LS3 Crate Engine Serpentine Package - Sanden HD - K10559

Q: What specific components are included in the complete K10559 package? 

A: This is an all-inclusive system that contains:

• Brackets: A/C compressor and Alternator/Power Steering brackets (6061-T6 aluminum).
• A/C Compressor: Genuine Sanden 709 (SD7H15) "HD" model.
• Alternator: PowerMaster 165-amp unit (4-pin plug).
• Power Steering Pump: Type 2 (CB series) pump with pulley and hose barb.
• Reservoir: Remote power steering fluid reservoir and feed hose.
• Belt, Tensioner & Pulleys: Gates 6-rib serpentine belt, spring-loaded automatic tensioner and idler pulleys.
• Hardware: All necessary spacers and zinc-plated fasteners.
  
  

LS Corvette Wide HD AC Installation Video (YouTube)

LS Corvette Wide HD AC Instructions (pdf)

LS Corvette Wide Alt/PS Instruction Video (YouTube)

LS Corvette Wide Mount Alt/PS Instructions (pdf)

Gates Belt Chart (Part number and length)

Q: What is the primary design purpose of the K10559 serpentine system? 

A: The K10559 is a complete, bolt-on front-drive accessory system specifically engineered for GM LS3 crate engines (and others) that are already equipped with Corvette-offset (Short) harmonic balancers and water pumps. It provides a "Wide Mount" layout that balances the accessory load across the front of the engine while maximizing clearance for the chassis and various intake manifolds.

Q: Which harmonic balancer and water pump offset is required for this kit? 

A: This system is strictly designed for Corvette/CTS-V "Short" spacing. Most factory GM LS3 crate engines ship with this configuration. If your engine is equipped with F-body (Medium) or Truck (Long) spacing, you will need to convert to Corvette-style components or utilize a different Kwik Performance kit (such as the K10560).

Q: What are the advantages of the Sanden 709 (HD) compressor over other models? 

A: Kwik Performance utilizes the Sanden 709 (SD7H15) in this kit because its 7-cylinder design offers smoother operation and higher pumping capacity (approx. 9.5 cubic inches per revolution) compared to the 5-cylinder Sanden 508. This makes it ideal for larger vehicle cabins or hotter climates where maximum cooling efficiency is required.

Q: Does this system provide clearance for aftermarket or low-profile intake manifolds? 

A: Yes. The "Wide Mount" geometry positions the alternator and A/C compressor outward and upward, ensuring ample clearance for factory LS3 intake manifolds as well as various low-profile aftermarket intake options.

Q: How does the included Type 2 power steering pump integrate into the system? 

A: The kit includes a compact Type 2 (CB series) pump which requires a remote-style reservoir. To simplify the installation, the K10559 includes the reservoir and the feed hose required to connect it to the pump. This setup is preferred for many swap applications due to the compact footprint of the pump itself.

Q: Is this system compatible with Variable Valve Timing (VVT) or Active Fuel Management (AFM)? 

A: While the brackets themselves do not interfere with AFM/DOD components, compatibility depends on the timing cover and balancer. Most LS3 crate engines do not feature VVT. If you are using a crate engine that does have VVT, the Corvette-spaced harmonic balancer required for this kit may not fit due to the thicker VVT timing cover. Verification of your specific engine's front-end configuration is recommended.

Q: What electrical requirements does the included 165-amp alternator have? 

A: The provided PowerMaster alternator is a high-output unit designed to support the electrical demands of modern fuel injection, electric fans, and high-performance fuel pumps. It features a standard 4-pin plug configuration. Heavy-gauge charging wire (at least 6 or 4 gauge) is highly recommended to safely handle the 165-amp output.

Q: Is a serpentine belt included, or must it be sourced separately? 

A: Unlike our bracket-only kits, the K10559 is a Complete System Package and includes a Gates 6-rib serpentine belt. The belt length is matched to the included alternator, compressor, and pump pulleys for a "drop-in" installation.

Q: What are the main differences between the K10559 and the K10560 kits? 

A: The primary difference is the starting engine configuration. The K10559 is for engines that already have Corvette spacing (most crate engines). The K10560 includes everything in the K10559 plus an LS3 Corvette water pump and harmonic balancer, allowing you to convert a truck-spaced engine (pull-out) to the more compact Corvette spacing.