HAND THROTTLE CABLE FOR JOHN DEERE AL76778

John Deere Manual Throttle Cable to Replace AL76778

The CAM199789 hand throttle cable is designed for mechanical control of engine speed on several John Deere machines. Mounted between the manual control in the cab and the engine-side control lever, it transmits the movement requested by the operator. This part number is provided as a replacement for AL76778; please verify the existing installation on the machine.

What is this hand throttle cable used for?

This part allows you to select an engine speed and maintain it without keeping your foot on the pedal. It is useful when the tractor is operating at a steady speed, such as when using the PTO, mulching, spraying, seeding, or when there is a steady demand for hydraulic power. If the cable catches, seizes up, or no longer transmits movement properly, the control becomes less precise and the return to idle may be disrupted.

Recommended applications for this part number

The CAM199789 is listed for numerous John Deere model series: the 6000, 6010, 6020, 6005, 6015, 6025, 6J, 7020, and 7025, as well as several SE versions. It is found in particular on tractors such as the 6100, 6310, 6320L, 6415, 6140J, 7220, 7420, and 7425. It is also listed for use on the 6810 forage harvester. A detailed list of models follows this description.

Useful Guidelines for Choosing the Right Cable

Before replacing an engine control cable, be sure to check the comparison part number AL76778, the shape of the ends, the sheath attachment points, and the original routing. Two cables that look similar may differ in their effective travel or in the type of connection on the cab side and the engine side. Checking the part number on the removed cable and verifying the exact machine identification remains the best way to avoid mistakes.

When should you consider replacement?

Replacement is warranted if the hand throttle becomes stiff, operates unevenly, no longer maintains the selected RPM properly, or fails to return to its normal position. A damaged sheath, a frayed cable, or a loose mounting can also interfere with the control. After installation, the cable must slide freely, without restriction, and allow for a clean return to idle according to the machine’s specified setting.

To verify this part number, compare the removed part, the corresponding part number, and the exact model of your John Deere before ordering.

Compatibility by Make and Series

John Deere · Forage Harvester

• 6810

John Deere · Tractor

• 6010
• 6010SE
• 6020SE
• 6100
• 6100SE
• 6110
• 6120
• 6140J
• 6200
• 6215
• 6300
• 6310
• 6310S
• 6320L
• 6320SE
• 6405
• 6415
• 6425
• 6506
• 6510
• 6510SE
• 6520
• 6520SE
• 6605
• 6615
• 6800
• 6810
• 6920SE
• 7220
• 7420
• 7425

John Deere

• Control Type
• Position
• Function
• Condition
• Cable CAM199789 may be suitable for the following models
• 6320
• SE6010
• SE6020
• SE6100
• SE6320
• SE6510
• SE6920
• There may be several variants depending on the year of production
• the engine
• The 6320L version must be precisely identified
• AL76778

John Deere · S Series

• 6005
• 6015 and 6025
• 7020 and 7025

John Deere · 6J Series

• Part CAM199789 can also be used on the

John Deere · 6000 Series

• 6100
• 6200
• 6300
• 6506
• 6800

John Deere · 6010 Series

• 6010
• 6110
• 6310
• 6510
• 6810

John Deere · 6020 Series

• 6120
• 6320
• 6520

John Deere · 6005 Series

• 6405
• 6605

John Deere · 6015 Series

• 6215
• 6415
• 6615

John Deere · 6025 Series

• 6425

John Deere · 7020 Series

• 7220
• 7420

John Deere · 7025 Series

• 7425
• SE Models
• SE6010
• SE6020
• SE6100
• SE6320
• SE6510
• SE6920

FAQ — Frequently Asked Questions

What does part number AL76778 refer to?

AL76778 is the cross-reference number associated with this hand throttle cable for John Deere applications. It is used to match the part to the original assembly, but verification must also be done based on the exact model, any variants, and the actual assembly installed on the machine.

Is this cable listed for a John Deere 6320L or 6140J?

Yes, CAM199789 is listed for the John Deere 6320L and 6140J. Since these models may vary by version or market, it is still important to verify part number AL76778 as well as the ends and mountings of the cable being removed before replacement.

What is the difference between the hand throttle and the foot throttle?

The hand throttle is used to maintain a selected engine speed for prolonged work, while the foot throttle allows for rapid adjustments during travel and maneuvering. On a tractor, both controls affect engine speed, but they are not used in the same context.

What signs indicate that a hand throttle cable needs to be replaced?

Replacement is necessary if the control becomes stiff, sticks, fails to hold the selected position, or no longer returns to idle normally. A damaged sheath, a frayed cable, or worn-out fasteners can also interfere with the precision of engine speed control.

Original replacement part numbers and brands are provided for comparison purposes only. This does not imply that these are genuine parts.