Views: 0 Author: Elecdura Publish Time: 2026-08-13 Origin: Site
Start with the Fendt tractor's full chassis or serial number and use the current AGCO Parts Books/dealer catalogue to obtain the original compressor part number and supersessions. Then confirm the removed compressor's manufacturer label, model and serial; clutch voltage or control type; pulley diameter, belt profile and groove count; mount; suction/discharge ports and clocking; refrigerant; oil product and quantity.
Do not order by “Fendt 700,” a photograph or a compressor family such as SD7H15 alone. Production changes, engine and cab options, market specification and previous repairs can change the compressor or bracket. One family can be sold with different displacement, 12- or 24-volt clutch, V-belt or multi-rib pulley, diameter, port head and oil charge. Buyers can use Elecdura's agricultural A/C compressor range as a sourcing route only after these identifiers agree.
Machine serial and the OEM parts record lead the identification; physical compressor evidence confirms the current installation.
Identifier | Where to obtain it | Why it matters | Common mistake |
|---|---|---|---|
Chassis/serial | Machine plate and records | Controls production variant and parts book | Using series name only |
AGCO/Fendt OE number | Parts Books/dealer and old label/invoice | Links original and superseded assemblies | Dropping suffix or supersession |
Compressor maker/model | Cleaned nameplate | Identifies family and supplier data | Treating family as full specification |
Clutch/control voltage | Label, parts data and wiring manual | Prevents coil/control mismatch | Guessing from connector or tractor age |
Pulley | Measured removed unit and belt | Sets speed, alignment and belt interface | Counting grooves without measuring diameter |
Mount | Bracket photos and dimensions | Controls alignment and installation | Assuming all ear mounts match |
Ports/head | Capped compressor, lines and drawings | Controls manifold/seal and hose routing | Matching only approximate port location |
Refrigerant/oil | Machine/compressor service data | Controls lubrication and compatibility | Using a universal oil or charge |
Fendt's official spare-parts service directs owners to AGCO Parts Books, where parts lists and exploded views identify service parts for the machine. Access and ordering are supported through the Fendt sales partner. The tractor chassis/serial connects the generic series to its actual production configuration.
Record the model exactly as plated, serial, year if known, market, engine and cab. Ask the dealer for the current compressor OE number, every supersession, bracket or hose change and whether a kit replaces several old items. For older Farmer, Favorit and other supported machines, the Fendt Classic Genuine Parts program can provide another reference route, but age does not remove the need for serial-controlled identification.
A previous owner may have installed a universal compressor, custom bracket or reworked hoses. Therefore the installed unit can prove current physical interfaces but may not be the original design. Compare its label and geometry with the AGCO record and note any mismatch before ordering a direct replacement.
Photograph the compressor installed from the front, rear and both port sides before recovery or removal. Capture belt path, tensioner, brackets, spacers, harness, ground, hose routing and clearance. Then clean the label gently enough to read it without destroying ink. Record every character, including suffixes, rather than copying the most prominent family name.
Sanden's official FAQ says its aftermarket model number appears on the compressor label and its product search can use a Sanden model or manufacturer part number. It also instructs users to check the label for oil type and amount. Other manufacturers arrange labels differently, but useful fields commonly include maker, model, assembly/part, serial/date, refrigerant, oil and total oil quantity.
If a label is missing or unreadable, do not invent the missing identity from casting shape. Search the OE number from the machine record and compare a controlled dimensional worksheet. A seller's “SD7H15 style” description establishes neither manufacturer authenticity nor interchangeability.
MAHLE's 2025 universal compressor flyer for agricultural and construction machinery lists multiple SD7H15 examples with different pulley diameters, groove counts and 12- or 24-volt clutches. The same table includes 119- and 120-millimetre multi-rib pulleys and 132-millimetre two-groove versions. This is direct evidence that the family name alone is incomplete.
DENSO has likewise published non-interchangeability guidance for visually related compressors that differ by displacement, pulley/limiter, oil quantity and connector location. Those DENSO examples are not Fendt cross-references; they demonstrate the matching principle. Treat every assembly number as the controlled item.
Many agricultural belt-driven compressors use an electromagnetic clutch, but the coil voltage must match the machine circuit. A 12-volt and 24-volt version can share the same body, mount and pulley appearance. Incorrect voltage may prevent engagement, overheat the coil, damage the control circuit or create repeat intermittent faults.
Verify voltage from the compressor label, OE/parts data and electrical schematic. Measure machine supply only through the Fendt diagnostic procedure and under the correct command/load condition. A connector shape or wire color is not a voltage specification. Some compressors use clutchless drive limiters or electronic control valves; do not apply a clutch test to those architectures.
Sanden's service material contains different loaded-voltage and coil-resistance criteria for its defined 12- and 24-volt clutch systems. Those figures are useful when the exact Sanden clutch and manual apply; they are not universal acceptance values for every Fendt replacement, aftermarket coil or ambient temperature.
The same compressor family can hide different voltage, pulley diameter, belt profile, groove count and mount configuration.
Measure the effective pulley diameter using the supplier's defined method; do not rely on a rough outside edge. Identify classical V-belt, multiple V-groove or serpentine/multi-rib profile and count active grooves. Photograph the original belt and note whether an unused groove is intentional. Record pulley offset from the mounting datum and clutch-face position.
A different diameter changes compressor speed at a given engine speed. The wrong offset or groove profile causes belt misalignment, noise, edge wear, thrown belts and bearing load. A pulley can bolt onto the compressor yet be wrong for the tractor drive. Inspect idlers, tensioner and crank pulley before blaming a new compressor for a belt problem.
A conventional clutch has a coil, pulley bearing and armature/drive plate with a specified air gap. A direct-drive or clutchless compressor can use a torque limiter designed to protect the belt path if the compressor locks. Similar front faces can conceal different engagement and overload behavior.
Do not transfer an old clutch or pulley unless the compressor manufacturer approves the parts and method. Record coil connector, lead length, grounding method, pulley bearing, plate type, retaining hardware and air gap. A burned clutch may be a consequence of low voltage, excessive cycling, poor condenser airflow or a seized compressor—not the original failure.
Record the number and orientation of mounting ears, front/rear ear spacing, hole or bushing diameter, center distances and compressor length. Some ears contain sliding bushes that must be positioned correctly so tightening does not crack the casting. Compare any separate cradle, rear support and spacer stack.
Dry-fit without forcing hoses or wiring. The pulley grooves must align with the tractor drive within the service limit, the belt must clear the clutch/coil lead and the body must clear engine, hood and cab structures through vibration and tensioner travel. Never grind an ear or omit a rear brace to make an approximate compressor fit.
The suction port is normally larger, but port identity, thread, pad/manifold design, O-ring, pilot diameter, spacing and clocking must be confirmed from drawings or the capped old unit. Port heads can be top, rear or side mounted and may rotate hose routing toward an obstruction. A pressure-relief valve, service port or sensor may also belong to the head/manifold.
Keep caps installed until the controlled connection step. Do not insert dirty gauges or use an unknown plug as a thread checker. Photograph the line manifold and seal orientation during disassembly, discard seals as required and protect open hoses from moisture and debris. Never bend rigid or aged hoses to reach a mismatched head.
A clutch wire is not the only possible electrical interface. Variable-displacement compressors may have an electronic control valve, speed/temperature sensor or protective switch. Confirm connector count, keying, pinout, control type and clocking. A two-pin plug that physically fits may have different electrical behavior.
If an aftermarket compressor is supplied without a valve or switch, verify whether transfer is authorized and whether the old component remains serviceable and calibrated. Do not swap valves between family lookalikes. Connector location can determine harness reach and heat exposure even when the valve itself is compatible.
Use the Fendt machine data and exact compressor label/service information to identify refrigerant, oil chemistry/viscosity and system/compressor quantity. A compressor may arrive prefilled for a broad application or with a transport quantity that needs an OEM balancing procedure. Do not drain and refill by habit from another tractor model.
Oil amount remaining in other components depends on the failure and service operation. Too little harms lubrication; too much reduces capacity and can damage the compressor. Moisture, metal debris, mixed oil and sealant require a documented repair decision. Use calibrated refrigerant equipment and follow environmental and technician-licensing rules.
Evidence group | Required fields | Acceptance rule |
|---|---|---|
Machine | Fendt model, chassis/serial, market, engine, cab | Matches current parts catalogue record |
OE chain | Original number, supersessions, kit notes | No dropped suffix; change notes understood |
Compressor | Maker, full model/assembly, serial/date | Exact supplier record or approved cross |
Electrical | Voltage, clutch/limiter/control, connectors | Schematic and compressor data agree |
Drive | Pulley profile, grooves, diameter, offset | Belt and alignment match |
Mechanical | Mount ears, bushings, centers, envelope | Bracket fits without modification |
Refrigerant | Ports, seals, refrigerant, oil, quantity | All line and service requirements agree |
Commercial | Condition, included parts, warranty, stock | Quoted item and remedy are explicit |
State whether the quotation is new genuine, new branded aftermarket, new private label, remanufactured or used. A universal agricultural compressor can be valid when every technical field matches and the bracket/hoses are engineered, but “universal” does not mean bolt-on. Define who supplies any adapter, manifold, pulley or electrical change and who owns the system warranty.
For remanufactured units, request core identity, replaced wear parts, machining limits, clutch/coil status, control valve, oil cleanliness, leak/functional test and traceability. An attractive exchange price can become expensive if core return, hose modification or repeat seasonal downtime is omitted.
Fendt model, full chassis/serial, market, engine, cab and production year if verified.
AGCO/Fendt OE number, supersession history and any dealer kit or bracket notes.
Old compressor maker, full model/assembly/serial label and installed photographs.
Clutch voltage or control architecture, connector, coil lead and grounding method.
Pulley belt profile, active grooves, diameter, offset and clutch/limiter design.
Mount ears/bushings/centers, envelope, head/ports, manifold/seals and clocking.
Refrigerant, exact oil product, compressor/system oil procedure and precharge status.
New/reman/used condition, included parts, quantity, destination, lead time and warranty.
Use service history to group tractors by chassis-controlled compressor assembly, not only fleet model. Link each approved cross-reference to photographs and the full worksheet, then forecast by installed population, failure rate and harvest-season lead time. Hold critical seals, driers and any approved belt or electrical service parts with the compressor.
Before peak season, inspect stored cartons for crushing, moisture, lost port caps or oil stains and verify that catalogue supersessions have not changed. Rotate inventory under the supplier's storage limits. A smaller number of verified assemblies is safer and easier to support than a broad shelf of approximate SD7H15 lookalikes.
Receiving inspection must preserve caps while confirming ports, seals, mount, control connector, pulley and batch identity.
Match identity. Compare PO, OE chain, maker model, voltage/control, batch and condition.
Record packaging. Photograph crushed cartons, oil stains, broken caps or impact before unpacking further.
Keep ports capped. Confirm caps and dry exterior without exposing the new unit unnecessarily.
Compare side by side. Check pulley, clutch/limiter, mount, head, ports, connector and envelope against the old unit.
Verify included content. Identify seals, manifold, valve, brackets, oil information and installation notes.
Resolve discrepancies first. Do not recover refrigerant or immobilize the tractor until the replacement is approved.
Determine why the old compressor failed. Inspect condenser and radiator airflow, fan operation, belt/tensioner, clutch circuit, refrigerant charge, leaks, restriction, expansion device, drier, oil and contamination. A seized compressor can burn a clutch; weak condenser airflow can drive head pressure and thermal load; debris can destroy the replacement.
Follow the repair plan for flushing or replacing components, renew the receiver-drier and expansion device where required, cap cleaned lines, install new specified seals and torque ports/mounts correctly. Evacuate, leak test and charge by mass. Verify belt alignment, clutch/control command, vent temperature and high/low-side behavior under the machine procedure.
No. Use the full chassis/serial and current AGCO parts record, then confirm the installed compressor and interfaces.
No. Voltage, pulley, mount, head/ports, control, oil and other assembly details can differ within that family.
Use the label, OE/parts data and wiring information. Do not guess from connector shape, resistance alone or tractor age.
Not without engineering approval. Diameter changes compressor speed and offset/profile affect alignment and belt life.
Follow the machine and compressor supplier procedure. After a system opening or compressor failure, the drier and other components commonly require replacement or controlled evaluation.
No. Use drawings, the capped old unit, approved gauges or supplier evidence. Keep the new unit protected from moisture and debris until installation.
The reliable sequence is chassis/serial, AGCO/Fendt OE chain, installed label and full physical/electrical specification. Matching only the tractor model, compressor casting or family name leaves too many uncontrolled variables. Resolve every difference before refrigerant recovery and keep the approved worksheet for future seasonal orders.
For repeat-volume sourcing, send Elecdura the Fendt chassis ranges, OE numbers and supersessions, label/installed photographs, voltage/control, pulley, mount, ports, refrigerant/oil and annual demand through the agricultural compressor project contact page. Compare offers on complete fit, verified factory, packaging, lead time, change control and warranty evidence.
