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Allis Chalmers I400 Tractor Parts

About the Allis-Chalmers I400

The I400, also written I-400, followed the I40 in the Allis-Chalmers industrial tractor range. Built in West Allis, Wisconsin, from 1966 through 1968, it used a four-cylinder 2.4-liter gasoline engine rated at 40.6 horsepower. It featured two-wheel drive and power steering and was offered for loader and backhoe work.

Confirm the engine, tractor serial number, and any application notes in each product description before ordering.

Serial Number Reference

The table lists the beginning tractor serial number for each production year.

Model I400 year Beginning serial number
1966 1,003
1967 1,281
1968 1,495

Final serial number listed: 1,750.

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  • Allis-Chalmers tractor side-nameplate hardware set, with silver domed rivets arranged beside round stainless retaining clips on a white background.

    Allis Chalmers Side Nameplate Rivets & Stainless Clips Set

    Allis-Chalmers
    $24.75
    DJS016
    Allis Chalmers side nameplate rivets and stainless clips set for select models.Part Number: DJS016FitsD10D12D14D15D17I40I400I60I600Specs14 aluminum rivets14 stainless steel clips
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  • Allis-Chalmers front crankshaft seal, part number 70224929. Circular metal-rimmed seal with a dark brown inner sealing lip, shown against a white background.

    Allis-Chalmers Front Crankshaft Seal 70224929

    Allis-Chalmers
    $12.00
    70224929
    Part Number: 70224929 Overview Front crankshaft oil seal for the listed Allis-Chalmers tractor, crawler, backhoe and industrial applications. This seal measures 2.004 in. outside diameter, 1.500 in...
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  • Valve train kit for Allis-Chalmers D10, D12, D14, D15, and H3 farm tractors, arranged in four groups. The kit includes eight long metal valves, eight dark coil springs, and eight cylindrical metal valve guides.

    Valve Train Kit for Allis Chalmers D10 D12 D14 D15 H3

    Allis-Chalmers
    $124.75
    AC-2129D-003
    Valve train kit for listed Allis Chalmers tractors. Includes valve keepers, guides, springs, exhaust valves, and intake valves.Part Number: AC-2129D-003FitsB, C, IB, RC (Engine Serial No. CE161057...
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  • Three pairs of curved metal main bearing shells for an Allis-Chalmers farm tractor, arranged against a white background.

    Standard Main Bearing Set (Set of 3) for Allis-Chalmers

    Allis-Chalmers
    $199.75
    AC-1954D
    Standard main bearing set for Allis-Chalmers applications listed below. Set of 3. For 2.749 standard main journal.Part Number: AC-1954DFitsAllis Chalmers - D10, D12, D14, D15, I40, I400, I60 (all...
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  • Two silver semicircular connecting rod bearing shells for an Allis-Chalmers farm tractor, shown separately against a white background; one shell is stamped “.020.”

    Connecting Rod Bearing .020 Undersize for Allis-Chalmers

    Allis-Chalmers
    $24.75
    AC-2488D
    Connecting rod bearing .020 undersize for Allis-Chalmers applications listed below. For 0.020" (1.917") undersize rod journal. Priced and sold per journal.Part Number: AC-2488DFitsAllis Chalmers -...
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  • Two silver semicircular Allis-Chalmers connecting rod bearing shells, shown apart against a white background; one shell is marked .010.

    Connecting Rod Bearing .010 Undersize for Allis-Chalmers

    Allis-Chalmers
    $19.99
    AC-2485D
    Connecting rod bearing .010 undersize for Allis-Chalmers applications listed below. For 0.010" (1.927") undersize rod journal. Priced and sold per journal.Part Number: AC-2485DFitsAllis Chalmers -...
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  • Four silver connecting rod bearing pairs arranged in a two-by-two grid on a white background, shown as a standard-size set for Allis-Chalmers D10, D12, D14, and D15 farm tractors.

    Standard Connecting Rod Bearing Set (4-Rods) for Allis-Chalmers D10, D12, D14, D15

    Allis-Chalmers
    $79.75
    AC-1952D
    Standard connecting rod bearing set (4-rods) for Allis-Chalmers D10, D12, D14, D15 and other listed applications.For 1.937" standard rod journal.Part Number: AC-1952DFitsAllis Chalmers - D10, D12,...
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  • Black Allis-Chalmers engine pushrod, shown individually, for D10, D12, D14, and D15 farm tractors.

    Pushrod (sold individually) for Allis Chalmers D10, D12, D14, D15

    Allis-Chalmers
    $27.75
    AC-2410D
    Pushrod sold individually for the listed Allis Chalmers applications. Condition: New.Part Number: AC-2410DFitsAllis Chalmers - D10, D12, D14, D15Industrial - 500, 510, 512, 514, 521, 610, 612, 614,...
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  • Allis-Chalmers Distributor Hold Down Clamp, a metallic mechanical component used for securing distributor assemblies in agricultural or industrial machinery.

    Distributor Hold Down Clamp

    Allis-Chalmers
    $7.75
    AB-2523D
    Distributor hold down clamp for Delco distributor applications. Sold individually and used 2 per engine.Part Number: AB-2523DFitsAllis Chalmers - B, C, CA, D10, D12, D14, D15, D17, IB, WC, WD, WD45,...
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  • Bright orange, rounded Allis-Chalmers farm tractor seat cushion with a raised padded rim and smooth center, shown against a white background.

    Orange Tractor Seat Pad Cushion 19"

    Allis-Chalmers
    $39.75
    YF30ORG
    Orange tractor seat pad cushion with drawstring. Fits listed Allis-Chalmers, Case, and Cockshutt tractors with round pan seats.Part Number: YF30ORGFitsAllis Chalmers - B, C, CA, D10, D12, D14, D15,...
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  • Close-up product photo of a black 12-volt, 3-post saddle-mount starter solenoid for an Allis-Chalmers farm tractor. It has two large copper threaded terminals, a smaller control terminal, and metal mounting tabs; labels read “12V” and “733 102.”

    Starter Solenoid 3 Post Saddle Mount 12 Volt

    Allis-Chalmers
    $31.25
    DR1467
    3 post saddle mount starter solenoid for 12 volt systems only. Fits multiple Allis-Chalmers, Case, Cockshutt, International, John Deere, Massey Ferguson, Minneapolis Moline, Oliver, and White...
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  • Allis-Chalmers tractor valve train kit arranged in four groups on a white background, each with two metal valves, two coil springs, and two cylindrical valve guides.

    Allis Chalmers Valve Train Kit B C IB RC CA

    Allis-Chalmers
    $124.75
    AC-2129D
    Valve train kit for select Allis Chalmers models. Includes the listed replacement parts and usage notes.Part Number: AC-2129DFitsB, C, IB, RC (with engine serial numbers CE161057 and above)CAD10 (up...
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  • Assortment of engine gaskets and seals for Allis-Chalmers D10, D12, D14, D15, and D15II farm tractors, including a four-cylinder head gasket and various brown and gray engine gaskets.

    Allis Chalmers Engine Gasket Set D10 D12 D14 D15 D15II

    Allis-Chalmers
    $129.75
    AC-1949D
    Engine gasket set for select Allis Chalmers gas or LP applications. Fits the listed engine sizes and model qualifiers.Part Number: AC-1949DFitsD10D12D14I40 (all gas or LP with 138 and 149 CI...
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  • Allis-Chalmers Rear Crankshaft Seal D10 D12 D14 D15, image of a black rubber rear crankshaft seal for Allis-Chalmers tractors.

    Allis Chalmers Rear Crankshaft Seal D10 D12 D14 D15

    Allis-Chalmers
    $24.75
    AB-2000D
    Rear crankshaft seal for listed Allis Chalmers tractor and equipment applications.Part Number: AB-2000DFitsAllis Chalmers - D10, D12, D14, D15, I40, I400, I60 (Gas & LP), Crawler: H3 (Gas & LP),...
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  • Black 12-volt ignition coil for an Allis-Chalmers farm tractor, with a built-in resistor, metal mounting band, and electrical terminals on top. The label says to use without an external resistor.

    12 Volt Coil with Internal Resistor

    Allis-Chalmers
    $24.75
    AB-509D
    AB-509D is an oil-filled, barrel-style 12 volt distributor ignition coil with internal resistance, a 2-3/16" barrel outside diameter, and an included mounting bracket. It features 3.1 ohms primary...
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  • Black Allis-Chalmers control lever knob, part numbers 70233770 and 233770, shown diagonally on a white background. It has a long, slightly tapered cylindrical shape with a rounded end.

    Allis-Chalmers Control Lever Knob 70233770 233770

    Allis-Chalmers
    $18.75
    70233770
    Allis-Chalmers control lever knob for select tractors and industrial models. New rubber knob with 1" x 4" dimensions and a 0.445" hole ID.Part Number: 70233770FitsAllis-Chalmers D10, D12, D14, D15,...
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  • Allis-Chalmers Allis Chalmers Tachometer Drive Adapter D10 D12 D14 D15 D17 70228768

    Allis Chalmers Tachometer Drive Adapter 70228768

    Allis-Chalmers
    $18.75
    AC-1915D
    Tachometer drive adapter for select Allis Chalmers tractors and industrial models. Use with item # AC-1912D.Part Number: AC-1915DFitsI40I400I60D10D12D14D15 (Gas/LP)D17 (Gas/LP)Backhoe: 615I600...
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  • Allis-Chalmers Tachometer Drive Threaded Nipple 70228769, metal threaded fitting with hexagonal center for tachometer connection.

    Allis Chalmers Tachometer Drive Threaded Nipple 70228769

    Allis-Chalmers
    $18.75
    AC-1912D
    Tachometer drive threaded nipple for select Allis Chalmers tractors and industrial models. Threads into the governor housing on gas and LP models or the block on diesel models.Part Number:...
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