain consistent motor operation\u003c\/li\u003e\n\u003cli data-section-id=\"1royay\" data-start=\"2893\" data-end=\"2938\"\u003eSupport proper motor speed and power output\u003c\/li\u003e\n\u003cli data-section-id=\"1no7yys\" data-start=\"2939\" data-end=\"2990\"\u003eHelp restore electric braking on compatible tools\u003c\/li\u003e\n\u003cli data-section-id=\"1nqzzyz\" data-start=\"2991\" data-end=\"3051\"\u003eReduce intermittent motor operation caused by worn brushes\u003c\/li\u003e\n\u003cli data-section-id=\"jy1j0g\" data-start=\"3052\" data-end=\"3130\"\u003eRestore the factory motor brush system \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3132\" data-end=\"3135\"\u003e\n\u003ch2 data-section-id=\"1cnbljb\" data-start=\"3137\" data-end=\"3174\"\u003eCommon Signs Replacement Is Needed\u003c\/h2\u003e\n\u003cp data-start=\"3176\" data-end=\"3217\"\u003eReplace the brush assembly if you notice:\u003c\/p\u003e\n\u003cul data-start=\"3219\" data-end=\"3464\"\u003e\n\u003cli data-section-id=\"bmn1ih\" data-start=\"3219\" data-end=\"3249\"\u003eIntermittent motor operation\u003c\/li\u003e\n\u003cli data-section-id=\"sl4wpk\" data-start=\"3250\" data-end=\"3271\"\u003eReduced motor power\u003c\/li\u003e\n\u003cli data-section-id=\"pmxwk6\" data-start=\"3272\" data-end=\"3307\"\u003eExcessive sparking at the brushes\u003c\/li\u003e\n\u003cli data-section-id=\"18zug17\" data-start=\"3308\" data-end=\"3343\"\u003ePoor electric braking performance\u003c\/li\u003e\n\u003cli data-section-id=\"6eerqt\" data-start=\"3344\" data-end=\"3381\"\u003eBrushes worn close to the lead wire\u003c\/li\u003e\n\u003cli data-section-id=\"1c5kowz\" data-start=\"3382\" data-end=\"3464\"\u003eCracked, chipped, or burned carbon brushes \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3466\" data-end=\"3612\"\u003eBecause carbon brushes wear through normal use, replacing them before they become excessively worn helps prevent damage to the motor's commutator.\u003c\/p\u003e\n\u003chr data-start=\"3614\" data-end=\"3617\"\u003e\n\u003ch2 data-section-id=\"10va281\" data-start=\"3619\" data-end=\"3650\"\u003eInstallation \u0026amp; Service Notes\u003c\/h2\u003e\n\u003cp data-start=\"3652\" data-end=\"3728\"\u003eDisconnect the tool from its power source before performing any maintenance.\u003c\/p\u003e\n\u003cp data-start=\"3730\" data-end=\"4284\"\u003eAccess the motor housing according to the manufacturer's service instructions and remove the worn \u003cstrong data-start=\"3828\" data-end=\"3864\"\u003e874289 Brush \u0026amp; Retainer Assembly\u003c\/strong\u003e. Install the replacement brush in the same orientation as the original, ensuring the brush moves freely within the holder and the spring applies proper pressure against the commutator. Replace the second brush at the same time for balanced wear. After reassembly, operate the tool without a load for several minutes to allow the new brushes to seat properly against the commutator. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4286\" data-end=\"4464\"\u003e\u003cstrong data-start=\"4286\" data-end=\"4300\"\u003eImportant:\u003c\/strong\u003e Always verify your tool model and original part number before ordering. Inspect the commutator for excessive wear, burning, or scoring while replacing the brushes.\u003c\/p\u003e\n\u003chr data-start=\"4466\" data-end=\"4469\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4471\" data-end=\"4501\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4503\" data-end=\"4970\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"vwzxq\" data-start=\"4503\" data-end=\"4566\"\u003eInspect carbon brushes periodically on frequently used tools.\u003c\/li\u003e\n\u003cli data-section-id=\"10245gx\" data-start=\"4567\" data-end=\"4626\"\u003eReplace both brushes together for even motor performance.\u003c\/li\u003e\n\u003cli data-section-id=\"1cee517\" data-start=\"4627\" data-end=\"4690\"\u003eKeep motor ventilation openings clean to reduce dust buildup.\u003c\/li\u003e\n\u003cli data-section-id=\"168taon\" data-start=\"4691\" data-end=\"4753\"\u003eAvoid overloading the tool, which can accelerate brush wear.\u003c\/li\u003e\n\u003cli data-section-id=\"t5jkp6\" data-start=\"4754\" data-end=\"4809\"\u003eInspect the commutator whenever brushes are replaced.\u003c\/li\u003e\n\u003cli data-section-id=\"mq8cok\" data-start=\"4810\" data-end=\"4970\" data-is-last-node=\"\"\u003eUse genuine OEM replacement parts to maintain factory fit, reliable electrical contact, and long-term motor performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Porter Cable","offers":[{"title":"Default Title","offer_id":53578319724907,"sku":"874289","price":15.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/874289.jpg?v=1784604408","url":"https:\/\/generalsprayers.com\/products\/porter-cable-874289-brush-retainer-assembly-genuine-oem-replacement-carbon-brush-assembly","provider":"GeneralSprayers","version":"1.0","type":"link"}