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Return oil pipe check valve 804041354 XCMG XC968-EV_968 Wheel loader

Return oil pipe check valve 804041354 XCMG XC968-EV_968 Wheel loader

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XCMG 804041354 – Return Oil Pipe Check Valve (Hydraulic Return Check Valve Assembly) for XC968‑EV Electric Wheel Loader

The XCMG 804041354 is a genuine return oil pipe check valve (also known as a hydraulic return check valve or return circuit one‑way valve) specifically designed for the hydraulic return circuit of the XCMG XC968‑EV pure electric wheel loader. This precision‑engineered component allows hydraulic fluid to flow freely in the direction of the return line (toward the reservoir) while completely blocking reverse flow, thereby preventing back‑pressure buildup that could damage hydraulic pumps, filters, and actuators. The valve is typically integrated into the return steel pipe assembly, where it works in conjunction with O‑rings, connectors, and fasteners to create a leak‑proof, durable interface. Manufactured from high‑strength steel with a hardened poppet or ball‑type sealing element, the 804041354 maintains consistent cracking pressure, delivers low pressure drop, and withstands the vibration, temperature swings, and contamination levels typical of heavy‑duty electric loader operation in construction, quarrying, and industrial materials handling.

CategoryPart NumberDescription / Original Number
Main Component804041354Return oil pipe check valve
Check Valve (Cartridge Type)803173610Check valve cartridge (for manifold/block mounting)
Check Valve (General)803438319Genuine XCMG check valve (alternative for pilot / auxiliary circuits)
Return Steel Pipe Assembly316100421Oil return steel pipe assembly (primary structural return line)
Steel Pipe (Return Section)316004044Steel pipe – return line section
Steel Pipe (Inlet Section)316004040Hydraulic steel pipe (supply)
Steel Pipe (Outlet Section)316004041Hydraulic steel pipe (return)
O‑ring (61.5×3.55‑S)801138351Large O‑ring for flange sealing
O‑ring (71×3.55‑S)801138355Large O‑ring for manifold sealing
O‑ring (General Purpose)803164037O‑ring for fittings (various sizes)
Connector (Straight)803172798Straight hydraulic connector
Connector (Elbow)80310491590° elbow connector
Connector (Hydraulic)803173684Hydraulic connector (additional port)
Connector (Fitting)803100723Hydraulic fitting / adapter
Thickened Flat Washer (Load‑Distributing)329900303Heavy‑duty flat washer for bolt load distribution
Screw M12×35805139870Hex bolt – length 35 mm (grade 10.9)
Screw M12×45805139879Hex bolt – length 45 mm (grade 10.9)
Plug (Port / Test Port)803103961Threaded plug for unused ports
Hydraulic Tank (Reservoir)803200100Main hydraulic oil reservoir
Return Filter Assembly (Spin‑on)803100039Return line filter assembly
Return Filter Element (10 micron)803100041Replacement filter element
Suction Strainer (In‑tank)803100040Suction strainer (inside hydraulic tank)
Bypass Valve (Oil‑Bulk & Oil‑Return Assembly)316102123Oil‑bulk and oil‑return bypass valve assembly
Bypass Valve Pipeline Assembly804041355Bypass valve pipeline (associated with return circuit)
Main Control Valve (Distributor)803104500Pilot‑operated main hydraulic valve assembly
Pilot Control Valve (Joystick Base)860633853Proportional pilot valve (under cab)
Joystick Handle (Pilot Control)860633850Electro‑hydraulic joystick with thumb rollers
Pilot Filter (Return)803100042Pilot circuit return filter
Pilot Accumulator803089849Emergency pilot pressure accumulator
Hydraulic Oil Cooler803107100Oil cooler assembly (air cooled)
Cooler Bypass Valve803107101Thermal bypass valve (cold start bypass)
Boom Lift Cylinder (Left)803081218Left boom cylinder
Boom Lift Cylinder (Right)803081219Right boom cylinder
Bucket Tilt Cylinder803081220Bucket cylinder
Cylinder Seal Kit (Boom)803081218SKRepair seal kit for boom cylinder
Cylinder Seal Kit (Bucket)803081220SKRepair seal kit for bucket cylinder
Steering Cylinder (Left)803081210Left steering cylinder
Steering Cylinder (Right)803081211Right steering cylinder
Steering Gear (Orbital Unit)803089848Full‑hydraulic steering control unit
Steering Priority Valve803104200Flow divider (steering priority)
Main Hydraulic Pump (Piston – Diesel counterpart)803009979Main piston pump (reference – EV uses electric‑driven hydraulic motor)
Hydraulic Motor (Electric Loader – Pump Drive)70 kW hydraulic motor (XC968‑EV traction/hydraulic system)
High‑Pressure Hose (Pump to Valve)860115389Flexible pressure hose
Low‑Pressure Hose (Return)860115388Low‑pressure return hose
Banjo Bolt860167280Hollow bolt for banjo connection
Copper Washer (Banjo Seal – Pack of 10)803164120Sealing washer for banjo bolts
Brake Master Cylinder860167266Brake master cylinder assembly
Brake Booster (Air / Hydraulic)860167268Air‑over‑hydraulic brake booster
Brake Accumulator803089849Emergency brake hydraulic accumulator
Brake Caliper (Front Left)860167252Front left brake caliper
Brake Caliper (Front Right)860167253Front right brake caliper
Brake Caliper (Rear Left)860167254Rear left brake caliper
Brake Caliper (Rear Right)860167255Rear right brake caliper
Brake Pad Set (Front)860167256Friction pad set – front axle
Brake Pad Set (Rear)860167257Friction pad set – rear axle
Brake Disc (Rotor – Front)860167259Ventilated brake disc – front
Brake Disc (Rotor – Rear)860167260Ventilated brake disc – rear
Brake Caliper Seal Kit860167251Brake caliper repair seal kit
Brake Hose (Flexible – Front)860115388Flexible brake hose (front axle)
Brake Hose (Flexible – Rear)860115389Flexible brake hose (rear axle)
Brake Fluid (DOT 4 – 1L / 5L)860115450Genuine XCMG brake fluid
Parking Brake Caliper860167272Spring‑applied parking brake (transmission output)
Parking Brake Switch (Cab)803604013Dash parking brake warning switch
Front Axle Assembly (Complete)250300731Front drive axle (XC968‑EV)
Rear Axle Assembly (Complete)250300732Rear drive axle
Front Axle Input Flange (Pinion Yoke)251900342Pinion flange (drive shaft to axle connection)
Axle Pinion Oil Seal (Double‑Lip)860106167Pinion seal
Axle Shaft (Left Front)251500307Left front axle shaft
Axle Shaft (Right Front)251500308Right front axle shaft
Axle Shaft (Left Rear)251500309Left rear axle shaft
Axle Shaft (Right Rear)251500310Right rear axle shaft
Differential Assembly (Front)275102500Front differential carrier assembly
Differential Assembly (Rear)275102501Rear differential carrier
Half Shaft Gear (Differential Side Gear)275102466Differential side gear
Sun Gear (Planetary Final Drive)275100138Sun gear shaft
Planet Gear (Planetary Final Drive – Set of 3)250200646Planet gear
Wheel Hub (Front)252000421Front wheel hub assembly
Wheel Hub (Rear)252000422Rear wheel hub assembly
Wheel Hub Tapered Roller Bearing (Inner)271400216Inner wheel bearing
Wheel Hub Tapered Roller Bearing (Outer)271400218Outer wheel bearing
Wheel Hub Oil Seal (Inner)272200085Wheel hub seal (keeps gear oil in hub)
Wheel Flange251900342Wheel mounting flange (bolted to hub)
Wheel Stud Bolt279500128M22×1.5 wheel stud (set of 10)
Wheel Nut (Conical Seat)250200664Hex wheel nut for wheel studs
Traction Motor (Drive – Left / Right)100 kW × 2 dual travel motors (XC968‑EV)
Hydraulic Pump Drive Motor (Electric)70 kW hydraulic motor (powers main hydraulic system)
Battery Pack (LiFePO₄)282 – 400 kWh (voltages vary – XC968‑EV)
Battery Cooling System (Liquid)Distributed liquid cooling for battery pack
Charge Port (Dual – Fast Charge)Dual‑port fast charge system
High‑Voltage Cabling (Battery to Motors)HV shielded cables (orange)
Low‑Voltage Harness (Control / Sensing)12V / 24V control harness
Alternator (24V / 120A – if equipped)Brushless alternator
Battery (12V – for 24V control system)Auxiliary / starter battery
Fuse Kit (5A – 30A – Assorted Blade Fuses)803682279 – 803682283Blade fuses (5A, 10A, 15A, 20A, 30A)
Relay (General Purpose – 24V, 4‑pin / 5‑pin)803604013ISO mini relay
Control Button (Horn / Vibration / Dashboard)803604621Dash push button
Harness Connector (Deutsch – Receptacle / Pin)803399778Electrical connector (Deutsch DT series)
Coolant Temperature Sensor (Hydraulic Oil / Motor)WDG1371Temperature sender
Dashboard Display / Instrument Cluster803604622LCD / touchscreen display (voltage, temp, SOC, power)
LED Work Light (Left – Front)860134405Left front LED work light
LED Work Light (Right – Front)860134406Right front LED work light
Headlight Cover (Left – Lens / Housing Cover)252911337Left headlight cover
Headlight Cover (Right)252911338Right headlight cover
Electric Horn (High Tone)803688413Warning horn – high frequency
Electric Horn (Low Tone)803688414Warning horn – low frequency
Horn Relay803604013Relay for horn circuit
Reverse Alarm (Backup Buzzer – 107 dB)803688433Audible reverse alarm
Grease Fitting (Straight – Lubrication Nipple, M10×1)803164200Standard grease nipple
Grease Fitting (90° – Angled, M10×1)80316420190° angled grease nipple
Grease Fitting Cap (Rubber Dust Cover)803164202Protective cap for grease nipple
Composite Gasket (Q/SC1294‑2000 Hard Gasket)803164100Hard composite gasket
O‑ring (24.99×3.53 – 214N552‑90)803401122Standard O‑ring for port fittings
O‑ring (37.69×3.53 – 222N552‑90)803401130Standard O‑ring for larger ports
O‑ring (56.74×3.53 – 228N552‑90)803401136Standard O‑ring for flange fittings
O‑ring (75.79×3.53 – 234N552‑90)803401142Standard O‑ring for manifold mounting
O‑ring (94.84×3.53 – 240N552‑90)803401148Standard O‑ring for large flanges
O‑ring (120.24×3.53 – 248N552‑90)803401156Large O‑ring for case housing
O‑ring (164.69×3.53 – 260N552‑90)803401168Extra‑large O‑ring for tank access covers
O‑ring (26×2.0 – 573N552‑90)803401366Small O‑ring for pilot lines
Hydraulic Oil (ISO VG 46 – 20L / 200L)860115450Genuine XCMG hydraulic oil
Axle Gear Oil (GL‑5 85W‑140 – 20L)860115453Genuine XCMG axle gear oil
NLGI #2 Lithium Grease (400g Cartridge)860115451General purpose grease (pins, U‑joints, bearings)
Threadlocker (Medium Strength – Loctite 243 / Equivalent)For fasteners and mounting bolts
Anti‑Seize Compound (High Temperature)For pipe threads and splines
Gasket Sealant (Anaerobic Flange Sealant)860115452For flange sealing during assembly
Hydraulic Pressure Test Kit (Gauge + Hose + Fittings)For diagnostic pressure checks
Torque Wrench (0 – 300 Nm Range)For fastener tightening
Service Manual (XC968‑EV – Hydraulic System Section)Refer to XCMG workshop manual
Parts Catalog (Electric Loader – Illustrated)For exploded view and parts identification


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Product Detail

XCMG 804041354 – Return Oil Pipe Check Valve (Hydraulic Return Check Valve Assembly) for XC968‑EV Electric Wheel Loader

The XCMG 804041354 is a genuine return oil pipe check valve (also known as a hydraulic return check valve or return circuit one‑way valve) specifically designed for the hydraulic return circuit of the XCMG XC968‑EV pure electric wheel loader. This precision‑engineered component allows hydraulic fluid to flow freely in the direction of the return line (toward the reservoir) while completely blocking reverse flow, thereby preventing back‑pressure buildup that could damage hydraulic pumps, filters, and actuators. The valve is typically integrated into the return steel pipe assembly, where it works in conjunction with O‑rings, connectors, and fasteners to create a leak‑proof, durable interface. Manufactured from high‑strength steel with a hardened poppet or ball‑type sealing element, the 804041354 maintains consistent cracking pressure, delivers low pressure drop, and withstands the vibration, temperature swings, and contamination levels typical of heavy‑duty electric loader operation in construction, quarrying, and industrial materials handling.

CategoryPart NumberDescription / Original Number
Main Component804041354Return oil pipe check valve
Check Valve (Cartridge Type)803173610Check valve cartridge (for manifold/block mounting)
Check Valve (General)803438319Genuine XCMG check valve (alternative for pilot / auxiliary circuits)
Return Steel Pipe Assembly316100421Oil return steel pipe assembly (primary structural return line)
Steel Pipe (Return Section)316004044Steel pipe – return line section
Steel Pipe (Inlet Section)316004040Hydraulic steel pipe (supply)
Steel Pipe (Outlet Section)316004041Hydraulic steel pipe (return)
O‑ring (61.5×3.55‑S)801138351Large O‑ring for flange sealing
O‑ring (71×3.55‑S)801138355Large O‑ring for manifold sealing
O‑ring (General Purpose)803164037O‑ring for fittings (various sizes)
Connector (Straight)803172798Straight hydraulic connector
Connector (Elbow)80310491590° elbow connector
Connector (Hydraulic)803173684Hydraulic connector (additional port)
Connector (Fitting)803100723Hydraulic fitting / adapter
Thickened Flat Washer (Load‑Distributing)329900303Heavy‑duty flat washer for bolt load distribution
Screw M12×35805139870Hex bolt – length 35 mm (grade 10.9)
Screw M12×45805139879Hex bolt – length 45 mm (grade 10.9)
Plug (Port / Test Port)803103961Threaded plug for unused ports
Hydraulic Tank (Reservoir)803200100Main hydraulic oil reservoir
Return Filter Assembly (Spin‑on)803100039Return line filter assembly
Return Filter Element (10 micron)803100041Replacement filter element
Suction Strainer (In‑tank)803100040Suction strainer (inside hydraulic tank)
Bypass Valve (Oil‑Bulk & Oil‑Return Assembly)316102123Oil‑bulk and oil‑return bypass valve assembly
Bypass Valve Pipeline Assembly804041355Bypass valve pipeline (associated with return circuit)
Main Control Valve (Distributor)803104500Pilot‑operated main hydraulic valve assembly
Pilot Control Valve (Joystick Base)860633853Proportional pilot valve (under cab)
Joystick Handle (Pilot Control)860633850Electro‑hydraulic joystick with thumb rollers
Pilot Filter (Return)803100042Pilot circuit return filter
Pilot Accumulator803089849Emergency pilot pressure accumulator
Hydraulic Oil Cooler803107100Oil cooler assembly (air cooled)
Cooler Bypass Valve803107101Thermal bypass valve (cold start bypass)
Boom Lift Cylinder (Left)803081218Left boom cylinder
Boom Lift Cylinder (Right)803081219Right boom cylinder
Bucket Tilt Cylinder803081220Bucket cylinder
Cylinder Seal Kit (Boom)803081218SKRepair seal kit for boom cylinder
Cylinder Seal Kit (Bucket)803081220SKRepair seal kit for bucket cylinder
Steering Cylinder (Left)803081210Left steering cylinder
Steering Cylinder (Right)803081211Right steering cylinder
Steering Gear (Orbital Unit)803089848Full‑hydraulic steering control unit
Steering Priority Valve803104200Flow divider (steering priority)
Main Hydraulic Pump (Piston – Diesel counterpart)803009979Main piston pump (reference – EV uses electric‑driven hydraulic motor)
Hydraulic Motor (Electric Loader – Pump Drive)70 kW hydraulic motor (XC968‑EV traction/hydraulic system)
High‑Pressure Hose (Pump to Valve)860115389Flexible pressure hose
Low‑Pressure Hose (Return)860115388Low‑pressure return hose
Banjo Bolt860167280Hollow bolt for banjo connection
Copper Washer (Banjo Seal – Pack of 10)803164120Sealing washer for banjo bolts
Brake Master Cylinder860167266Brake master cylinder assembly
Brake Booster (Air / Hydraulic)860167268Air‑over‑hydraulic brake booster
Brake Accumulator803089849Emergency brake hydraulic accumulator
Brake Caliper (Front Left)860167252Front left brake caliper
Brake Caliper (Front Right)860167253Front right brake caliper
Brake Caliper (Rear Left)860167254Rear left brake caliper
Brake Caliper (Rear Right)860167255Rear right brake caliper
Brake Pad Set (Front)860167256Friction pad set – front axle
Brake Pad Set (Rear)860167257Friction pad set – rear axle
Brake Disc (Rotor – Front)860167259Ventilated brake disc – front
Brake Disc (Rotor – Rear)860167260Ventilated brake disc – rear
Brake Caliper Seal Kit860167251Brake caliper repair seal kit
Brake Hose (Flexible – Front)860115388Flexible brake hose (front axle)
Brake Hose (Flexible – Rear)860115389Flexible brake hose (rear axle)
Brake Fluid (DOT 4 – 1L / 5L)860115450Genuine XCMG brake fluid
Parking Brake Caliper860167272Spring‑applied parking brake (transmission output)
Parking Brake Switch (Cab)803604013Dash parking brake warning switch
Front Axle Assembly (Complete)250300731Front drive axle (XC968‑EV)
Rear Axle Assembly (Complete)250300732Rear drive axle
Front Axle Input Flange (Pinion Yoke)251900342Pinion flange (drive shaft to axle connection)
Axle Pinion Oil Seal (Double‑Lip)860106167Pinion seal
Axle Shaft (Left Front)251500307Left front axle shaft
Axle Shaft (Right Front)251500308Right front axle shaft
Axle Shaft (Left Rear)251500309Left rear axle shaft
Axle Shaft (Right Rear)251500310Right rear axle shaft
Differential Assembly (Front)275102500Front differential carrier assembly
Differential Assembly (Rear)275102501Rear differential carrier
Half Shaft Gear (Differential Side Gear)275102466Differential side gear
Sun Gear (Planetary Final Drive)275100138Sun gear shaft
Planet Gear (Planetary Final Drive – Set of 3)250200646Planet gear
Wheel Hub (Front)252000421Front wheel hub assembly
Wheel Hub (Rear)252000422Rear wheel hub assembly
Wheel Hub Tapered Roller Bearing (Inner)271400216Inner wheel bearing
Wheel Hub Tapered Roller Bearing (Outer)271400218Outer wheel bearing
Wheel Hub Oil Seal (Inner)272200085Wheel hub seal (keeps gear oil in hub)
Wheel Flange251900342Wheel mounting flange (bolted to hub)
Wheel Stud Bolt279500128M22×1.5 wheel stud (set of 10)
Wheel Nut (Conical Seat)250200664Hex wheel nut for wheel studs
Traction Motor (Drive – Left / Right)100 kW × 2 dual travel motors (XC968‑EV)
Hydraulic Pump Drive Motor (Electric)70 kW hydraulic motor (powers main hydraulic system)
Battery Pack (LiFePO₄)282 – 400 kWh (voltages vary – XC968‑EV)
Battery Cooling System (Liquid)Distributed liquid cooling for battery pack
Charge Port (Dual – Fast Charge)Dual‑port fast charge system
High‑Voltage Cabling (Battery to Motors)HV shielded cables (orange)
Low‑Voltage Harness (Control / Sensing)12V / 24V control harness
Alternator (24V / 120A – if equipped)Brushless alternator
Battery (12V – for 24V control system)Auxiliary / starter battery
Fuse Kit (5A – 30A – Assorted Blade Fuses)803682279 – 803682283Blade fuses (5A, 10A, 15A, 20A, 30A)
Relay (General Purpose – 24V, 4‑pin / 5‑pin)803604013ISO mini relay
Control Button (Horn / Vibration / Dashboard)803604621Dash push button
Harness Connector (Deutsch – Receptacle / Pin)803399778Electrical connector (Deutsch DT series)
Coolant Temperature Sensor (Hydraulic Oil / Motor)WDG1371Temperature sender
Dashboard Display / Instrument Cluster803604622LCD / touchscreen display (voltage, temp, SOC, power)
LED Work Light (Left – Front)860134405Left front LED work light
LED Work Light (Right – Front)860134406Right front LED work light
Headlight Cover (Left – Lens / Housing Cover)252911337Left headlight cover
Headlight Cover (Right)252911338Right headlight cover
Electric Horn (High Tone)803688413Warning horn – high frequency
Electric Horn (Low Tone)803688414Warning horn – low frequency
Horn Relay803604013Relay for horn circuit
Reverse Alarm (Backup Buzzer – 107 dB)803688433Audible reverse alarm
Grease Fitting (Straight – Lubrication Nipple, M10×1)803164200Standard grease nipple
Grease Fitting (90° – Angled, M10×1)80316420190° angled grease nipple
Grease Fitting Cap (Rubber Dust Cover)803164202Protective cap for grease nipple
Composite Gasket (Q/SC1294‑2000 Hard Gasket)803164100Hard composite gasket
O‑ring (24.99×3.53 – 214N552‑90)803401122Standard O‑ring for port fittings
O‑ring (37.69×3.53 – 222N552‑90)803401130Standard O‑ring for larger ports
O‑ring (56.74×3.53 – 228N552‑90)803401136Standard O‑ring for flange fittings
O‑ring (75.79×3.53 – 234N552‑90)803401142Standard O‑ring for manifold mounting
O‑ring (94.84×3.53 – 240N552‑90)803401148Standard O‑ring for large flanges
O‑ring (120.24×3.53 – 248N552‑90)803401156Large O‑ring for case housing
O‑ring (164.69×3.53 – 260N552‑90)803401168Extra‑large O‑ring for tank access covers
O‑ring (26×2.0 – 573N552‑90)803401366Small O‑ring for pilot lines
Hydraulic Oil (ISO VG 46 – 20L / 200L)860115450Genuine XCMG hydraulic oil
Axle Gear Oil (GL‑5 85W‑140 – 20L)860115453Genuine XCMG axle gear oil
NLGI #2 Lithium Grease (400g Cartridge)860115451General purpose grease (pins, U‑joints, bearings)
Threadlocker (Medium Strength – Loctite 243 / Equivalent)For fasteners and mounting bolts
Anti‑Seize Compound (High Temperature)For pipe threads and splines
Gasket Sealant (Anaerobic Flange Sealant)860115452For flange sealing during assembly
Hydraulic Pressure Test Kit (Gauge + Hose + Fittings)For diagnostic pressure checks
Torque Wrench (0 – 300 Nm Range)For fastener tightening
Service Manual (XC968‑EV – Hydraulic System Section)Refer to XCMG workshop manual
Parts Catalog (Electric Loader – Illustrated)For exploded view and parts identification


Return oil pipe check valve 804041354 XCMG XC968-EV_968 Wheel loader
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Street, Huangdao District, Qingdao, Qingdao Area, China (Shandong) Pilot Free Trade Zone

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