SKU: 19200470580

Wehrli Custom Fab CP3 Block Off Plate 01-16 GM 6.6L Duramax

$65.48 $72.75
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Wehrli Custom Fab CP3 Block Off Plate 01-16 GM 6.6L DuramaxComplete your Duramax fuel system upgrade with the WCFab Duramax CP3 Block Off Plate. Designed for GM 6. 6L Duramax diesel engines, this billet aluminum plate seals the factory valley CP3 pump location when the original pump is removed for a CP3 relocation, dual fueler setup, or CP3 conversion build. Precision CNC machined from high quality billet aluminum, this block off plate provides a secure and leak free seal while maintaining a clean,

Complete your Duramax fuel system upgrade with the WCFab Duramax CP3 Block Off Plate. Designed for GM 6.6L Duramax diesel engines, this billet aluminum plate seals the factory valley CP3 pump location when the original pump is removed for a CP3 relocation, dual fueler setup, or CP3 conversion build.

Precision CNC-machined from high-quality billet aluminum, this block off plate provides a secure and leak-free seal while maintaining a clean, professional engine bay appearance. The durable black anodized finish with engraved logo resists corrosion and matches other aftermarket diesel performance components under the hood.

Essential for CP3 Conversion Builds

When upgrading or relocating the factory CP3 fuel pump, the original valley location must be properly sealed to prevent leaks and contamination. The WCFab CP3 Block Off Plate provides a precise fit to securely close this opening while protecting the fuel system and keeping the engine valley clean.

Its billet aluminum construction ensures long-term durability even in high-heat diesel engine environments, making it a reliable solution for performance builds and fuel system upgrades.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19200470580

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4.7 ★★★★★
Based on 1335 reviews
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Product Reviews
H
Verified Purchase
Halen Rego
Lexington, US
★★★★★ 5
Using Normcore Tamper
Size: 53.3mm Flat Base
This tamper is very easy to use and has a perfect weight thanks to the stainless steel build. It evenly tamps the espresso puck, and the 53.3mm fit works flawlessly with my Breville Espresso machine. The puck prep I’m able to achieve has noticeably improved the taste of my espresso. The sleek design is modern, durable, and looks great on my coffee bar.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
J
Verified Purchase
John S.
Lowell, US
★★★★★ 5
Good tool
Size: 58.5mm
Another good tool from Normcore works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
D
Verified Purchase
Dav Swider
Lake Worth, US
★★★★★ 4
It's what'd you would expect
Size: 58.5mm Flat Base
I work in espresso professionally and got this as a tester for ergonomic purposes. It does its job as a tamper and does level with little dusting from it being 58.5mm. The self leveling does work. However depending on my baskets (using vst now) it will.self level where the lowest part of the puck is handle side and highest.part opposite. Not an issue with the tamp but something to be mindful of. Works perfectly well on my gaggia setup...not so much commercial grade. The spring is adequate but i tend to tamp a bit harder on heavy weather days.. Build quality is fine but i would have rather used a regular style tamper. Also palm tampers pretty much need to be self leveling based on the ergonomic nature.
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Reviewed in the United States on July 21, 2024
C
Verified Purchase
Cody
Grantham, US
★★★★★ 5
Solidly constructed and has a premium, hefty weight
Size: 58.5mm
Works exactly as described. Can be a bit heavy but otherwise it is a premium built product. If you have too much coffee in your basket and they're near the rim of it, coffee can get stuck to the sides of the distributor. A little annoying but easily remedied by brushing the grounds back into the basket or by "flattening" the coffee grounds in the basket first prior to distributing.
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Reviewed in the United States on November 26, 2024
M
Verified Purchase
mytmous
Lake Worth, US
★★★★★ 5
Would purchase again
Size: 58.5mm Flat Base
Fits my Gemilai portafilter perfectly. Works as expected, but can be slightly unlevel in tamping. Has a tendency to push the coffee down more on the handle side of the basket. I try to make sure I apply pressure in the middle of the tamper and it seems to make all the difference.
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Reviewed in the United States on January 6, 2026

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