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ARP LS1 LS2 12pt Water Pump Bolts w/ Thermostat Housing Bolts Kit

ARP
ARP134-3202
672036034863
Hardware Kits - Other
2 Units In Stock - Ships Next Business Day
$ 29.53
$ 29.53

SKU: 134-3202 | UPC: 672036034863

ARP LS1 LS2 12pt Water Pump Bolts w/ Thermostat Housing Bolts Kit Fits 1997-2007 GM LS Engines

This ARP kit supplies 12-point water pump bolts and thermostat housing bolts designed specifically for GM LS1 and LS2 engines found in high-performance Chevrolet and Pontiac vehicles from 1997 to 2007. These fasteners replace weak OEM bolts to ensure secure water pump and thermostat housing retention under extreme heat and pressure. Enthusiasts rely on this kit for leak-free operation in street-driven cars, drag strips, and road courses.

Key Features

  • Genuine ARP Fasteners: Forged from 8740 chromoly steel for consistent clamping force that resists fatigue in high-horsepower LS builds
  • 12-Point Bolt Heads: Provide secure tool grip to prevent cam-out and stripped corners during installation
  • Precision-Rolled Threads: Ensure maximum thread engagement and accurate torque values for repeatable performance
  • Black Oxide Finish: Resists corrosion while maintaining a professional look under the hood
  • Complete Kit Contents: Includes all required bolts for water pump and thermostat housing with matched lengths for direct replacement

Product Notes

  • Engineered for LS1 LS2 LS6 applications including Cathedral Port heads
  • Compatible with aluminum LS blocks and aftermarket water pumps
  • Small lightweight kit ships quickly without oversize fees

Installation Notes

  • Professional installation recommended.
  • Clean all threads thoroughly and apply ARP Ultra-Torque lubricant for precise torque
  • Torque to ARP specs: water pump bolts 22 ft-lbs, thermostat bolts 18 ft-lbs in sequence. recheck after 100 miles

This Part Fits

Year Make Model Submodel
1997-2004 Chevrolet Corvette Base, 50th Anniversary Edition, Z06
1998-2002 Chevrolet Camaro Z28, SS
1998-2002 Pontiac Firebird Formula, Trans Am
2004-2006 Pontiac GTO Base
2003-2006 Chevrolet SSR All
1999-2007 Chevrolet Silverado 1500 LS1/LS2 Equipped
1999-2007 GMC Sierra 1500 LS1/LS2 Equipped

Why Choose ARP?

  • Trusted by NHRA Pro Stock teams and millions of engine builders for over 50 years
  • Every fastener exceeds OEM strength ratings for extreme duty cycles
  • CNC-machined and heat-treated for exact fit and unlimited reusability

Frequently Asked Questions

  • Q: Will this kit fit LS3 or later engines?
    A: Designed for LS1 LS2 LS6 with Cathedral Port intake. LS3 requires ARP 134-3607 due to different water pump bolt pattern
  • Q: What material are the bolts made from?
    A: High-tensile 8740 chromoly steel with black oxide coating rated at 200,000 PSI tensile strength
  • Q: Is special hardware needed for installation?
    A: No. kit is complete and direct-fit replacement, but use ARP thread lube and follow torque sequence for best results

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Compact protective box 6 x 4 x 1 inches
  • Weight: 0.25 lbs

Request For Information

Have questions about ARP LS1 LS2 12pt Water Pump Bolts w/ Thermostat Housing Bolts Kit? Fill out the form below and we'll get back to you by the next business day.
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