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    • Koni Special D (Red) Shock 89-91 Avanti All - Front
    Sale!

    Koni Special D (Red) Shock 89-91 Avanti All - Front

    Vendor: KONI
    SKU: KON8040 1087
    Save $126.61
    Sale Price $122.83 Regular Price $249.44
    Fast Fulfillment: In-stock parts typically ship same day or next business day.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
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    Payments are processed through secure, encrypted payment systems. Your credit card information is transmitted directly to the payment processor and is never stored or accessible by us.

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    KONI Special 8040 series, red painted, internally rebound adjustable twin-tube low pressure gas charged shock absorber.

    This Part Fits:

    Year Make Model Submodel
    1989-1991 Avanti II Base
    1973-1975 Buick Apollo Base
    1975 Buick Apollo SR
    1971-1973 Buick Centurion Base
    1973-1977 Buick Century Base
    1975-1977 Buick Century Custom
    1976 Buick Century Indianapolis 500 Pace Car
    1973-1975 Buick Century Luxus
    1975-1977 Buick Century Special
    1971-1974,1976-1979 Buick Electra 225
    1971-1974 Buick Electra 225 Custom
    1974 Buick Electra 225 Limited
    1973 Buick Electra Base
    1975 Buick Electra Custom
    1980-1985 Buick Electra Estate Wagon
    1975-1984 Buick Electra Limited
    1978-1984 Buick Electra Park Avenue
    1971-1983 Buick Estate Wagon Base
    1973-1977 Buick Regal Base
    1976-1977 Buick Regal SR
    1971-1978 Buick Riviera Base
    1971 Buick Riviera Gran Sport
    1975 Buick Riviera GS
    1978 Buick Riviera LXXV Anniversary Edition
    1976 Buick Riviera Sport
    1976 Buick Riviera SR
    1992-1995 Buick Roadmaster Base
    1996 Buick Roadmaster Collector's Edition
    1992-1995 Buick Roadmaster Estate Wagon
    1996 Buick Roadmaster Estate Wagon Collector's Edition
    1992-1995 Buick Roadmaster Limited
    1996 Buick Roadmaster Limited Collector's Edition
    1970,1972 Buick Skylark 350
    1964-1972 Buick Skylark Base
    1968-1972 Buick Skylark Custom
    1968-1969 Buick Special Base
    1970-1972 Buick Sportwagon Base
    1977-1984 Cadillac DeVille Base
    1978-1984 Cadillac DeVille Cabriolet
    1977-1984 Cadillac DeVille d'Elegance
    1978-1979 Cadillac DeVille Phaeton
    1977 Cadillac Fleetwood 75
    1977 Cadillac Fleetwood 75 Formal
    1978-1984 Cadillac Fleetwood Base
    1977-1984 Cadillac Fleetwood Brougham
    1977-1984 Cadillac Fleetwood Brougham d'Elegance
    1977-1984 Cadillac Fleetwood Formal
    1976-1979 Cadillac Seville Base
    1978-1979 Cadillac Seville Elegante
    1977-1978 Cadillac Seville Opera
    1966-1972,1986-1992 Chevrolet Caprice Base
    1973-1995 Chevrolet Caprice Classic
    1986-1990 Chevrolet Caprice Classic Brougham
    1976-1978,1981-1982 Chevrolet Caprice Classic Estate
    1976-1981 Chevrolet Caprice Classic Landau
    1993-1994 Chevrolet Caprice Classic LS
    1987-1990 Chevrolet Caprice Classic LS Brougham
    1991-1993 Chevrolet Caprice Classic LTZ
    1975-1976,1979-1980 Chevrolet Caprice Classic Sport
    1973-1974 Chevrolet Caprice Estate
    1975 Chevrolet Caprice Estate Wagon
    1968 Chevrolet Chevelle 300
    1968-1969 Chevrolet Chevelle 300 Deluxe
    1970-1972 Chevrolet Chevelle Base
    1968-1972 Chevrolet Chevelle Concours
    1969-1972 Chevrolet Chevelle Concours Estate
    1973 Chevrolet Chevelle Deluxe
    1969-1972 Chevrolet Chevelle Greenbrier
    1973 Chevrolet Chevelle Laguna
    1973 Chevrolet Chevelle Laguna Estate
    1974-1976 Chevrolet Chevelle Laguna Type S-3
    1968-1977 Chevrolet Chevelle Malibu
    1974-1977 Chevrolet Chevelle Malibu Classic
    1974-1976 Chevrolet Chevelle Malibu Classic Estate
    1973 Chevrolet Chevelle Malibu Estate
    1968-1972 Chevrolet Chevelle Nomad
    1968 Chevrolet Chevelle Nomad Custom
    1971-1972 Chevrolet Chevelle SS
    1968-1970 Chevrolet Chevelle SS 396
    1968 Chevrolet Chevy II Nova
    1968-1977 Chevrolet El Camino Base
    1975-1977 Chevrolet El Camino Classic
    1977 Chevrolet El Camino Conquista
    1968-1974 Chevrolet El Camino Custom
    1968-1977 Chevrolet El Camino SS
    1977-1985 Chevrolet Impala Base
    1977 Chevrolet Impala Custom
    1981-1982 Chevrolet Impala Estate
    1977-1979 Chevrolet Impala Landau
    1979-1980 Chevrolet Impala Sport
    1994-1996 Chevrolet Impala SS
    1970-1974 Chevrolet Monte Carlo Base
    1973-1974,1976 Chevrolet Monte Carlo Landau
    1973,1975-1977 Chevrolet Monte Carlo S
    1969-1974 Chevrolet Nova Base
    1973-1974 Chevrolet Nova Custom
    1968-1971 Oldsmobile 442 Base
    1971-1974 Oldsmobile 98 Base
    1975-1981 Oldsmobile 98 Luxury
    1973-1984 Oldsmobile 98 Regency
    1982-1985 Oldsmobile 98 Regency Brougham
    1975,1977 Oldsmobile Cutlass 442
    1968-1975 Oldsmobile Cutlass Base
    1977 Oldsmobile Cutlass Colonnade
    1976-1977 Oldsmobile Cutlass Colonnade S
    1972 Oldsmobile Cutlass Cruiser
    1968,1971-1977 Oldsmobile Cutlass S
    1976-1977 Oldsmobile Cutlass Vista Cruiser
    1975-1977 Oldsmobile Cutlass Salon Base
    1968-1975 Oldsmobile Cutlass Supreme Base
    1977 Oldsmobile Cutlass Supreme Brougham
    1976-1977 Oldsmobile Cutlass Supreme Colonnade
    1975 Oldsmobile Cutlass Supreme Hurst
    1976 Oldsmobile Cutlass Tiara Base
    1971-1983 Oldsmobile Delta 88 Base
    1971 Oldsmobile Delta 88 Custom
    1980-1981 Oldsmobile Delta 88 Holiday
    1971-1985 Oldsmobile Delta 88 Royale
    1980-1985 Oldsmobile Delta 88 Royale Brougham
    1984-1985 Oldsmobile Delta 88 Royale Brougham LS
    1965-1981 Pontiac Bonneville Base
    1976-1981 Pontiac Bonneville Brougham
    1965-1970,1978-1981 Pontiac Bonneville Safari
    1965-1967 Pontiac Catalina 2+2
    1965-1981 Pontiac Catalina Base
    1971-1972 Pontiac Catalina Brougham
    1965-1981 Pontiac Catalina Safari
    1965-1970 Pontiac Catalina Ventura
    1973-1975 Pontiac Grand Am Base
    1975-1977 Pontiac Grand LeMans Base
    1975,1977 Pontiac Grand LeMans Safari
    1969-1974,1976-1977 Pontiac Grand Prix Base
    1975,1977 Pontiac Grand Prix LJ
    1975-1977 Pontiac Grand Prix SJ
    1967-1973 Pontiac GTO Base
    1970-1971 Pontiac GTO The Judge
    1968-1977 Pontiac LeMans Base
    1972-1974 Pontiac LeMans Luxury
    1969-1970,1973-1975,1977 Pontiac LeMans Safari
    1974 Pontiac LeMans Safari Luxury
    1970-1977 Pontiac LeMans Sport
    1971 Pontiac LeMans T37
    1983-1986 Pontiac Parisienne Base
    1983-1986 Pontiac Parisienne Brougham
    1968-1970 Pontiac Tempest Base
    1968-1969 Pontiac Tempest Custom
    1970 Pontiac Tempest GT
    1968-1969 Pontiac Tempest Safari
    1971-1974 Pontiac Ventura Base
    1973-1974 Pontiac Ventura Custom
    1974 Pontiac Ventura GTO
    Shipping Policy

    Last Updated: June 2026

    We're committed to getting your order to you as quickly and transparently as possible. Here's everything you need to know about how we ship.

    Order Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise noted on the product page.

    Orders placed on weekends or holidays will be processed on the next business day.

    Processing times are estimates and may vary during periods of high order volume, severe weather events, holidays, or circumstances beyond our control.

    Backordered Items & ETA Listings

    Some listings display an estimated ship date (ETA). These items are not in stock at the time of order and will not ship immediately.

    ETAs are provided by manufacturers and suppliers and are not guaranteed. Ship dates may change without notice.

    By placing an order for an ETA listing, you acknowledge and agree to the estimated timeframe displayed on the product page.

    If you need to cancel a backordered item, please refer to our Refund Policy for applicable cancellation fees.

    Order Cancellations

    Once an order is placed, cancellations are not guaranteed, as orders are sent to fulfillment quickly.

    If you need to cancel an order, contact us immediately at sales@berryperformancesales.com.

    If a cancellation is possible, applicable processing fees may apply in accordance with our Refund Policy.

    Orders that have already shipped cannot be cancelled and must go through our standard return process.

    Shipping Costs

    Shipping costs are calculated at checkout based on the shipping method selected, package weight and dimensions, and destination address.

    Available shipping options and costs will be displayed before you complete your purchase.

    Estimated Delivery Times

    Domestic orders typically arrive within 1–7 business days after shipment, depending on your location and the carrier.

    Delivery times are estimates only and are not guaranteed.

    Delays due to weather, carrier volume, customs processing, labor disruptions, or other circumstances beyond our control may occur.

    Tracking Information

    Once your order ships, you will receive a confirmation email with tracking information.

    If your tracking has not updated within 48 hours of receiving your shipping confirmation, please contact us.

    Shipping Address

    Please ensure your shipping address is accurate and complete before placing your order.

    If you need to update your address after placing an order, contact us immediately. We will do our best to accommodate your request, but address changes cannot be guaranteed once an order enters fulfillment.

    Berry Performance Sales is not responsible for orders shipped to incorrect or undeliverable addresses provided by the customer.

    We are unable to ship to P.O. Boxes. Please provide a physical delivery address at checkout.

    Signature Requirements

    Berry Performance Sales reserves the right to require an adult signature upon delivery for high-value orders.

    Freight Deliveries

    Freight shipments must be inspected at the time of delivery.

    Any visible damage, shortages, or discrepancies must be noted on the carrier's delivery receipt before signing.

    Failure to note damage or shortages at the time of delivery may limit or void the ability to file a freight damage claim.

    If your freight shipment arrives damaged, contact us within 48 hours of delivery.

    Lost or Stolen Packages

    If your tracking shows your order as delivered but you have not received it, please:

    • Check around your property and with neighbors
    • Confirm the shipping address on your order
    • Contact the carrier directly using your tracking number

    If the issue remains unresolved, contact us within 5 business days of the marked delivery date.

    We will work with you and the carrier to investigate the issue.

    Berry Performance Sales is not responsible for packages confirmed as delivered by the carrier or for packages lost or stolen after delivery.

    Refused or Undeliverable Shipments

    Orders refused by the recipient or returned due to an incorrect or undeliverable address are subject to all applicable return shipping charges, restocking fees, and processing fees outlined in our Refund Policy.

    International Shipping

    We ship internationally.

    International orders may require a custom shipping quote prior to purchase.

    To request a quote, contact sales@berryperformancesales.com with:

    • Your country and full delivery address
    • The item(s) you are interested in purchasing

    International customers are responsible for all customs duties, taxes, brokerage fees, import fees, and other charges imposed by their local government.

    These charges are not included in shipping quotes and are non-refundable.

    Questions?

    We're happy to help before, during, or after your purchase.

    Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Return Policy

    Last Updated: June 2026

    We want you to love what you ordered. If something isn't right, here's everything you need to know.

    30-Day Return Window

    You have 30 days from the date your order is shipped to initiate a return. After this window, we are unable to accept returns.

    We do not offer exchanges. All approved returns are refunded according to the terms below.

    How to Initiate a Return

    To request a return, contact us at sales@berryperformancesales.com with your order number and reason for return.

    All returns must be approved by our team before any item is shipped back to us.

    Once your return has been approved, your item must be shipped within 10 calendar days of approval. Valid tracking information must be provided upon request.

    Items shipped without prior approval, without verifiable tracking information upon request, or outside this window may be refused and returned to sender at the customer's expense.

    Return Conditions

    To be eligible for a return, items must be:

    • Unused and in original condition
    • In original packaging
    • Complete with all original parts, hardware, manuals, accessories, and promotional items

    The following items are not eligible for return:

    • Custom-ordered products
    • Programmers and tuners, unless brand new and factory sealed. Any unit that has been connected to a vehicle, registered, or used to flash a tune is not returnable, regardless of packaging condition
    • Open Box listings
    • Installed, modified, painted, coated, welded, cut, or otherwise used products
    • Items marked as Clearance, Closeout, or Final Sale

    Products sold as kits, complete systems, or bundled packages must be returned in their entirety. Partial returns are not accepted.

    Items that include promotional products, discounts, or free gifts must be returned with all included items. If any promotional item is not returned, its retail value may be deducted from the refund.

    We strongly recommend test-fitting all parts before installation, painting, coating, or modification.

    Labor costs, installation fees, tuning expenses, diagnostic charges, rental vehicles, towing fees, downtime, or any other incidental or consequential costs are not reimbursable under any circumstances.

    If you're unsure whether your item qualifies for return, contact us before purchasing.

    Once we receive your return, we will inspect the item before processing any refund. We reserve the right to deny a return or reduce the refund amount if the item is received in a condition that differs from what was originally shipped, including signs of use, missing parts, altered packaging, or damage that occurred after delivery.

    If a return is denied, the item will be shipped back to the customer at the customer's expense. We will attempt to contact the customer to arrange this. Denied returns left unclaimed after 30 days may be disposed of at our discretion.

    Fitment Responsibility

    Vehicle compatibility information is provided as a guide only and may not account for all modifications, trim levels, production changes, or custom applications.

    It is the customer's responsibility to verify fitment before ordering.

    Berry Performance Sales is not responsible for fitment issues resulting from vehicle modifications, engine swaps, aftermarket components, or inaccurate information provided at checkout.

    If you have questions regarding compatibility, please contact us before placing your order.

    Race Use & Off-Road Products

    Some products sold by Berry Performance Sales are intended for race use, off-road use, or closed-course competition only and may not be legal for use on public roads.

    It is the customer's responsibility to verify local, state, and federal regulations before installing or using these products on a street-driven vehicle.

    Berry Performance Sales is not responsible for fines, citations, emissions violations, or other legal consequences resulting from the use of race-only or off-road-only parts.

    Return Packaging Requirements

    Do not write on, tape directly to, or affix shipping labels to the manufacturer's packaging.

    Returned items must be shipped in an outer box or protective packaging sufficient to prevent damage during transit.

    Items returned with damaged, altered, or missing packaging may be subject to additional deductions or denial of the return.

    Customers are responsible for ensuring return packages are properly packed and delivered to us. We strongly recommend using a trackable and insured shipping service.

    Fees to Know Upfront

    We believe in being transparent about costs:

    • Restocking Fee: 20% — deducted from all approved return refunds
    • Return Shipping: Buyer's responsibility on all standard returns
    • Cancellation (Installment/Payment Plan): 7% fee to cover transaction costs
    • Cancellation (Credit Card/PayPal): 3.5% processing fee
    • Cancellation (Backordered Parts): 3.5% fee, regardless of payment method, to cover processing costs already incurred

    Damaged, Defective, or Incorrect Items

    If your order arrives damaged, defective, or incorrect, you must contact us within 48 hours of delivery at sales@berryperformancesales.com.

    Claims reported outside this window may not be eligible for resolution.

    When contacting us, please include:

    • Your order number
    • A description of the issue
    • Clear photos or video of the damage or defect

    Do not install, modify, or use a damaged, defective, or incorrect item. Installation or use of such items constitutes acceptance of the product's condition and may void eligibility for return, replacement, or warranty consideration.

    Items confirmed to be defective due to a manufacturing defect or fulfillment error will have return shipping costs covered by Berry Performance Sales.

    Manufacturer warranties are separate from our return policy and may require inspection, troubleshooting, or approval directly through the manufacturer.

    Refunds

    Once we receive and inspect your return, refunds are processed within 3–5 business days back to your original payment method.

    Original shipping charges, expedited shipping fees, freight charges, customs fees, duties, taxes, brokerage fees, and other non-refundable service costs are not eligible for reimbursement unless the return is the result of a verified fulfillment error by Berry Performance Sales.

    Refunds are issued only to the original payment method used at checkout.

    You'll receive a confirmation email once your refund has been issued.

    Payment Disputes

    If you experience an issue with your order, we ask that you contact us directly before initiating a chargeback or payment dispute.

    Most concerns can be resolved quickly through our customer support team.

    Questions?

    We're happy to help before, during, or after your purchase.

    Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    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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