{"product_id":"dewalt-149840-seal-sleeve-genuine-oem-replacement-pneumatic-nailer-sleeve-seal","title":"DeWalt \/ Bostitch 149840 Seal Sleeve – Genuine OEM Replacement Pneumatic Nailer Sleeve Seal","description":"\u003cdiv class=\"\" data-turn-id-container=\"ddd34b97-7cc5-496b-a24e-51b476f42958\" 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=\"ddd34b97-7cc5-496b-a24e-51b476f42958\" data-turn-id-container=\"ddd34b97-7cc5-496b-a24e-51b476f42958\" data-testid=\"conversation-turn-213\" 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-fe6abd848766-178\" 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-fe6abd848766-178\" data-turn-id-container=\"request-6a564ce8-dd20-83ea-a458-fe6abd848766-178\" data-testid=\"conversation-turn-214\" 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=\"085a3072-c804-4d85-a2a0-d383f791707b\" 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=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"217\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 149840\u003cbr data-start=\"23\" data-end=\"26\"\u003e\u003cstrong data-start=\"26\" data-end=\"39\"\u003eCategory:\u003c\/strong\u003e Power Tool Parts \u0026amp; Accessories → Pneumatic Nailer Parts → Seals \u0026amp; Sleeves\u003cbr data-start=\"113\" data-end=\"116\"\u003e\u003cstrong data-start=\"116\" data-end=\"125\"\u003eType:\u003c\/strong\u003e DeWalt \/ Bostitch 149840 Seal Sleeve – Genuine OEM Replacement Pneumatic Nailer Sleeve Seal\u003c\/p\u003e\n\u003chr data-start=\"219\" data-end=\"222\"\u003e\n\u003cp data-start=\"319\" data-end=\"974\"\u003eThe \u003cstrong data-start=\"323\" data-end=\"363\"\u003eDeWalt \/ Bostitch 149840 Seal Sleeve\u003c\/strong\u003e is a genuine OEM replacement pneumatic seal designed for compatible DeWalt, Bostitch, and Porter-Cable pneumatic nailers. This precision-engineered sleeve seal installs within the nailer's cylinder assembly to create an airtight seal between internal pneumatic components, helping maintain proper operating pressure during each firing cycle. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn, hardened, or damaged sleeve seals, helping restore consistent driving power, reduce air leaks, and improve overall tool performance.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1156\" data-end=\"1159\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1161\" data-end=\"1187\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1189\" data-end=\"1578\"\u003e\n\u003cli data-section-id=\"bwe6au\" data-start=\"1189\" data-end=\"1214\"\u003e\n\u003cstrong data-start=\"1191\" data-end=\"1207\"\u003ePart Number:\u003c\/strong\u003e 149840\u003c\/li\u003e\n\u003cli data-section-id=\"1pvx7cx\" data-start=\"1215\" data-end=\"1263\"\u003eGenuine OEM DeWalt \/ Bostitch replacement part\u003c\/li\u003e\n\u003cli data-section-id=\"6xbbsw\" data-start=\"1264\" data-end=\"1306\"\u003eReplacement pneumatic nailer sleeve seal\u003c\/li\u003e\n\u003cli data-section-id=\"1n38ss7\" data-start=\"1307\" data-end=\"1362\"\u003eCreates an airtight seal within the cylinder assembly\u003c\/li\u003e\n\u003cli data-section-id=\"1cqe5o9\" data-start=\"1363\" data-end=\"1399\"\u003eHelps prevent internal air leakage\u003c\/li\u003e\n\u003cli data-section-id=\"iundqk\" data-start=\"1400\" data-end=\"1458\"\u003eSupports consistent driving power and firing performance\u003c\/li\u003e\n\u003cli data-section-id=\"ebxn5h\" data-start=\"1459\" data-end=\"1497\"\u003ePrecision-molded rubber construction\u003c\/li\u003e\n\u003cli data-section-id=\"p6iksq\" data-start=\"1498\" data-end=\"1526\"\u003eDirect-fit OEM replacement\u003c\/li\u003e\n\u003cli data-section-id=\"fyhvnz\" data-start=\"1527\" data-end=\"1578\"\u003eManufactured to original equipment specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1580\" data-end=\"1583\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1585\" data-end=\"1612\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1614\" data-end=\"1637\"\u003e\u003cstrong data-start=\"1614\" data-end=\"1630\"\u003ePart Number:\u003c\/strong\u003e 149840\u003c\/p\u003e\n\u003cp data-start=\"1639\" data-end=\"1674\"\u003e\u003cstrong data-start=\"1639\" data-end=\"1656\"\u003eManufacturer:\u003c\/strong\u003e DeWalt \/ Bostitch\u003c\/p\u003e\n\u003cp data-start=\"1676\" data-end=\"1705\"\u003e\u003cstrong data-start=\"1676\" data-end=\"1693\"\u003eProduct Type:\u003c\/strong\u003e Seal Sleeve\u003c\/p\u003e\n\u003cp data-start=\"1707\" data-end=\"1724\"\u003e\u003cstrong data-start=\"1707\" data-end=\"1720\"\u003eOEM Part:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"1726\" data-end=\"1783\"\u003e\u003cstrong data-start=\"1726\" data-end=\"1742\"\u003eApplication:\u003c\/strong\u003e Pneumatic Nailer Cylinder Sealing System\u003c\/p\u003e\n\u003chr data-start=\"1785\" data-end=\"1788\"\u003e\n\u003ch2 data-section-id=\"17z2fqi\" data-start=\"1790\" data-end=\"1816\"\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp data-start=\"1818\" data-end=\"1875\"\u003eThe \u003cstrong data-start=\"1822\" data-end=\"1862\"\u003eDeWalt \/ Bostitch 149840 Seal Sleeve\u003c\/strong\u003e fits select:\u003c\/p\u003e\n\u003ch3 data-section-id=\"dqq1qy\" data-start=\"1877\" data-end=\"1889\"\u003eBostitch\u003c\/h3\u003e\n\u003cul data-start=\"1891\" data-end=\"2086\"\u003e\n\u003cli data-section-id=\"kn2ijn\" data-start=\"1891\" data-end=\"1932\"\u003e\n\u003cstrong data-start=\"1893\" data-end=\"1903\"\u003eRN46-1\u003c\/strong\u003e Coil Roofing Nailer (Type 0)\u003c\/li\u003e\n\u003cli data-section-id=\"d42tie\" data-start=\"1933\" data-end=\"1999\"\u003e\n\u003cstrong data-start=\"1935\" data-end=\"1945\"\u003eRN46-1\u003c\/strong\u003e Coil Roofing Nailer (Serial No. 133450000 and Higher)\u003c\/li\u003e\n\u003cli data-section-id=\"z258d5\" data-start=\"2000\" data-end=\"2056\"\u003e\n\u003cstrong data-start=\"2002\" data-end=\"2012\"\u003eSF150C\u003c\/strong\u003e Light Gauge Steel Sheathing Nailer (Type 0)\u003c\/li\u003e\n\u003cli data-section-id=\"5ffrm9\" data-start=\"2057\" data-end=\"2086\"\u003e\n\u003cstrong data-start=\"2059\" data-end=\"2070\"\u003eBRN175A\u003c\/strong\u003e Nailer (Type 1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1u59pd8\" data-start=\"2088\" data-end=\"2104\"\u003ePorter-Cable\u003c\/h3\u003e\n\u003cul data-start=\"2106\" data-end=\"2147\"\u003e\n\u003cli data-section-id=\"dkh3ik\" data-start=\"2106\" data-end=\"2147\"\u003e\n\u003cstrong data-start=\"2108\" data-end=\"2118\"\u003eRN175C\u003c\/strong\u003e Coil Roofing Nailer (Type 1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2149\" data-end=\"2298\"\u003eAlways verify your tool model, type number, serial number (when applicable), and original part number before ordering to ensure proper compatibility.\u003c\/p\u003e\n\u003chr data-start=\"2300\" data-end=\"2303\"\u003e\n\u003ch2 data-section-id=\"55iu5c\" data-start=\"2305\" data-end=\"2335\"\u003eFunction of the Seal Sleeve\u003c\/h2\u003e\n\u003cp data-start=\"2337\" data-end=\"2466\"\u003eThe \u003cstrong data-start=\"2341\" data-end=\"2381\"\u003eDeWalt \/ Bostitch 149840 Seal Sleeve\u003c\/strong\u003e is a critical sealing component within the nailer's pneumatic cylinder. It helps to:\u003c\/p\u003e\n\u003cul data-start=\"2468\" data-end=\"2735\"\u003e\n\u003cli data-section-id=\"x9aitx\" data-start=\"2468\" data-end=\"2521\"\u003eCreate an airtight seal between internal components\u003c\/li\u003e\n\u003cli data-section-id=\"1d66fqx\" data-start=\"2522\" data-end=\"2562\"\u003eMaintain proper operating air pressure\u003c\/li\u003e\n\u003cli data-section-id=\"1ibzgt1\" data-start=\"2563\" data-end=\"2605\"\u003ePrevent internal air leaks during firing\u003c\/li\u003e\n\u003cli data-section-id=\"1h563ll\" data-start=\"2606\" data-end=\"2638\"\u003eSupport smooth piston movement\u003c\/li\u003e\n\u003cli data-section-id=\"126izgb\" data-start=\"2639\" data-end=\"2684\"\u003eDeliver consistent nail-driving performance\u003c\/li\u003e\n\u003cli data-section-id=\"12g8y13\" data-start=\"2685\" data-end=\"2735\"\u003eRestore the tool's original pneumatic efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2737\" data-end=\"2867\"\u003eUsing a genuine OEM replacement seal sleeve helps ensure proper fit, dependable sealing, and long-term pneumatic tool performance.\u003c\/p\u003e\n\u003chr data-start=\"2869\" data-end=\"2872\"\u003e\n\u003ch2 data-section-id=\"1cnbljb\" data-start=\"2874\" data-end=\"2911\"\u003eCommon Signs Replacement Is Needed\u003c\/h2\u003e\n\u003cp data-start=\"2913\" data-end=\"2951\"\u003eReplace the seal sleeve if you notice:\u003c\/p\u003e\n\u003cul data-start=\"2953\" data-end=\"3143\"\u003e\n\u003cli data-section-id=\"pi8yjq\" data-start=\"2953\" data-end=\"2980\"\u003eAir leaking from the tool\u003c\/li\u003e\n\u003cli data-section-id=\"ha1zh6\" data-start=\"2981\" data-end=\"3004\"\u003eReduced driving power\u003c\/li\u003e\n\u003cli data-section-id=\"1riud2l\" data-start=\"3005\" data-end=\"3030\"\u003eNails not fully seating\u003c\/li\u003e\n\u003cli data-section-id=\"1uf64zu\" data-start=\"3031\" data-end=\"3064\"\u003eInconsistent firing performance\u003c\/li\u003e\n\u003cli data-section-id=\"15zo24m\" data-start=\"3065\" data-end=\"3098\"\u003eHardened, cracked, or worn seal\u003c\/li\u003e\n\u003cli data-section-id=\"16sat34\" data-start=\"3099\" data-end=\"3143\"\u003eExcessive air consumption during operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3145\" data-end=\"3287\"\u003eA worn or damaged sleeve seal can reduce pneumatic efficiency, resulting in poor firing performance and increased wear on internal components.\u003c\/p\u003e\n\u003chr data-start=\"3289\" data-end=\"3292\"\u003e\n\u003ch2 data-section-id=\"10va281\" data-start=\"3294\" data-end=\"3325\"\u003eInstallation \u0026amp; Service Notes\u003c\/h2\u003e\n\u003cp data-start=\"3327\" data-end=\"3399\"\u003eDisconnect the nailer from the air supply before performing any repairs.\u003c\/p\u003e\n\u003cp data-start=\"3401\" data-end=\"4067\"\u003eDisassemble the nailer according to the manufacturer's service instructions to access the cylinder assembly. Remove the existing \u003cstrong data-start=\"3530\" data-end=\"3552\"\u003e149840 Seal Sleeve\u003c\/strong\u003e and inspect the cylinder, piston, O-rings, and related sealing surfaces for wear or damage. Clean the cylinder thoroughly before installing the replacement seal. Apply a light coat of pneumatic tool oil if recommended by the manufacturer, then install the new seal sleeve without twisting or stretching it. Reassemble the tool and verify proper sealing and firing performance before returning it to service. Proper lubrication helps extend seal life and reduce premature wear. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4069\" data-end=\"4339\"\u003e\u003cstrong data-start=\"4069\" data-end=\"4083\"\u003eImportant:\u003c\/strong\u003e Always verify your tool model, type number, serial number (when applicable), and original part number before ordering. Use genuine OEM DeWalt \/ Bostitch replacement seals to ensure proper fit, reliable pneumatic performance, and long-term tool durability.\u003c\/p\u003e\n\u003chr data-start=\"4341\" data-end=\"4344\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4346\" data-end=\"4376\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4378\" data-end=\"4827\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1qi284m\" data-start=\"4378\" data-end=\"4458\"\u003eLubricate pneumatic nailers using the manufacturer's recommended air tool oil.\u003c\/li\u003e\n\u003cli data-section-id=\"arj8p9\" data-start=\"4459\" data-end=\"4514\"\u003eInspect internal seals whenever the tool is serviced.\u003c\/li\u003e\n\u003cli data-section-id=\"1rc2idk\" data-start=\"4515\" data-end=\"4566\"\u003eReplace worn seals promptly to prevent air leaks.\u003c\/li\u003e\n\u003cli data-section-id=\"1y6hzru\" data-start=\"4567\" data-end=\"4628\"\u003eKeep the compressed air supply clean and properly filtered.\u003c\/li\u003e\n\u003cli data-section-id=\"cig1mh\" data-start=\"4629\" data-end=\"4680\"\u003eDrain moisture from the air compressor regularly.\u003c\/li\u003e\n\u003cli data-section-id=\"51bv0z\" data-start=\"4681\" data-end=\"4827\" data-is-last-node=\"\"\u003eUse genuine OEM replacement parts to maintain factory sealing performance, consistent driving power, and long-term pneumatic nailer reliability.\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":"Bostitch","offers":[{"title":"Default Title","offer_id":53558851371371,"sku":"149840","price":4.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/GeneralSprayers_Logo_250x250_1_500a1eb8-8322-4778-a686-d97580312007.png?v=1784215220","url":"https:\/\/generalsprayers.com\/products\/dewalt-149840-seal-sleeve-genuine-oem-replacement-pneumatic-nailer-sleeve-seal","provider":"GeneralSprayers","version":"1.0","type":"link"}