Mercedes-Benz SL 107, W108 & W109 3.5-6.9 Automatic to Six Speed Manual Gearbox

This unit is designed to fit SL0 107, W108 & W109 3.5-6.9.

6 cylinder and V8 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 Mercedes Pagoda.

The Range has now expanded to cover V8 models. Offered is a complete transmission kit to perform a conversion. From shifting gate to the flywheel, reinforced clutch and propeller shaft, pedals mechanism and more.

We use the latest generation Getrag Gearbox that can Withstand upto 700Nm or torque in short intervals or a continuous load of 550Nm

Comes with 2 year warranty and no mileage limitation.

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

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)

Shift Pattern

R-1-3-5
    2-4-6

Gear Ratio's

1                     4,002

2                     2,108

3                     1,380 

4                     1,000

5                     0,780 

6                     0,645

Here is an overview of all the gearbox conversions available:

W108/109 280SE/L Limousine 3.5 engine M116 4 to 6 speed manual transmission, engine type M100 / 116

R107 SL / SLC, W108/109 280SE/L 3.5 to 6.3 automatic to manual 6 speed, engine type M100/116

W109 300SEL Red Pig 6.3

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.