Fleetline Heavy Duty Rear Shock Absorber for Hendrickson HAS Series

In this review the Gabriel Fleetline 83144 heavy duty rear shock absorber is assessed for commercial truck and Class A motorhome use, and the bottom line is practical: it is a direct OE replacement built to match original valving and durability for heavy-duty Hendrickson HAS systems. Buyers who need a like-for-like replacement for HAS - 400, HAS - 402 or HAS - 460 applications will appreciate the matching stroke and mount codes, while fleet users will like the corrosion protection and rugged end mounts that reduce downtime.

Key Features

• OE-fit replacement: Designed to match or exceed original equipment valving so ride control closely replicates factory feel on Hendrickson HAS rear suspensions.
• Heavy-duty construction: Chromed piston rod and 360 degree arc welded end mounts provide strength and reduce the risk of end mount breakage under commercial loads.
• Corrosion resistance: Anti-corrosive end mounts and chromed rod help prevent rust and bolt seizure, which simplifies future removal and service.
• Consistent damping: Self-compensating piston seal keeps damping consistent over time to maximize shock life in demanding haul applications.
• Protective features: Hydraulic rebound stop where applicable reduces impact damage to the shock and connected air springs.

Who It's For

The Fleetline 83144 is aimed at fleet managers, owner-operators and RV owners running Hendrickson HAS rear suspension on Class 7 and 8 trucks, International WorkStar models and select Class A motorhomes with Roadmaster chassis. It suits technicians who need the correct stroke and mount codes for a direct swap and operators who prioritize reduced downtime and corrosion protection.

Those who should look elsewhere include owners needing front or non-HAS suspension parts, or anyone seeking a lifetime warranty for heavy commercial cycles; reports of occasional leakage and premature failures suggest high-mileage rigs with extreme duty cycles may prefer a different heavy-duty aftermarket offering with longer proven longevity.

Pros & Cons

Pros

• Built to match OE valving, delivering ride quality similar to the original shock.
• Durable hardware including chromed piston rod and welded end mounts improves service life and installation reliability.
• Anti-corrosive end mounts and protective features reduce rust and simplify removal.

Cons

• Some customers report durability issues such as leakage or failures on a subset of units, so longevity can vary by duty cycle.

Specifications

Our Verdict

The Gabriel Fleetline 83144 is a practical, value-oriented replacement for Hendrickson HAS rear suspensions that reproduces OE valving and adds corrosion-resistant components for easier service. Its a smart choice for fleets and RV owners needing a direct fit and solid ride control, but buyers with extreme high-mileage abuse should weigh customer reports of occasional leaks when planning long-term maintenance.

Frequently Asked Questions

Will this shock fit Hendrickson HAS - 400 rear suspensions?
Yes, the Fleetline 83144 is specified for HAS - 400 inboard rear applications and matches the required mount codes and stroke.

Is the shock corrosion resistant for long service life?
It includes a chromed piston rod and anti-corrosive end mounts designed to reduce rust and bolt seizure in most applications.

Are there known longevity issues?
Some users report leaks or premature failures on a small number of units, so monitor units after installation and consider duty cycle when choosing replacements.