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    • Needle & Seat Assembly 10 Pack of Part Number 6-504 Needle & Seat Assembly Adjustable 0.110 Seat Size Holley
    • Needle & Seat Assembly 10 Pack of Part Number 6-504 Needle & Seat Assembly Adjustable 0.110 Seat Size Holley
    • Needle & Seat Assembly 10 Pack of Part Number 6-504 Needle & Seat Assembly Adjustable 0.110 Seat Size Holley
    • Needle & Seat Assembly 10 Pack of Part Number 6-504 Needle & Seat Assembly Adjustable 0.110 Seat Size Holley
    Sale!

    Holley Needle & Seat Assembly, 0.110" Adjustable, 10-Pack | 1018-135

    Vendor: Holley
    Part Number: 1018-135
    Save $28
    Sale Price $218.95 Regular Price $246.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    This 10-pack of Holley needle and seat assemblies (P/N 6-504) features an adjustable 0.110" seat size for fine-tuning carburetor fuel level, with a Viton tip for consistent sealing.

    Specifications:

    • Contents: 10-pack of P/N 6-504 assemblies
    • Seat Size: Adjustable, 0.110"
    • Needle Length: 0.65"
    • Material: Brass
    • Tip: Viton
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 1018-135

    FAQ

    How many needle and seat assemblies are in the 1018-135 kit?

    It's a 10-pack of part number 6-504 assemblies.

    What seat size does this assembly use?

    An adjustable 0.110" seat size.

    What material is the tip made of?

    Viton, for consistent sealing against fuel.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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