Carburetor Main Jets

Genuine Mikuni 4/042 Main Jets #420 – 4-Pack

$ 5.20

In stock

Part #: KM4042420

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Genuine Mikuni 4/042 Main Jets #420 – 4-Pack

Additional information

Weight	0.05 lbs
Part Number	KM4042420
Punctuated Part Number	KM4042420
Vendor Part Number	4/042420
Vendor Punctuated Part Number	4/042-420
Commodity Code	1006
Commodity Group	CARBURETION-FUEL GROUP
Commodity Type	CARBURETOR MAIN JETS

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Product Description

MIKUNI Genuine Mikuni 4/042 Main Jets #420 – 4-Pack

Key Features

Fit Mikuni carburetors VM18 (clamp on), VM24-512, VM26-512, VM26-606, TMX Series and others that originally came with 4/042 main jets
Also fit several OE applications; check dimensions before ordering
Made in Japan

Technical Specifications

Weight: 0.05 lbs
Supplier Number: 4/042-420
Unit of Measure: 4 Pack

Current Warehouse Inventory

Stock by Location:

✓ Janesville, WI: 20 units
✗ Batavia, NY: 0 units
✗ Dallas, TX: 0 units
✗ Fresno, CA: 0 units
✗ Reno, NV: 0 units
✗ Asheville, NC: 0 units
✓ National: 20 units

Total Available: 40 units

Inventory Last Checked: December 4, 2025 at 1:00 AM UTC

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Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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