20-13 Holley Sec.Diaphragm Spring Kit
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20-13 Holley Sec.Diaphragm Spring Kit
Unlock the true potential of your carburetor with the 20-13 Holley Sec.Diaphragm Spring Kit. Engineered for enthusiasts who demand peak performance, this kit is the perfect upgrade for your 4150 and 4160 vacuum-activated secondary carburetors.
Key Features:
- Compatibility: Specifically designed for 4150 and 4160 vacuum-activated secondary carburetors.
- Variety of Springs: Includes a set of 7 diaphragm springs, ranging from lightest to heavy load variations.
- Color-coded Identification: Easily distinguish between spring loads with our clear color-coding system: White, Yellow, Purple, Plain, Brown, and Black.
Benefits:
- Enhanced Performance: Optimize your carburetor's vacuum secondary system for improved throttle response and acceleration.
- Customization: Tailor the load to suit your specific performance needs, ensuring peak efficiency.
- Peace of Mind: Backed by a limited 90-day warranty for added assurance.
Use Cases:
Whether you're a weekend warrior or a seasoned racer, the 20-13 Holley Sec.Diaphragm Spring Kit is designed to meet your needs. Perfect for:
- Performance upgrades in classic cars.
- Tuning for competitive racing applications.
- Restoration projects requiring enhanced carburetor functionality.
Upgrade your carburetor's performance and reliability with the 20-13 Holley Sec.Diaphragm Spring Kit today!
Shipping & Returns
Shipping & Returns
Shipping:
Most qualifying in-stock orders are processed within one business day. In the contiguous 48 states, eligible in-stock orders placed before 12:00 PM (noon) in the customer's local time zone typically ship the same business day. Orders shipping to Alaska or Hawaii use a 12:00 PM Pacific Time cutoff (California time). These cutoffs apply only to eligible in-stock orders and are not guaranteed shipping or delivery times. Same-day shipping refers to processing and carrier handoff, not delivery. Weekends and holidays are excluded.
Payment verification, address verification, fraud review, and inventory availability may take longer. Supplier-direct fulfillment, freight shipping, and special handling may also take longer.
Returns:
Eligible products may be returned within 60 days of delivery, subject to our Return Policy. Return authorization is required. Certain products are final sale or subject to manufacturer warranty procedures, shipping charges, and applicable restocking fees.
Please inspect your order promptly upon delivery. Shipping damage, incorrect items, missing components, or quantity shortages must be reported within 3 business days after delivery. Retain the product, original packaging, shipping labels, and photographs while your claim is reviewed.

