COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft

COGENG AH150678 John Deere Mower Deck Drive Belt Set

Product name: John Deere Belt Set

Part No: AH150678

Model Number:For  X300 Series, X500 Series, X700 Series

Material:Lron+Rubber

Packing:PP bag inside, carton box outside

Payment Terms:Western Union, L/C, T/T, MoneyGram, D/A, D/P

MOQ:Acceptable trial order

Shipping Mode:By air, by sea, by express(Fedex, UPS, DHL, TNT, etc.)

Place of Origin:Guangdong, China

Brand name: John Deere

  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft
  • COGENG AH150678   John Deere  Mower Deck Drive Belt Set,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG AH150678 John Deere Drive Belt – OEM Right Hand Jackshaft

Desciption

Technical Constants & Performance Data 

Parameter Value / Specification
OEM Part Number AH150678
Product Type Combine Right Hand Jackshaft Drive Belt
Belt Construction Aramid Fiber Reinforced / Kevlar®-Grade Tensile Cord
Rubber Compound Heat-Resistant EPDM / Heavy-Duty Neoprene Blend
Belt Profile Wrapped Construction with Fabric Cover
Cross Section C / B (Heavy-Duty Industrial)
Effective Length As per OEM specification
Tensile Strength High (Engineered for shock load resistance during harvest)
Temperature Range -30°F to 250°F (-34°C to 121°C)
Stretch Resistance Minimal (Pre-tensioned for stable performance)
Oil & Heat Resistance Enhanced for agricultural operating conditions
Application Right Hand Jackshaft Drive (Feeder House, Threshing, Cleaning Systems)
Manufacturing Standard Manufactured to meet or exceed John Deere OEM specifications

Decompose pictures

Maintenance & Service Guidelines 

Maintenance Item Recommendation
Inspection Frequency Inspect combine drive belts daily during harvest season or every 50 hours of operation for signs of wear, cracking, fraying, glazing, or oil damage
Tension Check Verify proper belt tension according to John Deere service manual specifications. Use a belt tension gauge for accurate measurement
Alignment Verification Check sheave (pulley) alignment when installing new belt. Misalignment causes premature belt wear and power loss
Sheave Inspection Inspect all sheaves (pulleys) for wear, grooves, rust, or damage. Worn sheaves will cause rapid belt failure and must be replaced
Belt Storage Store spare belts in a cool, dry place away from direct sunlight, ozone sources, and chemicals. Hang belts on wide hooks or lay flat to prevent kinking
Replacement Interval Replace at first signs of significant wear, cracking, or after 500-800 hours of operation to prevent unexpected field failure during harvest
Seasonal Preparation Before harvest season, inspect all drive belts and replace any showing signs of aging or wear to minimize downtime
Oil Contamination If belt becomes contaminated with oil or fuel, replace immediately. Oil causes rubber degradation and belt slippage

Safety & Handling Precautions

Safety Category Precaution / Instruction
Personal Protection Wear safety glasses, heavy-duty work gloves, and hearing protection when inspecting or replacing combine drive belts
Engine Shutdown Always shut off engine, remove ignition key, and wait for all moving parts to stop completely before inspecting or replacing drive belts
Lockout/Tagout Follow combine manufacturer lockout/tagout procedures to prevent accidental engine start or component movement during belt service
Wait for Cooling Allow engine and belt components to cool completely before handling to prevent burns from hot surfaces
Pinch Point Hazard Keep hands, fingers, and loose clothing clear of belt and sheave areas during installation and tensioning to prevent entanglement or crushing injuries
Proper Tools Use appropriate tools for belt tensioning and removal. Use belt tension gauge for accurate adjustment; over-tensioning damages bearings and shafts
Secure Machine When working on combine, park on level ground, engage parking brake, lower header to ground or use header stands, and chock wheels
Lifting Hazards Use proper lifting techniques or mechanical assistance when handling heavy belt tensioners or components
Belt Storage Do not kink, twist, or hang belts on sharp edges which can damage the tensile cord structure and cause premature failure
Disposal Dispose of worn belts in accordance with local regulations. Do not burn rubber belts as they may produce toxic fumes
Emergency Response For pinch or entanglement injuries, shut down equipment immediately. For eye injuries from debris, flush with water and seek immediate medical attention

Compatibility & Application Data

Application Compatible Equipment System Function
John Deere S Series Combines S660, S670, S680, S690, S760, S770, S780, S790 Right Hand Jackshaft Drive
John Deere T Series Combines T560, T570, T660, T670, T680, T690 Feeder House and Threshing Drive
John Deere W Series Combines W540, W550, W560, W570, W580 Right Hand Drive System
Harvesting Systems Feeder House Drive, Threshing Cylinder, Cleaning System Transfers power from engine to right side of combine
Critical Harvest Components Feeder House Chain, Threshing Rotor, Cleaning Fan, Sieve Drive Powers essential harvesting functions
Belt Cross Reference AH150678 Direct OEM Replacement

JOHN DEERE MOWER COMPATIBILITY
Compatible Mower Models

Series Model Deck Size Application
X300 Series X300 42" Residential
X304 42" Residential
X310 42" Residential
X320 48" Residential
X324 48" Residential
X340 48" Residential
X360 48" Residential
X500 Series X500 48" Commercial Residential
X530 48" Commercial Residential
X534 48" Commercial Residential
X540 48" Commercial Residential
X570 48" Commercial Residential
X580 48" Commercial Residential
X584 48" Commercial Residential
X590 48" Commercial Residential
X700 Series X710 48"/54" Commercial
X730 48"/54" Commercial
X734 48"/54" Commercial
X738 48"/54" Commercial
X739 48"/54" Commercial
X750 48"/54"/60" Commercial
X754 48"/54"/60" Commercial
X758 48"/54"/60" Commercial

Compatible Deck Sizes

Deck Size Compatibility Notes
42" Edge™ Deck X300 Series Yes
48" Deck X300, X500, X700 Series Yes
54" Deck X500, X700 Series Yes
60" Deck X700 Series Yes

Frequently Asked Questions
Q1: Which John Deere mower models use the TCA14778 drive belt set?

A: This belt set is designed for specific John Deere mower decks that require OEM part number TCA14778. Please check your mower model and deck size before ordering.

Q2: Is this an OEM or aftermarket belt set?
A: It is an OEM-grade replacement set, manufactured to meet or exceed original John Deere specifications for strength, flexibility, and wear resistance.

Q3: What is included in the COGENG TCA14778 belt set?
A: The set includes all drive belts required for the mower deck assembly – ready for direct replacement with no additional parts needed.

Q4: Are these belts durable for heavy-duty mowing conditions?
A: Yes, the belts are constructed with high-tensile cord and heat-resistant rubber compounds to withstand heavy grass, rough terrain, and extended use.

Q5: How do I purchase the COGENG TCA14778 mower deck drive belt set?
A: Contact us with your John Deere mower model and deck specifications for fitment confirmation, then order directly through our website or sales team for fast shipping.

Contact COGENG

📞 Phone: +86-185-2913-1515

📧 Email: hugo@cogeng.net

💬 WhatsApp +86-185-2913-1515

 💬 WeChat: +86-185-7865-1106

🌐 Website: cogeng.net

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