Holley Secondary Diaphragm Spring Kit, 7-Piece Assortment | 20-13
Available to order. In-stock orders typically ship in 1 to 2 business days.
Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
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This secondary diaphragm spring kit lets tuners change the opening rate of a Holley carburetor's secondary side, adjusting how aggressively the secondaries come in.
Specifications:
- Assortment Quantity: 7
- Spring Force: Assorted
- Wire Diameter: Assorted
- Length: Assorted
- Material: Steel
- Category: Air and Fuel Delivery
- Part Number: 20-13
FAQ
What does the 20-13 spring kit do?
It allows changing the rate of the secondary operating ranges on a Holley carburetor.
How many springs are included?
Seven, in an assortment of spring forces and wire diameters.
What material are the springs made from?
Steel.
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.
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.
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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