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    • Wilwood Integral Reservoir Compact Master Cylinder, .70 in Bore, 1.40 in Stroke, 3/8-24 Outlet | 260-6579
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    Wilwood Integral Reservoir Compact Master Cylinder, .70 in Bore, 1.40 in Stroke, 3/8-24 Outlet | 260-6579

    Vendor: Wilwood
    Part Number: 260-6579
    Save $7.05
    Sale Price $88.07 Regular Price $95.12

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    Wilwood 260-6579 is a compact single outlet master cylinder with a .70 in bore and an integral 1.4 oz reservoir. The design is used for clutch actuation and other small master cylinder requirements. A plastic screw-on filler cap protects the fluid in the reservoir. The body is bare aluminum with a 1.40 in stroke and a 3/8-24 outlet.

    Notes:

    • This cylinder is offered in three bore sizes.

    Specifications:

    • Brand: Wilwood
    • Part Number: 260-6579
    • Type: Single Outlet
    • Bore Size: .70
    • Area (in²): 0.380
    • Stroke (in): 1.40
    • Volume (cu in): 0.53
    • Outlets: 1
    • Material: Aluminum
    • Finish: Bare
    • Reservoir Type: Integral
    • Reservoir Size (oz): 1.4
    • Reservoir Size (cu in): 2.57
    • Flange to End Length (in): 3.91"
    • Outlet Size: 3/8-24
    • Outlet Fit: 3/8-24 IF Female

    FAQ

    What bore size is Wilwood 260-6579?

    It has a .70 in bore with 0.380 in² of area, 1.40 in of stroke and 0.53 cu in of volume.

    Can it be used as a clutch master cylinder?

    Yes. This compact design is used for clutch actuation and for small brake master cylinder requirements.

    How large is the reservoir?

    The integral reservoir holds 1.4 oz (2.57 cu in) and has a plastic screw-on filler cap.

    What is the outlet size?

    It has a single 3/8-24 outlet with a 3/8-24 inverted flare female fit.

    How far does it extend past the mounting flange?

    It measures 3.91 in from the mounting flange to the end.

    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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