Bobcat Spindle Bobcat 4179055 ProCat FastCat Predator-Pro Aluminum Silver

Bobcat Spindle Bobcat 4179055 ProCat FastCat Predator-Pro Aluminum Silver.

Restore Precision Blade Balance & Eliminate Deck Vibration: Genuine Bobcat Spindle

Eliminate violent deck shaking, thrown drive belts, uneven lawn striping, bearing whine, and blade height deflection on your commercial zero-turn mower. This Genuine Bobcat Factory OEM Spindle Assembly (Part Number 4179055) is the authentic commercial-grade blade drive hub assembly engineered explicitly for Bobcat / BOB-CAT commercial zero-turn mowers, stand-ons, and walk-behind platforms (including ProCat, FastCat, Predator-Pro, and QuickCat models across 36" to 72" commercial decks) . Running a commercial mower with bent spindle shafts or wobbling bearings ruins cut quality, damages high-dollar spindle pulleys, and leads to costly mid-route breakdowns.

Manufactured in the USA to Bobcat’s commercial turf specifications, this heavy-duty spindle features a rugged, reinforced cast housing engineered with wide-flange mounting gussets to withstand severe blade impact shock without cracking. The precision-machined, induction-hardened alloy steel center shaft is paired with premium deep-groove commercial bearings packed with high-temperature synthetic grease to ensure smooth rotation under sustained high-RPM cutting loads. Engineered for drop-in alignment, it seats cleanly onto factory fabricated deck shells, maintaining precise blade level across the entire cutting chamber.

This authentic factory replacement component is cataloged under Bobcat OEM Part Number 4179055 (Spindle Assembly / Cutter Deck Spindle Complete / Blade Drive Housing Assembly) .

Why This Genuine Bobcat 4179055 OEM Spindle Assembly is the Pro Standard:

100% Genuine Factory OEM Component: Engineered to exact Bobcat commercial tolerances for true concentric rotation and zero shaft wobble.

Induction-Hardened Alloy Steel Shaft: Resists bending and torsional fatigue caused by high-impact obstacle strikes and heavy scalping.

High-Load Commercial Bearings: Sealed, heavy-duty bearings withstand sustained centrifugal heat and prevent grease liquefaction during 8-hour mowing shifts.

Reinforced Shock-Resistant Flange: Heavy-wall cast housing with gusseted mounting ears absorbs vibration and distributes ground impact loads across the deck.

Restores Crisp Commercial Cut Quality: Guarantees flat, level blade rotation to eliminate stepped cut lines and jagged turf tearing across wide acreage.

Technical Specifications:

Brand: Genuine Bobcat / BOB-CAT (OEM Factory Original)

Part Number: 4179055

Component Type: Deck Blade Spindle Hub Assembly Complete

Application Location: Commercial Fabricated Mower Cutting Decks (Center, Left, or Right Spindle Positions)

Housing Material: Heavy-Duty High-Tensile Cast Alloy

Shaft Material: Precision-Ground Induction-Hardened High-Carbon Alloy Steel

Hardware & Fittings: Factory threaded top nut, blade bolt, and mounting hardware (as pictured)

Condition: Brand New in Official Factory Packaging

Guaranteed Equipment Model Compatibility Matrix:

Specifically engineered for direct fitment across Bobcat / BOB-CAT commercial mowing platforms:

Bobcat / BOB-CAT Commercial Zero-Turn Mowers:

Fits Bobcat ProCat Series (Commercial zero-turn mowers with 48", 52", and 61" decks).

Fits Bobcat Predator-Pro Series (Heavy commercial 61" and 72" platforms).

Fits Bobcat FastCat / FastCat Pro Series (36", 42", 48", and 52" models).

Fits Bobcat QuickCat Series (Stand-on commercial mowers).

Fits Bobcat Hydro Walk-Behind Commercial Mowers specifying part number 4179055.

Direct Application: Direct factory replacement for any Bobcat parts manual, deck schematic, or technical IPL specifying spindle assembly part number 4179055.

🛠️ Pro-Maintenance Tip: Watch the "Deck Flange Inspection & Blade Bolt Torque Secret!" Mounting Deck Inspection Secret: When unbolting your damaged spindle, carefully inspect the sheet metal of the mower deck shell around the mounting holes! If the previous spindle suffered a catastrophic blade strike, it can slightly warp or dish the deck steel. Use a straightedge across the mounting pad; if dished, tap the deck flat with a dead-blow hammer before torquing down the new 4179055 assembly. Installing a new spindle onto a warped deck pad puts lateral binding stress on the bearings, causing them to run hot and fail prematurely. Blade Torque Secret: Always use a calibrated torque wrench when tightening the lower blade bolt (typically 70–90 ft-lbs, per your specific model manual). Never blast blade bolts on with an uncontrolled impact gun, as over-torquing can stretch the spindle shaft threads, while under-torquing allows the blade to slip and spin on the shaft.

Specifications

• Type: Spindle
• Color: Silver
• Number in Pack: 1
• Model: Bobcat 4179055 ProCat FastCat Predator-Pro
• Material: Aluminum

Condition: New