Model Spotlight

Case 480D Construction King: Specs, Parts & Common Issues

Produced 1980 through 1987 — the last 480-series Construction King to ship with the Case G188D 188-cubic-inch diesel as the catalog standard before the 480E moved up to the 207. Same chassis architecture as the 480C, both mechanical and power shuttle drivetrains, and the era where loader and backhoe pin and bushing wear became the dominant high-hour service line.

BT

Broken Tractor Editorial Team• Updated May 2026• 10 min read

The Case 480D ran from 1980 through 1987 and is the direct successor to the 480C in the Construction King 480-series lineage. The engine carries forward from the 480C — the Case G188D 188-cubic-inch four-cylinder diesel — and both the mechanical shuttle and the power shuttle drivetrains were offered. The 480D is the last 480-series machine to use the G188D as the catalog standard engine; the 480E that followed in 1987 moved the line up to the larger Case G207D 207 cubic-inch diesel.

This guide covers the verified specifications, where to find the serial number, the engine and drivetrain options, the G1 vs. G3 hydraulic piston identification that determines which seal kits fit your machine, the failure modes 480D owners report most often (power shuttle clutch wear and loader pin and bushing replacement lead the list), the parts we stock with confirmed 480D fitment, and how the 480D fits in the Case Construction King lineage between the 480C and the 480E.

At-a-glance specifications

Where to find the serial number plate

The 480D carries its tractor serial on a stamped data plate riveted to the left side of the tractor frame rail, just behind or under the left loader tower near the clutch housing. The engine serial is stamped separately on the left side of the engine block below the cylinder head, and the transmission case carries its own build code.

Production years

The Case 480D was produced from 1980 through 1987, when the 480E was introduced as its successor. The CNH Case prior-models brochure cites 1980 as the start year; the 1987 end year reflects the production overlap with the early 480E rollout.

A single, publicly authoritative Case-published year-by-serial table for the 480D is not in the open record. Mid-year running changes were common across the production run, and the most reliable approach is to read the serial off the frame plate and confirm the build year through a Case dealer database before ordering anything tied to engine, drivetrain, or brake internals.

Engine and powertrain

The 480D is powered by the Case G188D — a 188 cubic-inch, four-cylinder, naturally aspirated, indirect-injection diesel. Bore 3.81 in × stroke 4.13 in. Rated 52 HP gross / 47 HP net at 2,200 rpm. Fuel system is the Roosa Master / Stanadyne DB-series rotary injection pump carried forward from the 480C. The G188D had been the 480-series workhorse since the 480B, and the 480D is the last 480-line model to ship with it as the catalog standard.

Three transmission configurations were offered factory:

• 4F/4R synchronized mechanical shuttle — single 11-inch dry clutch, foot-operated shuttle lever, four gears forward and reverse.
• 8F/8R synchronized mechanical shuttle — same drivetrain with a two-range high-low overlay.
• Power shuttle — torque-converter coupled, hydraulically actuated forward and reverse clutch pack mounted on a 4-speed gearbox (the "torque tube" assembly). Forward and reverse engagement is hydraulic with no foot-pedal clutch action required for shifts.

The power shuttle was the popular option in 480D production and is the source of most documented drivetrain failures on the model. Mechanical shuttle and power shuttle share almost no service parts — identify which drivetrain your machine has before ordering shuttle components.

Loader and backhoe capacities

G1 vs. G3 hydraulic piston identification

The production transition from two-piece (split) hydraulic cylinder pistons to one-piece pistons that started on the 480C continues through the 480D run. Early-build 480Ds (1980 through early production) commonly carry two-piece G3 pistons that match late 480C parts; mid-production and later 480Ds shifted to one-piece G1 pistons that match the 480E. Seal kits are not interchangeable between the two designs.

Common problems documented by owners

The following failure modes reflect what 480D owners report most often. Diagnose in order before replacing major components.

Power shuttle forward clutch burn-up

The most-reported 480D failure. Symptoms: machine drives in reverse but drops out in forward (or vice versa), with metal and clutch material in the shuttle pan strainer. Root cause is almost always upstream — low Hytran fluid level, the wrong fluid used (engine oil run in the shuttle), or a plugged oil-cooler line starving the shuttle clutches of cooling and lubrication oil. Inspect the oil cooler line and the shuttle pan strainer before condemning the clutch pack. Repair requires splitting the torque tube; complete power-shuttle rebuild kits and individual friction/steel discs are in stock.

Loader and backhoe pin and bushing wear

On high-hour 480Ds the wallowed-out pin and bushing list grows long: lift cylinder rod-end pins, loader tower pivot pins, backhoe boom-to-dipper pin, bucket-link bushings, swing tower pins. Pin replacement is one of the most common parts orders on this model. Hardened replacement pins and bushings, including 480D-specific bucket links and bushings, are in stock.

Brake master and slave cylinder failure

The 480D uses hydraulically actuated bonded discs inside drum-style housings — the same fundamental brake architecture as the 480C. Common failures include sponge pedal that won't hold (master cylinder weeping), slave cylinder leaks, and bonded brake discs glazing from infrequent use. Pedals are mounted with the cylinders buried under the operator station, so service typically requires cab tilt or panel removal.

G188D engine fuel system fade

The Roosa Master / Stanadyne DB rotary injection pump on the G188D develops predictable failures over time: weeping internal seal kits at the mounting flange, lift-pump diaphragm failure, sticking delivery valves. Symptoms include hard starting, white smoke at idle, stalling 15–20 minutes after warm-up, and weak power under load. The R14711 seal kit reseals the pump; complete rebuilt pumps are also stocked.

Steering system wear

The 480D uses a Char-Lynn / orbital steering motor driving a hydraulic steering cylinder. Failures include lock-to-lock that won't reach end-stops (worn steering motor), valve centering issues after reseal, and cylinder rod weep at the wiper seal. Replacement steering motors, steering cylinders, and seal kits for the 480C/480D/580C family are all stocked.

Hydraulic cylinder leakage — and the seal kit gotcha

On 35-plus-year-old cylinders, rod chrome flaking and seal weep are routine. The G1 / G3 piston identification protocol described in section 6 applies — verify the gland nut stamp before ordering. Bucket, boom, swing, lift, and stabilizer seal kits and rebuilt cylinders for the 480D are stocked.

Differential and rear axle wear

Brake-side oil contamination from worn axle seals starves the differential bearings of lubrication. Symptoms: leakage on the brake side is the warning sign; differential noise and play follow. Spider gears, side gears, ring-and-pinion sets, and bearing/seal kits for the 480D rear axle family are in stock.

Cooling system age

Original radiators on a 1980–1987 machine are now 35-plus years old. Recore or replacement is common. G188D water pump bearings also fail at high hours.

Verified replacement parts

The following parts are in stock and confirmed to fit the 480D either by explicit description fitment or by inclusion in a 480D-specific category.

Browse by 480D-fit category

• Brakes — 480D, 480LL, 580D, 580 Super D, 584D, 585D
• Pins, Bushings & Links — 480D, 480E
• Hydraulic Cylinder Seal Kits — 480C, 480D, 480E, 480F
• Rear Axle & Differential — 480C, 480D, 580C, 580D
• Front Axle 2WD — 480C, 480D, 480E, 480F and family
• Case Backhoe Parts — full catalog

Maintenance schedule

Related Case Construction King models

The 480D sits between the 480C predecessor and the 480E successor in the Construction King 480-series lineage. Many drivetrain and rear axle parts cross with the 480C; pins, bushings, links, and several hydraulic cylinder parts cross with the 480E and 480F. The 580D is the heavier sibling produced over the same timeframe with the same chassis and drivetrain architecture.

Frequently asked questions

What years was the Case 480D made?

1980 through 1987. The 480E was introduced as the successor in 1987 with a larger 207 ci engine.

What engine is in a Case 480D?

The Case G188D — a 188 cubic-inch, four-cylinder, naturally aspirated diesel rated 52 HP gross at 2,200 rpm. This is the same engine carried over from the 480C.

Is the 480D engine 188 ci or 207 ci?

188 ci. The 207 ci G207D arrived on the 480E in 1987, not the 480D. Order G188D parts for the 480D unless you have direct evidence the engine has been swapped.

Does the 480D have a power shuttle?

Both options were offered. Synchronized mechanical shuttle (4F/4R or 8F/8R with a dry clutch) and power shuttle (hydraulic clutch pack with torque converter on the "torque tube") were both factory configurations. The power shuttle was the more popular factory configuration and is the source of most documented drivetrain failures. Identify which drivetrain you have before ordering — they share almost no service parts.

Does the 480D have wet-disc brakes?

No. The 480D uses hydraulically actuated bonded discs inside drum housings — the same fundamental brake architecture as the 480C, 480E, and 480F. True wet-disc multi-plate brakes appeared on the 580K-era Case backhoes but were never used on the 480-series.

How deep does the 480D backhoe dig?

12 feet with the standard backhoe attachment, or 14 feet with the Extendahoe.

What is the G1 vs. G3 stamp on Case cylinders?

G3 marks a two-piece (split) piston, common on early-production 480Ds. G1 marks a one-piece piston, common on mid-to-late production. The seal kits are not interchangeable — read the gland nut stamp on each cylinder before ordering.

Where is the serial number on a Case 480D?

Stamped on a data plate riveted to the left side of the tractor frame rail, under the left loader tower near the clutch housing. The engine serial is stamped separately on the left side of the engine block below the cylinder head.