The Monroe Shocks & Struts Magnum Front Suspension Shock Absorber (part number 66653) is a direct-fit replacement for 1986-2025 Chevrolet, GMC, and Isuzu vehicles with engines. Monroe Magnum 66653 Front Suspension Shock Absorber
Features:
- INSTALLERS ADVANTAGE -- Designed to save time, simplify the job, fix OE design issues, solve customer complaints or enhances durability and longevity
- FOR HARDWORKING COMMERCIAL VEHICLES -- Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
- CONSISTENT RIDE -- All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
- EXCEPTIONAL HANDLING -- 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
- STRONG AND DURABLE -- Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360 deg for durability
- BUILT TO LAST -- Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
- LONGER SERVICE LIFE -- Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
- REDUCED NOISE, VIBRATION AND HARSHNESS -- Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
- IMPROVES PERFORMANCE -- Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
- BUY WITH CONFIDENCE -- Comes with Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty
Specifications:
| Product Grade | Premium |
| Lower Mount Type | Loop Bushing Mount - 3/4" Bushing ID X 1.9/16" Bushing OAL |
| Lower Mount Code | L3 |
| Upper Mount Type | Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch |
| Upper Mount Code | S4 |
| Parts Pack(s) | P01134 |
| Part Description | Shock Absorber |
Fits: 1986-2025 Chevrolet, GMC, and Isuzu models including LCF 3500, LCF 3500HD, LCF 3500HG, LCF 4500, LCF 4500HD, LCF 4500XD, LCF 5500HD, LCF 5500HG and more. Confirm your year, make, model, and engine before ordering.
Interchanges With: Isuzu 94454987, GMC 97083029, Meritor MG60177, GMC 98232671, Isuzu 94454986, Isuzu 97083027, Isuzu 8982326720, International AMS660208 and 54 more
