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Fleece Performance Duramax Billet Coolant Block off Plate 2001-2017

3.673 product ratings

CARiD AUTOPARTS (138465)

98.6% positive feedback

Price:

$67.96

Free shipping

Estimated delivery Tue, Nov 18 - Fri, Nov 21

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

Coolant Block Off Plate by Fleece Performance Engineering®. Fleece blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers are prone to leakage over time, their billet coolant block off plate with an integral O-ring is an upgrade for your rear engine cover and will the stop the coolant leaks for good.

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3.7

3 product ratings

2 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
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1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by dennem06
Mar 23, 2025
I had a coolant leak on my L5P that ende...
I had a coolant leak on my L5P that ended up being this block off plate. It was a pain to change without removing a bunch of things, but I did manage to do it without removing anything other than this part. For those wondering, you'll need a stubby 13mm gear wrench, a flex 1/4" 13mm socket + ratchet, and a ton of patience. But it immediately fixed the problem. Awesome product.
Verified purchase: YesCondition: New
by wejfra_tclndfjojl
May 29, 2019
Leaks
Gasket that came with block off plate still leaks
Verified purchase: YesCondition: New