Producers
- K2 (Melle)
- Kager
- Kale Oto Radyator
- KAMAZ
- Kamoka
- Kampol
- Kanaco
- KAP
- Kapimsan
- Kappa
- Karcher
- Kashiyama
- Kassbohrer
- Kautek
- Kavo Parts
- Kawasaki
- Kawe
- Kayaba
- KBC
- Kegel-Blazusiak
- Kemp
- Kennol
- Kenwood
- K+F
- Kicx
- Kilen
- Kimiko
- King
- King Roy
- Kitto
- K&K
- KKK Borgwarner
- Klarius
- Klaxcar France
- Klokkerholm
- KM Germany
- KM International
- K&N
- Knorr-Bremse
- Kobis
- Kogel
- Koito
- Kolbenschmidt
- Kolchuga
- Komatsu
- Koneks
- Koni
- Konner
- Koreastar
- Kormax
- Kortex
- KOS
- Koyo
- Koyorad
- Kraft Automotive
- Kraftiger
- Krauf
- KRD
- Kroner
- Kronprinz
- Kroon Oil
- Kross
- Kross Oil
- KSP
- KS Tools
- KTM/Husqvarna/GasGas
- KW
- KWP
- Kw Suspensions
- Kyosan