New Holland TN75S Supersteer Tractor Parts List (1998+) Parts Catalog (P/N 603144a1200)

Built around the New Holland TN75S SuperSteer tractor catalog marked 11/98-, this compiled illustrated parts-catalog set supports parts identification, fitment checks, and repair planning. Its figure-and-part-number format is suited to parts staff and mechanics who can match an option code and serial or build break before ordering. Each assembly is shown with an exploded illustration and a corresponding reference-number, quantity, and part-number list.

• Engine coverage traces the turbocharged diesel assemblies from the crankcase, cylinder head, crankshaft, pistons, connecting rods, and camshaft through fuel injection, turbocharging, lubrication, cooling, starter, and alternator parts.

• Drivetrain figures distinguish Power Shuttle, Hi-Lo, synchronized shuttle, splitter, and creeper transmission configurations, with separate clutch, gear-train, shifting-control, lubrication, rear-axle, differential-lock, brake, and PTO groups.

• Front-axle and steering content separates standard, low-profile, SuperSteer, and Terraglide layouts, including front-brake and differential-lock versions, axle supports, reduction gears, hubs, half shafts, steering pivots, cylinders, pumps, and lines.

• Hydraulic-system breakdowns cover pump and oil-cooler configurations, mechanical and electronic lift components, lift cylinders, remote valves, joystick controls, mid-mount lines and couplers, power steering, trailer-brake valves, and front-PTO lift equipment.

• Electrical and cab parts include cable sets, solenoid-valve wiring, switches, sensors, electronic lift control units, instrument-cluster breakdowns, digital cluster options, lighting, HVAC, ROPS, seats, steering-column components, and cab hardware.

• Nine separate loader catalogs add exploded parts coverage for mainframes, mounting kits, hydraulic plumbing and valves, lift and bucket cylinders, quick-attach devices, buckets, grille guards, forks, grapples, and third-function equipment.

Configuration and Serial-Break Detail

The three variation charts identify applicability across six TN-series D and S models rather than treating every option as universal. TN75S entries cover the North American configuration, 8x8 and 16x16 Power Shuttle versions, 32x16 Hi-Lo, creeper and splitter combinations, SuperSteer and Terraglide axles, electronic lift, multiple remote-valve arrangements, cab packages, PTO choices, regional builds, and several hitch and drawbar systems.

Parts selection is controlled at both figure and line-item level. Clutch groups change across C3937, D3937-C4737, and D4737 build breaks; transmission-lubrication parts split at C4712/D4712; and cab air-conditioning components split at C4665/D4665. Other entries use BSN/ASN serial thresholds. The catalog also flags NSS components that are not serviced separately and identifies repair-kit contents.

Representative exploded figures include the North American injection-pump group 0.14.0/1, Hi-Lo hydraulic gearbox controls in 1.28.7, SuperSteer and Terraglide axle assemblies in 1.40.1, electronic-lift switches, sensor, panel, and controller in 1.92.74/2, and loader cylinder and control-valve breakdowns. The North American emissionized injection pump is specifically identified as tamper-proof and routed to an authorized fuel-injection pump distributor for service.

PDF Makeup and Included Catalogs

2,874 PDF pages total: TN75S SuperSteer tractor, 1,939 pages; 32LA Farm Loader (1/99-), 55; 33LA Farm Loader (11/98-), 57; 46LB AG Loader (11/02-), 43; 52LA Farm Loader (5/99-), 58; 7210-Series Quick Attach Farm Loaders (2/83-), 165; 7310 Quick Attach Farm Loader (10/93-), 94; 7312 Quick Attach Farm Loader (4/96-), 170; 7314 Quick Attach Farm Loader (4/96-), 148; and 7511 Farm Loader (2/98-), 117. The remaining 28 pages consist of a cover, figure-search instructions, blank section dividers, and a common abbreviation and metric/inch hardware appendix.

Inclusion of a loader catalog does not establish that every loader or mounting kit fits every TN75S. Match the loader model, series, mounting-kit application, and tractor configuration before ordering.

Parts-Catalog Scope

This is an illustrated parts catalog, not a service or repair manual. It does not provide removal and installation sequences, overhaul instructions, hydraulic pressure tests, torque tables, wear limits, calibration procedures, or electrical diagnostic values. The electrical pages are exploded parts and wiring-component identification views rather than circuit diagrams, connector pinouts, or troubleshooting charts. Use the correct service manual for repair procedures, supported lifting, hydraulic pressure release, and drivetrain or axle disassembly.

The hardware appendix limits metric/inch substitution to certain punched or drilled mounting holes, not tapped holes or mismatched nuts and bolts; treating those fasteners as interchangeable can damage threads. In the 7210 loader section, adapter SML410541 is specified only for 7/8-14 JIC oil lines, so the fitting standard must be matched to protect the threads and sealing surfaces.