Mercedes-Benz R107 300SL Automatic to Six Speed Manual Gearbox

This unit is designed to fit 300SL M103 engine models.

Mercedes Auto 3 and 4-speed transmission from the last third of a century are associated with power losses, consumption at high speeds and enormous wear and tear.

A few years ago, a gearbox was developed for the W113 and W111 with extra overdrive for the Mercedes-Benz Pagoda, suitable for their six-cylinder engines.

The range has now expanded to cover more six-cylinder models including the R107 with the M110 and M103 engines. Offered is a complete transmission kit to perform a conversion.

We use the latest generation Getrag Gearbox that can withstand up to 700Nm of torque in short intervals, or a continuous load of 550Nm.

The Gearbox comes with 2 year warranty and no mileage limitation.

All gearboxes are delivered in a secure wooden box.

Our pre-finished gear conversion kits contain the following necessary parts:

Kit contents:

• Sports transmission

• Flywheel

• Starter ring gear

• Clutch Kit

• Universal joint fitting

• Speedometer connection

• Pedals

• Slave cylinder

• Master Cylinder

• Console

• Shift linkage

• Gear lever

• Switch Ball

• Connection material

Shift Pattern

R-1-3-5
    2-4-6

Gear Ratios

1                     4,002

2                     2,108

3                     1,380 

4                     1,000

5                     0,780 

6                     0,645

Advantages of the transmission 5 plus- 1-speed

• Compact design, reduction in weight over original.
• Optimal tuning and synchronization
• More useable gear ratios
• Lower fuel consumption
• Simple installation, no modifications to the body required
• Plug and play (fully delivered and ready to install)

Here is an overview of all R107 gearbox conversions available:

R107 SL/SLC 4/5 speed manual to 6 speed manual transmission.

R107 SL/SLC automatic to manual 6 speed manual, engine M110/M103.

R107 SL/SLC V8 automatic to 6 speed manual, M116/117 engine.

Customer Reference 6-speed transmission

“I have converted my 230SL pagoda to the 6 speed gearbox because the old 4 speed transmission demanded such high RPM from the engine. I feared this may cause future issues for my SL and I wanted more out of the car. My local specialist installed the new 6-speed gearbox and it fitted perfectly. The installation was definitely worth it, driving the 230SL is really fun now! The engine now runs at an optimal speed range between 2000 and 4500 rpm. I will not reinstall the original gearbox for now and leave it in storage. Regards CLB”

Important Information

Due to the value of this product, we are only able to expect Bank Transfer this is to protect all parties involved with a high value shipment. Please select Bank Transfer as your payment option at checkout. Your order will be held, and we will contact you if any other form of payment is made.