Abovedeck Hydraulic Air Compressor Parts & Maintenance Kits | Vanair®

Find genuine OEM maintenance kits and replacement parts for every Vanair® Abovedeck Hydraulically Driven Air Compressor in the Reliant™ and ADHD family. Whether you’re servicing a Reliant™ RC40 on a utility fleet or keeping an ADHD rotary screw running through a heavy construction season, the right parts start here.

Why OEM parts matter: Using non-genuine Vanair® filters or substituting non-Vanguard™ compressor oil will void your compressor warranty. Every kit listed here is engineered specifically for your Abovedeck Hydraulically Driven Air Compressor model to protect performance, uptime, and warranty coverage.

Find Parts by Abovedeck Hydraulically Driven Air Compressor Model

Select your Reliant™ or ADHD model to view maintenance kits, replacement filters, compressor oils, and accessories specific to your unit. 

Reliant™ RC 40 Hydraulically Driven Air Compressor

30-40 CFM | Up to 175 PSI | Reciprocating 

The field-proven workhorse of the Reliant™ line. Cast iron crankcase, corrosion-resistant steel valves, and an integrated cold weather package make the RC40 the standard choice for mechanic and service trucks that need reliable hydraulic-driven air in any climate.

Reliant™ RC 40-L Hydraulically Driven Air Compressor

30-40 CFM | Up to 175 PSI | Reciprocating 

This aluminum-canopy version delivers the same 40 CFM output with a 40% weight reduction over the RC40. Rust-resistant aluminum air end and canopy, reversible hinged hood, and hydraulic cooling assist for additional hydraulic systems.

Reliant™ RS45 Hydraulically Driven Air Compressor

30-45 CFM | Up to 175 PSI | Rotary Screw 

The highest CFM-per-pound machine in the Reliant™  line. The RS45 delivers 45 CFM at 100% duty cycle, aluminum canopy, lifetime warranty on the air end, and an ambient operating range of -20°F to +125°F.

Reliant™ RS85 Hydraulically Driven Air Compressor

60-85 CFM | Up to 150 PSI | Rotary Screw | Legacy Model

The original RS85 steel-canopy rotary screw in the Reliant™ line. If you’re servicing an older unit, do not worry Vanair® does stock OEM service parts and maintenance kits. Provide your model designation and serial number when ordering to confirm correct fitment for your production run.

Reliant™ RS85-L Hydraulically Driven Air Compressor

60-85 CFM | Up to 150 PSI | Rotary Screw 

85 CFM in an aluminum encapsulated rotary screw package. The RS85-L runs a direct-driven aluminum air end with a lifetime warranty, integrated hydraulic cooler, and sound attenuation design. Compact footprint maximizes deck space without sacrificing output.

Reliant™ RS85-LYM Hydraulically Driven Air Compressor

60-85 CFM | Up to 150 PSI | Rotary Screw | Mining-Rated

The mining-certified variant of the RS85-L. Built for surface and subsurface operations, the RS85-LYM eliminates yellow metals throughout the system to prevent corrosion in harsh and chemically active environments. IP67-rated remote digital display, stainless steel air pressure relief valve, and a two-stage air filter are standard.

ADHD Hydraulically Driven Air Compressor

125-185 CFM | Up to 150 PSI | Rotary Screw 

PTO-level performance in a modular Abovedeck package. The ADHD delivers 125, 160, or 185 CFM at up to 150 PSI from an oil-injected rotary screw air end with a lifetime warranty. Available in side-mount or vertically stacked receiver configurations. In-tank coalescer rated for 5 years or 3,000 hours with less than 2 PPM oil carry-over.

ADHD-LYM Hydraulically Driven Air Compressor

125-185 CFM | Up to 150 PSI | Rotary Screw | Underground Mining-Rated

The ADHD-LYM is built for underground mining operations, particularly ANFO-based blasting applications where yellow metal components create corrosion and safety risk. Identical output range to the ADHD (125-185 CFM, up to 150 PSI) with a hydraulically powered fan-cooled unit, no yellow metals throughout, and ASME/CRN-certified discharge tank rated to 250 PSI.

Abovedeck Hydraulically Driven Air Compressors Maintenance Schedule at a Glance

Use this quick-reference table to plan service intervals across all Abovedeck Hydraulically Driven models. For model-specific torque specs, oil capacities, and part numbers, always refer to the machine’s operator manual.

Key rule: The 50-hour break-in service is not optional. Skipping it accelerates air end wear and can void warranty coverage on affected components. After break-in, default to the 500-hour or annual interval, whichever comes first.

High-Utilization Fleets

For machines running more than 1,500 hours per year, Vanair® recommends shortening the standard service interval to every 250 hours. Heavy-duty and continuous-duty applications place greater thermal and mechanical load on filters, oil, and separators, and the standard annual interval may not be sufficient to protect air end life.

Signs a compressor may need service ahead of schedule:

• Oil carryover in the air line
• Elevated operating temperature
• Unusual noise or vibration during operation
• Reduced output pressure or CFM
• Hydraulic oil contamination in the compressor system

Frequently Asked Questions

What parts do I need for a 500-hour service on a Vanair® abovedeck hydraulic compressor?

A standard 500-hour service typically requires compressor oil, an oil filter, an air filter, and an oil separator. Some models also call for moisture separator service and a pressure relief valve test at this interval. The exact part numbers depend on your specific model and serial number range. Use the model-specific parts page or contact Vanair® to confirm the correct kit before ordering.

Can I use non-OEM filters and oil in my Vanair® abovedeck compressor?

Vanair® does not recommend using non-OEM filters, oil, or separators in Abovedeck Hydraulically Driven compressors. These machines are engineered to specific airflow, pressure, and hydraulic system tolerances. Aftermarket parts that do not meet those specs can accelerate wear, cause oil carryover, or create pressure inconsistencies. Using genuine Vanair® parts also keeps your machine aligned with its warranty terms.

How do I find the correct part number for my compressor model?

Start with the data plate mounted on the compressor canopy. It lists the model name and serial number, both of which are required to confirm correct part fitment. Part numbers can vary between serial number ranges within the same model. Once you have both, you can search the Vanair® parts store by model or submit a parts quote request for assistance.

What is the difference between the Reliant™ RC40 and RC40-L maintenance kits?

The RC40 uses a steel canopy configuration, while the RC40-L uses an aluminum canopy and air end. This difference affects some service components, including canopy hardware and certain air end-adjacent parts. The core oil, filter, and separator service items are similar, but kit part numbers differ. Always verify against the specific model designation before ordering.

Does Vanair® offer cold weather service kits for abovedeck hydraulic compressors?

Yes. Vanair® offers dedicated cold weather service kits for compressors equipped with the cold weather package. These kits include components for block heater inspection, thermostat verification, and cold-start system service. If your machine operates in climates that regularly drop below freezing, cold weather kit service should be performed before the winter season begins and verified again in early spring.

How do I contact Vanair® for parts support or warranty questions?

Vanair® parts support and warranty questions are handled by the Vanair® Service Department, reachable at 1-844-826-7378. For online parts ordering, genuine OEM maintenance kits, and replacement parts for all Reliant™ models, find a Vanair® Authorized Parts Distributor near you or shop their online store. When contacting service, have your machine package serial number and compressor serial number ready — both are required to confirm your exact configuration and process warranty or RMA requests.