Monroe

Magnum OE Replacement Shocks

66605
$69.99

In Stock

Estimated Delivery in 3-7 business days

Monroe

Magnum OE Replacement Shocks

66605
$69.99

In Stock

Estimated Delivery in 3-7 business days

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
66605Shock Absorber121.39"12.86"8.53"OEMOEM
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
1996ChevroletW6500 TiltmasterRear
1995ChevroletW6500 TiltmasterRear
1994ChevroletW6500 TiltmasterRear
1993ChevroletW6500 TiltmasterRear
1992ChevroletW6500 TiltmasterRear
1991ChevroletW6500 TiltmasterRear
1990ChevroletW6500 TiltmasterRear
1989ChevroletW6500 TiltmasterRear
1988ChevroletW6500 TiltmasterRear
1987ChevroletW6500 TiltmasterRear
2018Ic corporationRE School BusFront
2017Ic corporationRE School BusFront
2016Ic corporationRE School BusFront
2015Ic corporationRE School BusFront
2014Ic corporationRE School BusFront
2013Ic corporationRE School BusFront
2012Ic corporationRE School BusFront
2011Ic corporationRE School BusFront
2010Ic corporationRE School BusFront
2009Ic corporationRE School BusFront
2008Ic corporationRE School BusFront
2007Ic corporationRE School BusFront
2006Ic corporationRE School BusFront
2005Ic corporationRE School BusFront
2004Ic corporationRE School BusFront
2003Ic corporationRE School BusFront
1992International1452SCFront
1991International1452SCFront
1990International1452SCFront
1989International1452SCFront
1988International1452SCFront
1987International1452SCFront
1992International1652SCFront
1991International1652SCFront
1990International1652SCFront
1989International1652SCFront
1988International1652SCFront
1987International1652SCFront
1986International1652SCFront
1989International1654Front
2002International3400Front
2001International3400Front
2000International3400Front
1999International3400Front
1998International3400Front
1997International3400Front
1996International3400Front
1994International3700Front
1993International3700Front
1992International3700Front
1991International3700Front
1990International3700Front
2004International3800Front
2003International3800Front
2002International3800Front
2001International3800Front
2000International3800Front
1999International3800Front
1998International3800Front
1997International3800Front
1996International3800Front
1995International3800Front
1994International3800Front
1993International3800Front
1992International3800Front
1991International3800Front
1990International3800Front
1989International3800Front
1988International3800Front
1987International3800Front
1994International4600LPFront
1993International4600LPFront
1992International4600LPFront
1991International4600LPFront
1990International4600LPFront
2001International4700LPFront
2000International4700LPFront
1999International4700LPFront
1998International4700LPFront
1997International4700LPFront
1996International4700LPFront
1995International4700LPFront
1994International4700LPFront
1993International4700LPFront
1992International4700LPFront
1991International4700LPFront
1990International4700LPFront
1996IsuzuFSRRear
1995IsuzuFSRRear
1994IsuzuFSRRear
1993IsuzuFSRRear
1992IsuzuFSRRear
1991IsuzuFSRRear
1990IsuzuFSRRear
1989IsuzuFSRRear
1996IsuzuFTRRear
1995IsuzuFTRRear
1994IsuzuFTRRear
1993IsuzuFTRRear
1992IsuzuFTRRear
1991IsuzuFTRRear
1990IsuzuFTRRear
1989IsuzuFTRRear
1988IsuzuFTRRear
1996IsuzuFVRRear
1995IsuzuFVRRear
1994IsuzuFVRRear
1993IsuzuFVRRear
1992IsuzuFVRRear
1991IsuzuFVRRear
1990IsuzuFVRRear
1989IsuzuFVRRear
1988IsuzuFVRRear

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
    66605Shock Absorber121.39"12.86"8.53"OEMOEM
    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
    1996ChevroletW6500 TiltmasterRear
    1995ChevroletW6500 TiltmasterRear
    1994ChevroletW6500 TiltmasterRear
    1993ChevroletW6500 TiltmasterRear
    1992ChevroletW6500 TiltmasterRear
    1991ChevroletW6500 TiltmasterRear
    1990ChevroletW6500 TiltmasterRear
    1989ChevroletW6500 TiltmasterRear
    1988ChevroletW6500 TiltmasterRear
    1987ChevroletW6500 TiltmasterRear
    2018Ic corporationRE School BusFront
    2017Ic corporationRE School BusFront
    2016Ic corporationRE School BusFront
    2015Ic corporationRE School BusFront
    2014Ic corporationRE School BusFront
    2013Ic corporationRE School BusFront
    2012Ic corporationRE School BusFront
    2011Ic corporationRE School BusFront
    2010Ic corporationRE School BusFront
    2009Ic corporationRE School BusFront
    2008Ic corporationRE School BusFront
    2007Ic corporationRE School BusFront
    2006Ic corporationRE School BusFront
    2005Ic corporationRE School BusFront
    2004Ic corporationRE School BusFront
    2003Ic corporationRE School BusFront
    1992International1452SCFront
    1991International1452SCFront
    1990International1452SCFront
    1989International1452SCFront
    1988International1452SCFront
    1987International1452SCFront
    1992International1652SCFront
    1991International1652SCFront
    1990International1652SCFront
    1989International1652SCFront
    1988International1652SCFront
    1987International1652SCFront
    1986International1652SCFront
    1989International1654Front
    2002International3400Front
    2001International3400Front
    2000International3400Front
    1999International3400Front
    1998International3400Front
    1997International3400Front
    1996International3400Front
    1994International3700Front
    1993International3700Front
    1992International3700Front
    1991International3700Front
    1990International3700Front
    2004International3800Front
    2003International3800Front
    2002International3800Front
    2001International3800Front
    2000International3800Front
    1999International3800Front
    1998International3800Front
    1997International3800Front
    1996International3800Front
    1995International3800Front
    1994International3800Front
    1993International3800Front
    1992International3800Front
    1991International3800Front
    1990International3800Front
    1989International3800Front
    1988International3800Front
    1987International3800Front
    1994International4600LPFront
    1993International4600LPFront
    1992International4600LPFront
    1991International4600LPFront
    1990International4600LPFront
    2001International4700LPFront
    2000International4700LPFront
    1999International4700LPFront
    1998International4700LPFront
    1997International4700LPFront
    1996International4700LPFront
    1995International4700LPFront
    1994International4700LPFront
    1993International4700LPFront
    1992International4700LPFront
    1991International4700LPFront
    1990International4700LPFront
    1996IsuzuFSRRear
    1995IsuzuFSRRear
    1994IsuzuFSRRear
    1993IsuzuFSRRear
    1992IsuzuFSRRear
    1991IsuzuFSRRear
    1990IsuzuFSRRear
    1989IsuzuFSRRear
    1996IsuzuFTRRear
    1995IsuzuFTRRear
    1994IsuzuFTRRear
    1993IsuzuFTRRear
    1992IsuzuFTRRear
    1991IsuzuFTRRear
    1990IsuzuFTRRear
    1989IsuzuFTRRear
    1988IsuzuFTRRear
    1996IsuzuFVRRear
    1995IsuzuFVRRear
    1994IsuzuFVRRear
    1993IsuzuFVRRear
    1992IsuzuFVRRear
    1991IsuzuFVRRear
    1990IsuzuFVRRear
    1989IsuzuFVRRear
    1988IsuzuFVRRear
    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.