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LS Water Pump & Thermostat Bolt Kit

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Water Pump Bolts for GM LS series engines.

Compatible with any 97-14 (GM LS series engine) water pump


  • Includes; 6 water pump bolts & 2 thermostat housing bolts
  • Bolts are clear zinc coated steel, Grade 10.9, JIS head
  • Torque Spec for Water Pump Bolts is 22 ft-lb, Thermostat Bolts is 11 ft-lb

More Information

Bullet Point 1 Heavy duty bolts
Bullet Point 2 High strength, grade 10.9 bolts
Bullet Point 3 Zinc coated for long lasting corrosion protection and prevents threads from seizing
Bullet Point 4 No washers needed with these flange head bolts
Bullet Point 5 JIS spec bolts
Manufacturer Part Number 551434
UPC 656729844342
Weight 0.560000
ICT Manufacturer ICT Billet
United States Unknown or Varies
Length Inches 4
Width Inches 2
Height Inches 1
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WARNING - This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.