KYB 565050 Shock Absorber - Rear

KYB MonoMax Rear Shock Absorber 565050

The KYB MonoMax 565050 is a heavy-duty rear shock absorber built for trucks and vans that carry weight, tow, or see rough road use. Its monotube design supports stable handling and consistent damping for vehicles like the Chevrolet Astro, GMC Safari, and Volkswagen Vanagon.

Key Features

• Maximum performance upgrade with up to 40% more damping performance than standard shock absorbers
• Monotube truck shock design for improved handling control and durability
• Zinc-coated stainless steel piston ring for a positive seal in demanding conditions
• Off-road dust boot helps protect the shaft and seal area from dirt and debris
• Engineered to support vehicles with electronic safety systems such as ESC and ABS
• Rear fitment with E2(12X42) upper and lower mounts
• Compressed length: 14.17 in; extended length: 21.65 in; stroke length: 7.48 in

Product Details

KYB MonoMax is the brand’s heavy-duty shock line for applications that need added stability and control. This KYB 565050 rear shock absorber uses a monotube construction that responds consistently under load, helping maintain damping performance during towing, hauling, and off-road driving. The design is well suited for Chevrolet Astro rear shock replacement, GMC Safari rear suspension service, and Volkswagen Vanagon rear shock upgrades where firmer control is preferred over a standard replacement.

This part cross-references Monroe Shocks & Struts (e.g., 37064) for the same application.

What It Helps Address

• Excessive rear-end bounce on loaded vehicles
• Reduced control during towing or hauling
• Fade in shock performance during extended rough-road use
• Dust and debris exposure around the shock shaft and seals
• Need for a rear suspension upgrade on GM truck-based vans

Installation Notes

Fits 1985-2005 Chevrolet Astro, rear. Fits 1990-2005 Chevrolet Astro, rear. Fits 1985-2005 GMC Safari, rear. Fits 1990-2005 GMC Safari, rear. Fits 1986-1991 Volkswagen Vanagon, rear. Verify mount style, compressed length, and extended length before installation. Rear shock replacement should be completed with the suspension at normal ride height when possible, and all fasteners should be torqued to the vehicle manufacturer’s specification.

Quality Assurance

KYB manufactures the MonoMax line for demanding truck and van applications, with a focus on damping control, seal integrity, and durability in severe service conditions. Part number 565050 is built as a heavy-duty monotube shock absorber for rear suspension use.