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Allis Chalmers 8550 Tractor Parts

About the Allis-Chalmers 8550

The Allis-Chalmers 8550 was a large four-wheel-drive tractor built for the biggest field operations. It used a 12.0-liter six-cylinder diesel, 20-speed partial power-shift transmission, independent PTO, and a standard Acousta Cab II.

The 8550 was produced from 1978 through 1981 and was followed by the 4W-305. Its four-wheel-drive chassis and 300-horsepower diesel make it a different machine from the 8000 Series row-crop tractors, even though the model numbers are from the same late Allis-Chalmers era.

Serial Number Reference

Serial number locations: The tractor serial number is on the rear left side of the front frame.

The table below shows the beginning tractor serial number for each Model 8550 year:

 

1978-1979
Model 8550 year Beginning serial number
1978 1,083
1979 1,342
1980-1980
Model 8550 year Beginning serial number
1980 1,553
1981-1981
Model 8550 year Beginning serial number
1981 1,723

Total production: Unknown.

Allis-Chalmers 8550 Paint Reference

For restoration planning, the Allis-Chalmers 8550 is listed in the Allis-Chalmers tractor paint guide with the original paint references below.

Allis-Chalmers 8550 paint reference by production period
Production period Metal Wheels Disc Chassis Trim
1978 through 1985 Corporate Orange Cloud White Cloud White, Aluminum Black Semi-Gloss Cloud White roof

Paint placement can vary by production year, series, and equipment configuration.

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  • Hood Latch Snap Latch for Allis Chalmers D10 D12 D14 D15 D17 D19 D21, metallic hood latch snap fitting on brown background

    Hood Latch Snap Latch for Allis Chalmers D10 D12 D14 D15 D17 D19 D21 (Display)

    $9.50
    650
    Part Number: CH4000 Hood Latch Snap Latch Hood latch snap latch for select Allis Chalmers tractors, bale throwers, balers, and some Gleaner combines. Strike not included. Fits ALLIS CHALMERS - D10,...
  • Ammeter 60-0-60 AMP Gauge 2-inch Diameter (Display), round analog current meter for measuring electrical current with black face and red needle.

    Ammeter 60-0-60 AMP Gauge 2" Dia (Display)

    $18.50
    627
    Universal 60-0-60 AMP ammeter gauge with a 2" dia. hole fitment. Condition: New. Part Number: AMG60 Fits Allis Chalmers - 160, 170, 175, 180, 185, 190, 190XT, 200, 210, 220, 2RCP, 4650, 4660,...
  • Allis-Chalmers Engine Oil Pressure Switch D21 180 185 190 190XT 190XT III 200 210 220, display image of a used engine oil pressure switch with metallic body, threaded end, and electrical contact.

    Allis-Chalmers Engine Oil Pressure Switch D21 180 185 190 190XT 190XT III 200 210 220 (Display)

    $16.00
    608
    Part Number: 74021445 Allis-Chalmers Engine Oil Pressure Switch Engine oil pressure switch for listed tractors and combines. Fits Allis Chalmers - D21, 180, 185, 190, 190XT, 190XT III, 200, 210,...
  • Allis-Chalmers Case Radiator Cap, used display part shown on a beige background with a label marked 530 and barcode.

    Allis-Chalmers Case Radiator Cap (Display)

    $19.75
    530
    Chrome-plated radiator cap for select Allis-Chalmers and Case tractors and equipment. For pressurized systems and listed for the applications below. Part Number: AC-209D Fits Allis Chalmers - CA,...
  • AGCO Indak OEM Light Switch for Allis Chalmers 70258800, black toggle switch with metal and plastic components.

    Indak OEM Light Switch for Allis Chalmers 70258800

    AGCO
    $103.75
    70258800
    Indak OEM light switch for select Allis Chalmers tractors. 4-position rotary switch with Short Stop II 12V E36 30A circuit breaker fuse.Part Number: 70258800FitsAllis Chalmers 6060Allis Chalmers...
  • Allis-Chalmers Thermostat Switch for Allis-Chalmers 70272229, 71162474, with metal and brass components, for machinery temperature regulation.

    Thermostat Switch for Allis-Chalmers 70272229, 71162474

    Allis-Chalmers
    $34.00
    71162474
    Thermostat Switch for the listed Allis-Chalmers and other applications.Check the fitment list and cross references below for your application.Part Number: 71162474FitsAllis Chalmers 200 (sn...
  • Allis-Chalmers NBR Rubber Fuel Sending Unit Gasket, black rubber gasket with four bolt holes for fuel tank sealing.

    NBR Rubber Fuel Sending Unit Gasket

    Allis-Chalmers
    $4.25
    AB-3256RD
    NBR Rubber Fuel Sending Unit Gasket for select Allis Chalmers and other tractor models.Use the application and replacement numbers below to confirm fitment.Part Number: AB-3256RDFitsAllis Chalmers:...
  • An aftermarket inline fuel filter with two black rubber hoses, two metal clamps, and a metal housing, designed for Allis-Chalmers farm tractors.

    Inline Fuel Filter 33033

    Allis-Chalmers
    $8.75
    33033
    Part Number: 33033Inline Fuel FilterIn-line fuel filter for use with 3/8" fuel lines. Includes hose and clamps and is Used to help keep rust and dirt out of the carburetor.FitsAllis Chalmers -...
  • A close-up image of a gold-colored metal stop and bolt designed for Allis-Chalmers farm tractors. The stop has a rectangular, hollowed-out section, and the bolt has a threaded shaft with a hexagonal head.

    Rear Spinout Rim Stop & Bolt for Allis-Chalmers and More

    Allis-Chalmers
    $24.00
    70219456
    Rear spinout rim stop & hex bolt included for parallel drilled rim rails.New part sold under store SKU 70219456.Part Number: 70219456FitsAllis Chalmers - CA, D10, D12, D14, D15, D17, D19, WD, WD45,...
  • A metallic, round aftermarket mini Denso alternator pulley with a central hole, designed for use on Allis-Chalmers farm tractors, not for automobiles.

    Mini Denso Alternator Pulley AB-2315D

    Aftermarket
    $39.75
    AB-2315D
    Alternator Pulley Part Number: AB-2315D This alternator pulley is listed for the AB-535D Mini Alternator and select Denso alternators shown below. Review the dimensions before ordering. Fits AB-535D...
  • A round gauge panel designed for farm tractors, showing fuel level, water temperature, and engine temperature with labeled icons and color-coded indicators.

    Allis-Chalmers 6000 7000 8000 Series Fuel Gauge Water Temp Temperature Gauge

    Allis-Chalmers
    $159.75
    AC-4479D
    Fuel gauge, water temp, and temperature gauge for Allis-Chalmers 6000, 7000, and 8000 series tractors. Works with a 1 ohm to 88 ohm sending unit.Part Number: AC-4479DFitsAllis Chalmers 6060Allis...
  • A close-up image of an OEM light switch, specifically designed for Allis-Chalmers farm tractors, including models 6060, 6070, 6080, 7000, 7010, 7020, 7030, 7040, 7045, 7050, 7060, 7080, 7580, and 8550.

    OEM Light Switch for Allis Chalmers 6060 6070 6080 7000 7010 7020 7030 7040 7045 7050 7060 7080 7580 8550

    Allis-Chalmers
    $59.95
    AC-4302D
    4 position OEM Indak rotary light switch for select Allis Chalmers tractors.Part Number: AC-4302DFitsAllis Chalmers 6060Allis Chalmers 6070Allis Chalmers 6080Allis Chalmers 7000Allis Chalmers...
  • A metal ignition key switch for Allis-Chalmers farm tractors, with a key inserted. The switch has various electrical components and a key attached with a ring, labeled 'ALLIS.'

    Allis-Chalmers OEM Ignition Key Switch 70270334

    Allis-Chalmers
    $59.75
    AC-4488D
    OEM ignition key switch for select Allis-Chalmers tractors. Serial-number fitment notes are included below.Part Number: AC-4488DFitsAllis-Chalmers 6060Allis-Chalmers 6070Allis-Chalmers...
  • A pair of black rubber seals, circular in shape, used as part of the hydraulic cylinder lift arm seal kit for Allis-Chalmers farm tractors.

    Hydraulic Cylinder Lift Arm Seal Kit for Allis Chalmers D17 Series IV 170 175 180 185 190 190XT 200 8550 4W-305 7000 R40 R50 R5 R6 R7 R60 R70 N7

    AGCO
    $59.75
    70253346-7
    Hydraulic cylinder lift arm seal kit for the listed Allis Chalmers models.Kit contains 1 seal and 1 wiper, with the seal measuring 3.00" ID.Part Number: 70253346-7FitsAllis Chalmers D17 Series...