{"id":1624,"date":"2026-09-03T05:53:03","date_gmt":"2026-09-03T05:53:03","guid":{"rendered":"https:\/\/ever-powers.com\/?post_type=product&p=1624"},"modified":"2026-09-03T06:05:18","modified_gmt":"2026-09-03T06:05:18","slug":"yc504d-55-501-tractor-hydraulic-lift-cylinder","status":"publish","type":"product","link":"https:\/\/ever-powers.com\/de_at\/product\/yc504d-55-501-tractor-hydraulic-lift-cylinder\/","title":{"rendered":"YC504D.55.501 Tractor Hydraulic Lift Cylinder | 63mm Bore, 100mm Stroke"},"content":{"rendered":"
\n

<\/p>\n

\n
\"YC504D.55.501<\/div>\n
\n

The YC504D.55.501 is a 63 mm bore tractor hydraulic lift cylinder with a 35 mm rod, 100 mm stroke, and 300 mm mounting distance. Among the 63 mm bore cylinders in this family, it has the shortest stroke and the most compact mounting geometry \u2014 both of which matter when the machine’s installation space or linkage travel range is constrained.<\/p>\n

The 100 mm stroke is 10 mm shorter than the NF63C (110 mm) and 42 mm shorter than the MEZ504.55.016 (142 mm). The 300 mm mounting distance is notably more compact than the NF63C’s 350 mm. These are not minor differences \u2014 they determine whether this cylinder is physically compatible with a given machine, and they affect the range of implement movement the lift system can achieve.<\/p>\n

Ever-Power supplies the YC504D.55.501 as an aftermarket replacement cylinder for tractor hydraulic lift applications. Confirm dimensions against the existing cylinder before ordering.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

YC504D.55.501 \u2014 Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
Bore Diameter<\/td>\n63 mm<\/td>\nSame bore class as NF63C and MEZ504.55.016<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n35 mm<\/td>\nLarger than the NF63C’s 32 mm rod; affects rod stiffness and end connection dimensions<\/td>\n<\/tr>\n
Stroke<\/td>\n100 mm<\/td>\nShortest stroke in the 63 mm bore group; sets available linkage travel<\/td>\n<\/tr>\n
Mounting Distance<\/td>\n300 mm<\/td>\nMost compact mounting geometry in the 63 mm group; pin-center to pin-center retracted<\/td>\n<\/tr>\n
Anwendung<\/td>\nAgricultural tractor hydraulic lift systems<\/td>\nVerify fitment by measuring existing cylinder<\/td>\n<\/tr>\n
Supplier<\/td>\nEver-Power<\/td>\nOEM and aftermarket supply; custom specifications on inquiry<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

How the YC504D.55.501 Sits Within the 63 mm Bore Group<\/h2>\n

Several cylinders in the Ever-Power range share the same 63 mm bore. The bore determines how much force the cylinder generates at a given pressure. What distinguishes them from each other \u2014 and what determines whether one can replace another \u2014 is the stroke, mounting distance, and rod diameter.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nBore<\/th>\nRod<\/th>\nStroke<\/th>\nMounting Dist.<\/th>\n<\/tr>\n<\/thead>\n
YC504D.55.501<\/td>\n63 mm<\/td>\n35 mm<\/td>\n100 mm<\/td>\n300 mm<\/td>\n<\/tr>\n
NF63C<\/td>\n63 mm<\/td>\n32 mm<\/td>\n110 mm<\/td>\n350 mm<\/td>\n<\/tr>\n
TEQ300.59.001A<\/td>\n63 mm<\/td>\n35 mm<\/td>\n120 mm<\/td>\n300 mm<\/td>\n<\/tr>\n
QY350.59.003<\/td>\n63 mm<\/td>\n35 mm<\/td>\n140 mm<\/td>\n300 mm<\/td>\n<\/tr>\n
MEZ504.55.016<\/td>\n63 mm<\/td>\n30 mm<\/td>\n142 mm<\/td>\n362 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Key takeaway:<\/strong> All five cylinders above share a 63 mm bore and will generate similar theoretical hydraulic force at the same pressure. None of them are directly interchangeable with each other \u2014 stroke, mounting distance, and rod diameter all differ across the group. Matching the correct model requires verifying all three dimensions against the existing installation, not just the bore.<\/p>\n<\/div>\n

<\/p>\n

63 mm Bore: Piston Area and Theoretical Force<\/h2>\n

At 63 mm bore, the piston face area is approximately 3,117 mm\u00b2 (\u03c0 \u00d7 31.5\u00b2). This is the area over which hydraulic pressure acts to generate extension force. The relationship is direct: at 160 bar reference pressure, the theoretical extension force is in the order of 49.9 kN. At 180 bar, that rises to approximately 56.1 kN.<\/p>\n

\n

Engineering Reference Note:<\/strong> Force values above are theoretical calculations based on bore geometry and reference pressure only \u2014 not rated product specifications. Actual system output depends on your hydraulic circuit’s working pressure, valve restrictions, line losses, and mechanical efficiency. No rated pressure for the YC504D.55.501 has been confirmed by Ever-Power for publication here.<\/p>\n<\/div>\n

Because the YC504D.55.501 shares its 63 mm bore with the NF63C and other models in this group, the force potential at equivalent pressure is essentially the same across all of them. The distinguishing factors are geometry: stroke, mounting distance, and rod diameter \u2014 which is exactly what determines physical fitment and application suitability.<\/p>\n

<\/p>\n

Rod Diameter: 35 mm vs 32 mm \u2014 What the Difference Means<\/h2>\n

The YC504D.55.501 uses a 35 mm rod, compared to the 32 mm rod on the NF63C. The difference of 3 mm in diameter translates to a meaningful increase in cross-sectional area \u2014 a 35 mm rod has approximately 19% more cross-sectional area than a 32 mm rod. That directly affects two things.<\/p>\n

First, stiffness under compression. A thicker rod resists buckling more effectively when the cylinder is fully extended and subjected to axial compressive loads. For a 100 mm stroke cylinder, the extended rod length is relatively short, so buckling risk is low regardless \u2014 but the heavier rod still contributes to robustness under side loading, which can occur in lift linkages that are not perfectly aligned.<\/p>\n

Second, the rod-end connection dimensions change. A 35 mm rod will have a larger clevis or eye than a 32 mm rod. If you are replacing an NF63C with a YC504D.55.501 (or vice versa), confirm that the rod-end pin diameter and bracket geometry are compatible \u2014 they may not be, even if the bore and stroke happen to match your machine.<\/p>\n

The rod diameter also reduces the effective area on the rod side of the piston. For a double-acting cylinder, this means retraction force is lower than extension force \u2014 a standard characteristic of hydraulic cylinder design, not a defect.<\/p>\n

\"Tractor\"<\/p>\n

<\/p>\n

Why 100 mm Stroke Matters \u2014 and When It Does Not<\/h2>\n

Stroke is the total travel distance of the piston rod from full retraction to full extension. On the YC504D.55.501, that is 100 mm. This is the shortest stroke in the 63 mm bore group, and the question most buyers face is straightforward: is 100 mm of travel enough for the application?<\/p>\n

For tractor lift systems, stroke determines the range of movement available to the lift linkage. A tractor designed around a 100 mm stroke cylinder has its lift arm geometry, its implement position at full retraction (lowered), and its implement height at full extension (raised) all calculated around that 100 mm of travel. Fitting a cylinder with 20 mm of additional stroke into that system will push the linkage 20 mm past its designed endpoint \u2014 which may exceed the mechanical travel limits of the lift arm, over-extend the linkage, or result in the cylinder contacting its internal stop before the lift arm reaches its designed position.<\/p>\n

\n

Stroke and force are independent:<\/p>\n

A 100 mm stroke cylinder and a 142 mm stroke cylinder with the same 63 mm bore generate the same theoretical force at the same pressure. Shorter stroke does not mean less lifting force. It means less available travel \u2014 nothing more, nothing less. Selecting a replacement cylinder with a longer stroke than the original does not improve lifting capacity; it changes the geometry of the lift system in ways the machine was not designed for.<\/p>\n<\/div>\n

When a machine was designed specifically for a 100 mm stroke cylinder in a compact installation \u2014 one where the mounting brackets are close together and the linkage travel range is limited \u2014 fitting a longer-stroke replacement is not a straightforward swap. The 100 mm stroke of the YC504D.55.501 is a specification, not a limitation.<\/p>\n

<\/p>\n

Mounting Distance: 300 mm and What It Controls<\/h2>\n

The 300 mm mounting distance is the pin-center to pin-center measurement when the cylinder is fully retracted. This is the dimension that determines whether the cylinder physically fits between the machine’s two mounting pivot points. At full extension, the distance between pins will be 300 mm + 100 mm stroke = 400 mm. Both the retracted and extended positions need to be within the mechanical range of the machine’s linkage.<\/p>\n

At 300 mm, the YC504D.55.501 is the most compact installation geometry among the 63 mm bore cylinders in this range. For comparison, the NF63C sits at 350 mm \u2014 50 mm longer in the retracted position, and therefore 50 mm longer in the extended position as well. A machine built around a 300 mm mounting cylinder cannot simply accept a 350 mm mounting cylinder without modification to the bracket positions or linkage arms.<\/p>\n

Interestingly, two other cylinders in this group \u2014 TEQ300.59.001A (120 mm stroke) and QY350.59.003 (140 mm stroke) \u2014 also share the 300 mm mounting distance. All three have the same 63 mm bore and 35 mm rod. The only difference between those three is stroke. If you are sourcing a replacement and your existing cylinder has a 300 mm mounting distance and 63 mm bore but you are uncertain of the stroke, measuring the stroke precisely is essential to identify which of the three is the correct match.<\/p>\n

<\/p>\n

Hydraulic Cylinder Force Is Not Tractor Lifting Capacity<\/h2>\n

This point applies to every cylinder on this page and deserves a direct statement. The theoretical force a hydraulic cylinder generates \u2014 calculated from bore area and pressure \u2014 is the force at the rod tip along the cylinder axis. What a tractor actually lifts at its hitch points is governed by a separate set of mechanical factors: lift arm length, the ratio of the linkage, the angle at which the cylinder pushes on the arm, and where the cylinder is mounted relative to the arm pivot.<\/p>\n

Tractor manufacturers publish rated lift capacity figures based on whole-machine testing to defined standards \u2014 typically at a specified distance behind the hitch points. That figure is not derivable from cylinder bore and pressure alone. Knowing that the YC504D.55.501 has a 63 mm bore does not tell you how much the tractor will lift. It tells you the force the cylinder contributes to the system under a given hydraulic pressure.<\/p>\n

This matters practically when someone considers upgrading to a larger bore cylinder hoping to increase hitch capacity. The cylinder is one variable in a multi-variable mechanical system. Increasing bore without redesigning the linkage, adjusting hydraulic system flow, and verifying the structural capacity of the lift arms and mounting points will not reliably increase usable lift capacity \u2014 and may create problems in the hydraulic circuit if the pump cannot deliver adequate flow to the larger bore at the same operating speed.<\/p>\n

<\/p>\n

Measuring for Replacement: What to Verify<\/h2>\n

The YC504D.55.501 is a specific configuration. Three other cylinders in this range share the same 63 mm bore and 35 mm rod and 300 mm mounting distance \u2014 the only way to confirm you have the right one is to measure the stroke of your existing cylinder.<\/p>\n

\n

Measurement checklist for YC504D.55.501 replacement verification:<\/p>\n

    \n
  • Bore: confirm 63 mm (measure barrel inner diameter or calculate from outer diameter minus wall thickness)<\/li>\n
  • Rod diameter: confirm 35 mm (measure with calipers on clean rod surface)<\/li>\n
  • Stroke: confirm 100 mm (extended pin-center distance minus retracted pin-center distance)<\/li>\n
  • Mounting distance: confirm 300 mm (pin-center to pin-center, fully retracted)<\/li>\n
  • Rod-end pin diameter (calipers)<\/li>\n
  • Base-end pin diameter (calipers \u2014 may differ from rod end)<\/li>\n
  • Mounting end type at both ends: clevis, eye, trunnion, or other<\/li>\n
  • Hydraulic port thread: NPT, BSP, or metric; confirm size and location<\/li>\n
  • Number of ports: one port (single-acting) or two ports (double-acting)<\/li>\n
  • Available clearance around the cylinder body in the installed position<\/li>\n<\/ul>\n<\/div>\n

    If the existing cylinder is seized or badly damaged and cannot be measured directly, document what you can \u2014 port location, end types, any visible markings \u2014 and photograph both ends and the body. The machine’s original service manual, if available, is the most reliable source for confirming the original cylinder specification.<\/p>\n

    <\/p>\n

    When to Inspect the Hydraulic Lift Cylinder<\/h2>\n

    The cylinder is one component in the hydraulic circuit. Several common symptoms point to a circuit-level problem rather than a failed cylinder, and replacing the cylinder without isolating the fault first is an expensive way to not solve the problem.<\/p>\n

    \n
    \n

    Implement drifts down slowly in neutral<\/p>\n

    Could be internal cylinder bypass (piston seal), control valve internal leakage, or check valve failure. Isolate by capping the cylinder ports \u2014 if drift stops, the leak source is in the external circuit. If drift continues with ports capped, the cylinder’s piston seal is a more likely suspect. Do not assume the cylinder is at fault before running this test.<\/p>\n<\/div>\n

    \n

    Oil leaking at the rod seal<\/p>\n

    Look at the rod surface as well as the seal. A scored or pitted rod will damage new seals quickly \u2014 if the rod surface is damaged, the cylinder body itself needs attention, not just the seal. A thin oil film on the rod after operation can be normal on some older designs; a visible drip or accumulation is not.<\/p>\n<\/div>\n

    \n

    Cylinder reaches full extension before lift arm completes travel<\/p>\n

    On a correctly matched replacement, the cylinder and the linkage should reach their travel limits at the same time. If the cylinder hits its internal stop before the lift arm reaches full height, the stroke of the replacement may be too short for the machine \u2014 or the mounting geometry has shifted. Verify mounting distance and stroke against the original specification.<\/p>\n<\/div>\n

    \n

    Weak or slow lifting at normal load<\/p>\n

    Check hydraulic fluid level and condition first. Contaminated or aerated fluid causes power loss throughout the circuit. A clogged hydraulic filter reduces flow. A failing pump reduces pressure. Internal cylinder bypass is only one of several possible causes \u2014 and typically shows itself as drift rather than as a straightforward loss of lift force.<\/p>\n<\/div>\n<\/div>\n

    <\/p>\n

    Requesting a Quotation for YC504D.55.501<\/h2>\n

    To get an accurate quotation \u2014 whether for a single replacement unit or a bulk procurement \u2014 the following information is most useful. Partial information is workable; complete information avoids back-and-forth and speeds up the process.<\/p>\n

    \n
      \n
    • Reference number: YC504D.55.501<\/strong><\/li>\n
    • Order quantity<\/li>\n
    • Tractor or machine model and year, if known<\/li>\n
    • Confirmed bore, rod diameter, stroke, and mounting distance from measurement<\/li>\n
    • Pin diameters at both ends<\/li>\n
    • Mounting end type (clevis, eye, or other) at both ends<\/li>\n
    • Port thread type, size, and location<\/li>\n
    • Single-acting or double-acting (confirm from number of ports)<\/li>\n
    • Working pressure if known from machine documentation<\/li>\n
    • Photos of the existing cylinder: side view, both ends, ports, any damage visible<\/li>\n
    • Any special requirements (stroke modification, surface treatment, seal type)<\/li>\n<\/ul>\n<\/div>\n

      For replacement inquiries where the original part number is unknown, measured dimensions and photographs of the existing unit are a workable basis for cross-referencing. If a dimensioned drawing is available from the original machine documentation, include it \u2014 it removes uncertainty about end connection geometry and port specification.<\/p>\n

      <\/p>\n

      Frequently Asked Questions \u2014 YC504D.55.501<\/h2>\n
      \n
      \nHow is the YC504D.55.501 different from the NF63C?<\/summary>\n
      \n

      Three dimensions differ. The YC504D.55.501 has a 35 mm rod (vs 32 mm on the NF63C), a 100 mm stroke (vs 110 mm), and a 300 mm mounting distance (vs 350 mm). Both share the same 63 mm bore. Because of these differences, they are not interchangeable. A machine built for the NF63C has bracket spacing and linkage geometry calibrated to a 350 mm mounting distance and 110 mm stroke \u2014 neither of which matches the YC504D.55.501. Always verify all dimensions, not just the bore.<\/p>\n<\/div>\n<\/details>\n

      \nCould I use a 120 mm or 140 mm stroke cylinder instead of the 100 mm?<\/summary>\n
      \n

      Not as a direct replacement without modification. A 120 mm stroke cylinder in a system designed for 100 mm will extend 20 mm past the designed end position. Depending on the machine, this may mean the lift arm contacts a mechanical stop before the cylinder reaches full extension, the linkage is forced into an over-travel position, or the cylinder body is too long to install with the correct mounting distance. If the existing cylinder has a 100 mm stroke, the replacement should match it.<\/p>\n<\/div>\n<\/details>\n

      \nWhy does the 300 mm mounting distance matter if the stroke matches?<\/summary>\n
      \n

      Stroke and mounting distance are independent dimensions. Even if stroke is correct, a cylinder with the wrong mounting distance will have its pin centers misaligned with the machine’s bracket pivot points. In the retracted position, the rod-end pin will either not reach its bracket (too short) or push the linkage past its designed minimum position (too long). Both mounting distance and stroke need to match the original specification.<\/p>\n<\/div>\n<\/details>\n

      \nDoes a shorter stroke mean less lifting force?<\/summary>\n
      \n

      No. Stroke has no effect on the force a cylinder generates. Force is determined by bore area and pressure: F = P \u00d7 A. A 63 mm bore cylinder at 160 bar generates the same theoretical extension force regardless of whether its stroke is 100 mm or 200 mm. Stroke only determines how far the rod travels \u2014 the range of movement available to the linkage. It does not affect the force at any point in that travel.<\/p>\n<\/div>\n<\/details>\n

      \nIs the 35 mm rod on the YC504D.55.501 better than the 32 mm rod on the NF63C?<\/summary>\n
      \n

      It is larger, but whether that is “better” depends on the machine. A 35 mm rod has greater cross-sectional area, which improves compression stiffness and side-load resistance slightly. For a 100 mm stroke in a well-aligned installation, a 32 mm rod would be adequate by most hydraulic engineering standards. The important thing for replacement purposes is that the rod diameter must match the existing rod-end connection \u2014 the pin diameter, clevis width, and bracket geometry are all sized around the original rod. Fitting a 35 mm rod into a bracket designed for a 32 mm rod, or vice versa, will require modification.<\/p>\n<\/div>\n<\/details>\n

      \nWhat information do I need before requesting a quote?<\/summary>\n
      \n

      At minimum: the model reference (YC504D.55.501), your confirmed bore, rod diameter, stroke, and mounting distance from direct measurement, pin diameters at both ends, mounting end type, port thread specification, and quantity. Photos of the existing cylinder from both ends and side view help confirm compatibility before quotation. If the cylinder has failed and cannot be measured fully, document what is accessible and include the machine model and year \u2014 partial information still allows an initial assessment.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n

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      YC504D.55.501 hydraulic lift cylinder: 63mm bore, 35mm rod, 100mm stroke, 300mm mounting distance. Specs, replacement guide, and RFQ info for tractor lift applications.<\/p>","protected":false},"featured_media":1610,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[112],"product_tag":[],"class_list":["post-1624","product","type-product","status-publish","has-post-thumbnail","product_cat-tractor-hydraulic-cylinder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/product\/1624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/media\/1610"}],"wp:attachment":[{"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/media?parent=1624"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/product_brand?post=1624"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/product_cat?post=1624"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ever-powers.com\/de_at\/wp-json\/wp\/v2\/product_tag?post=1624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}