Monroe 33178 Shock Absorber - Front

Overview of Monroe Monro-Matic Plus Shock Absorber 33178

The Monroe Monro-Matic Plus Shock Absorber part number 33178 is designed to restore ride control and improve handling for select Chevrolet, GMC, and Isuzu trucks. Engineered for specific suspension needs, this shock absorber fits models such as the Chevrolet Colorado, GMC Canyon, and Isuzu i-350 and i-370.

• Compressed length: 10 inches
• Extended length: 14.5 inches
• Travel length: 4.5 inches
• Lower mounting type: Loop bushing & sleeve mount (12mm sleeve ID x 1" sleeve OAL)
• Upper mounting type: Stem mount (2.3/8" stem length x 3/8"-16 thread pitch)
• Lower mounting code: Ls21
• Parts pack included: P01134
• No dust shield or bumper stops included

Monro-Matic Plus Shock Absorber Product Line Details

The Monro-Matic Plus Shock Absorber line is engineered to provide consistent damping performance and improved ride quality for light trucks and SUVs. This product line focuses on restoring original equipment ride characteristics by using calibrated valving and durable construction. The 33178 shock absorber is part of this line, offering a balance of comfort and control tailored to the suspension systems of Chevrolet Colorado, GMC Canyon, and Isuzu i-Series trucks.

Detailed Product Description

The Monroe Monro-Matic Plus Shock Absorber 33178 features a compressed length of 10 inches and an extended length of 14.5 inches, providing a travel length of 4.5 inches. It uses a loop bushing and sleeve mount with a 12mm sleeve inner diameter and a 1-inch sleeve overall length for the lower mounting point, identified by the mounting code Ls21. The upper mounting is a stem mount with a 2.3/8 inch stem length and a 3/8-16 thread pitch, ensuring secure attachment to the vehicle's suspension. This shock absorber does not include a dust shield or bumper stops, which is typical for this application. The included parts pack (P01134) contains necessary hardware for installation.

Common Applications and Problem Solving

• Restores vehicle stability and control on Chevrolet Colorado, GMC Canyon, and Isuzu i-350/i-370 models
• Reduces excessive bouncing and body roll during cornering or over uneven terrain
• Improves ride comfort by absorbing road shocks and vibrations
• Addresses worn or leaking original shock absorbers causing poor handling
• Helps maintain proper tire contact with the road for safer braking and steering

Installation Notes and Tips

• Verify compatibility with your specific make, model, and year before installation
• Use the included parts pack (P01134) for mounting hardware to ensure proper fit
• Inspect mounting points for wear or damage and replace bushings if necessary
• Torque mounting bolts to manufacturer specifications to avoid premature wear
• Professional installation is recommended for optimal performance and safety

Quality Assurance and Warranty

Monroe Monro-Matic Plus Shock Absorbers are manufactured to meet or exceed original equipment standards. While specific warranty details for part number 33178 should be confirmed with the manufacturer or distributor, Monroe typically offers limited warranties covering defects in materials and workmanship. This ensures reliable performance and durability for Chevrolet Colorado, GMC Canyon, and Isuzu i-Series vehicles equipped with this shock absorber.