JET 360 BRASS MIKUNI4/042
JET 360 BRASS MIKUNI4/042 Main Jet. Sold Each. 6mm HEX. Fits Mikuni carburetors VM TM TMX Series and others that originally came with 4/042 main jets. Also fits several OE applications; check dimensions before ordering. Overall length 11.5mm, thread diameter 5.2mm, thread pitch 5.25 x 0.9. Manufactured by Factory Image Racing.
- SKU
- 27-136
- Brand
- Factory Image Racing
- Availability
- In Stock (49)
FULL DESCRIPTION
Mikuni Brass Main Jet 4/042
This is a brass main jet designed for Mikuni carburetors. It features a 6mm hex head and is identified by the designation 4/042. Each jet is sold individually.
Key Features:
- Material: Brass
- Designation: MIKUNI 4/042
- Head Size: 6mm Hex
- Overall Length: 11.5mm
- Thread Diameter: 5.2mm
- Thread Pitch: 5.25 x 0.9
This jet is compatible with Mikuni VM, TM, and TMX series carburetors. It is specifically designed to fit models such as VM18 (clamp on), VM24-512, VM26-512, VM26-606, TMX Series, and other applications originally equipped with 4/042 main jets.
It may also fit several original equipment (OE) applications. Please verify dimensions before ordering to ensure proper fitment.


