Welcome to Powersport Superstore. Since 2007 your first choice for Motorcycle, ATV, UTV, Jeep, Truck, Snowmobile and Personal Watercraft Parts, Accessories, and Apparel.

Sign up to be an Insider. As a member, you’ll unlock cash rewards, early access to new product drops, industry news, exclusive content, and special offers reserved for our inner circle. No public promos. No spam. Just perks for the people who live and breathe the ride. *Some restrictions apply.

K&L Supply 18-2794 Air Cut Off Valve Set

SKU: 4086826

K&L Supply 18-2794 Air Cut Off Valve Set

K&L Supply
$28.52
$28.52 $39.02
Sale Sold out
/
Shipping calculated at checkout.
In stock and ready for shipping
This is a pre order item. We will ship it when it comes in stock.
Heres an inexpensive kit as an alternative to the costly OEM assembly. To prevent afterburn generated by a lean fuel mixture when closing the throttle, the cut-off valve temporarily closes the slow-jet air passage, creating an instantly richer mixture. Included in these high quality kits are all parts necessary for a complete rebuild. (diaphragm, spring and O-ring). Made in Japan.

Vehicle Fitment:

1978 Honda CB400A Hondamatic
1978-1979 Honda CB400TI Hawk I
1978-1979 Honda CB400TII Hawk II
1979 Honda CM400A Hondamatic
1979 Honda CM400T
1978-1979 Honda CX500
1979 Honda CX500C Custom
1979 Honda CX500D Deluxe
1978-1979 Honda XL250S
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