Qty:1
Lisle 21100 Large Valve L... has been added to your Cart

Other Sellers on Amazon
Add to Cart
$7.85
+ Free Shipping
Sold by: Tool Liquidators
Add to Cart
$7.99
+ Free Shipping
Sold by: Toolmans World
Add to Cart
$8.79
+ Free Shipping
Sold by: Parts Marvel
Have one to sell? Sell on Amazon

Lisle 21100 Large Valve Lapper

by Lisle
4.5 out of 5 stars 34 customer reviews

List Price: $15.11
Price: $6.78 & FREE Shipping on orders over $35. Details
You Save: $8.33 (55%)
Only 19 left in stock.
Ships from and sold by Amazon.com.
  • Enter your model number above to make sure this fits.
  • Thick handles for easy lapping
  • 1-1/8" and 1-3/8" Diameter cups for larger valves
  • Unique locking tab positively secures cups to sturdy handles
  • Eliminates slippage
  • Skin-packed
See more product details
50 new from $5.05 1 used from $30.31
$6.78 & FREE Shipping on orders over $35. Details Only 19 left in stock. Ships from and sold by Amazon.com.

Frequently Bought Together

  • Lisle 21100 Large Valve Lapper
  • +
  • Permatex 80037 Valve Grinding Compound, 3 oz.
  • +
  • Lisle 21200 Small Valve Lapper
Total price: $20.25
Buy the selected items together


Product Information

Technical Details

Brand Lisle
Item Weight 2.4 ounces
Product Dimensions 10.5 x 3.6 x 1 inches
Origin China
Item model number 21100
Manufacturer Part Number 21100

Additional Information

ASIN B0009OR8TS
Customer Reviews
4.5 out of 5 stars 34 customer reviews

4.5 out of 5 stars
Best Sellers Rank #116,815 in Automotive (See top 100)
#8 in Automotive > Replacement Parts > Engines & Engine Parts > Engine Parts > Valves & Parts > Adjusters
Shipping Weight 2.4 ounces (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available July 20, 2005

Warranty & Support

Warranty, Parts:Parts

Product Description

Valve lappers are used for hand lapping valves. This is another quality product brought to you by Lisle.

Customer Reviews

Top Customer Reviews

By jason on December 7, 2012
Verified Purchase
i ordered this large one thinking it was what i needed but in fact i needed the small one. The measurements given in the product description are of the suction cup size unexpanded. So when i measured my valves this seemed like the one i needed but it ended up hanging over a bit on the smaller exhaust valves. Bear this in mind before purchase. it gets roughly 25% larger cupped down on the valve.

The grip is great on this thing until even the smallest bit of lapping compound makes its way onto it and then you'll start to fight it. keep it clean before every suction and you'll be home free.
Comment 3 of 3 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Product could use some improving . rubber boots fell off , Wood could be sanded smooth ,could be more robust in construction...
If you need this to do an 8 cylinder head job Good Luck...

It got me through 4 valves , threw it away...
Comment 1 of 1 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
This tool worked great when refreshing a set of 4.0L V6 Ford heads on my explorer. I've seen comments about them not sticking to the valve, and I have to say those people simply didn't properly prep the valve. First I took a brass wire brush in my drill to clean all the carbon deposits off the valve, then wiped each valve down with wax and grease remover. The tool might shift around if you lap aggressively, but it was rare in my application. Simply put, it works perfect!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
I have hand lapped valves since I rebuilt my first engine in 1963. These same tools have been around even longer that that and yet they still do the job. Just be aware time is the enemy of this rubber; meaning these will not last more than 3 or 4 years; but for the price you can afford to throw them away and buy new each time you need them.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Repair Clinic and E Replacement Parts have parts. E Replacement Parts has exploded views. Morrison Outdoor Equipment has valve guide tools and valve guide bushings. Check the repair manual for part and tool numbers. Brigg numbers change, so look on Google for updated number.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
A very nicely formed tool, however the description is wrong, the handle is actually a hard plastic not hard wood ( also does not have Made in USA stamped on it - but the packaging still says the item was made in the USA ).
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Works well and does it's job. I'd recommend the one with the smaller suction cups if your lapping a 4 cylinder our similar. This one would seem to work well for higher litre engines... but worked ok on my 1995 Accord.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Nice tool, suction cups are quality and stuck to valves like they are supposed too. The smart tip is to use water base lapping compound instead of oil base so the cups adhere better and cleanup is much easier.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Want to discover more products? Check out this page to see more: lapping tool

Set up an Amazon Giveaway

Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Learn more
Lisle 21100 Large Valve Lapper
This item: Lisle 21100 Large Valve Lapper
Price: $6.78
Ships from and sold by Amazon.com