1 2

Nordic Cool Systems

Holley / Sanden SD508 A/C Compressor – 12 V (OE Quality, Multiple Pulley Options)

Holley / Sanden SD508 A/C Compressor – 12 V (OE Quality, Multiple Pulley Options)

£0.00 GBP
£0.00 GBP
Sale Sold out
Taxes included.

📝 Detailed Product Description

The Holley SD508, manufactured by Sanden, is a high-performance OE-style A/C compressor built for durability, reliability, and versatile fitment. Designed especially for modified and classic vehicles (including those equipped with GM Gen III/IV LS engines), it handles high RPM bursts while maintaining efficient and consistent cooling. Its aluminium case construction makes it both light and corrosion-resistant.

🔧 Key Specifications

Spec Detail
Brand / Model Sanden SD508 (Holley part numbers 199-101, 199-103, 199-105) 
Voltage 12 V system 
Pulley Type Serpentine belt type pulleys (6-groove serpentine), V-belt 2-groove, double V, wide single groove variants 
Pulley Groove Count The most common is 6-groove serpentine. 
Refrigerant Compatibility R-134a with PAG oil charge (pre-oiled at factory) 
Finish / Colour Black, polished aluminum, sometimes with a chrome finish depending on variant
Case Material Aluminum, lightweight alloy construction 
Clutch Included Yes, it includes the clutch assembly. 
Fitment Widely used in retrofits, classic vehicles, LS engine swaps, etc. (GM LS, Chevy, Ford etc.) 
Weight Approx. 16 lbs for certain variants 

⚙️ Pulley / Variant Options

This compressor comes in several pulley configurations to fit different belt systems and clearances:

  • 6-Groove Serpentine Pulley – The most common variant, ideal for modern serpentine belt systems.

  • 2-Groove V-Belt Pulley – For traditional V-belt setups.

  • Double V-Pulley – For dual V-belt systems.

  • Wide Single Groove Pulley (single wide V or “chrome wide groove”) – Often used for custom installations or where a single, wide contact belt is preferred. 

The finish options vary too: gloss black, polished aluminium, chrome, or raw metal, depending on the variant. These affect aesthetics, especially in classic or custom vehicle builds. 

✅ What Sets It Apart

  • OE-quality craftsmanship from Sanden, guaranteeing reliability and long service life. 

  • The lightweight, compact design makes fitment easier in tight engine bays.

  • Designed to tolerate high RPM bursts without failure – ideal for performance vehicles. 

  • Pre-oiled, so installation is quicker (just ensure correct mounting and alignment). 

⚠ Installation & Care Notes

  • Confirm belt alignment and pulley groove compatibility before ordering.

  • Check that refrigerant lines and connectors (ports) are correct for your vehicle – SD508 variants often come with male bullet-type terminal fittings. 

  • Ensure proper oil charge after installation; even pre-oiled units benefit from verifying oil level.

  • Maintain proper belt tension to avoid slipping.

  • Always use proper refrigerant recovery procedures when removing or replacing compressors (for safety and regulatory compliance) – refer to Sanden’s service guide

View full details