| A | G | M | S | Y |
| B | H | N | T | Z |
| C | I | O | U | 1-10 |
| D | J | P | V | |
| E | K | Q | W | |
| F | L | R | X |
 QML |
 QSTEN |
 QUARTZ |
 QUATTRO FRENI |
QUICK STEER |
 QUICK BRAKE |
 QUINTON HAZELL |
UAZ |
 UFI |
UKORAUTO |
ULO |
UNICAR |
 UNICO FILTER |
UNICORN |
 UNIFLUX FILTERS |
 UNIGOM |
UNION |
 UNIPOINT |
 UNITED MOTORS |
UNIVERSAL |
 UPLUS |
URW |
US MOTOR WORKS |
USAG |
 UTM |
UXCLENT |
X2 |
XYG |
YAC |
 YADA |
YALE |
 YAMAHA |
 YAMATO |
YANMAR |
 YATO |
YAZUKA |
YEC |
 YENMAK |
 YIH SHENG |
YOKOMAHA |
YJT |
YPR |
YUASA |
 YUEJIN |
YUIL FILTER |
 YULIM |
YUMAK |
ZAFFO |
ZALA |
ZAZ |
ZEKKERT |
 ZEN |
 ZETEX |
 ZETRA |
ZEXEL |
 ZF |
 ZF PARTS |
ZF LENKSYSTEME |
 ZIC |
ZIKMAR |
ZIL |
 ZIMMERMANN |
ZIPOWER |
 ZM |
ZOLERT |
ZOMMER |
ZUBEHOR |
 ZZVF |
 1-56 (MARUICHI) |
1A FIRST AUTOMOTIVE |
 3F QUALITY/EOLO |
 3M |
3RG |
 3TON |
 4MAX |
4SEASONS |
 4U |
 555 |
888 |
