1991 Case 1825 Bolt Sizes & Torque Specs

Lug nut torque is not verified for this summary. Review the cited evidence and exact hardware application before installation.

This page distinguishes source-backed fields, unresolved conflicts and unverified legacy records for the 1991 Case 1825. Match the exact hardware and manual conditions before maintenance. A source for one field does not verify the other specifications.

For the 1991 Case 1825, fasteners follow application-specific metric or SAE standards typical of 1990s-era Case engineering. Always confirm spec against the factory service manual before tightening safety-critical fasteners (suspension, brake, steering, head bolts).

Common fastener categories on the 1991 Case 1825

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket, mounting, and slide/guide-pin bolts are different fasteners. Confirm the exact axle, application and service-manual specification before reassembly.
Engine oil drain plug torque and tool size when this vehicle has a verified drain-plug record
Transmission pan, valve cover, and intake manifold bolts where the database has exact records
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque only when a vehicle-specific spark-plug row is available
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

Heads up for 1991 Case 1825 owners: Vehicles this age frequently have seized fasteners due to thread corrosion. Apply penetrating oil (PB Blaster, Kroil) 24 hours before any wrenching, and have a thread chaser on hand. Lug studs are particularly prone to thread damage at this age; if a nut spins on without engaging, the stud is stretched and must be replaced before the wheel goes back on.

Tools you will need

Metric and SAE socket set (8mm-22mm plus 1/4"-7/8"), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Replacement washers, threadlocker, anti-seize, or dry-thread preparation only when the exact service procedure specifies them

Frequently asked questions

What is the lug nut torque on a 1991 Case 1825?

Specification not verified for this lug nut summary. Do not substitute another model year's value.

What socket size do I need for the 1991 Case 1825 lug nuts?

Confirm the socket against the actual lug nut; no size is assumed here.

Are the 1991 Case 1825 fasteners metric or SAE?

Metric and SAE hardware can both appear on one vehicle, depending on the component and exact application. Use the individually verified field and the actual fastener or service manual rather than inferring a standard from the model year, make or generation. Bolt-head markings can help identify the hardware at the bench.

Other Case 1825 years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 1991 Case 1825 oil drain plug torque & size

29 recorded 1991 Case 1825 fasteners

Per-field evidence and legacy records for the 1991 Case 1825. A verified torque does not verify socket size, thread or part number. Unverified records are not installation instructions; conflicting specifications are withheld.

Engine — 1991 Case 1825

Engine fastener records and field evidence for the 1991 Case 1825. Injection Pump Bolt (Engine Block). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Oil Drain Plug (Oil Pan). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Valve Cover Bolt (Valve Cover). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Fan Pulley Bolt (Crankshaft). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Body — 1991 Case 1825

Body fasteners on the 1991 Case 1825. Door Hinge Bolt (Cab Frame). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. ROPS Bolt (Frame). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Seat Base Bolt (Floor). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Belly Pan Bolt (Frame). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Electrical — 1991 Case 1825

Electrical fasteners on the 1991 Case 1825. Alternator B+ Terminal Nut (Alternator). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Starter Support Bracket Bolt (Block/Transmission). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Starter Heat Shield Bolt (Starter Body). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Idler Pulley Bolt (Bracket). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Starter B+ Terminal Nut (Starter). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Belt Tensioner Pivot Bolt (Block). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Alternator Terminal Nut (Alternator). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Belt Tensioner Lock Bolt (Tensioner Body). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Alternator Ground Strap Bolt (Block). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Starter Solenoid Terminal Nut (Solenoid). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Starter Ground Strap Bolt (Block). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Hydraulic — 1991 Case 1825

Hydraulic fasteners on the 1991 Case 1825. Control Valve Bolt (Valve Block). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Hydraulic Pump Bolt (Pump Mount). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Hydraulic Line Fitting (Various). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Hydraulic Motor Bolt (Motor Mount). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Loader — 1991 Case 1825

Loader fasteners on the 1991 Case 1825. Quick Attach Pin (Attachment Plate). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Loader Arm Pivot Pin (Frame). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Bucket Pivot Pin (Loader Arms). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Cylinder Pin Lock (Cylinder End). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Drive — 1991 Case 1825

Drive fasteners on the 1991 Case 1825. Chain Case Cover Bolt (Chain Case). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Drive Motor Bolt (Chain Case). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then compare any source-backed fields on this page with the actual hardware and service manual.

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