New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Fuel & Air - Jets - Main Jets

523 products
Powersport Superstore is your go-to source for Fuel & Air - Jets - Main Jets and related parts. Shop our unbeatable selection of Main Jets with top-tier service, fast shipping, and great prices.
51% Off
Mikuni F4/042-75 Large Hex Main Jet (4/042) for VM & TM Carburetor - 75
$10.68
$10.68
$21.85
Large hex type used in most Mikuni Carburetors.
Mikuni FN100604-175 Large Round Main Jet (N100.604) for RS, HSR & TM Carburetor - 175
$29.18
$29.18
Large round main jet.
Mikuni N100604-130 Large Round Main Jet (N100.604) for RS, HSR & TM Carburetor - 130
$29.18
$29.18
Large round main jet.
Mikuni FN100604-137.5 Large Round Main Jet (N100.604) for RS, HSR & TM Carburetor - 137.5
$29.18
$29.18
Large round main jet.
Mikuni N102221-115 Small Round Main Jet (N102.221) for SBN Carburetor - 115
$29.18
$29.18
High speed jet for Super BN.
Mikuni 4/042-370 Large Hex Main Jet (4/042) for VM & TM Carburetor - 370
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni N102221-170 Small Round Main Jet (N102.221) for SBN Carburetor - 170
$29.18
$29.18
High speed jet for Super BN.
Mikuni N100604-180 Large Round Main Jet (N100.604) for RS, HSR & TM Carburetor - 180
$29.18
$29.18
Large round main jet.
Mikuni N102221-107.5 Small Round Main Jet (N102.221) for SBN Carburetor - 107.5
$29.18
$29.18
High speed jet for Super BN.
Mikuni N100604-120 Large Round Main Jet (N100.604) for RS, HSR & TM Carburetor - 120
$29.18
$29.18
Large round main jet.
Mikuni 4/042-600 Large Hex Main Jet (4/042) for VM & TM Carburetor - 600
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-110 Large Hex Main Jet (4/042) for VM & TM Carburetor - 110
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-60 Large Hex Main Jet (4/042) for VM & TM Carburetor - 60
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni F4/042-85 Large Hex Main Jet (4/042) for VM & TM Carburetor - 85
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-220 Large Hex Main Jet (4/042) for VM & TM Carburetor - 220
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-700 Large Hex Main Jet (4/042) for VM & TM Carburetor - 700
$30.41
$30.41
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-580 Large Hex Main Jet (4/042) for VM & TM Carburetor - 580
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Mikuni 4/042-230 Large Hex Main Jet (4/042) for VM & TM Carburetor - 230
$29.20
$29.20
Large hex type used in most Mikuni Carburetors.
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle