Model Spotlight

Case TV620B Compact Track Loader: Alpha-Series Vertical-Lift CTL

The Case TV620B is part of Case’s alpha-series TV (vertical-lift) compact track loader range — Tier 4 Final compact diesel, hydrostatic dual-path drive on a tracked undercarriage, and the vertical-lift loader geometry that maximizes forward reach at full height. Best on truck-loading and stacking work where reach matters and ground pressure matters even more.

Broken Tractor Editorial Team• Updated May 2026• 8 min read

Where the TV620B fits in the Case skid steer / CTL line

The TV620B sits in Case’s alpha-series TV (vertical-lift) compact track loader range. Tracked undercarriage, vertical-lift loader geometry, Tier 4 Final aftertreatment. The TV designation marks the vertical-lift loader geometry that distinguishes the TV-series from the radial-lift TR-series CTLs.

Case TV620B Compact Track Loader - Quick Specs

Class: Compact Track Loader
Generation: TV (Alpha) Vertical-Lift
Engine: Tier 4 Final Compact Diesel
Aftertreatment: DPF + SCR (DEF)
Drivetrain: Hydrostatic Dual-Path
Undercarriage: Tracked
Lift Geometry: Vertical
Serial Plate: Right-hand lower track frame, near rear final drive

Locating your serial number On the Case TV620B the serial plate is on the right-hand side of the lower track frame, near the rear final-drive housing. Verify the serial before ordering year-specific parts — aftertreatment and undercarriage components saw revisions through the production run.

Engine, hydraulics, and drivetrain

The TV620B runs a Tier 4 Final compact diesel through a hydrostatic dual-path drivetrain on a tracked undercarriage. Loader hydraulics use a load-sensing piston pump with electrohydraulic control valves. Vertical-lift geometry keeps the bucket forward through the lift arc — best matched to truck-loading and stacking.

CTL undercarriage life is the largest single recurring cost on these machines. Sprocket, roller, idler, and chain monitoring matter more on a TV620B than on a wheeled skid steer counterpart — track tension and roller wear directly drive component replacement cycles.

Tier 4 Final aftertreatment - service implications The TV620B’s DPF and SCR systems require attention: DEF tank top-ups, periodic DPF regen cycles, NOx sensor service. Common-rail injection demands clean fuel and tight water-separator filtration — contaminated fuel ends Tier 4 injectors quickly.

Common service items on the TV620B

Engine internals: Tier 4 Final compact diesel pistons, rings, sleeves, bearings, gaskets. Common-rail high-pressure injection.
Tier 4 aftertreatment: DPF service intervals, DEF tank and dosing module, SCR catalyst, EGR cooler service.
Fuel system: Common-rail injectors, lift pump, very tight water-separator filtration.
Cooling system: Radiator, water pump, thermostat, fan, charge-air cooler, hoses, belts.
Hydraulics: Loader lift and bucket tilt cylinder seal kits (86570919 / 86570931 / 86570922 cross-fit on NH/Case alpha-series), piston-pump rebuilds, electrohydraulic control valves.
Drivetrain: Hydrostatic dual-path pumps and drive motors, charge pump, filters. CTL undercarriage adds track chains, sprockets, idlers, rollers.
Bucket coupler hardware: 47396814K bucket pin kit cross-fits L216–L230, C232–C238, SR160–SR250, SV185–SV300, TV380, TR270–TR340.
Hardware: 191048A2 axle stud & nut cross-fits broadly across the Case skid steer line.
Brakes / control: Park brake, control linkage, 48139268 control shock absorber on Case/NH alpha-series control valves.
Electrical / ECU: Engine ECU, machine controller, instrument cluster, sensors, wiring harness, telematics module.
Cab / operator station: Cab HVAC, seat, gauges, joystick controls, cab glass, 47405956 windshield wiper blade on cab-equipped units.

Parts we carry for the Case TV620B

Category	Common Parts	Browse
Engine	Tier 4 compact diesel internals	Browse Engine
Aftertreatment	DPF, DEF, SCR, EGR components	Browse Aftertreatment
Fuel System	Common-rail injectors, lift pump, filters	Browse Fuel
Cooling	Radiator, water pump, charge-air cooler, hoses	Browse Cooling
Hydraulics	Lift/tilt cylinder seal kits, piston pump, valves	86570919 Tilt Seal Kit
Drivetrain	Hydrostatic pumps/motors + CTL undercarriage	Browse Undercarriage
Bucket Coupler	47396814K bucket pin kit (cross-fits TV380, TR270-TR340, SR/SV/L/C alpha series)	47396814K Pin Kit
Brakes / Control	48139268 control shock absorber	48139268 Shock Absorber
Cab	47405956 wiper blade, HVAC, controls	47405956 Wiper Blade
Electrical / ECU	ECU, harness, instrument cluster, sensors	Browse Electrical
Operator Station	Seats, joysticks, cab glass	Browse Operator Station

Need a part for your Case TV620B Compact Track Loader?

Tier 4 aftertreatment, hydrostatic drive components, and CTL undercarriage are the highest-value items on a TV620B. Call our parts team with your serial number.

Request a Part

What to verify before ordering

Aftertreatment + undercarriage generation. Tier 4 Final aftertreatment configuration varies by build year; CTL undercarriage components saw revisions — confirm by serial.
Serial number. Confirm the serial on the Case TV620B before ordering year-specific parts.
Engine serial. Internal engine parts must match the engine serial number.
Hydraulic cylinder bore. Cylinder seal kit fit depends on bore dimension — measure before ordering.
Cab vs. ROPS canopy. Operator station equipment varied between configurations.

Why the TV620B still earns a paycheck

The Case TV620B is the alpha-series CTL that pairs vertical-lift loader geometry with a tracked undercarriage — flotation for soft material plus forward reach at full height. Truck-loading, stacking, and high-capacity material handling on soft ground are where the TV620B earns its keep.

Maintenance priorities on a TV620B: clean fuel and tight water separation, DPF regen behavior, hydrostatic charge pressure, and undercarriage wear monitoring (track tension, sprocket and roller wear, idler condition). Broken Tractor maintains parts coverage for the TV620B alongside the broader Case alpha-series skid steer and CTL family.