Generation 2 Sigma Shifter Parts Diagram

For legacy Sigma Shifter support, please email us at sales@dieselgeek.com. Clear photo(s) are super helpful. Please refer to the parts of your shifter by their figure number or true name as listed below. Generally these items are available unless noted.

CLICK HERE TO VIEW FULL SIZE PARTS PHOTO

The Gen 2 Sigma is characterized by a laser cut plate stainless steel front-to-back bracket. These shifters were offered from 2010 through 2023. There are a lot of these shifters out there and we are proud to support them.

Current Sigmas are Gen 3, characterized by a cast stainless steel front-to-back bracket. Gen 3 was sold beginning in 2024. Gen 1 Sigmas were made from modified VW factory linkages.

1. Bell Crank for MQ250 (MK5+ 5-speed only)

2. 8mm lock nut attaches front-to-back to selector shaft of transmission

3. Perfect Pivot side-to-side cable end inserts (Shifters sold 2021 and later)

4. 5mm alignment pin for locking the stick inside the cabin in the home position 

5. Shiny metal clip for cable end pin and pivot pin

6. Bell Crank for 5-speed MK4 and 6-speed

7. Pivot Pin for bell crank; slides into selector shaft housing on the transmission

8. 5/16-18 locknut for pivot pin. Select Short or Long based on how many threads protrude past bell crank face.

9. Cable End Pin

10. Slider Pin

11. #10-32 stainless screws for aluminum cable ends (1/2" for 2022+ or 3/4" for 2021 and earlier)

12. Nutbar compatible with all In-Line type cable ends

13. Pivot Pin Bushings 1J0711067L 

14. Slider 5 or 6 speed specific; must be matched to front to back plate thickness

15. Front-to-Back Assembly comprising Fig. 16, 17, 18, 19, & 21

16. Front-to-Back Bracket 3 thicknesses over the years: .261" .300" or .312" may be a stacked pair of plates or one single plate

17. Front-to-Back bolt attaches cable end to front-to-back bracket M8x30 (Sigma 6) or M8x50 (MQ250) or 5/16-18 (MK4 5-speed)

18. Spacer separates spherical bearing of cable end from front-to-back bracket

19. Front-to-Back Nut - M8 (Sigma 6 and MQ250) or 5/16-18 (MK4 5-speed)

20. M6 Bolt and Washer for opening In-Line cable ends <VIDEO>

21. Front-to-Back cable end The "Rectangle" bolt pattern version is current and replaces the earlier "In-Line" and "5-bolt" variants.

22. OE 'Square head' Cable End not included, required for Sigmas sold after 2021

23. Side-to-Side cable end Discontinued. Not available.

Early Sigma Install

LINK (6-speed)

LINK (5-speed)

Please note - the shifters with an aluminum side to side cable end are VERY difficult to readjust once all 4 bolts on the cable end are tightened so be 100% positive you have it adjusted PERFECTLY before snugging down the 4 side to side cable end bolts. 

We recommend tightening only the bolt closest to the end of the cable end, then performing the elevator test LINK to ensure you've got the shifter adjusted properly before finishing the install. 

If you need to go back and readjust after the initial install you'll need to spread the cable end as covered here LINK