{"product_id":"kti-lsv2-08-4co-directional-control-valve-4-way-2-position-spool-cartridge-power-up-circuit-for-double-acting-dump-trailer-hydraulic-pumps","title":"KTI LSV2-08-4CO Directional Control Valve — 4-Way 2-Position Spool Cartridge — Power-Up Circuit for Double-Acting Dump Trailer Hydraulic Pumps","description":"\u003ch2\u003eKTI LSV2-08-4CO Directional Control Valve — 4-Way 2-Position Spool Cartridge — for Double-Acting KTI Hydraulic Power Units\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLSV2-08-4CO\u003c\/strong\u003e is the directional control cartridge that handles the \u003cstrong\u003epower-up (extend)\u003c\/strong\u003e circuit on all KTI double-acting hydraulic power units. It's a \u003cstrong\u003e4-way, 2-position spool-type solenoid valve\u003c\/strong\u003e — shifting the oil flow path between \"rest\" and \"extend\" states when the round coil is energized. Typically used with the \u003cstrong\u003eLC2-08-C-5B cylindrical\/round coil\u003c\/strong\u003e on the up circuit.\u003c\/p\u003e\n\n\u003cp\u003eFailed LSV2 symptoms include: \u003cstrong\u003epump runs but cylinder won't extend\u003c\/strong\u003e, weak\/slow up-stroke, erratic cylinder motion under load, or internal bypass heat buildup. When combined with a leaky LSPC load-holding valve (the common second failure), you'll see both bed drift and slow extend — call out for a full rebuild pair.\u003c\/p\u003e\n\n\u003ch3\u003e🔧 How It Works\u003c\/h3\u003e\n\u003cp\u003eThe LSV2-08-4CO uses a shifting spool with two operating positions:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDe-energized (normal\/rest):\u003c\/strong\u003e Oil flows freely from port 3 → port 2 (or 2 → 3) and port 4 → port 1 (or 1 → 4). Cylinder is isolated, fluid circulates at low pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnergized (extend):\u003c\/strong\u003e The spool shifts — oil now flows from port 3 → 4 and 2 → 1. This directs pressurized fluid into the cylinder bore, extending the rod and lifting the bed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWorks in tandem with the LSPC-080-4-00 load-holding valve — the two valves together define the behavior of every double-acting KTI pump circuit.\u003c\/p\u003e\n\n\u003ch3\u003e📐 Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number (KTI)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLSV2-08-4CO\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Way, 2-Position (4W2P) spool cartridge solenoid valve\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirectional control — power up (extend) on double-acting circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCavity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSAE #8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Coil\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLC2-08-C-5B (round \/ cylindrical coil, typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Socket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\/8\" deep socket\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 ft-lb maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble-acting (power up \/ power down) — does NOT fit power-up \/ gravity-down pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePairing Valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLSPC-080-4-00 load holding valve (down circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKTI Hydraulics (OEM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e⚠️ Application Note\u003c\/h3\u003e\n\u003cp\u003ePer KTI documentation: this valve is used on the \u003cstrong\u003eUP circuit of double-acting pumps only\u003c\/strong\u003e. \u003cstrong\u003eIt will NOT fit KTI power-up \/ gravity-down pumps\u003c\/strong\u003e. If you're unsure which system you have, call us at \u003cstrong\u003e517-225-1991\u003c\/strong\u003e to confirm before ordering.\u003c\/p\u003e\n\n\u003ch3\u003e✅ Compatible Hydraulic Power Units\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKTI DC26-S\u003c\/strong\u003e and all standard KTI double-acting hydraulic power units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKTI DC-4000 series\u003c\/strong\u003e dump trailer pumps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC-45597, DC-45598\u003c\/strong\u003e variants\u003c\/li\u003e\n  \u003cli\u003eAny double-acting KTI pump using SAE #8 cavity directional valves\u003c\/li\u003e\n  \u003cli\u003eDump trailers from Load Trail, Big Tex, PJ Trailer, Griffin, Diamond C, Cargo Mate, and most major brands using KTI double-acting pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🔁 Cross-References\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKTI OEM:\u003c\/strong\u003e LSV2-08-4CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirectional spool valve\u003c\/strong\u003e on KTI double-acting power units\u003c\/li\u003e\n  \u003cli\u003eCompanion valve to \u003cstrong\u003eLSPC-080-4-00\u003c\/strong\u003e (load holding) — the two work together\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible coil:\u003c\/strong\u003e LC2-08-C-5B (round)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🔧 Rebuild Pair Recommendation\u003c\/h3\u003e\n\u003cp\u003eIf your LSV2 has failed, there's a good chance the LSPC on the same manifold has wear too — they typically see the same hours and same oil contamination. Many service techs replace both at the same time as a \u003cstrong\u003erebuild pair\u003c\/strong\u003e, saving a second teardown later. Ask us about rebuild bundles at \u003cstrong\u003e517-225-1991\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003e💡 Pro Tips — Installation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInspect the manifold cavity\u003c\/strong\u003e for burrs or metal shavings before installing the new cartridge. Contamination is the #1 cause of valve failure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLubricate all O-rings and back-up rings\u003c\/strong\u003e with clean hydraulic fluid before seating the valve. A dry O-ring will shear during install.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand-tighten first,\u003c\/strong\u003e then torque with a \u003cstrong\u003e7\/8\" deep socket\u003c\/strong\u003e to \u003cstrong\u003e18 ft-lb maximum\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo not use a standard socket\u003c\/strong\u003e — use a deep socket to fully engage the cartridge body hex flats without slipping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAfter install,\u003c\/strong\u003e cycle the system multiple times without load to verify smooth shifting and confirm no bypass leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e❓ FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMy pump runs but the bed won't extend — is this the part?\u003c\/strong\u003e\u003cbr\u003e\nVery likely. When a directional (LSV2) fails internally, the pump still runs and builds pressure, but the oil can't reach the cylinder bore. Classic symptom.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShould I replace this or the LSPC first?\u003c\/strong\u003e\u003cbr\u003e\nDiagnose the symptom: bed won't GO UP → LSV2 is primary suspect. Bed DRIFTS DOWN → LSPC is primary suspect. Both failing at once is common if the oil was contaminated.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need a new coil?\u003c\/strong\u003e\u003cbr\u003e\nUsually no. If the old round coil (LC2-08-C-5B) still energizes when powered, reuse it. Replace only if visibly damaged, melted, or showing an open circuit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill this fit my power-up \/ gravity-down pump?\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eNo.\u003c\/strong\u003e This valve is double-acting only. Call \u003cstrong\u003e517-225-1991\u003c\/strong\u003e to identify your pump model before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestions?\u003c\/strong\u003e Call or text AAA Trailer at \u003cstrong\u003e517-225-1991\u003c\/strong\u003e — we stock the full KTI hydraulic line and can help you identify the right replacement part. Same-day shipping from Howell, Michigan.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📞 Call\/Text: 517-225-1991   🌐 AAATrailer.com\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch3\u003eRelated KTI Hydraulic Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aaatrailer.com\/products\/kti-lspc-080-4-00-load-holding-valve-nc-2-way-p-o-c-4-way-cartridge-double-acting-dump-trailer-hydraulic-pumps\"\u003eKTI LSPC-080-4-00 Load Holding Valve (down-circuit pair)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aaatrailer.com\/products\/kti-lspc-080-4-00-m-load-holding-valve-with-manual-override-emergency-bed-down-release-for-dead-battery-conditions-double-acting-dump-trailer-pumps\"\u003eKTI LSPC-080-4-00-M Load Holding Valve with Manual Override\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aaatrailer.com\/products\/products-kti-lc2-08-c-5b-10v-dc-hydraulic-solenoid-coil\"\u003eKTI LC2-08-C-5B Round Coil Actuator\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KTI","offers":[{"title":"Default Title","offer_id":52766510252341,"sku":"LSV2-08-4CO","price":69.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/kti-lsv2-08-4co-directional-control-valve-4-way-2-posit-sq.jpg?v=1782503807","url":"https:\/\/aaatrailer.com\/products\/kti-lsv2-08-4co-directional-control-valve-4-way-2-position-spool-cartridge-power-up-circuit-for-double-acting-dump-trailer-hydraulic-pumps","provider":"AAA Trailer","version":"1.0","type":"link"}