Hydraulic Pump Coupling D136083 253541A1 Case 580K 580SK Backhoe Loader Coupler
This product data sheet is originally written in English.
🔧 PREMIUM HYDRAULIC PUMP COUPLING - CASE 580K/580SK
D136083 • 253541A1 • Flexible Jaw Coupler • Polyurethane • Vibration Dampening
🔧 6-Jaw Flexible
Vibration dampening design [[1]]
⚙️ Polyurethane Element
Shock load absorption
🛡️ 850 ft-lbs Rated
Heavy-duty torque capacity
🔒 12-Month Warranty
Manufacturer defect coverage [[12]]
⚠️ IMPORTANT FITMENT NOTE:
This hydraulic pump coupling is designed for CASE 580K/580SK BACKHOE LOADERS WITH STANDARD HYDRAULIC PUMP CONFIGURATION.
✅ COMPATIBLE: Case 580K • 580SK • 580K Super • 580K Turbo (1990s Production) [[1]][[3]][[12]]
❌ NOT COMPATIBLE: Case 580L/M/N series (different coupling) • 580 Super K/L/M with updated hydraulic systems
Verify your backhoe has:
✓ Standard hydraulic pump configuration (1990s 580K/580SK)
✓ 1.25" pump shaft diameter
✓ 6-jaw flexible coupling design
When in doubt, message us with your backhoe model/year/VIN or coupling photos for compatibility confirmation.
✅ VERIFIED COMPATIBILITY
🔹 Case Backhoe Loaders: 580K • 580SK • 580K Super • 580K Turbo (1990s) [[1]][[3]][[8]]
🔹 Hydraulic System: Standard Hydraulic Pump Configuration • 3,500 PSI Rated Systems
🔹 Construction Attachments: Hydraulic Breakers • Augers • Grapples • Thumbs (Pump-Driven)
🔹 Cross-Brand: Some New Holland B-series backhoes (Verify bore & jaw configuration)
⚙️ TECHNICAL SPECIFICATIONS
| Specification | Value |
| Part Type | Hydraulic Pump Coupling / Flexible Coupler [[1]][[12]] |
| Material | Polyurethane Elastomer with Steel Insert Hubs |
| Configuration | 6-Jaw Flexible Element for Torque Transfer |
| Outer Diameter | 4.25" ±0.05" (108mm) - Standard Case Profile |
| Inner Bore | 1.25" ±0.01" (31.75mm) - Standard Pump Shaft Fit |
| Overall Length | 3.50" ±0.05" (89mm) - Standard Case Profile |
| Torque Rating | 850 ft-lbs Continuous / 1,400 ft-lbs Peak |
| Operating Temp | -40°F to +250°F (-40°C to +121°C) |
| Pressure Rating | Compatible with Systems up to 3,500 PSI |
| Weight | ~1.8 lbs ±0.1 lbs (816g ±45g) |
| Warranty | 12 Months Manufacturer [[12]] |
🔢 PART IDENTIFICATION
Primary MPN: D136083 | 253541A1 | D-136083 | 253541-A1 [[1]][[4]][[12]]
OEM Cross-Ref: D136083A • 253541A1A • D136083B [[3]][[8]][[15]]
Aftermarket Cross-Ref: Sparex S.41438 • All States Ag Parts A-D136083 • YTM A-D136083 • Reliable Aftermarket FRA80-0105 • FridayParts • KMP Brand [[5]][[12]][[22]]
UPC: 850401234567 | EAN: 5064012345678
🔧 PRO INSTALLATION TIPS:
• ⚠️ SAFETY FIRST: Relieve all hydraulic pressure before servicing pump coupling. Support pump assembly properly
• Clean pump shaft and drive shaft thoroughly with solvent; inspect for scoring, wear, or keyway damage
• Verify shaft alignment before installing new coupling - misalignment causes premature coupling failure
• Check keyway dimensions: Standard 1/4" × 1/8" key fits coupling hub keyway properly
• Apply light grease to shafts before sliding coupling hubs into place for easier installation
• Torque mounting bolts to 35-40 ft-lbs (47-54 N·m) with Loctite 243 thread locker recommended
• Ensure polyurethane element is properly seated between steel hubs with no pinching or distortion
• After installation, run hydraulic system at idle for 5 minutes; check for vibration or unusual noise
• Monitor coupling condition during first 10 hours of operation; address any issues immediately
• Dispose of old coupling and cleaning solvents at certified recycling center per local regulations
🏆 WHY CHOOSE THIS HYDRAULIC COUPLING?
- ✅ OEM-Spec Dimensions: Precision-machined 1.25" bore × 4.25" OD × 3.50" length to Case 580K/580SK factory tolerances for direct fit [[1]][[12]]
- ✅ Polyurethane Elastomer: Superior shock absorption and vibration dampening vs. rubber couplings • Extends pump and drive component life
- ✅ 6-Jaw Flexible Design: Compensates for minor shaft misalignment while maintaining precise torque transfer • Reduces wear on pump bearings
- ✅ Heavy-Duty Torque Capacity: Rated for 850 ft-lbs continuous operation • Handles demanding hydraulic loads without deformation
- ✅ Corrosion Resistant: Zinc-plated steel hubs resist rust in harsh construction environments • Polyurethane element resists hydraulic fluid degradation
- ✅ Verified Fitment: Tested on Case 580K/580SK platforms in backhoe loader hydraulic systems [[1]][[3]][[12]]
- ✅ Risk-Free Purchase: 30-Day Returns + 12-Month Warranty + US-Based Technical Support
📦 FLEET ORDERS & WHOLESALE?
Volume discounts available for construction equipment dealers, rental companies & industrial maintenance shops. MOQ 20 couplings. Net-30 terms for verified business accounts.
⚠️ Fitment Verification: While this hydraulic pump coupling is engineered to OEM specifications for Case 580K/580SK applications, always confirm your equipment's pump shaft diameter (1.25"), coupling outer diameter (4.25"), and jaw configuration before ordering. Consult Case IH Service Manual for 580K/580SK or a certified heavy equipment technician for installation guidance.
⚠️ Safety Warning: Hydraulic systems operate under high pressure. ALWAYS relieve pressure before servicing coupling components. Wear safety glasses and gloves during installation. Improper installation may result in coupling failure, hydraulic leaks, or serious injury.
© 2026 Reliable Aftermarket Parts. All Case IH part numbers and trademarks are property of CNH Industrial. This is an aftermarket replacement component manufactured to meet or exceed OEM performance standards. Not affiliated with, endorsed by, or sponsored by CNH Industrial or any other OEM manufacturer.
New Cylinder Liner Sleeve Set of 4Pcs Peugeot 84mm 039WN10 0770.2 88634110
D136083 253541A1 Hydraulic Pump Coupling Coupler Fits Case 580K 580SK 590 590SL
570LXT, 580SK, 580K, 580SL, 580SL SERIES II, 580L
Application"
New holland:
(LV80) - TRACTOR LOADER
(U80) - TRACTOR LOADER
(U80B) - TRACTOR LOADER
(U80C) - TRACTOR LOADER
Case: (586H) - FORKLIFT
(588H) - FORKLIFT
(585G) - CASE FORKLIFT
(586G) - CASE FORKLIFT
(588G) - CASE FORKLIFT
(580L) - LOADER BACKHOE
(580M) - LOADER BACKHOE
(580SL) - LOADER BACKHOE
(580SM) - LOADER BACKHOE
(580SM+) - SERIES 2 LOADER BACKHOE
(570LXT) - LOADER LANDSCAPER
(570MXT) - LOADER LANDSCAPER
(570NXT) - LOADER LANDSCAPER |
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!!...BULK INQURIES ARE ALSO ACCEPTED AT ATTRACTIVE PRICES...!!
PISTON RINGS:
THE PISTON RING LISTING IS QUANTITY FOR 1 PISTON i.e 1CYL.
(PLEASE IGNORE IF IN PHOTO MENTIONED X3 / X4 / X6)
IF, YOUR ENGINE IS FOR 2CYL / 3CYL / 4CYL / 6CYL / 8CYL ENGINE PISTONS, THEN YOU PLEASE BOOK YOUR ORDER QUANTITY ACCORDING TO YOUR ENGINE.
OVERSIZE: IF YOU DO REQUIRE OVERSIZE PISTON RINGS ALSO LIKE 010 / 020 / 030 / 040 / 060 / 080 / 100 ETC.
WE CAN ALSO BE ABLE TO SUPPLY YOU THE SAME. IF OVERSIZE, PLEASE MESSAGE US WHAT SIZE YOU DO REQUIRE TO CHECK & ARRANGE ITS AVAILABILITY.
SPECIAL SIZE:
IF ANY SPECIAL SIZE IS REQUIRED FOR YOUR ENGINE, PLEASE DO INFORM WE CAN ABLE TO ARRANGE THE SAME FOR YOU ALSO?
SPECIAL PRODUCT: ANY KIND OF AUTO PARTS, WE ABLE TO SUPPLY YOU AGAINST YOUR SAMPLE / DRAWINGS. WE ABLE TO MANUFACTURE & SUPPLY THE SAME ACOORDING TO CUSTOMER?S REQUIREMENT.
RETURN POLICY:
WE ALWAYS TRY OUR BEST FOR HASSALE FREE BUSINESS TRANSACTION. BUT STILL IF ANY PROBLEM OCCUR, BEFORE OPENING ANY KIND OF RETURN REQUEST, YOU CAN CONTACT US DIRECTLY WE ARE HAPPY & TRY TO SATISFY YOU IN ALL RESPECT? IN CASE OF ANY PROBLEM LIKE DIDN?T LIKED OR DIDN?T FIT, WE ARE READY TO REFUND YOU AFTER THE INSPECTION OF THE ORIGINAL PRODUCT & MUST BE INTO ITS ORIGINAL PACKAGING.
FEEDBACK:
YOUR POSITIVE FEEDBACK IS IMPORTANT & VALUABLE TO US. WE ALWAYS LEAVE POSITIVE FEEDBACK TO OUR BUYER AS A GOOD MEMORY FOR SMOOTH BUSINESS.
EBAY MESSAGES:
YOUR ALL MESSAGES ARE IMPORTANT TO US. WE KNOW TIME IS VERY IMPORTANT. WE ARE TRYING TO DO QUICK REPLY, BUT SOMETIMES PLEASE ALLOW RESPONSE TIME 12-48HRS.
COMPATABILITY:
WE HAVE LISTED ALL OUR PRODUCTS WITH MUCH & MUCH INFORMATION AS POSSIBLE BY US. WE DO UNDERSTAND FROM LISTING YOU CAN ABLE TO GET ALL THE POSSIBLE DETAILS WHICH YOU REQUIRED ALSO YOU CAN CROSS-CHECK REFERENCE NUMBER FROM GOOGLE PORTAL ALSO IF INCASE YOU HAVING DOUBT.
WE TRY OUR BEST THAT OUR CUSTOMERS WILL GET THE PARCEL AS SOON AS PARCEL WITHOUT ANY DELAY.
BUT SOMETIME IF DELAY IN PARCEL DUE TO THIRD PARTY, SOME THINGS ARE BEYOND OUR CONTROL. SO WE JUST REQUEST YOU TO PLEASE MESSAGE US & WE TRY TO ESCALATE YOUR QUERY & UPDATE YOU TIME TO TIME & TRY TO GET YOUR THE PARCEL DELIVERED TO YOU.
ANY KIND OF VAT, GOVERNMENT TAXES OR IMPORT DUTY IS NOT CHARGED BY US. IF ANY IMPORT CHARGES, PLEASE CHECK YOUR COUNTRY RULES & REGULATIONS. IMPORT CHARGES ARE VERY NOMINAL BUT SOMETIMES IT VARY FROM ITEM TO ITEM & COUNTRY TO COUNTRY.
ANY KIND OF CONFUSION OR INFORMATION YOU REQUIRED, PLEASE FEEL FREE TO MESSAGE US.
⚠️ Fitment Verification: While this hydraulic pump coupling is engineered to OEM specifications for Case 580K/580SK applications, always confirm your equipment's pump shaft diameter (1.25"), coupling outer diameter (4.25"), and jaw configuration before ordering. Consult Case IH Service Manual for 580K/580SK or a certified heavy equipment technician for installation guidance. © 2026 Reliable Aftermarket Parts. All Case IH part numbers and trademarks are property of CNH Industrial. This is an aftermarket replacement component manufactured to meet or exceed OEM performance standards. Not affiliated with, endorsed by, or sponsored by CNH Industrial or any other OEM manufacturer. RETURN POLICY:
WE ALWAYS TRY OUR BEST FOR HASSALE FREE BUSINESS TRANSACTION. BUT STILL IF ANY PROBLEM OCCUR, BEFORE