Monroe

Magnum OE Replacement Shocks

66683
$79.99

Out of Stock
Monroe

Magnum OE Replacement Shocks

66683
$79.99

Out of Stock
Authorized dealer
Free shipping on orders above $250 within the lower 48 United States
Brand new parts with warranty coverage
Free 30-day return and exchange on qualifying orders
Got Questions?
Our experts are here to help!
Part Numbers & Details
1 Shock Absorber
Package contains a single shock.
Monroe Limited Lifetime Warranty
Manufacturer provided lifetime warranty and exclusive Feel the Difference Guarantee.
Factory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation.
Designed for Trucks and Vans
Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
Heavy Duty Build
Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
Nitrogen gas charge
Maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
Specifications
Part NumberItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
66683Shock Absorber124.07"15.31"8.76"EYELET/SLEEVEEYELET/SLEEVE
Product Details

Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

Compatibility List
YearMakeModelDrivePosition
1993GMCW5500 ForwardFront
2016Ic corporationRE School BusRear
2015Ic corporationRE School BusRear
2014Ic corporationRE School BusRear
2013Ic corporationRE School BusRear
2012Ic corporationRE School BusRear
2011Ic corporationRE School BusRear
2010Ic corporationRE School BusRear
2009Ic corporationRE School BusRear
2008Ic corporationRE School BusRear
2007Ic corporationRE School BusRear
2006Ic corporationRE School BusRear
2005Ic corporationRE School BusRear
2004Ic corporationRE School BusRear
2003Ic corporationRE School BusRear
1992International1452SCRear
1991International1452SCRear
1990International1452SCRear
1989International1452SCRear
1988International1452SCRear
1987International1452SCRear
1992International1652SCRear
1991International1652SCRear
1990International1652SCRear
1989International1652SCRear
1988International1652SCRear
1987International1652SCRear
1986International1652SCRear
1988International1654Rear
1987International1654Rear
1986International1654Rear
1985International1654Rear
1984International1654Rear
1983International1654Rear
1982International1654Rear
1981International1654Rear
1980International1654Rear
1994International3700Rear
1993International3700Rear
1992International3700Rear
1991International3700Rear
1990International3700Rear
2004International3800Rear
2003International3800Rear
2002International3800Rear
2001International3800Rear
2000International3800Rear
1999International3800Rear
1998International3800Rear
1997International3800Rear
1996International3800Rear
1995International3800Rear
1994International3800Rear
1993International3800Rear
1992International3800Rear
1991International3800Rear
1990International3800Rear
1989International3800Rear
1988International3800Rear
1987International3800Rear
2013International4300LPRear
2013International4400LPRear
1994International4600LPRear
1993International4600LPRear
1992International4600LPRear
1991International4600LPRear
1990International4600LPRear
2002International4700LPRear
2001International4700LPRear
2000International4700LPRear
1999International4700LPRear
1998International4700LPRear
1997International4700LPRear
1996International4700LPRear
1995International4700LPRear
1994International4700LPRear
1993International4700LPRear
1992International4700LPRear
1991International4700LPRear
1990International4700LPRear
1999International9300Rear
1998International9300Rear
1997International9300Rear
1996International9300Rear
1995International9300Rear
1994International9300Rear
1993International9300Rear
1992International9300Rear
1991International9300Rear
1990International9300Rear
1989International9300Rear
1999International9400Rear
1998International9400Rear
1997International9400Rear
1996International9400Rear
1995International9400Rear
1994International9400Rear
1993International9400Rear
1992International9400Rear
1991International9400Rear
1990International9400Rear

Monroe Manufacturer's Warranty

DRiV warrants qualifying Monroe products against defects and wear-out when used on private passenger cars and light trucks under normal operating conditions, for as long as such original purchaser owns the vehicle on which they were originally installed.

Qualifying Products

  • Monroe OESpectrum shocks and struts
  • Monroe Reflex shocks and struts
  • Monroe Quick-Strut assembly
  • Monroe Gas-Magnum shocks
  • Monroe Magnum loaded strut assembly
  • DRiV's obligation under this warranty is limited to replacement of the worn-out or defective product in accordance with this warranty. Cost of removal and installation are not included, and any incidental and consequential damages are excluded under this warranty, regardless of when the failure occurs. This warranty has no cash value.

    To make a claim under this warranty, return the worn-out or defective product with the dated original receipt to the dealer or retailer from whom it was purchased.

    This warranty does not apply to purchases made through unauthorized retailers/dealers including unauthorized online sellers. DRiV has no way to confirm the authenticity and quality of products sold through unauthorized resellers and is not obligated to honor warranty claims when purchased from an unauthorized individual, unauthorized retailer/dealer, or unauthorized online retailer. Purchases made through auction sites, marketplaces, private or third-party sales, or other unauthorized online retailers are not eligible for warranty.

    This warranty does not apply to: (i) any other costs, including costs of removal, installation, diagnostic time, and any other expenses arising out of replacing the product (ii) products which have been installed on non-catalogued applications; (iii) products that are new, unused or show signs of normal wear but not defective; (iv) products which have been misused, modified, altered, improperly applied or installed; (v) product damaged in an accident or by fire, weather, or any other force majeure event or hazard; (vi) products which have been installed on vehicles used for commercial, fleet, Governmental or racing purposes or damaged due to vehicle modifications; (vii) obsolete parts no longer available from DRiV; (viii) product that has been transferred from the vehicle on which it was originally installed; (ix) non-geniune DRiV branded product or competitive parts; and (x) products installed on vehicles that have been modified outside the specifications of the vehicle’s original equipment manufacturer, including but not limited to aftermarket modifications for racing, off-road, or powersports purposes.

    DRiV will not accept any returns and is not responsible for any claims related to circumstances and products described in the preceding sentence. All warranties, express or implied, are disclaimed if not stated herein. Any implied warranties you may have under state law are limited to the same duration and other terms as this warranty to the extent permissible.

    DRiV will contact warranty-serviced consumers to conduct customer satisfaction surveys relating to product and warranty service. Survey activity will provide valuable feedback and help measure the level of consumer satisfaction in different markets.

    Shipping Info

    Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

    • Applies to items like axles, leaf springs, and long-travel kits.
    • No international shipping on freight items — only to U.S.-based freight forwarders.
    • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

    Contact us for an international shipping quote.

    Returns & Exchanges

    30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

    • No restocking fees for exchanges or gift card credit.
    • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
    • Installed, damaged, or dirty parts cannot be returned.
    • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

    Need help? Use Live Chat or Email Us anytime.

    Start a Return or Exchange

    Return Shipping Responsibility

    CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

    • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
    • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

    • Under 50 lbs: Discounted carrier rate
    • Over 50 lbs: Discounted carrier rate + $25 oversize fee

    Refunds

    Refunds are issued within 5–7 business days of receiving your return.

    • Funds typically post to your account in 1–3 business days depending on your payment method.
    • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
    • You will receive an email once your refund is processed.

    International Orders

    • All international orders are final sale.
    • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
    • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
    • We are not responsible for goods once exported outside the U.S.

    Product Details

    Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!

    Part Numbers & Details

    View full product specifications

    Close specs
    Part Numbers & Details
    1 Shock Absorber
    Package contains a single shock.
    Monroe Limited Lifetime Warranty
    Manufacturer provided lifetime warranty and exclusive Feel the Difference Guarantee.
    Factory Hardware for Installation
    All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation.
    Designed for Trucks and Vans
    Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
    Heavy Duty Build
    Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
    Nitrogen gas charge
    Maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
    Specifications
    Part NumberItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
    66683Shock Absorber124.07"15.31"8.76"EYELET/SLEEVEEYELET/SLEEVE
    Product Details

    Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

    Compatibility List
    YearMakeModelDrivePosition
    1993GMCW5500 ForwardFront
    2016Ic corporationRE School BusRear
    2015Ic corporationRE School BusRear
    2014Ic corporationRE School BusRear
    2013Ic corporationRE School BusRear
    2012Ic corporationRE School BusRear
    2011Ic corporationRE School BusRear
    2010Ic corporationRE School BusRear
    2009Ic corporationRE School BusRear
    2008Ic corporationRE School BusRear
    2007Ic corporationRE School BusRear
    2006Ic corporationRE School BusRear
    2005Ic corporationRE School BusRear
    2004Ic corporationRE School BusRear
    2003Ic corporationRE School BusRear
    1992International1452SCRear
    1991International1452SCRear
    1990International1452SCRear
    1989International1452SCRear
    1988International1452SCRear
    1987International1452SCRear
    1992International1652SCRear
    1991International1652SCRear
    1990International1652SCRear
    1989International1652SCRear
    1988International1652SCRear
    1987International1652SCRear
    1986International1652SCRear
    1988International1654Rear
    1987International1654Rear
    1986International1654Rear
    1985International1654Rear
    1984International1654Rear
    1983International1654Rear
    1982International1654Rear
    1981International1654Rear
    1980International1654Rear
    1994International3700Rear
    1993International3700Rear
    1992International3700Rear
    1991International3700Rear
    1990International3700Rear
    2004International3800Rear
    2003International3800Rear
    2002International3800Rear
    2001International3800Rear
    2000International3800Rear
    1999International3800Rear
    1998International3800Rear
    1997International3800Rear
    1996International3800Rear
    1995International3800Rear
    1994International3800Rear
    1993International3800Rear
    1992International3800Rear
    1991International3800Rear
    1990International3800Rear
    1989International3800Rear
    1988International3800Rear
    1987International3800Rear
    2013International4300LPRear
    2013International4400LPRear
    1994International4600LPRear
    1993International4600LPRear
    1992International4600LPRear
    1991International4600LPRear
    1990International4600LPRear
    2002International4700LPRear
    2001International4700LPRear
    2000International4700LPRear
    1999International4700LPRear
    1998International4700LPRear
    1997International4700LPRear
    1996International4700LPRear
    1995International4700LPRear
    1994International4700LPRear
    1993International4700LPRear
    1992International4700LPRear
    1991International4700LPRear
    1990International4700LPRear
    1999International9300Rear
    1998International9300Rear
    1997International9300Rear
    1996International9300Rear
    1995International9300Rear
    1994International9300Rear
    1993International9300Rear
    1992International9300Rear
    1991International9300Rear
    1990International9300Rear
    1989International9300Rear
    1999International9400Rear
    1998International9400Rear
    1997International9400Rear
    1996International9400Rear
    1995International9400Rear
    1994International9400Rear
    1993International9400Rear
    1992International9400Rear
    1991International9400Rear
    1990International9400Rear
    Warranty

    View warranty coverage

    Close specs

    Monroe Manufacturer's Warranty

    DRiV warrants qualifying Monroe products against defects and wear-out when used on private passenger cars and light trucks under normal operating conditions, for as long as such original purchaser owns the vehicle on which they were originally installed.

    Qualifying Products

  • Monroe OESpectrum shocks and struts
  • Monroe Reflex shocks and struts
  • Monroe Quick-Strut assembly
  • Monroe Gas-Magnum shocks
  • Monroe Magnum loaded strut assembly
  • DRiV's obligation under this warranty is limited to replacement of the worn-out or defective product in accordance with this warranty. Cost of removal and installation are not included, and any incidental and consequential damages are excluded under this warranty, regardless of when the failure occurs. This warranty has no cash value.

    To make a claim under this warranty, return the worn-out or defective product with the dated original receipt to the dealer or retailer from whom it was purchased.

    This warranty does not apply to purchases made through unauthorized retailers/dealers including unauthorized online sellers. DRiV has no way to confirm the authenticity and quality of products sold through unauthorized resellers and is not obligated to honor warranty claims when purchased from an unauthorized individual, unauthorized retailer/dealer, or unauthorized online retailer. Purchases made through auction sites, marketplaces, private or third-party sales, or other unauthorized online retailers are not eligible for warranty.

    This warranty does not apply to: (i) any other costs, including costs of removal, installation, diagnostic time, and any other expenses arising out of replacing the product (ii) products which have been installed on non-catalogued applications; (iii) products that are new, unused or show signs of normal wear but not defective; (iv) products which have been misused, modified, altered, improperly applied or installed; (v) product damaged in an accident or by fire, weather, or any other force majeure event or hazard; (vi) products which have been installed on vehicles used for commercial, fleet, Governmental or racing purposes or damaged due to vehicle modifications; (vii) obsolete parts no longer available from DRiV; (viii) product that has been transferred from the vehicle on which it was originally installed; (ix) non-geniune DRiV branded product or competitive parts; and (x) products installed on vehicles that have been modified outside the specifications of the vehicle’s original equipment manufacturer, including but not limited to aftermarket modifications for racing, off-road, or powersports purposes.

    DRiV will not accept any returns and is not responsible for any claims related to circumstances and products described in the preceding sentence. All warranties, express or implied, are disclaimed if not stated herein. Any implied warranties you may have under state law are limited to the same duration and other terms as this warranty to the extent permissible.

    DRiV will contact warranty-serviced consumers to conduct customer satisfaction surveys relating to product and warranty service. Survey activity will provide valuable feedback and help measure the level of consumer satisfaction in different markets.

    Shipping & Returns

    Free shipping within the lower 48 United States

    Close specs

    Shipping Info

    Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

    • Applies to items like axles, leaf springs, and long-travel kits.
    • No international shipping on freight items — only to U.S.-based freight forwarders.
    • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

    Contact us for an international shipping quote.

    Returns & Exchanges

    30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

    • No restocking fees for exchanges or gift card credit.
    • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
    • Installed, damaged, or dirty parts cannot be returned.
    • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

    Need help? Use Live Chat or Email Us anytime.

    Start a Return or Exchange

    Return Shipping Responsibility

    CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

    • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
    • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

    • Under 50 lbs: Discounted carrier rate
    • Over 50 lbs: Discounted carrier rate + $25 oversize fee

    Refunds

    Refunds are issued within 5–7 business days of receiving your return.

    • Funds typically post to your account in 1–3 business days depending on your payment method.
    • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
    • You will receive an email once your refund is processed.

    International Orders

    • All international orders are final sale.
    • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
    • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
    • We are not responsible for goods once exported outside the U.S.