The Castair PUK2008MDC is a pump unit kit built around the 2008MDC pump assembly. Castair's pump unit kits are designed for shops or contractors who need to replace or upgrade the core pump assembly in an existing compressor frame, or for OEM assemblers building compressors from major components. The 2008MDC designation identifies this specific pump configuration. Note: detailed CFM, RPM, and dimensional specifications for the PUK2008MDC are not published in Castair's public web catalog — contact us at 866-217-0063 for the full specification sheet and compatibility information before ordering.
About Castair Pump Unit Kits
Castair pump unit kits bundle the pump, flywheel, and associated hardware as a matched assembly rather than requiring separate sourcing of each component. Flywheel sizing, bore-to-stroke ratios, and oil capacity are all matched at the factory. When you source individual pump components separately and mismatch them, you can end up with vibration issues, incorrect RPM loading, or inadequate oil capacity for the duty cycle required. The kit format eliminates that risk.
What Castair Cast Iron Pumps Offer
- Cast iron cylinder construction: Superior heat dissipation and wear resistance versus aluminum bore pumps
- Two-piece connecting rod: Independent wrist pin design for proper lubrication and reduced side loading on the piston
- Three-ring piston: Oil control, compression, and wiper rings for clean, efficient compression
- Ball bearings at crankshaft ends: Reduced friction, longer bearing life compared to plain bearings
- V-cylinder and W-cylinder designs: 360-degree cooling airflow around cylinder heads
- Easy-read sight glass: Visual oil level check without removing the fill cap
- Warranty: 1 year parts when properly installed and maintained
Castair Bare Pump Lineup — Context for the 2008MDC
The following Castair bare pumps are published in the standard catalog. The PUK2008MDC is a pump unit kit within this product family:
- PK20 — 1.5 HP, 20 lbs, single stage, 1 cylinder, 7.5" flywheel, 8 oz oil
- PK30 — 1.5 HP, 45 lbs, single stage, 1 cylinder, 10" flywheel, 8 oz oil
- PK50 — 2 HP, 50 lbs, single stage, V2 cylinder, 10" flywheel, 16 oz oil
- PK60 — 3.5 HP, 55 lbs, single stage, V2 cylinder, 10" flywheel, 24 oz oil
- VA80 — 3.5-5 HP, 110 lbs, single stage, V2 cylinder, 12.5" flywheel, 1 qt oil
- PUK65 — 4-5 HP, 70 lbs, single stage, W3 cylinder, 10" flywheel, 28 oz oil
- C1 — 4-7.5 HP, 225 lbs, two stage, inline 2 cylinder, 16.875" flywheel, 2 qt oil
- C2 — 7.5-10 HP, 320 lbs, two stage, V4 cylinder, 19.0" flywheel, 2 qt oil
Important Note on Specifications
The PUK2008MDC appears to be a dealer-channel product with specifications available through distributor pricing sheets rather than the public web catalog. CFM output, maximum PSI, RPM rating, and physical dimensions for this specific kit are not confirmed from published manufacturer data. We can provide these specifications by phone or email — contact us before ordering to confirm compatibility with your motor and tank setup.
Technical Specifications
- Part Number: PUK2008MDC
- Manufacturer: Castair (Cast Air)
- Type: Pump Unit Kit
- Category: Major Components — Pumps
- Warranty: 1 year parts when properly installed and maintained
- Detailed specs: Contact 866-217-0063 for current specification sheet
What's in the Box
- Castair 2008MDC pump unit kit (pump assembly and flywheel — confirm complete contents when ordering)
Why Buy From Air Compressor Factory Direct?
We carry Castair major components including pump unit kits for repair and build applications. If you are rebuilding a compressor or need to match a pump to an existing motor and tank setup, call us — we can identify the right pump for your HP and CFM requirements and confirm the PUK2008MDC specifications. Free shipping on qualifying orders. Full manufacturer warranty coverage.
Call 866-217-0063 for quick answers and help!
