Turbocharger TB4129, RE19778 RE19779 | John Deere 6466A / Tractor 4040 4240 8430 4650 4840 8444 9220 9420 Engine

The Turbocharger TB4129, part numbers RE19778 and RE19779, is purpose-built for John Deere 6466A diesel engines powering heavy-duty agricultural tractors such as the 4040, 4240, 8430, 4650, 4840, 8444, 9220, and 9420 series.

This precision-engineered turbocharger is designed to deliver maximum air intake efficiency, resulting in improved horsepower, better fuel economy, and reduced emissions. The TB4129 turbo maintains OEM-grade reliability, making it ideal for farmers, engine rebuilders, and tractor restoration specialists seeking long-term dependability and performance.

Manufactured with a high-strength cast-iron turbine housing, precision-balanced compressor wheel, and heat-resistant bearings, it ensures optimal turbo response and endurance in demanding agricultural environments.

✅ Key Features:

• Turbo Model: TB4129

• OEM Part Numbers: RE19778 / RE19779

• Engine Compatibility: John Deere 6466A Diesel

• Vehicle Application: John Deere Tractor Models 4040, 4240, 8430, 4650, 4840, 8444, 9220, 9420

• Cooling System: Oil-cooled

• Condition: Brand New / OEM-spec Replacement

• Performance: Optimized boost for heavy-duty field operation

✅ Benefits:

• Restores original engine performance and torque output

• Improves overall fuel efficiency

• Reduces black smoke emissions

• OEM-grade fitment ensures hassle-free installation

• Precision balanced for long-term durability and reduced vibration

✅ Applications:

• Engines: John Deere 6466A

• Equipment: Tractors 4040, 4240, 8430, 4650, 4840, 8444, 9220, 9420

• Industry: Agriculture, Heavy-duty Machinery, Tractor Rebuild

Turbocharger TB4129, RE19778 RE19779 | John Deere 6466A / Tractor 4040 4240 8430 4650 4840 8444 9220 9420 Engine

Application: 4040, 4040S, 4240, 4240S, 4440, 4640, 4650, 466, 4840, 4850, 5720, 5820, 8100, 8200, 8300, 8400, 8430, 8444, 9120, 9220, 9320, 9420, 9520, 9620

OEM Number: RE19778, SE500256, RE19779, RE19780, AR83439, RE18989, AR101784, AR91131, AR63699, AR78121, AR78122, RE16964, RE41920, 408970-0003, 408970-0004, 408970-5004S, 408970-5003S, 4666085001S, 4089700003, 4089700004, 4089705004S, 4089705003S, RE19778, SE500256