Power Your Repairs With Genuine MultiFinish 440 Drive Assembly Parts
Shop replacement components for the Titan MultiFinish 440 Drive Assembly, including the main housing, slider, second-stage gear, thrust washer, crankshaft and gear assembly, motor, capacitor, cooling fan, motor baffle, brush kit, and mounting hardware. Use the exploded assembly drawing, item number, and exact Titan part number to identify the correct component before ordering.
01
Exploded-View Identification
Match each exploded-view callout with the exact part number shown in the MultiFinish 440 Drive Assembly listing.
Inspect mechanical, electrical, structural, cooling, and fastening components as one connected drive system.
Assembly Overview
What the MultiFinish 440 Drive Assembly Contains
The drive assembly contains the components that transfer electric-motor rotation into the reciprocating motion required by the pump. The diagram includes the 805-204A main housing, 0508208 slider assembly, 704-176 second-stage gear, 704-174 thrust washer, 704-173A crankshaft and gear assembly, 0558373A motor replacement assembly, capacitor components, motor baffle, cooling fan, wire connector, motor brush kit, and related fasteners.
Because the motor, gears, crankshaft, slider, housing, capacitor, brushes, and cooling components operate together, one worn part can create symptoms elsewhere in the drive. Grinding may originate at the gears or thrust surfaces, binding may involve slider alignment, and intermittent motor operation may involve brushes, wiring, or the capacitor. Inspect the complete drive path before selecting parts.
Main Functions
Functions Supported by the Drive Assembly
Transfers motor torque through the second-stage gear and crankshaft assembly.
Converts rotational movement into the reciprocating motion that operates the pump.
Supports and aligns moving components through the main housing, slider, and thrust washer.
Assists reliable motor starting and operation through the capacitor and brush components.
Directs cooling airflow and secures drive components with the fan, baffle, screws, and wiring hardware.
Service Applications
When Contractors Use This Parts Diagram
Grinding, knocking, vibration, or abnormal gearbox-noise diagnosis.
Jerky, binding, or incomplete pump-stroke repair.
Motor replacement after confirmed winding, armature, or structural motor failure.
Brush, capacitor, fan, baffle, housing, gear, washer, and mounting-hardware service.
Drive-section refurbishment for contractor, rental-fleet, and repair-shop equipment.
Troubleshooting & Maintenance
Common MultiFinish 440 Drive Assembly Symptoms
Use symptoms as a starting point, then inspect the related system and verify the exact replacement part through the assembly diagram.
These motor, housing, slider, gear, crankshaft, and brush components represent major drive-section repairs. Verify the diagram callout and exact part number before purchase.
Electric Drive Motor
Titan 0558373A Motor Replacement Assembly
The principal electric motor replacement for restoring rotational power after confirmed internal motor failure.
The crankshaft/gear assembly transforms rotational force from the motor into the linear motion needed to drive the pump piston, creating high pressure for airless spraying..
How to Order the Correct MultiFinish 440 Drive Assembly Part
Follow this sequence to reduce fitment mistakes and avoid replacing parts that are not responsible for the operating problem.
STEP 1
Record the drive symptom
Identify whether the concern involves fluid pressure, air delivery, electrical response, leakage, noise, mounting, or visible damage.
STEP 2
Verify model and revision
Confirm the Titan MultiFinish 440 identification and note any serial or revision information available on the equipment label.
STEP 3
Match the callout
Use the drive assembly illustration to match the numbered callout with the corresponding Titan part number.
STEP 4
Inspect the complete drive path
Check wiring, hoses, seals, mounting hardware, connectors, filters, and mating components before completing the repair order.
Preventive Care
Maintenance Practices That Protect the Drive Assembly
Relieve fluid pressure and disconnect electrical power before inspection or service.
Keep covers installed and clean to reduce dust, overspray, and debris entry.
Inspect siphon and bypass hoses for cracks, restrictions, loose connections, or coating buildup.
Check wiring, grounds, switches, circuit protection, and connectors for heat or physical damage.
Monitor gauge behavior and investigate sudden changes before continued operation.
Avoid operating the pump without material supply or with a restricted intake path.
Inspect mating components together whenever a major assembly is removed.
Complete Repair Planning
Build a More Complete MultiFinish 440 Drive Assembly Repair
Major drive repairs should include an inspection of every component connected to the failed part. When replacing the motor, inspect the brushes, capacitor, fan, baffle, wiring, mounting screws, housing, and mechanical load. When replacing a gear or crankshaft component, inspect the mating teeth, thrust washer, slider, lubrication points, and housing alignment.
Electrical drive repairs should include the capacitor, motor brushes, wire connections, motor leads, grounding points, cooling fan, and baffle. Replacing one failed component while leaving a damaged connector, worn mating gear, binding slider, or obstructed cooling path in service can cause repeat failure.
Fast Parts Navigation
Shop Major MultiFinish 440 Drive Assembly Components
Select a link below to review product details, then confirm the item number and part number against the drive assembly diagram.
These answers help contractors and repair technicians identify drive-system symptoms and select diagram-matched replacement components.
What does the MultiFinish 440 drive assembly do?+
It transfers rotational power from the electric motor through the gear train and crankshaft mechanism, creating the reciprocating motion that operates the pump.
Which parts should be checked when the drive grinds or knocks?+
Inspect the Titan 704-176 Second-Stage Gear, 704-173A crankshaft and gear assembly, 704-174 thrust washer, housing, and related mounting hardware.
What can cause jerky or binding pump movement?+
Inspect the Titan 0508208 Slider Assembly, crankshaft connection, housing alignment, lubrication condition, and whether the pump is placing excessive resistance on the drive.
When should the motor brush kit be inspected?+
Inspect the Titan 805-272 Motor Brush Kit when the motor starts intermittently, loses power, produces excessive sparking, or has confirmed brush wear.
What should be checked when the motor overheats?+
Check the 0512340 cooling fan, 805-352A motor baffle, ventilation passages, brush condition, wiring, and whether binding gears or pump resistance are overloading the motor.
Can the motor run while the pump remains stationary?+
Yes. A stripped gear, damaged crankshaft and gear assembly, disconnected slider, or failed connection between the drive and pump can allow motor operation without normal pump cycling.
Should the thrust washer be replaced with worn gears?+
Inspect the 704-174 thrust washer whenever the gear train is opened. Replace it when it is scored, distorted, excessively worn, or no longer maintains correct spacing.
Can I order a drive part by appearance alone?+
No. Similar motor, gear, housing, and electrical components can differ by model or revision. Match the exact diagram callout and Titan part number before ordering.
What safety steps are required before drive service?+
Relieve system pressure, disconnect electrical power, allow hot components to cool, secure the machine, and follow the applicable Titan service and safety procedures before disassembly.
Find the Correct Replacement Part
Service Your MultiFinish 440 With Diagram-Matched Drive Assembly Parts
Browse the parts listed on this page to locate the motor, housing, slider, gears, crankshaft, capacitor, cooling components, brush kit, wiring hardware, and fasteners. Verify the exact callout and part number before ordering.
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Titan part number
Drive assembly callout
Machine model & revision
Operating symptom
Component name
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