Case IH 956/956XL/1056/1056XL Diesel Tractor Parts Book (P/N Don 8-3761)

This 1,143-page PDF reproduces the Case OEM parts catalog for 956, 956XL, 1056, and 1056XL diesel tractors. The base catalog is marked Don. 8-3761, issued February 1988 and printed in England; selected transmission pages in the power train section carry the revised Don. 8-3761R1 identifier and a July 1988 issue date. It is best suited to mechanics, restorers, parts departments, and experienced owners who already understand repair work and need factory illustration-to-part-number mapping.

• Build and PIN coverage: French-built 956XL from PIN 2351, 956AXL from PIN 10601, 1056XL from PIN 1201, and 1056AXL from PIN 8851; German-built 956 from PIN 1081, 956XL from PIN 2943, 1056 from PIN 1071, and 1056XL from PIN 2171.
• D358 engine and fuel systems: Exploded views and parts tables cover complete service engines, cylinder head and valve gear, crankcase, crankshaft and flywheel, pistons and sleeves, lubrication components, cooling assemblies, VA and VE injection pumps, nozzle holders, filters, lines, and fuel tanks.
• Power train and steering variants: Coverage includes Fichtel and Sachs or LUK double-clutch layouts, shift linkages, non-synchronized and synchronized range gearing, speed-reducer versions, engine and ground-speed PTOs, transfer gearbox, 2WD and 4WD transmission lubrication, 4WD differential and hub planetary drive, and ZF steering components.
• Hydraulics and brakes: The catalog maps Sensodraulic draft and position-sensing equipment, tandem-pump and Combi-filter arrangements, Bosch SB23 auxiliary valves, rockshaft and lift components, Westinghouse and other hydraulic trailer-brake layouts, plus hand-brake and one- or two-circuit pneumatic trailer-brake systems.
• Electrical, cab, and chassis equipment: Separate lists identify starting and charging components, instruments, relays, lighting, washer/wiper parts, heater and air-conditioning hardware. Chassis coverage extends to cab frames, doors, roofs, Grammer and Sable seats, automatic and French-version trailer hitches, drawbar and piton-fix arrangements, three-point linkages, and quick couplers.
• Parts lookup and shop tooling: Trilingual English/French/German tables give Case IH part numbers, descriptions, dimensions where applicable, and quantities by model. Group and unit indexes, a rear numerical index, and dedicated transmission, hydraulic, steering, engine, and Case-IH Test Centre tool listings support parts identification.

Configuration Details That Prevent Wrong Orders

The D358 complete-service-engine listings distinguish 956/956XL applications from engine number 140883 and 1056/1056XL applications from 156183. The VA injection-pump tables add earlier/later breaks at 134701/134702 for the 956 pair and 152309/152310 for the 1056 pair, while separate VE pump entries are assigned by model. Cooling pages also distinguish German Windhoff radiator applications from French Windhoff and Chausson versions. The July R1 transmission sheets separate speed-reducer and 40 km/h gearing from the other synchronized and non-synchronized range arrangements.

Model-specific quantity columns, optional-equipment notes, country restrictions, and "up to/from" serial notation continue throughout the book. The introduction also explains when advanced R suffixes supersede earlier part numbers. Those distinctions matter where similar-looking assemblies use different housings, gears, seals, brackets, or hardware.

Exploded Views, Indexes, and Tool References

Representative exploded-view titles include Complete Service Engines, Condenser and Radiator - Air Conditioning, Double Clutch "Fichtel and Sachs", Synchronized Range Gears, Pneumatic Trailer Brake (One and Two Circuit), and Sensodraulic Pipes and Valves. Illustration reference numbers lead to the following parts table; they are not order numbers. The catalog specifically directs the user to order by the Case IH part number or description.

Group 1 also identifies special shop equipment, including steering pressure-check tool 3223677R1 and Case-IH Test Centre connector package 3221908R91, together with transmission pullers, engine fixtures, hydraulic repair-kit tools, test-pump connections, and gauges. The catalog warns that application-specific attaching parts must not be replaced with ordinary standard hardware; a generic fastener may not have the fit or duty intended for the joint and can compromise the attached assembly.

Parts-Catalog Scope

This is a parts catalog, not a service or repair manual. It does not provide step-by-step removal, overhaul, adjustment, or repair procedures; diagnostic fault charts; torque or clearance tables; hydraulic test instructions; electrical wiring diagrams; or refrigerant-service procedures. Use it to plan a repair, identify the correct components, and assemble a parts order, then follow the appropriate workshop information for repair sequences and settings. For hydraulic, brake, driveline, or air-conditioning work, isolate the tractor, support heavy components, and follow the applicable service procedure for stored-pressure or refrigerant hazards before disassembly.