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9RX 640 Failure Story So Far… Pinion Gear Teeth Destroyed

9RX 640 Failure Story So Far… Pinion Gear Teeth Destroyed ZK MasterTech

21.7K views - 4 days ago

Replacing a Failed 12.5L — John Deere 9520 Complete Block Build

Replacing a Failed 12.5L — John Deere 9520 Complete Block Build ZK MasterTech

58K views - 4 weeks ago

Chasing Harvest Breakdowns | Service Calls Across Multiple Days (EP. 1)

Chasing Harvest Breakdowns | Service Calls Across Multiple Days (EP. 1) ZK MasterTech

30.9K views - 5 months ago

NFMS 2026 and S790 Repairs… Then the 9RX 640 Lost Rear Drive

NFMS 2026 and S790 Repairs… Then the 9RX 640 Lost Rear Drive ZK MasterTech

57.7K views - 1 week ago

Fuel Pump Failure, DEF Issues & X9 Breakdowns | Harvest Service Calls 2025 Ep. 3

Fuel Pump Failure, DEF Issues & X9 Breakdowns | Harvest Service Calls 2025 Ep. 3 ZK MasterTech

52.6K views - 5 months ago

The Most Optioned $1M John Deere X9 — Full Inspection

The Most Optioned $1M John Deere X9 — Full Inspection ZK MasterTech

32.4K views - 4 weeks ago

Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it!

Major Combine Repairs in the Heat of Harvest! Good ol' 70 Series combine, Got to love it! ZK MasterTech

65.6K views - 5 months ago

8RX 410 track, 9360R Radiator, X9 Issues & S780 Electrical Gremlins | Harvest 2025 Service Calls 4

8RX 410 track, 9360R Radiator, X9 Issues & S780 Electrical Gremlins | Harvest 2025 Service Calls 4 ZK MasterTech

47.6K views - 4 months ago

We Put It Back Together… Did This 9.0L Survive?

We Put It Back Together… Did This 9.0L Survive? ZK MasterTech

42.8K views - 1 month ago

Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure…

Hydraulic Nightmare! This John Deere 6300 Had ZERO Oil Pressure… ZK MasterTech

64.6K views - 2 weeks ago

Harvest service calls | Carnage | New Milwaukee Gen 3 high torque and 1 inch drive impacts!

Harvest service calls | Carnage | New Milwaukee Gen 3 high torque and 1 inch drive impacts! ZK MasterTech

135.1K views - 2 years ago

🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul!

🔧 Massive John Deere Repairs: 8400R Harness Headaches & 8360R ILS Overhaul! ZK MasterTech

110.7K views - 10 months ago

What Caused This S780 5 Speed Feeder House Gear Case Failure?

What Caused This S780 5 Speed Feeder House Gear Case Failure? ZK MasterTech

47.5K views - 3 weeks ago

This 80,000 LB Beast Is Powered by a John Deere 13.6L 💪🔥

This 80,000 LB Beast Is Powered by a John Deere 13.6L 💪🔥 ZK MasterTech

41.9K views - 11 months ago

S670 Engine REMOVAL & Tear-Down… You Won’t Believe What I Found Inside!

S670 Engine REMOVAL & Tear-Down… You Won’t Believe What I Found Inside! ZK MasterTech

102.2K views - 1 month ago

Oil Pressure Was “In Spec”… Then This 9520 Engine Destroyed Itself

Oil Pressure Was “In Spec”… Then This 9520 Engine Destroyed Itself ZK MasterTech

116.1K views - 1 month ago

John Deere 9510R tractor is down. Can I get it to run just a couple more days?

John Deere 9510R tractor is down. Can I get it to run just a couple more days? ZK MasterTech

200.1K views - 1 year ago

2023 RAM 5500 Service Truck Tour – Built to Work with Stellar T-Max Crane

2023 RAM 5500 Service Truck Tour – Built to Work with Stellar T-Max Crane ZK MasterTech

58.1K views - 1 year ago

Worst Equipment Carnage I've Ever Seen

Worst Equipment Carnage I've Ever Seen ZK MasterTech

91.2K views - 4 weeks ago

John Deere 9520R cranks but will not start.

John Deere 9520R cranks but will not start. ZK MasterTech

199.7K views - 2 years ago