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LS LS1 1.50" Water Pump Spacer Kit

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LS Water Pump Spacer Kit

Used for mounting Corvette (any year LS) water pump onto 1999-up LS truck engine to keep the belt properly aligned. This is the EXACT dimension required for this combination.

  • Can be used with all LS engines, currently running LS truck (or LS3 L99 Camaro) crank pulley
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Includes: 2 spacers, 4 gaskets, 1 steam port plug, and bolts
  • Approximately 1.57 inch thick spacers

***always use the belt tensioner that would have originally came with the water pump that you are using. (example: 1997 Corvette water pump would use a 1997 Corvette belt tensioner) These spacers will keep the alignment perfectly.

LS Series Engine Belt Spacing Guide: Corvette, G8, SS, & CTSV engines have the tightest belt to block setting (other than FWD vehicles w/ LS4) LS1 Camaro belt spacing is approximately .86" further outboard Truck & Camaro 2010up belt spacing is approximately .71" further than LS1 Camaro (1.57" from Corvette)

for replacement gaskets use part number 551690-GAS4

More Information

Bullet Point 1 Includes bolts, 1 steam port plug, and 4 gaskets.
Bullet Point 2 Made in Wichita, Kansas From Aerospace Grade, USA Produced, Billet Aluminum
Bullet Point 3 Includes steam port provision in 1 of the spacers
Bullet Point 4 These spacers are used to retain truck style accessories
Bullet Point 5 1.5 inch thick water pump spacers
Manufacturer Part Number 551697
UPC 682384790304
Weight 2.000000
ICT Manufacturer ICT Billet
United States United States
Length Inches 6
Width Inches 4
Height Inches 2
Download .PDF for Vehicle No

WARNING - This product can expose you to chemicals including lead, 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.